Experiences Of An Equine Nature By The Nome King, for jwargod @ Furaffinity ----------------- “Ohhh, Fuck me harder baby!” groaned Stacy, her firm and bare breasts wet with sweat, bouncing and churning with the thrusts from the grunting Kevin. She lay on her back over a soft bed, light poured through the windows onto the two lovers. Kevin was pushing his average sized member inside her slick silky folds, a mixture of their male and female cum dripped down onto the bed. ”Ahhhh FUCK!!!” screamed Kevin, thrusting inside Stacy with a single powerful thrust and ceasing his rapid hip movements, his buttocks clenched, and his legs twitched involuntarily as he reached orgasm. Cum shot from the tip and no condom caught the fertile seed, instead shooting straight into her womb and filling her up. ”Mmmmm, ohhh god fill me up Kevin!” she panted, rubbing her breasts as she too cummed, she felt his vaginal folds tense up and squeeze against her lovers shaft. Stacy could only close her eyes and groan at the feelings of her cunt working overtime to produce enough liquids, liquids to lubricate the cock of Kevin, who had finished emptying his supply of cum. The orgasm subsided in both lovers, and they relaxed and enjoyed each others bodies, Kevin finally pulling out of the wet silky lips and allowed the mixture of male and female cum to meld together over his cock. “Ohhh, baby that was amazing” she groaned, still thrown aback from the sensations of her orgasm. She finally gathered the strength to lift herself upwards and look at Kevin who had begun to clean his cock off with a small hand towel, smiling to himself at the things to be. “It was for me too hunny, shall we start?” asked Kevin who finally finished wiping himself down. His body was certainly one of pride; he was quite a fit individual and well toned muscles bulked through a nearly flawless skin. His had always possessed a very light colour of skin, which was reflected in his sandy blonde hair, which topped his head nicely with its soft silky strands. You could see that he kept himself in good condition, a body that some people would kill for. ”I suppose so, we’ve delayed long enough” replied Stacy, lifting her supple body upwards and placing her well toned legs on the ground. She stood upwards and allowed her nice C-cup breasts to bounce as she walked over to the chest of drawers. She pulled out some silky pants which she stood into and slid over her legs and up to her wide hips and curvy waist, which was quickly followed by a tight pair of denim shorts. She grabbed a soft red blouse and pulled her feminine arms through the arm holes, and allowed the fabric to slide over her brunette hair, and down her hourglass figure. They were beautiful people, keeping their bodies in top condition and enjoying those same fleshy forms even more. Stacy walked out the room and Kevin followed behind her, looking at her firm backside that wiggled as she walked. They both trotted down the stairs and Stacy opened the front door, where a wave of cold hit Kevin, his bare naked body feeling the full effects of nature. “Hehe, you run along to the barn my love, and I’ll get your treat” Stacy replied, rubbing her hands over Kevin’s backside and slipping them off as she walked back down into the kitchen, leaving Kevin to walk outside. He felt wetness under his feet as he stepped into the dirty mud, looking onwards onto the farmyard he and his wife owned. From the exit of the house was a path that led to a driveway, two cars were parked on the gravel. Beyond that were green fields and rolling hills that went on for miles, their farm sat in the middle of several acres of privately armed field and forest. Thankfully they owned the land, and their retirement came very early after Kevin had been made redundant from Altraton Industries, a large pension and a huge sum of money given to them by the company kept them well off and allowed them to keep this small farm. To the right of the house lay a muddy dirt path, a barn on either side of the walkway. The right hand barn was open storage for the large bales of hay and food for the non-existent animals. The right hand bard was closed off and a single large sliding door was all that allowed entry, a thick heavy padlock hung off the door handle, the only thing that kept the barn closed at night. Kevin walked further down the path, the dirt squelching under his bare feet and the cold of the wind on his body made him shiver slightly. He strolled along the pathway toward the two barns, his cock swinging freely in the wind and his whole body completely naked. Any passer by would be wondering why he was walking naked, why he had not bothered to put cloths on. As Kevin reached the Barn on the right hand side of the path, he looked back at the double story cottage that he and his wife had bought for themselves. It was a very old house with a large thatched roof and fantastic brickwork, but even though old it was very sturdy and would last a long time. He saw Stacy exit the front door clutching something in her hand, and Kevin’s heart began to race and speed up as she saw her smile grow larger on her cheeks. He wasted no time and walked into the large dark barn, a couple of electric lights brightened up the otherwise dingy atmosphere. He could hear his heart pumping loudly in his chest, thumping becoming stronger at the prospect and thoughts of what was to be. Kevin rubbed his face with both hands, wiping the rapidly forming sweat off his brow and plucking up courage to follow through his purpose. ”You ready Hun?” spoke Stacy from behind him, giving him a slight shock, but yet her voice calmed him and made him more relaxed. “I am, this would be so much harder without you” he replied lovingly, turning round to face his wife, who stood not far in front of him. Her face was ripe with both happiness and worry, a smile masked her concern as she handed him a small glass vial. Within the vial stood a strange purple liquid, it hung in the glass like normal water, but moved on its own. Variations in the colour moved around and swirled in the glass like a living being, and taunted Kevin with their movements. “Are you sure about this, I don’t want to end up like the others…” he continued, panting and panicking with the vial in his hand. “Shhhh… you wont, we’ve tried it out already on others, it will work, you did it yourself remember” she replied, her calming words soothing his panic and quenching the fires of doubt in his mind. ”Alright, here goes…….” Kevin spoke, taking a deep breath and popping off the plastic cap from the glass vial. ”Wait!!!.......I…I love you” interrupted Stacy, her eyes filled with longing and concern, her voice a mixture of doubt and caring. “I love you too baby” Kevin replied and leaned toward Stacy, kissing her once more, their lips and tongues worming around each others, sharing a moment of intimacy. “Bottom’s up” giggled Kevin, the kiss from Stacy giving him the strength and conviction to do what he wanted, even though it may be dangerous. He pulled the glass vial up to his mouth and tipped the liquid down his throat. He did his best not to let the substance touch his tongue, but the sweetness of the nectar like liquid caused him to enjoy the taste of the strange formula. He felt the liquid trickling down his gullet and into his stomach, warming all the flesh it touched, and caused a heartburn like warmth to settle in his stomach. The warmth was not uncomfortable or painful, but a strange pulsating heat that grew stronger and spread over his body. “Well…..what does it feel like….” She asked eagerly, moving her head from side to side, anxious to hear the effects of the brew. “It feels….warm….and hot” replied Kevin who moved the glass vial away from his face and resecured the plastic cap on the vial. He handed the vial back to Stacy, who slipped it into her pocked and watched Kevin with interest. Kevin panted and felt his heart slow down in his chest, for the moment he seemed to be calming down until he began to feel a pressure in his groin. It was like a rush of blood to the head, but around the hips and genitals, accompanied by a powerful pulsating heat which grew stronger with each breath. Kevin could no longer feel the cold of the wind rushing in through the open bard door, his whole body was heating up, and sweat beaded on his skin and slowly trickled down his body. “Oh…..baby look, its working!” shouted Stacy who was looking at his groin, more specifically his cock and balls. His foreskin was folding over his glans by itself, moving back over his cock. ”Ohhh……it feels so strange…” groaned Kevin deeply, feeling the skin folding over the hypersensitive glans of his cockhead, it felt truly amazing. But the change did not stop there, his cock started to shrink, flesh receding into his groin. Even though aroused, Kevin found himself unable to get a boner; it felt like his cock was permanently flaccid. His once average sized member was shrinking down before his eyes, receding to a measly 2 inches and finally 1 inch. Along with the incredible sensations that were surging through his cock and crotch, he felt his heart slow down, and even though his body was undergoing an apparent stressful change, he was calm. ”Its working, I knew it would!” he cried out, watching his cock move under his body and round to his perineum. Eagar to feel his changing form, he reached a hand down under his cock and balls to feel the next stage of his change. His fingers only felt skin, but soon that same skin began to feel wet and lubricated, and without warning his skin split open like a wound and leaked fluids. The long slit split open his skin and widened open, slimy goo like fluids dripped out from the crack which dribbled onto the cold hay covered concrete. ”Ohhh..AHHHHH!!!” Kevin shouted loudly, a surge of pure pleasure rushing through his body as he felt his testicles suck up into the new slit like a vacuum cleaner. His skin moved up inside the crack and pulled his testicles within him, making a loud “sclorp” sound as they popped inside him. The sensation of his testicles moving through soft silky wet folds and move around inside his body was one that could not be described. But eventually he lost sensation in his balls as they moved up further inside, changing into something different. His attention was no entirely focused on his cock, which began moving again, this time around the top of the newly formed slit. A slight popping sensation sent a shiver of sexual lust shooting up Kevin’s spine, as his cock moved round inside the slit and pushed itself upwards into his body, nestling just below the top of the hole. ”I….Its….a clit, its working babe, Ohhh!! It feels amazing!” cried out Kevin, his cockhead had reshaped into a clit, the foreskin folding inside and round the walls of the slit. His sensitive skin that once covered his cock was stretching and reforming, moulding around his rapidly changing sex. His foreskin was flattening out, and finally stopped stretching around the slit, until his anatomy was that of a female. The once cockhead of his penis was now a clit that poked out of a silky pair of feminine folds which used to be his foreskin. His testicles descended into his body and had become a fully functioning pair of ovaries, his whole vagina was perfectly formed and the feeling of the cold air hitting it was one to be challenged. “It worked! You’re now female, I can’t believe it….” Gasped Stacy, looking at the flat crotch which led down to the slick female cunt, once a home to a male penis. Kevin couldn’t help himself, and knew what it was like to be a man, now he wanted to feel like a woman. His fingers creeped their way over his crotch, down between his legs and finally into his wet cunt. “Ohhh” Kevin moaned delicately, his fingers feeling inside his moist warm folds, the walls of his vagina felt unbelievably sensitive, and he could feel every inch of his fingers. His other finger began to stroke his clit, teasing it and sending waves of orgasmic pleasure through his cunt, which caused more fluids to leak out uncontrollably. Lost in sexual pleasure, Kevin hardly noticed his just formed cunt changing again, this time starting to discolour strangely. His cunt and groin began to darken in colour, the folds deepening in shade. Kevin couldn’t feel the colour change, but he could feel the increasing mass of his vaginal lips which swelled and increased in size. He groaned at the feelings that rushed through him, his cunt lips puffed up and became muscular, his clit disappearing into his thick folds and hid beneath his moist lips. The skin kept darkening until they shone a matt black, his thick cunt lips dripping fluids from the larger and more muscular vagina that he now possessed. “Ohhh, Stacy, is it working….am I a mare yet?” cried out Kevin, pumping his matt black folds thoroughly, fluids dripping out of the equine lips. ”Yes baby, you’ve got a beautiful horse cunt, but don’t stop, there’s more to come” replied Stacy, astounded at her changing husband who masturbated his new equine anatomy before her. And she was right, the changes had just begun and new sensations far more powerful were about to overtake the simple sexual thrill of a sloppy mare cunt. The first thing that Kevin noticed was the odd stretching feeling that gripped his feet, almost as if they were stiff and he was unable to move them. The feeling manifested itself into growth of his foot, the toes moving further away from his heels causing strange cracking noises to exit his digits. Eventually his centre of balance was put off, and he nearly fell backwards but managed to balance himself on his tip toes. He found his longer feet to be surprisingly strong and somehow more comfortable than standing Plantigrade, now a digitgrade being. However standing on two feet was a more difficult task and he eventually lost his comfort zone, and fell forward. As he pulled his hands out in front of him, he slipped his fingers quickly from his muscular cunt, making a loud “scluping” noise, and a wave of sexual pleasure to wash over him. Slamming his hands to the floor, his ass stuck high in the air and his new digitgrade posture did not aid his endeavour. However Kevin somehow felt right at a quadrupedal stance, it seemed to be the right position to stand in. Confusing and conflicting thoughts ran though his head, his subconscious telling him that it was wrong, to stop what he was doing. But his unconscious mind loved it, revelling in the sensations that his transformation brought, the surge of lust brought on by the new hormones that surged through his bloodstream. ”Ahhhh!” gasped Kevin loudly, feeling his toes crack and click loudly, but painlessly and only the vibration of his reshaping bone could be felt up his leg. He could feel his middle toe twist around unnaturally while he lost sensation in his other digits which began to recede into his foot, now far longer and thicker than before. More cracking continued in the digit, and Kevin was overcome with a fascination. Curiosity forced him to look down past his chest to his feet, where he watched the single toe on each foot, enlargen and inflate with mass. As if somebody was pumping the digit full of air with a bicycle pump, the toes puffed up and swelled, the skin merging round both feet until the toe was the same size as the foot. His feet were barely recognisable as human; the only give-away to their once Plantigrade nature was the human skin that covered them both. The strangest feeling struck the end of Kevin’s strangely shaped foot; the nail that jutted out from the large fleshy toe began to enlarge on both feet. More nail and mass pushing out from the toe, as if there was somebody forcing the bone through the toe. More and more keratin emerged from the fleshy shape, curving round with the length of the nail and eventually pushing past the toe until Kevin stood upon the large flat thick nail. The growth eventually stopped and the flesh of his digit, folded over the nail, forming a set of hind horses legs, devoid of fur but complete with hooves. ”Oh baby….Its beautiful!” cried out Stacy, trying to stifle her giggles at the absurd sight of her husband groaning loudly, unable to pleasure his mare cunt which dripped fluids onto the floor. ”It feels so strange to have hooves…..like I’m walking on my nails” replied Kevin, trying to stifle his animalistic urges and focus on describing the feelings. It was a certainly odd feeling to be walking digitgrade, as if you were up on tip toes, but you were balancing on the tips of your toenails. A strange sensation it was, but not unwelcome and certainly not un-liked by Kevin. ”Ohhh….I can’t take this anymore….help me my love!” he groaned loudly, his hands preoccupied with keeping him upright, and therefore unable to pleasure himself. Stacy looked at Kevin’s eyes, knowing him to be unable to control his desires, this being rather dangerous if he was to retain his mind. But she could not let him go unsatisfied, and she walked over behind him and round to his large backside. Kevin could sense her behind her, and part of him wanted to rear up and kick her with his new powerful hooves legs. But he resisted and stomached his fear, knowing it would be a gateway to pleasure. With a shaking cold hand, Stacy placed her finger gently on Kevin’s leaking mare lips, the warm moist lubrication somehow comforting to her. ”Ohhh, sooo goooood!” groaned Kevin loudly, his voice distorting slightly and allowing small hints of equine noises to escape his mouth. As Stacy gently rubbed his cunt, Kevin could feel tiny prickling sensations moving around his backside and cunt, strangely spreading like a skin infection. Stacy watched as the itching spread around his backside which began to widen and enlarge, loud cracking noises ran through his body and echoed in the barn as his hips realigned to a more suitable position. What were once his knees and upper legs began to move closer to his flanks, the upper legs shortening and becoming vestigial, his lower leg now the upper horse leg, and his foot, the rear bending lower equine leg. His widening hips pushed the flesh outwards, causing his buttchecks to spread apart and allowed even easier access to his slick black horse vagina. The Tickling finally manifested itself into the production of tiny light brown hairs, which poked through the human skin of Kevin’s rear. Slowly but surly, a short thick pelt of fur began to spread across his backside, the hair poking through the skin and forming new fur follicles. Stacy ran her hand across his widening and enlargining horse backside and felt his soft fur, rubbing his buttchecks and then her finger founds its way to his still human asshole. Using his cunt lubrication she slipped her finger inside his asshole, the double penetration caused him to snort loudly and groan in pleasure. As she pushed her finger deep inside his anus, the skin just above his massive ass began to move over the muscle, a nub forming at the base of his spine. His tailbone shifted and bent outwards and poked the skin, sections of spine that were once vestigial became active once more, lengthening out with mass and weight. The expanding bone pulled flesh, muscle and ligament alike out from his backside, a long thin fleshy tail worming its way out from his flesh. Kevin gasped at the feeling his tail moving out from his spine, feeling the cold air from the barn hitting it, and the warm air from Stacy’s breath on the skin of his newest equine addition. ”Ahhhh…more….I want more!” groaned Kevin greedily, wanting more fur to grow and egging on the changes of his body. Fur grew around the base of his tail and a slightly irritating pins and needles feeling rushed across the entire length of his tail, making Kevin swish it from side to side in frustration. As he flicked his tail, coarse horse hair pushed out from the skin, growing as he moved it quickly. The fur grew quickly and seamlessly out from his skin, covering the fleshy tail and with a final flick, the sensations ceased and he had a silky black horse tail to show for it. With another pleasurable push from Stacy, he groaned loudly again, His ears pricking up at attention of the feelings of his cunt. But his ears did not stop moving there, burning sensations ran across his ears and focussed their attention on the tips of his lugs. His ear tips began to lengthen and within 5 seconds, his ears were already pointed like a knife. Kevin panted and gasped as he felt his skull reshape, the ears moving upwards closer to the top of his head. Old muscles moved and reactivated, while new ones attached themselves to the base of his ear, the lobe curving round into his head and the tips of his ear pointing upwards. Kevin felt his new long ears tingle, fur growing around and inside, covering them and part of his face and neck. He felt the new muscles twitch around his ears, causing them to flick and twist, the sounds changing direction as he moved and twisted his new horse ears. “Oh baby, you have….Ohhh… nooooo Idea how good….this feels!” moaned Kevin as he flicked his horse ears, the sensation of his hairy tail, the clopping of his equine hooves on the ground, the flicking of his furry horse ears, and the sensitive orgasmic sensations of his mare cunt, all of them tormenting and driving him crazy. “Oh baby, you’re going to be such a pretty sexy mare” replied Stacy, still rubbing his slick horse lips, the occasional squirt of female equine cum staining her cloths. The tickling sensations spread down his legs down to his thick horse hooves, where it poked through the skin and left no trace of his human heritage. At this point, his rear end was almost unmistakably equine, slightly smaller than a fully grown horse, but not far off. His Chest and upper body were slightly smaller than his rear end, but had increased in mass. His upper body was completely human, aside from the long horse ears and patches of fur around his face. Stacy’s finger was expertly massaging both his mare cunt, and ass which had begun to thicken with muscle. The skin started to darken into the same colour as his cunt, the thick anal walls pushing outwards into a tube like shape from his backside. The walls now more pronounced moved downwards closer to his cunt, until the thick muscular flesh merged with the large anal walls and formed a single black unit of vagina and anus. His reproductive system now looked exactly the same of a fully grown mare, and fully capable of proper reproduction. Kevin knew things were going well; it was only recently he had a lot of success with the other test subjects, and he knew that the process was reversible. Kevin could only snort uncontrollably like an animal as Stacy began to work more of her fingers inside him, stretching his large animal cunt outwards causing him to grunt and moan like the horse he was becoming. As Stacy stretched his folds open with ease, he felt his nose start to twitch and tighten. It was almost as if he was clenching the muscles around his face, and he watched as the skin colour of his mouth and nose began to shift. It changed from a colourful pink, down to a deep dark grey and localised only around his nose and mouth. He felt his nostrils reshape and his mouth thicken with muscle, small tiny hairs moved out from his chin and lips, his nostrils reforming into a longer configuration. Kevin panted and continued to snort through his larger flared equine nostrils, enjoying the feeling of the changes. “Oh baby, you go so deep” giggled Stacy, managing to fit her whole fist inside his large cunt, his backside now the size of a fully grown mare. Kevin opened his eyes wide at the feeling of her fist and arm moving deeper inside of him, his hands starting to crack and change. “It feels….like…..Ohhh…cock….I want a cock inside me!” screamed Kevin, the feeling of Stacy’s balled up fist and arm was like a stallions shaft penetrating him. He imagined a large stallion on top of him, pounding his filthy mare cunt and making him his own. Kevin flicked his ears at thought of having a stallion ride him, his hands already beginning to shift. “I want this…..I want hooves!” Kevin cried out loudly, snorting and flicking his tail as Stacy pushed her arm inside him; her arm was encompassed in warmth and wetness, the throbbing pressure of his cunt making her horny. Kevin’s hands started to lengthen outwards just as his foot had done before; the increasing pressure on his wrists was becoming painful. Kevin looked down past his large flared nostrils and down to his hands, where he watched the middle finger fatten out like a sausage. The other fingers simply shrunk, moving back into the long hand and disappearing. His middle finger moved out and thickened, becoming even wider and fatter. The Skin around his finger merged with the flesh around his long hand, which was now the same length as his lower arm. A familiar sensation hit his fingernail, keratin pushing through the flesh and outwards. The thick nail grew larger and larger, curving round the thick digit and forming the basis of a hoof. Kevin knew that he would have to switch postures eventually and with a powerful push from his lower arms, he lifted himself up onto his growing hooves, bringing him up to level height. His spine was now straight, and his belly was fattening out with mass, fur growing and tickling along his body. As he became more used to his equine posture he felt an off bulging sensation between his hind legs, to which Stacy was drawn to. “Oh Kevin….you’ve got a pair of beautiful breasts, two gorgeous mare boobs!” Stacy called out, her attention drawn to the large black inflating mare milk factories that sat between his legs. He felt his boobs enlarge between his thighs and under his cunt; they wobbled slightly and rubbed against his inner leg as he clopped his hind hooves on the ground. His front hooves had nearly finished changing; his nails were now indistinguishable from a pair of normal horse hooves. “Oh god, it feels so amazing!” groaned Kevin, Stacy pushing more of her arm inside him as the fur reached his shoulders and front legs, moving down and tickling the skin. Tickling brought along the growth of the short horse fur which covered his front legs and upper body, muscle bulking up around his chest. His upper arms cracked and shortened, his elbow receding nearer to his shoulder blades, his lower arm and hand becoming the upper and lower horse leg. Kevin was now a true quadruped, unable to stand on two feet but quite comfortable on four hooves. The fur however did not stop there and it continued to grow up his neck, spreading like wildfire across his skin. A smile formed across Kevin’s face as his neck started to lengthen; thickening muscle bulked around it and supported the growing weight. Kevin was so pleased when he felt his face start to shift, his already thick horse lips and nose ready to be pushed out beyond his eyes. He wanted this for so long, to feel what it was like to be an animal, to know what I was like to be one. As his face lengthened outwards, so did his neck. Cracking and crunching sounds echoed through his face and head. Stiff sensations gripped his face and neck, bone changing and muscle tensing. “Ohhh.. Stacy….its…..sooooo….N..Ni….Neice…..NEii….NEIGHH!!!!!!” Kevin grunted, his vocal cords changing and making him unable to speak. He felt so pleased that he could sound like a horse now, but disappointed he could not express how “nice” his body felt. “I know baby, your almost there” replied Stacy calmly, rubbing her lovers large furry backside passionately, her arm all the way inside his large thick mare cunt. His neck cracked and expanded outwards, reaching full length as fur grew all along the thick length of it, covering the skin. The same irritating sensation of prickling poked its way along the top of his neck, and through the fur the tips of coarse black horse hair emerged. His pre-existing blonde human hair began to darken, changing to become longer and longer until it rested at the same length as his growing mane. Kevin felt the last of his equine mane growing through and felt quite proud at its beauty. The final changes hit him, his face reaching full length, the fur growing around his skin and covering all but his thick lips and horse nostrils. The amounts of pleasure radiating from his cunt were unbelievable, and he could no longer hold himself back from his true wants and desires. Kevin did not know what would happen if he orgasmed, if he would loose his mind completely. But he didn’t care, he wanted to cum so badly, and his wish was granted when he felt uncontrollable twitching in his cunt, followed by a tidal wave of orgasmic energy. The pulse of pleasure rushed through his body like water, filling his furry mare body with equine ecstasy. His irises began to enlargen, and the white of his eyes disappeared as his skull shifted once more, moving his eyes to the side of his head, his nose pushing them apart. He closed his changing eyes and the feeling of his orgasm, pulsating pleasure rushing through his body as slimy mare cum squirted out from his thick black cunt, spraying Stacy with its musky fragrance. “NEIGHHH!!” Kevin whinnied, letting out a long Neigh as the final pulse of his orgasm caused him to open his new equine eyes in a new sideways perspective to the world, pleasure untold making him grunt and whinny. Stacy smiled with happiness, knowing Kevin felt happy at his form, and they could proceed to the next step. Kevin’s orgasm slowly died down and eventually became non-existent, allowing Kevin to explore and feel his new body properly without being under a haze of sexual lust. "Oh Kevin, you look so wonderful" remarked Stacy, running her hand over the new mares firm rump, feeling under his tail as it swished. Kevin felt truly alien; his whole form was strange to him, as if he was dreaming. But after the months of sleepless nights, trying to perfect their modified Serum, he knew it was real. He had been rewarded for his efforts with his transformation into a mare, the animal he was aiming to be. But he had to get back to work; he had to try out his new equine body and experience as much as he could. He nickered loudly as Stacy withdrew her wet arm slowly from his muscular horse vulva, bringing wet fluids along with it. The wave of pleasure died down once more and he heard Stacy walking around behind his flanks. He snorted through his large flared nostrils as Stacy ran her soft hands across his large back and belly, rubbing his fur and skin gently. Kevin found it most peculiar to stand up as a horse, his back legs felt somehow comfortable in a reverse jointed position, but his front legs felt truly alien. Standing on hooves felt so how right, as if had been doing it his whole life but he simply lacked the body to do it. As Stacy moved round him, her hands moved over his muscular upper flanks, the feel of her petting comforting. Kevin moved his thick neck round to the side, his right eye looking at Stacy’s own. It was also strange to see through the side of his head, rather than the front, and he knew he would miss depth perception. But he was a horse now; he had to immerse himself in what it was like to be an equine, right down to the emotions he felt. His face felt rather strange however; at first it almost felt bloated, as if his nose had taken up a huge portion of his face. But having his nose and lips to what felt like a mile in front of his eyes; was a truly bizarre one. He ran his tongue inside his much longer mouth, it seemed his molars hadn’t moved an inch, but grown in size. His canines and incisors however were much further in front, a large gap between his molars and front set of large flat slab like teeth. His tongue was much longer than before, and found it to be much more flexible than previously. Wanting to test every part of his body, he opened his large muscular lips and poked his tongue out as far as he could. Most of his long 15 inch tongue was hidden in his long equine mouth but he was able to extend 5 of those inches outwards and along the front of his nose and nostrils. He felt his warm taster running across his nose, it felt flat and rough, but he could also taste the salty sweat that lightly covered his large matt grey coloured horse nose. Stacy moved round in front of the new mare, and slowly moved her hands up to his face, rubbing his face and caressing his large furry cheeks. "Kevin? Is that you baby, is it still you?" asked Stacy nervously, hoping that he had not been reduced to a mindless animal like the rest of the test subjects. Kevin tried to articulate his lips and speak, but only let out grunts and other horse like noises. After a couple more attempts to say "yes", he resorted to nodding his large head gently. Stacy smiled and leaned forward, planting a kiss on his wide furry face, Kevin drooping his ears to the side, loving the feeling of his Human wife's soft lips against his fur. "Thank god, I thought for a moment I had lost you, do you want to try and walk out to the field for starters?" asked Stacy, massaging his large neck and fur. Kevin nodded again, doing his best to look at Stacy straight on, he was able to look straight ahead, but it was like crossing his eyes, if he did it for too long it felt painful. Stacy kissed her mare husband on the face and walked back behind him and towards the barn door, which was still left ajar. Loud creaking and rolling noises echoed through the barn and cause Kevin to prick his ears back at the noise. His hearing was far more sensitive than before, but most of all he was able to detect the direction of sound by moving his ears. "Common darling, give it a try" spoke Stacy eagerly, trying to support and comfort Kevin as he struggled with his new posture and limb configuration. One hoof at a time he bent his front leg and lifted it up, he felt the same bicep muscle in is upper flank lift, which was much thicker now, but a little stumpier than before. He couldn't feel any muscle action in his lower front leg, as be bent it felt like letting your hand fall limp forwards, only powerful ligaments pulled it back straight. Strange though it was, with his reverse rear leg configuration, it felt surprisingly natural. Even though he felt fairly comfortable with his new leg alignment, he still found it difficult to walk, but after this first couple of clops along the concrete, he managed to get the hang of his legs. Standing on all fours was far better than standing on two legs. Being bipedal was difficult and arduous, but being quadrupedal was much more comfortable and he quickly learned how to walk forward with ease. Kevin found himself clopping around the barn, flicking his tail and ears and feeling quite pleased with him. Eventually his pride had to be stifled as Stacy was still stood by the door, pleased that he was managing to walk happily around, but getting rather cold. Kevin clopped toward Stacy, bobbing his neck and head happily. He reached Stacy and nuzzled her with his nose, before clopping outdoors into the yard. Flaring his nostrils Kevin took a deep breath through his new lungs, allowing the cold air to fill him up. It felt amazing to breathe so much air, and the wind on his soft furry pelt was not cold, but neither warm. Stacy walked out of the barn next to the large female horse, still referring to Kevin as a male for a good reason. Kevin knew he had to remember his origins; he could let himself think he was anything but human. If he was to return to his human form, he could not let himself think otherwise, but he knew that it would be difficult. Kevin felt the dirt and mud beneath his hooves, squelching down into the muddy yard pathway, which led to a large penned off area, a place where Kevin could stay for the day and graze. Kevin caught sight of the green grass, and felt his large muscular mouth start to water. Even though eating grass and hay was one of the less appealing aspects of becoming a horse, he found it to be quite an appetizing thought. Now he was truly equine the idea of munching on grass was making him hungry, his large stomach growling inside him and wanting food. Stacy kept leading him toward the pen gate; Kevin now quite used to walking on all fours, and didn’t even think about moving his legs properly. Stacy ran past his head, allowing him to see her quickly dart by his eye and toward the gatepost. With a hefty heave she pulled the gate open and created a space big enough for Kevin to clop through, and a smile on her face confirmed her wants. Kevin obliged and trotted inside the enclosure, leaning his neck down low and sniffing the grass with his flared nostrils. By god it smelt good, his sense of smell seemed heightened as well, it was a strong grassy smell but it seemed almost sweet. Kevin kept sniffing loudly at the grass, before moving his large lips around the greenery, the blades of grass tickling his thick mouth. He loved to articulate his thick lips, they were so flexible and versatile, and part of him wondered what it would be like to kiss with such and amazing mouth. These thoughts vanished when he squeezed his front flat incisors together and pulled some blades out from the ground and pulled them down his mouth. Using his tongue he managed to get the grass to his molars where it gathered in a small ball, his teeth working their magic and grinding it down. As the juices were secreted from the plants Kevin got a taste of it, it was like eating a sweet cabbage, but much rougher and finer. Even though probably difficult to chew, the taste was very nice and very appetizing. After swallowing his first mouthful, he felt the need to eat more and more grass, seemingly still feeling hungry. He heard Stacy behind him move back along the path toward their house; Kevin trying to remember what was she was going to do next. The rest of the morning and afternoon he spend grazing on the rich grass, often having to flick his tail quickly to remove flies that seemed to like to land on his large furry backside. Through it all though he still felt horny, his cunt throbbed and he wanted to be mated still. Part of him knew that this was simply heat, a constant state of lust that all animals went through in order to reproduce. But he couldn’t help control his equine urges, as he daydreamed thoughts of a large black stallion filling his mare cunt with cum lingered in his mind. He was unable to shake these strange and confusing desires, trying to focus on other things like which part of his body he liked the most. He was certain he favorite part had to be his mouth and ears, having such control over simple things such as a big pair of horse lips and a furry set of equine ears, he never though such simple things could bring so much happiness. He experimented with his ears and mouth during the day, using his lips to feel what he could not see on the ground, allowing him to find the most succulent shoots of grass. And his ears were often pricked up and constant swiveling around, hearing the birds singing, trees rustling in the cool breeze against his fur. He quite liked his tail too, it felt nice to have such a useful appendage, and it was most useful at swatting away the annoying bugs that would often land on his rear end. The day grew darker and Kevin felt rather full from his day of grazing, he most certainly enjoyed being a horse rather than a human, though he did miss having opposable thumbs, or hands for that matter. But having hooves was just fine, it made it much easier to walk around, and having four legs was always helpful. Kevin pricked his ears up at the squelching sound coming down from the direction of the house, and he turned his large muscular neck sideways to see Stacy wandering along the pathway in the same clothes he had seen her before. She was however carrying another vial, only this one was filled up with the same serum he had used earlier. Of course, how could he have forgotten, he was so busy enjoying himself that he didn’t remember the program they had planned. Stacy walked to the gate and unclipped the clasp, walking over to Kevin who trotted over to meet her in the mud. Kevin brushed his face against Stacy’s chest, sniffing her scent through his keen nostrils and shuddering at the smell. ”You ready baby, this one is timed so we’ll have a short while together” spoke Stacy, rubbing her husbands large equine face, and revealing the serum in her hand. He looked at it with his large brown eye, his ears folding down to show his displeasure at her intentions. He knew that it was part of their plan, but letting her know he wasn’t sure of the outcomes was sure to do no harm. A short nicker and quiet whinny from Kevin displayed his contempt at the situation, Stacy rubbing his head and ears gently. “Shhhh shh, its ok hunny, it worked on you; I’ll be fine” whispered Stacy, slowly running her fingers through his long mane and doing her best to calm him. Her words comforted the uneasy mare as she began to undress. With one hand gripping the vial, she grabbed her blouse and lifted it off the top of her torso, revealing her beautiful breasts beneath which hung freely without the need of a bra. Her skin glinted off the deep red light of the coming night, the sky alive with reds and oranges of the setting sun, dusk upon the human and horse. Her Demin shorts were next, and she unbuttoned them and slid the daisy dukes down her shapely buttocks and legs, letting them land in the filthy mud. She tossed her blouse away, neglecting to remove her silky underwear and lent in to kiss Kevin on the nose. “Oh baby, what ever happens know that I love you so much” said Stacy passionately, rubbing her female husband’s fur and pulling his thick equine lips to her face. Kevin felt her mouth open wide on his lips, and he did his best to kiss her gently. Stacy’s open mouth plunged deep inside his muzzle, his thick horse lips gently stroking her mouth as she kissed him deeply. She pushed her tongue gently outwards and prodded his large slab like teeth, prompting him to open them up and expose his own taster. His long flat rough horse tongue pushed inside her mouth and around her tongue, his sticky saliva mixing with her own, their kiss shared passionately and their bond could not be broken even beyond species. Their kiss went on for what felt like forever, Stacy could taste and even smell the hint of grass in his breath, her hand rearing away from his face. Their kiss broke and a small string of saliva connected their two mouths before breaking, leaving Stacy speechless. “That was…..amazing...” gasped Stacy, trying to comprehend the sheer pleasure and passion of the most amazing kiss of her life. She imagined kissing a horse would be unpleasant or uncomfortable, but it was the most natural and sensual experience of her life…..so far. Stacy popped the plastic cap off the glass vial, and smelled the serum. It seemed odorless but had a strange musky hint that quickly filled her nostrils, the odd perfume making her feel even hornier. Taking one last glance at Kevin, she pulled the vial up to her mouth and drank all of the watery purple liquid, just as Kevin had done not 8 hours beforehand. The sweet liquid trickled down her throat and warmed its passage to her stomach, where the burning warm sensation pulsated in her stomach. “Oh Kevin, It’s going to be so wonderful….we’ll…..what’s….ohhh my” gasped Stacy, her sentence interrupted by a flurry of warmth down to her crotch and arms. It was like her blood was abnormally warm and her body was in front of a fire, even though the cold wind of approaching night brushed against her soft skin. The heat quickly built up in pulses around her groin, blood being pumped to the most important part of her anatomy, the part which the serum would focus on. Her vulva began to swell in arousal, her clit rock hard and her lips leaking onto her silky panties. Rushes of arousal penetrated her deeper than any cock could, the strange pulsating heat making her feel relaxed and calm, but also frustrated and horny too. The heat eventually manifested itself into strange sensations, and Stacy knew what was going on. Reaching a warm hand down, she pushed her fingers under her panties and down towards her nether regions. The tip of her middle finger brushed against her abnormally large clit, sending waves of alien pleasure through her body. ”Ohhh….AHHH!!” screamed Stacy, touching her clit, which began to push out and engorge greedily with the warm pulsating blood. Vaginal lubricants leaked uncontrollably out from her cunt, the clit pushing and enlargining outwards, making her drool and groan in ecstasy. Her clit expanded outwards from her cunt lips, dragging against her fingers as it grew forwards. Her vulva started to shape around and up her clit, growing longer and tighter. The sensation of her puffing g-spot was too much to handle, letting out deep groans as the long object began to resemble something far more masculine. "Oh Kevin....it feels so good, I want this so much, I want a cock...ohhh...." gasped Stacy, her clit now about 2 inches long and at least 1 inch in diameter. Her puffed vaginal lips grew longer and started to hug themselves around her lengthening glans, a slit like hole forming at the tip, her new urethra leaking precum onto the mud below. She looked down at her dripping cock to see her cunt lips wrap around her supersensitive cock, the skin around her cock base pushing up and merging with her once flat groin, now home to a strangely shaped cock. The rest of the skin folded over her new cockhead and squelched into place as a foreskin, shivers of pleasure shivered their way through her body at the feeling. "Ohhh.... It feels so good....Ahhhhh!" Stacy remarked, her words yet again interpreted by a wave of pleasure with power untold that rocked down her dripping slit. She instinctively pushed as if giving birth, only to gasp in relief and pleasure as two large skin covered testicles plopped out from her wet slit. She felt the weight of her new low hanging balls increase and decrease as they pulsated up and down, churning and producing cum for her use. Reaching a curious hand she slowly stroked her large testicles, only to quickly grab them and pump them up and down. "Oh god yes!! Make me a man, it feels so good!" screamed Stacy, Kevin’s own mare cunt started to throb and leak female precum out of his hole in arousal, he wanted desperately for his womb to be filled with her seed. Her cock grew longer and longer, converting mass from her belly and crotch into tissue for her inflating mass, which eventually stood to an impressive 6.5 inches, nearly reaching 7. A single womanly whimper from Stacy was all that was left of femininity as her slit closed for good, creating her perineum beneath her balls which hung under her large cock. The sensation of having a cock felt so much better than having a cunt, at least that what was Stacy though. It was like having The Sensitivity of her vulva all around a long stiff rod, with a huge hyper inflated and super sensitive g-spot at the end of it, which leaked sensual sweet male nectar. Stacy wrapped her hand round her long cock for the first time as a male, running her fingers over her glans and shaft, making her pant and smile happily . "Oh Kevin....now I see why you wank so much! Who wouldn’t want this!" groaned Stacy loudly, Kevin’s mouth drooling in desire from The pre-cum leaking from her long shaft, the tip bright red as her foreskin was folded behind her glans. Kevin could hardly contain his excitement, his tail flicked to try and cool his red hot mare vulva, which drove him made with its arousal, induced throbbing. Through one of his eyes; Kevin watched with his ears perked up at his lovers changed sex, still leaking precum from the Shiny red tip. However she was not to play with her new anatomy for long, as before she could even begin to enjoy herself, the second activator in the serum came alive, processing the next stage in her transformation. Already ripe with lust, her arousal shot to higher levels than she had ever experienced as her cock began to fill with blood. It was like a super-stiff erection, only 10 times more powerful, hot blood shooting inside her cock. Grunting she pumped her hands around her shaft, which began to grow in both length and size. The growth was slow but steady, each pulse of blood adding more length and mass to her enlargining shaft. She watched eagerly as her foreskin and shaft began to feel sticky, her erection growing even stronger as finally, her cock touched the skin of her crotch and belly. Without fair warning the sticky skin began to merge with the skin of her crotch, the foreskin folding over the glans and becoming loose. She felt her long cock detach from the skin covering her cock, until she was left with an animalistic sheath which ran from her balls, all the way up to just below her belly button. She rubbed the sheath and groaned loudly at the feeling, the skin still very sensitive and sensual. The arousal caused her cock to stir within her sheath, eventually the familiar tip of her red shiny head poked out, but it seemed slightly darker. ”Ohhh….Its amazing!” Stacy screamed loudly, touching the end of the hyper-sensitive shaft, the head starting to flatten out and puff up around the edges. Stacy rubbed the tip of her flattening head, the sides curved round so it gave the appearance of a mushroom. The top of her cock head was flat, but bulged in the middle slightly where her urethral slit began to push out from the darkening flesh, forming a tube like protrusion. Meanwhile her shaft had already begun to emerge from her sheath, blood pushing the Walls of he cock outwards, making it thicker and longer. Heat like fire burned at the base of her mushroom shaped horse head, more flesh expanding and pushing our from within her, the veiny cock jutting out at an impressive 9 inches. Kevin drooled uncontrollably at the sight of her shaft, knowing instinctively what it was. "Ohhh.....Kevin! My horsecock, it's so hard!!" screamed Stacy, her equine shaft pushing out to a long 12 inches before stopping and allowing Stacy to examine it. It was no longer human; the skin was light but had learner patches of matt black and brown over the shaft. The head was wide and tapered up to a rounded flat head; it looked like she had a large black mushroom on to tip of her shaft. Tiny bumps dotted around her wide large glans, which became smaller as they moved away from the tip. Her urethra stuck out like a price of thick hosing, the soft tube like protrusion dripped equine precum over the head, dribbling down the shaft and over her sheath. She possessed a stunning example of a horses cock, right down to the colouration and shape. Kevin couldn't help himself anymore, he wanted to have it inside him, and he wanted to know what it felt like; what it tasted like. Trotting forward he sniffed and snorted through his nostrils and sniffed the tip of her large wide glans, puffing warm air over Stacy’s manhood. After a little more sniffing, Kevin rather enjoying her male musky perfume, he arches his neck upwards. With his new eye positioning he couldn't see where he was plunging his mouth down onto, but after a little licking and feeling around her shaft, he found her head. The explorative licking was making Stacy gasp in pleasure, before Irving had even gotten his mouth around her shaft. Like a perfect fit, Kevin slid her cock down his muzzle and deeper into his mouth. He was shocked at how he could feel all away the length of his mouth, feeling and inspecting every inch and vein of her long equine shaft. Eventually his lips reached the sheath and the tip of her cock was positioned just behind the entrance to his long gullet. Using pressure and his big thick lips he began to suck her cock gently, his long horse tongue wrapping around her shaft while moving his neck and head up and down. Ohhh Kevin....more please more!" groaned Stacy loudly, moving her hand down to her large testicles which Began to inflate as she churned them. A rush of pleasure shot through her body and up her spine. She moved her hands round Kevin’s head and mane, running her hands through his long horse hair. “Oh your so beautiful, you mane is so soft, your mouth!! Oh my god!!" Stacy kept screaming, her horse lover continuing to suck her off. Stacy continued to run her hands through his mane and down his head lovingly. Stacy felt her neck become stiff and rigid, her neck locked in the position of looking at Kevin. Curled by her lust, the transformation began to change her neck and shoulders, her arms bulking up with muscle. She groaned loudly, each lick and suck from Kevin’s long equine mouth; brought more waves of pleasure, causing more muscle to bulk up and her neck grow longer. "I'm.....so sexy!! Oh god yes...make me a stallion...nnnnnyyyyy....Neighhh!!!" Stacy’s neck grew long enough to stitch her vocal cords, allowing her to whinny as neigh like a horse, but not loosing her ability to speak....yet. She snorted loudly and groaned in pleasure, every inch of her succulent horse member was being gently licked and sucked off by her equine mare lover. Her fingers were next to be afflicted by the same stiffness she felt in her neck, which was followed by the painless reshaping of bone. The vibrations of the clicking bones travelled up her arm, making her elbow stiff also. Stacy gasped with each suck from Kevin’s muscular mare lips, shivers of ecstasy running up her torso and down her arms causing them to crack even more. Stacy then felt tightness in her hands, as if her middle finger was being pulled by somebody out of her joint. Her hands began to lengthen outwards, bone shifting and leaving the rest of the smaller bones next to what was her wrist. She felt heat rushing through her flesh, concentrating its power on her long hands and wrists. Stacy understood what was happening, her hands were becoming her lower front legs, her lower arm changing into the upper leg, and her wrist; the joint. "Ohhh yes....those lips are so nice....sooo niiieeeigghhh...nice" Stacy squealed, finding it harder and harder to hold back her whinnies of pleasure that corrupted her normal voice. Her hands were growing longer by the minute, now at least the same length as her already longer lower arms. She Brady noticed her elbows sinking back inside her chest, mass of bone and flesh being moved from her upper arm down to her long hands, turning them into her new horse forelegs. Stacy bent her forward bending legs, rubbing the sides over Kevin’s face. Her fingers that tipped the end of a stumpy foreleg began to recede back inside her lower foreleg. Her middle finger bulled up with flesh, growing thicker and wider, pushing her other shrinking fingers aside. Stacy smiled happily as she watched her fingernails grow larger, more keratin pushing through her thick finger, now nearly the same thickness as her foreleg. She has seen it happen to his horse husband and wondered what it would be like to have hooves. She certainly loved the sensation of her expanding fingernails which thickened in width and deepness, folding round her fat digit which now resembled the end of a horse’s leg. Both her digits moved back and forth, she moved them as she would her fingers, but extra muscle and thicker ligaments made It feel like the was bending an ankle on the end of her hands. Her hooves began to feel heavy, and she let her forelegs flop forward, her hooves had finally finished curving round her digit, the skin folded over the top. She was left with a perfectly formed pair of front horse legs attached to her Human torso, her elbows sticking just below her shoulder blade. She rubbed her hairless horse legs over Kevin’s fur and mane, loving the feeling of his soft silky pelt. "Ohhh, my hooves, they feel so good, I want fur my sexy mare, make me your stallion!!" screamed Stacy, snorting and grunting as Kevin sucked her off. He was lost in the sensations of his mare body, he loved the taste if his wife's stallion member, and closed his large eyes and focussed on just the feelings. As soon as Stacy wanted a pelt like the mare pleasuring her, a strange warming prickling sensation ran across her groin and chest. It was like pins and needles; very precise but by no means painful; it felt more like a tickling than a prickling. Stacy felt her shear warm up and although she couldn't see or feel it, she knew that her short horse fur was growing the sensations moved up from her crotch up her belly and toward her large breasts. Stacy felt an involuntary rush of air into her lungs and her chest cavity and ribcage began to expand slowly. She could feel her ribs pushing and thickening, rubbing along the inside of her skin which felt like rippling waves inside her. As her chest and upper body expanded with bone and muscle, her breasts began to stretch out; slowly the mass of her sumptuous was drained away into muscle. "Ohhhhhhh...my tits! Oh god they feel so nni...Neigh!!!" whinnied Stacy as her breasts deflated, milk began to dribble out of them, signalling the last of her femininity which dribbled over Kevin’s head and ears, his own equine udders swollen and desperate for attention. Kevin snorted he began to feel dribbled of stallion precum dribble down his throat, Stacy’s massive tennis sized black balls churning up and down. The tickling fur spread up her back and around her much larger chest. She gasped when it started to move down her forelegs, spreading over the soft skin and making her more animal. She loved the feeling of being a horse; it felt amazing to have such strength and power, to have hooves instead of hands. The rest of the fur grew down her arms, allowing Stacy to see her colour for the first time, and was shocked at the magnificent black coloration. Her pelt was a stunning shiny black with flickers of orangey brown underneath depending on how the light of the defending sun caught it. Stacy was displeased with the rate of progress and wanted her face to change, she wanted lips and a nose like Kevin’s, and she wanted to mount him like her mare. "Oh Kevin....I want you properly, I want to fuck your sexy cunt" groaned Stacy in an equine tone, Kevin’s ears pricking up and listening to his wife's words. Slowly he pulled his mouth upwards, this Tongue running along the length of his wife's shaft until her mushroom shaped head popped out through his teeth and out from his lips. Stacy whinnied loudly as she felt her stiff shaft slide out from Kevin’s long mouth, and he grunted and snorted in response. Up until this point Stacy had rested her larger body on top of Kevin using her hooves, but now she had to move around behind him. Kevin arched his head down and allowed Stacy to plunge her hooves into the dirt, for the first time Stacy walked on hooves, and it was certainly nothing like she expected. If she were to walk on all fours as a human, her backside would have been in the air, but her head and chest were the ones erected upwards. At this point she looked very strange, her backside and chest were very large, a little bigger than the horse next to her, her arms were a pair of long horse legs, while her rear legs were still human. Her belly and spine had elongated and it gave her a quadrupedal stance, but with shorter human legs and feet. Her face and head was perched on top a rather thick and log neck, but not horse length, more donkey length at this point. Walking on four legs proved difficult and Stacy understood how it would be more comfortable to stand on digitgrade legs with her front bending forelegs, but she knew that it wouldn't be long until she was like her lover, a dirty lust filled animal. She loved how her cock felt dragging against the dirt and grass, making her nicker and snort slightly at the feeling. She yearned for her back feet to become hooves, she felt uncomfortable on her human feet and wanted hooves instead. It seemed her transformation would change her as it saw fit, not waiting or granting her any wishes. She continued to stumble over around to Kevin’s rear, his tail flicking from side to side. Her nose picked up his scent, the smell of his rip dripping mare cunt and its throbbing pulsating clit was a sure fire indication that he was in heat. Several nods from Kevin’s head, bouncing his neck up and down and folding his ears down to the side showed he was submitting. Even though unable to speak he was doing his best to communicate through body language; and Stacy partially understood his wants. As per their plan, Stacy used all her might to pull her forelegs up over his backside, desperately trying to angle her cock inside her husband’s mare cunt, but to little success. Then the warmth that had focussed around her chest and forelegs moved down to her rear human legs and backside. Stacy panted as she felt more cracking in her feet, this time much louder and strangely pleasing; as if the cracking of her bones was signalling something wonderful. And it was; her glorious transformation into a graceful beast was at hand, and she nickered as her feet began to lengthen upwards. Stacy felt herself grow upwards, gaining height and dominance over her mare Kevin, who was willingly submitting himself to her. As she grew in height her cock started to run underneath his legs, eventually touching his swollen crotchboobs. Kevin whinnied loudly in pleasure at the feeling of Stacy’s large equine head poking at his teats, moving upwards to his pleasure hole. Stacy eventually felt her way upwards and finally after her feet stretched to the same length as her lower legs, she managed to insert herself inside the waiting horse. “Oh Kevin....your so Tieeeghht!” groaned Stacy, her words slowly changing to horse like nickers and whinnies, making her accept her form even more. More and more of her cock disappeared into his warm silky muscular cunt; squelching noises accompanied the insertion as his sickly sticky female precum lubricated its passage. As her feet finished lengthening a heat surged down her legs, it felt like she had just spent 5 hours running, muscular warmth pulsating inside her. Muscle and skin stetted and grew her lower and upper hind legs began to thicken in diameter as more muscle grew. Her upper human knees were next to shift, this time moving closer up toward her large flanks. Stacy gasped as her penis and testicles began to rearrange, her buttocks puffing up with mass and spreading outwards as her hips took on new stranger forms. She was essentially now standing on her tip toes, her lower leg and food hand lengthened out and she now stood nearly at a 180 degree angle, her spine nearly straight. The last of her buttocks flesh reshaped to that of a fully grown male horse, her toes beginning to change next. Yes....give hooves, I want it, I want to be a horse" groaned Stacy in ecstasy, her mind now accepting of her new body, and enjoying the feelings it brought. Her large stallion cock sunk deeper into Kevin’s quivering mare lips, flicking his ears in pleasure, flicking his tail slightly. Stacy’s toes began to feel stiff, just like her hands before she knew that her hooves were growing through, a smile pulled across her lips as she lost sensation in all but one of her toes. The other toes shrivelled away back into her foot, leaving nothing behind of their existence. Her larger thicker toes she leaned on started to inflate with flesh, the bone widening and becoming longer; granting her height. Her nails began to grow next, keratin and bone pushed out more nail from her skin, thickening and growing larger. The sensation of the change was almost familiar to her now, as if she had experienced it a hundred times before. She gained the last of her height which gave her full access to Kevin’s vagina and womb, utilising her new digitgrade legs and pushing up on her expanding hooves to screw his lover in a better position. "Ohhh that feels so good baby" groaned Stacy in a raspy horse tone, her cock driving deep inside Kevin’s body. She was now about the same size as an adult stallion, larger than Kevin and slightly more muscular. Their plan was going perfectly, and soon Kevin would have to play the larger role in their schemes. Kevin whinnied loudly in pleasure at the sensation of Stacy cock driving deep inside him, Stacy heard his whinnied of love and let out a long "neigh" to make him feel appreciated. The last of the nail pushed out from Stacy’s digit and curved round, giving her a fully functional pair of horse hoofs. The fur that was slowly growing around her buttocks gained her full attention and it began to spread around her ass cheeks. She giggled as it moved down between her buttocks and tickled around her matt black anus, spreading down her hindquarters and down her long sexy stallion legs. Tickling the skin, the small black hairs grew outwards from her skin, covering her human skin and washing away her primate roots to make way for her equine one. As her fur grew down to her lower leg that was once her foot, she felt a strange sensation at the base of her spine. If felt like moving inside her, something hard pushing upwards against the skin. As a small nub formed above her buttchecks; which quickly grew in length, she realised now that her tail was growing just as Kevin’s had before. "Oh yes....I want a tail, a beautiful silky horse tail....ahhhhh!" Stacy gasped as she felt new Neurons in her tail connect to pre-existing synapses and sending signals to her brain. She could feel every inch of her expanding tail, she could feel the cold of the darkening day wash against its skin, she could feel the vertebrae cracking and shifting within. It felt like having a long thin finger jutting out of her backside, it was hard to describe what having a tail felt like. But she knew what it did feel like.....wonderful; it felt like absolute heaven. Part of her found the fact that she derived so much pleasure from just another part of her anatomy, but as it reached full length she realised it was much more than that. It was a signal, a sign that she wasn't s vicious and dangerous human who was bent on destruction, she was an animal, a peaceful beautiful beast that delighted in the simplest of pleasures. She wagged her short fleshy tail from side to side happily, then feeling prickling sensations around the skin and surrounding area. It was only the she felt the warmth grow stronger and stronger, the feeling of rough horsehair against her skin confirmed her tail was now that of a horse. She could no linger feel the cold on her body, as both her body and tail was covered in a thick magnificent pelt of horse fur and hair. "Ahhh Kevin, it feels so goood, why does it feel so niceee....neiiighhh!" whinnied Stacy loudly as she felt a rush of orgasmic pleasure grow in her loins, experiencing her first male climax. Kevin closed his large eyes in ecstasy, her thick stallion shaft widening her until her muscular wet lips were open and easily took the rest of her cock. Kevin could feel her large stallion balls swinging and hitting his back legs with each deep thrust, every time Stacy pounded all the way in her sheath fur tickled his mare cunt lips. Then finally cane the part Stacy was looking forward to, the part she wanted to become the most; her face. It started with involuntary twitches in her facial muscles, which slowly grew to her lips and nose becoming warm and sensitive. She could feel the wind running over them as she felt them move away from her face, her nose and skull cracking and crunching painlessly. She groaned loudly as her lips expanded and her nostrils widened outwards, Stacy gasped in pleasure; trying to savour the feeling she gained from the change. "Armmmpphh, Ohhh Kevin, I loove you so much....nnnnyaaaa, nyiehh, NEIGH!!!!!!!!!!!" Stacy shinned loudly, letting out her last human words as a horse. Her neck had expanded slightly longer, stretching her vocal cords out to a length and shape where human noises were now impossible. Stacy grunted and whinnied, trying to make human sounds, tying to speak but only able to make horse Nickers and snorts. She felt so strong, so powerful as a stallion; dominating over Kevin who had willingly submitted his sexy mare body to her whims. Her face continued to push out, her molars still being left at the back of her mouth while her canines and incisors moved with her lips and nose. She felt her tongue expand with her face, pushing out from the floor of her mouth as growing abnormally long. She gritted her molars together which began to reshape, flattening out and becoming much thicker. Her front teeth did the same, flattening into slabs which were more effective at eating grass and hay. Her hind hooves proved very useful and she was able to arch her head down to Kevin’s head, licking and nibbling his ears in a kinky attempt to turn Kevin on even more. But Kevin was too lost in pleasure to notice his stallion lover licking his long furry mare ears. As Stacy licked and nibbled Kevin’s ears, her own earlobes began to feel stiff and hot. She wondered what it would be like to have ears like a horse, but before she could think her lobes began to push up her skin. And through her hair. She felt the tips grow longer and longer, while the bottom of the ear merged with the skin below as both ears peaked at the top of her head. Stacy whinnied gently as her ears moved for the first time, muscles underneath the skin twitching and activating for the first time, allowing her to swivel and fold her ears in nearly any direction. It felt amazing to have moveable ears, everything was very loud but she could sense the direction of sound. The tickling moved around and up her thick neck until it reached her Jaw line. The same prickling sensations that had struck her silky horse tail earlier began to focus on her neck, the entire top length ripe with tingling. Slowly but surly, course black horsehair like The type that adorned her tail; grew down her neck giving hr a long mane. Her pre-existing hair simply grew slightly longer and changed texture from soft to coarse, giving her a very ragged and masculine look. She realised she wasn’t a she anymore, she hadn’t been for some time; but like Kevin it was important she remembered she was still a human female, even though in a male Stallions body. As a scientist she understood why G.R.A.F.T had the effects it did, which is why they had modified it and tested it out. Her thoughts of their plan died away as the final changes took hold, her orgasm grew until ready to explode. She wanted to cum so bad, wanted to feel the horse seed rush into Kevin’s mare womb. Her face now about the same length as a normal horse began to widen out, stretching her skull apart. Stacy groaned as her vision changed, her eyes enlarging and moving to the side of her head, loosing depth perception. A few more thrusts was all it took to complete herself, a powerful equine orgasm pumping through her body, a pulsating pleasure in her loins which followed with whinnies and snorts of pleasure through Stacy’s new stallion mouth and nostrils. Her whole skull cracked into place as her eyes turned from a deep blue to a dark brown, her pupils turning to rod like holes and allowing for a wider view as if looking landscape. Stacy let out a long "Neigh" along with Kevin’s mare cunt quivering and leaking as his clit was on fire with his own female pleasure. Both of the horses orgasmed, neighing loudly under the red sky, a flash in the horizon indicated the last of sunlight as they mated. Stacy felt the hot stallion seed rush down her member and spurt from the tip into the warm silky folds. Kevin snorted as be felt his womb filling up with her lovers male horse cum, knowing that this would be an important part in their plans. With a couple more thrusts Stacy managed to empty the rest of her cum Into Kevin, her transformation to a stallion complete. With a grunt and whinny; Stacy pulled her massive horsecock from Kevin’s mare lips. Her shaft now spent began to retreat back into its furry hiding place, dripping cum on the dirt below. Dismounting her lover, Stacy pushed her hooves into the dirt for the first time, and felt the vibrations run through her hooves. She didn’t seem to have much trouble walking, and after a couple of attempts she managed to wander beside her smaller mare husband. She rubbed her neck against his as a sign of compassion and looked at each other from their side facing eyes. It was daunting at first for both of them, both being equines of the opposite sex. After a little licking and rubbing; they both trotted out of the open gate, Stacy trampling her human cloths into the ground. They both clipped down the path towards the barn; where Stacy used her powerful and skilful lips to pull open the barn door where they both wandered inside. Stacy had spent the whole day preparing herself for this moment; and at the side of the barn was a large pile of hay for the both of them to sleep, a small bucket of water beside it. Stacy clopped over toward the hay and slowly eased herself down onto the soft dead grass. Bending her legs correctly to ease herself down was the hardest part, but she eventually managed to lie on her side, the padded hay supporting her weight. Kevin wandered over in front of her and did the same with little effort, more used to being a horse than Kevin. Stacy felt more happy as a horse than a Human, and layed her large neck and head over Kevin’s chest and neck, licking his fur passionately. Kevin and Stacy both began to close their eyes, dozing off into a deep sleep. Kevin dreamt that night of himself running free as in the fields, feeling the wind against his mane, and his foal beside him. The foal which now knowingly had been conceived in his cum filled mare womb, his child to be. ------------------------------------------------------- Stacy fell through time and space, suspended in blackness as she dreamt. She felt partially human, but partially stallion, constantly switching between her two forms. It was like a surreal place where anything could change, but he felt gravity return to her body. Her face felt like it being rubbed by an invisible piece of sandpaper, a feeling which roused her from her slumber. She opened her eyes to see forward facing once more; she tried wiggling her long horse ears but only managed to wiggle human ears slightly. She had a hand over the body of her husband’s large furry belly, and her shortening neck was dragging her cheek across his flanks. She still felt hooves, and looked down to see that her cock was gone, replaced by her old human vagina, albeit still a bit furry with horse fur. She looked at her legs to see her horse hooves, but the fur was moulting rapidly. Brushing her hand across her legs literally swept the fur off, her hooves and feet starting to degrade back to her normal human stance. The nail retreated back into her skin and her once nonexistent toes grew back, it felt like worms writhing through the skin. Stacy’s heart began to beat quite fast as her once Magnificent hooves were becoming flimsy human feet before her eyes, a couple more cracks and clicks reasserted her feet until her legs were once again human. Her hair however was still coarse and felt like horsehair, she reached a hand up to feel the back of her and found her mane running Down to just below her shoulders. Her crotch was also fuzzy, her pubic hairs replaced with horse fur. She rubbed her hands round her buttocks expecting to feel fur; instead she came across something better. She thanked god that her tail hadn’t disappeared as well, it jutted out from her backside and to confirm it's existence Stacy flicked it a couple of times and felt the hay against it. Brilliant, it's gone better than I could have hoped" giggled Stacy, knowing why she had not fully reverted back to human. The timer on the GRAFT serum was designed to restore The organisms original form, but to her delight It leaves behind some traits of The animal in question, the more the timer serum is used, the more equine traits that are left in the human DNA. Stacy rubbed her hands over Kevin’s body; he was still sleeping and was exhausted from yesterday. She would mate him again tonight; she had to make sure that their plans yielded results. She giggled at the thought of what equine traits she would gain next time, but for The moment she was very happy with a mane and tail, it made her feel somehow Divine. She was part human, but also part horse and she most certainly enjoyed being more equine. She picked herself up onto her feet, wobbling slightly and feeling quite dizzy from not standing on four legs. But using her hands she managed to retain her balance and she carefully stepped over Kevin’s legs and onto the cold concrete. She gasped at how cold the floor was and wished for hooves to walk on, but she had to make the best of her flimsy human body, and she wandered over to the barn door. Sliding it open she braced at the bright light that poured in, warmth and energy shone onto Kevin, which caused him to rouse from his dream filled slumber. He pulled his head up to see his wife standing as a human at the door, but also watching her horse tail flick hypnotically. She looked so beautiful with her tail and mane, her smooth skin and shapely form glinting off the sunlight. However he did not feel arousal at her naked form, be knew if be was human he would ravage her immediately, but be cared not for her womanly form; he craved a stallion inside his mare cunt. Brushing the thoughts aside he began to lift himself up, and moved over onto his legs. He had bent them at the joins and rested them against the hay, before pushing his hind legs up and then pushing himself onto his front legs. It took a fair amount of effort, but he stood once again on all fours. Kevin shook his neck from side to side quickly, making his mane twist and move gracefully. After he had finished shaking the hay off himself he spied the bucket of water, and immediately his mouth began to water. Clopping over he licked his lips and nose with his long tongue and took a deep breath before plunging his muzzle into the bucket. It felt so nice to get his nose and lips nice and wet, as well as gulping down the cold water. Suction pulled it through his mouth and down his long gullet into his stomach. Kevin removed his long muzzle from the water and licked his large lips, then turning his head to the side to see if he could spot Stacy. She had disappeared from the barn, and Kevin assumed she had gone to get dressed; she could hardly walk around furless. Kevin decided to walk around the farm and explore a bit, he was after all going to spend the next 11 months as a mare, and it would be important he got his bearings as a horse. Kevin clopped out of the barn door and into the sunlight, the warmth of the sun felt good on his pelt and he began to feel like he was meant to be a mare, it was like he was a horse his whole Life, and only now he can live as one. But he knew it was just the hormones talking and he tried to hold onto their plan they had set out. Kevin decided he was hungry and had a craving for something sweet, even though grass and hay was delicious; he yearned for some fruit and sugar. He knew that he had left a bowl of apples in the kitchen the day before yesterday, and his mouth watered at the thought of crunching down on its juicy skin and sucking up the juices with his lips. His instincts eventually got the better of him, and the prospect of fruit was too good to pass up. He started to clop happily toward the house, not knowing where Stacy had gotten to. He finally reached the back door which lead into the kitchen, and using his nose he pushed the open door aside, revealing the interior. He looked down at the tiled floor, and then at his muddy hooves. He certainly didn’t want to make things more difficult for Stacy, but his mind changed when he saw the bowl of fruit on the table in front of him. Kevin thought that Stacy wouldn’t mind, it was their house after all. He slowly edged his way inside one leg at a time, scraping his hooves on the tile floor and leaning toward the bowl of fruit. Finally he pulled his whole body inside the house, albeit a little trouble with getting his belly through the door. Finally however he managed to get within biting distance of the apple, and sunk his teeth into the flesh of the fruit. His taste buds came alive with the sweet taste of the apple, using his lips and teeth to pick up the whole apple and pull it inside his mouth. Neither the pips nor the core seemed to bother him and he devoured the whole apple with ease. But being a large mare he needed more than just one, and began to feast on the sweet fruits that lay before his thick lips. He lost control of his mouth and began to slurp and crunch the fruit loudly, savouring each bite. Eventually he managed to consume all the apples and unfortunately no more fruit was layed out for him to victimise, resorting to wandering through the hallway to see if Stacy had put anything there. He realised the power of his simple desires such as to eat, and how they affected his mind and body so easily. He understood now why animals and horses did things without thought; if instinct was so powerful to overcome thought and logic in a horse of human intelligence, imagine what it would do to an ordinary horse. He begun to appreciate the power animals had over their behaviour, a respect out of the fact his higher human brain functions had been overcome so easily by simple animalistic instincts. He had a newfound respect for both animals and himself alike, thoughts of what it would be like to become a non-sentient animal and discover the effects for himself. However such desires were beyond him now, the timer in the serum would last a full year before he could return to human. Even though a year as a horse was daunting, he had no desire to return to human form; in fact he would quite happily stay as a mare for several years if he could. But their plans would be in jeopardy if he were to do so, he couldn’t have that, most certainly not to disappoint his wife. As he walked through the hallway his thoughts wandered over to Stacy, how she was being so supportive with his new body, how she was coping with the side effects of G.R.A.F.T Then Kevin’s large heart jumped, and began to beat faster as he saw something he was not expecting. He didn’t see it in front of him from the lack of forward facing eyes, but as he passed to the side of the object he caught a glimpse of something. He caught a glimpse of himself, the object being a tall mirror that he remembered buying in an antique shop back when he worked for Altraton Industries. But it was looking at himself for the first time in the mirror; it gave him a glance of what he truly looked like. He was stunned at his own grace and magnificence; the serum had worked wonders and brought out his genetic code as a horse. His face was long and delicate but well sculpted, his mane was a shiny light brown, and his coat was a darker shade of the same colour. His eyes were a dark brown too, the rod like pupils glinted off the light in the hallway, his neck slender and streamlined. Taking a look at his upper body it was so muscular but somehow feminine and dainty, but still possessing power and strength. It was then he realised that he was a mare, a female horse. He had kept calling himself a he for reasons of fear that he might loose his mind to the animal. But he was under control, and there was no sense to keep denying what he was. He was a mare, beautiful and graceful, powerful and elegant. No longer would Kevin refer to himself as a “he” again, but a “she”, she was a female now, able to bear child and suckle it to strength. And besides its not like Stacy could understand what she was thinking, or even know how she felt. Kevin felt a new found joy flush through her like a wave of pleasure; it was as if she had found herself at last. He knew that he was a human once, a male human whose efforts had yielded in her current form. But that was who she “Was” not who she “is”, and she would be dammed if she wasn’t going to give up living her life as a mare to the full. She wanted to bear a foal and raise it as her own; she wanted to graze and run free in the pasture, enjoying herself without problems or worries of a human nature. She decided she was going to let herself succumb “partially” to her instincts, after all his task was to “experience” what it was like to be an animal, both physically and mentally. His mind then wandered over to their plan they had set out for each other, they were to try out G.R.A.F.T to experience how and why animals behave as they do, to better understand them. Both Kevin and Stacy loved animals, and wanted nothing more than to become them, but obviously at the time it was impossible. However when Altraton industries saw a huge boost in profits, Kevin became suspicious and began to look into it. She remembered looking through police records of missing C.E.O’s that were in direct competition with Altraton, all of them disappeared with animals left in their apartments or homes. After much research and digging deep into company secrets, Kevin found Project C.R.A.F.T, which turned out to be an earlier serum base of the perfected G.R.A.F.T which they had been using to become mares. Before Kevin was made redundant, she stole a tiny vial of G.R.A.F.T from a sealed cryogenic container in the storage labs and smuggled it out of the building. With the funds he received ironically from the company he managed to synthesise more G.R.A.F.T and perfect it, even giving it a timer to the release of human and animal genetic information. “There you are, my god you’ve made a mess” spoke a voice from upstairs, startling Kevin from her daydream and back to reality. She shook her large head from side to side and moved an eye up to her wife, also swivelling an ear to hear the speech better. “Do you want to go out in the yard?” asked Stacy kindly, smiling at the magnificent mare that stood before her. Kevin looked over Stacy’s body and saw she had put some clothes on, a similar looking pair of Daisy dukes which hung loosely round the back to give her room for the silky horsetail that jutted out from her spine. And a nice blouse, her mane looking like shiny black hair, but far longer and more beautiful. She looked so graceful part horse, not human but not horse either, a perfect match in-between. Kevin nodded her head slowly and let out a short nicker, confirming her wants to graze on some lush strands of green. Stacy descended the stairs and walked across to Kevin who was standing and following Stacy with her eyes. She felt a soft hand run across her nose and up to her mane, closing her eyes slightly at how nice her hands felt. The rubbing was followed by a kiss from Stacy, before she walked away from her then opening the front door "Out you go, you know the way to the pasture; I'll get you some food in the meantime" continued Stacy, holding the front door open to allow passage for Kevin. She clopped her hooves forward and out the front door, pulling her belly through the doorframe and then finally out into the sun. He flicked his tail and turned his head to look at Stacy, who was smiling and sniffing his cunt. Even as part horse, Stacy still felt urges to screw Kevin again, and could even smell her mare’s pheromones. Stacy closed the front door and shook her own horse tail from side to side. Kevin still felt hungry and the urge for grass made him canter around the house and toward the pasture. He spotted Stacy out the corner of his eye; exiting the back door and spotting her immediately, smiling as she watches her husband canter along to The paddock eagerly. He finally reached the fenced off field of grass and pulled the gate hook open with his teeth and lips, then trotting inside. Stacy walked into the barn and several rustling sounds were heard from Kevin’s keen ears, the not a moment later she exited, carrying a large sack of horse food. In her pocket was also a long cardboard box along with another similar vial of their serum. Kevin could only imagine what her wife was doing with the serum and was curious as to what was in the box. "Hey sweetie, I got you some food here, and I'm just going to test you....remember." Said Stacy, but after reading the food that was for pregnant mares, she realised that Stacy needed to check if she was pregnant. Stacy opened the box and pulled a long metal probe with a small plastic attachment on the end. "Now Kevin, I need you to take a shit for me, otherwise I can't test you, it won't work with urine." said Stacy, looking at her with embarrassment. Kevin then focussed her attention on her digestive system and twitched her muscular black asshole. Kevin felt rumbling in her larger bowels, and sure enough she felt the passage of faeces from her rectum into the anus. Pressure built up behind her long thick anus which protruded out from her buttocks. With a push and a groan she felt her bowls move and push out the wide excrement from her anus. The shit was compacted with grass and hay, and as a result was quite hard, but still soft on the outside. Kevin’s nostrils flared and smelt her own mare crap, for some reason it smelled amazing, like a bitter muskiness. Her cunt began to throb with arousal as the wide round dump stretched her asshole open, the grass within the faeces tickling and teasing her asshole. More roundish lumps of crap followed, and Kevin groaned as she squeezed it out of her ass. Slightly wetter shit came next, dripping its brown smelly shot over her cunt and down onto the ground. Kevin couldn't help herself and let out a quiet whinny as the liquid shit trickled over her cut lips and down her legs. It smelled amazing and she couldn't help but enjoy the release of the shit from her ass. Finally the rest of her crap fell to the floor; making a "thud" sound as it dropped into a large pile on the floor. "I think you enjoyed that a bit too much Hunny" giggled Stacy, rubbing her husband’s mare ass, getting a little bit of her horseshit on her fingers. Stacy didn't know if her own perversion was or if her crap contained some sort of pheromone that enticed stallions, but as she sniffed the shit; her clit began to swell uncontrollably. It was like she was turned on by the crap that spilled out of her mare’s muscular anus, but Stacy had to control herself. She stifled her arousal and merely bent down to the large pile of faecal matter that Kevin had left on the grass, it smelled heavenly to her nostrils as she pushed the probe inside. The device took a while to work, but eventually a plus symbol was displayed on the side to indicate a successful pregnancy. ”good news Kevin, you’re pregnant” giggled Stacy, looking up to Kevin who had turned her head round to look at her pile of shit. Kevin felt both exhilarated and scared at the situation, she was happy that she was going to give birth to a foal, but scared at what the pregnancy would be like. Stacy wandered over in front of Kevin’s face and rubbed her head gently, massaging Kevin’s mane with her hands. “How about we make love again, to make sure we’ve got enough cum inside you” giggled Stacy, looking into Kevin’s large eyes with a devilish smile. Kevin nodded her head excitedly and rubbed her face against Stacy’s shirt. Kevin knew that she could only make love a certain amount of times before she became heavily pregnant, otherwise she might unknowingly abort the foal if another stallion was around. Horses would often do that if they caught whiff of a stallions pheromones, aborting the child for stronger genetic information. She was sure however as a human in a horse’s body, she could control such urges, but only once or twice, any more would be taking a risk. And even then a horse’s shaft enters into the womb during intercourse, so Stacy would have to be careful as well. All in all this was probably one of their last chances to make love properly, and neither Stacy nor Kevin were going to allow the chance to pass. Stacy pulled out a familiar looking vial from her pocket, containing the same liquid as before. Stacy flicked her silky tail before popping off the cap and downing the same liquid. Slowly she began to undress, taking off the clean cloths and throwing them to the ground. Stacy wasted no time in taking advantage of the time being human, and pulled Kevin’s lips up into a passionate human to horse kiss. Their lips entwined and Stacy enjoyed the feeling of Kevin’s massive mouth massaging her lower face, their tongue licking each other. It was then Stacy felt something, a familiar sensation in her throat and chest, the warmth of the beginning transformation into a stallion. She had already been through the transformation once, and she was about to go through it again. She wondered if the change would take a different course this time, and her curiosities were right. It was not her genitals that changed first, not her legs or arms, but her face. She groaned loudly under their passionate kiss as her face began to crack and pop loudly, her own lips growing larger and large, puffing with flesh and size. Finally her lips became much larger than her lovers, and she realised by this point she had not only grown in size, but also her face had shifted out too. Her nose and mouth moved away in a familiar sensation, feeling the flesh twist and shift gently forward. It was almost like second nature to experience the transformation to her now, as if she had been doing it her whole life. The popping and cracking ensued until her whole face was now the size of a small horse, her nose and mouth a fair distance away from her eyes. Her much more muscular lips curved round to the side of Kevin’s as they shared saliva, her longer tongue pushing deeper in her lover’s muzzle. More crunching and cracking ensued as her neck began to lengthen this time, moving upwards as she knelt down to stay in a position comfortable to Kevin. A slight whinny exited Stacy’s through as her vocal cords once again reshaped to an equine position. The transformation was occurring much faster than before, possibly due to her increased equine genetics which was present in her DNA. But such science thoughts were below her now and she focused primarily on kissing her mare passionately, her own horse lips licking and tenderly kissing one another. Stacy groaned as her ears began to prick up, her mane already grown through and suiting her new head and neck perfectly. Her ears began to reshape and grow longer, moving upwards to the top of her head where they rested. Stacy flicked her horse ears once again, remembering how good it felt to have equine attributes. They finally broke off from their kiss, leaving Stacy with literally the head of a horse, however her body had also bulked up with muscle which gave her a slightly more proportioned look. However she was not remain so for long, as the familiar sensation of her clit throbbing was too much for her to bear. She looked down across her long muzzle, her eyes still forward facing to see her clit and vulva once again expand outwards. She groaned loudly as her clit pushed out into the head of a familiar looking cockhead, the skin moving upwards and merging with her belly. She groaned as the skin folded over her cock as it lunged upwards, teasing the tip of her muzzle. The sickening thought crossed over her mind as to what she wanted to do, and It didn’t take long before she had used her flexible neck and long muzzle to plunge herself down onto her growing cock. She had certainly missed having a cock and enjoyed the sensations it brought having it sucked off. As she sucked a wave of pleasure washed over her as two large testicles plopped out from the slit which closed up, her large horse testicles slamming to the floor below. Pulling her muzzle outwards she let out a loud contented “Neigh!” at the feeling of her balls dropping and her penis growing. Finally her sheath and balls were complete, only her long equine shaft was to change next, growing in length and size, becoming larger. The shape had already formed itself; its wide girthed mushroom shaped head pulsated with precum and dribbled down the shaft. Stacy looked up at Kevin who nickered before turning herself around so her ass was in Stacy’s face. It was then she noticed her plump mare breasts which looked swollen and sensitive, Stacy leaning forward and sniffing them loudly with her large nostrils. It was such a nice smell, the combination of her cunt, sweat that dribbled from her skin, and the bittersweet shit that still lay in a large pile on the grass. Stacy leaned forward and licked the large horse udders, causing Kevin to shinny at the feeling of his crotchboobs being suckled. He could wait until he had a foal suckling at them; she wanted to care for her child that she knew was growing inside her. Stacy used her firm lips to purse around one of the teats and began to suckle gently, a fatty milk shooting from the tips and sending Stacy’s taste buds alive. They spent the rest of the day clopping around the fields and enjoying each others company, Stacy sometimes mounting Kevin again and again, emptying more of her stallion cum into Kevin’s quivering mare womb. After a hard day of sex and grazing they both trotted off out of the field and down the pathway toward the barn. Opening the barn, they both walked inside and nestled down in their sleeping spot, this time Kevin above Stacy, both falling asleep gently. They both dreamed heavily that night; Kevin however was filled with happy thoughts of giving birth and licking his foal clean for the first time. They dreamed and dreamed, until an odd stiffness in Stacy’s froth cause her to stir from her slumber. Again the serum had changed back to at least partially human her in the night, and Stacy smiled with glee when she realised she was more horse than human this time. As she opened her eyes, they rearranged themselves front ways, her face shortening and becoming human once more. She flicker her ears and expected those to change back also, but to both her shock and glee, they did not. Also realising she now possessed hands once more; she moved them upwards and felt the soft furry horse ears that jutted out from her horse like mane and hair. She tested them by swivelling them and realised they were indeed fully functional, but something else was also functional. Stacy looked down and drew her mouth open agape, looking down at her furry crotch. The large tip of a flat head crested cock jutted out from a stallions sheath attached to her crotch and belly. Albeit is was smaller than a stallions cock, but still measuring a good 9-10 inches long, large equine testicles hung down freely from a saggy black skinned scrotum. Both overjoyed and burdened by her new additions she picked herself up and explored her new anatomy, feeling down the long marbled shaft to the furry crotch and balls. Shivers of male pleasure rushed through her as she touched her massive horsecock, realising that she would be having a lot of fun with it during the next year. ----------------------------------------------------- The next year however fun for Stacy, was also very difficult for her too. Because she had such a strange body she would order all the food online and have it delivered, obviously hiding her equine attributed with trousers, hair bands and shirts. The rest of The time she spend on the farm, usually wearing skirts as they would let her horsecock hang freely underneath the frilly flaps so as to diffuse more heat. She would often get licked and nudged by Kevin who seemed to be handling herself very well. Luckily Stacy had several storage items in the other barn where they both kept the hay and food. Alongside many sacks of food and buckets that would be filled with water or milk, there were several planks of wood which appeared mundane at first. However when assembled they would create jumping posts for horse shows, complete with different styles and types. Stacy also had a saddle and reins in the house, something she had bought specifically to use when Kevin had undergone her Transformation. It was always a fantasy of Kevin’s to be ridden like a horse, with a saddle and jump the posts like a racehorse. It was a most peculiar want, but a need that he asked Stacy to full fill when she transformed into the mare she was now. Stacy set up the jumping posts with quite a bit of effort, the wooden beams were heavy and it took her a good half a day to set up the running course. But she finally got a racetrack set up in the pasture, and surprised Kevin by showing her the saddle and reins she had bought for him. Kevin found the saddle to be very comfortable, and not stressful on her back whatsoever. She however loved the reins, and the metal cylinder that went through her mouth felt quite nice to have in. she didn’t bite down on it, but instead it pushed between the gap of her incisors and molars, making it fit rather snugly. The reins that hugged her head felt really nice, like hat that cuddled your face. When Stacy pulled herself up onto Kevin for the first time, it felt like a general pressure on her back, as if somebody was pushing their fist gently into your back. It didn’t feel too bad, Stacy was much lighter than Kevin had expected, and she quite liked the feeling of her wife’s horsecock handing over the side of the reins and wetting the fur on her flanks. But when Kevin ran, oh god it felt amazing to run. He knew horses ran around for recreation but he had no idea it felt so exhilarating. Kevin first started off in a small canter, and then got more and more used to travelling faster on her hooves. Soon enough she was galloping around the large pasture, snorting through her nostrils. Every time Stacy pulled on the reins, either left or right he didn’t feel the slightest need to follow her instructions, but out of respect did so. It was like even though she had free will, out of care and love for her rider, she would do as she pleased. After all she realised that her body was vastly more powerful than Stacy’s smaller fragile frame, and she had a responsibility to take care of her. Eventually after several minutes of running around, Kevin plucked up the courage to jump one of the posts. It took a fair amount of effort to propel herself upwards, most of the jump used her hind legs, and she was surprised at how high she propelled herself. In fact when she landed on her front hooves, she nearly fell over from the shock of the apparent height. After some whinnying and snorting of excitement, Kevin jumped a few more, then ran some more, until she was running and jumping like a proper racehorse. She loved the feel of the wind through her mane, the snorting of her nose and the rider on her back. It felt truly amazing to be carrying what would appear to be a large creature, and still able to jump and run with relative ease. Stacy also enjoyed riding Kevin; it brought her back to her childhood when she looked after riding horses and often rode them herself. It felt nice to give Kevin what he wanted, but after a long day of riding through the pasture, Stacy needed to let Kevin get some food and rest. Several days after that Stacy rode him again, and then a third time after that, before his foal became visibly large in her womb. After which running and especially jumping were treats that would endanger the health of her foal, understandably Kevin was happy to stop as she was more concerned about the health of her baby horse. After the first 3 months as a mare, Kevin didn't really regard herself as human anymore; she liked her new body and sex much more than before and wanted to stay as a horse; even though she had no choice. Being pregnant was much harder than she had initially thought; often the extra weight in her belly would feel like having a big weight strapped to you. And since Kevin had bilked out sideways she was forced to sleep on her hooves. The first time she slept while standing she had a dream that she was falling through air as if there was no ground, only to suddenly his ground and wake back up again. She found the best part of being a horse was most defiantly the mouth, not as she would think the hooves or the tail, bit the simple task of eating was almost pleasurable. Having such precise and measurable control over ones lips, ass well as having the flexibility in your neck to milk your own teats, was certainly a plus. And her mouth proved more than just useful when eating, because it was so sensitive she could feel precisely where an object was, both through her skin and by the hairs that sprouted out of her chin and lips. It was almost like she could see through her mouth, sense what an object looked like by rubbing her mouth across it and licking it. Doors and barns were easy enough to gain access to; she had plenty of time to practice with her body. She considered and thought about becoming a mare permanently after they had completed their other tests, but first she had to give birth and raise her foal. She wondered about how it would feel for a horse, she knew that human births were painful, but she never thought about mares. She had seen mares giving birth before, and she heard them wheeze and sweat as well as grunt, so she imagined it was very painful. She was most certainly not looking forward to giving birth, but most of all getting the little run out of her. More conflicting thoughts that flooded her head were the most annoying and scary, how easily her emotions changed. One day during the second month, Stacy had tried to please her by using her hands to gently massage her crotch boobs, but Stacy suddenly had a wave of anger and nearly kicked Stacy over. She felt terrible the day after and tried to make up for it by continual rubbing and licking her cock which only seemed to make Stacy even more disappointed. Eventually she managed to understand the hormones that were surging through her body due to her equine form and pregnancy. Kevin often found it difficult to control her horse emotions which would often make her do things she would be repulsed as a human. Many times she had the urge to sniff her own faecal matter; somehow she enjoyed the strange smell the lumps gave off. But her foal was the most important and once she reached about 7 months pregnant, she found her belly much larger than it was before, the extra weight straining on her legs. Any normal human wouldn’t realise that Kevin was pregnant, nor would they realise she was once a human. But aside from the extra weight and fat belly, she rather enjoyed being a pregnant mare. It felt quite nice to feel the foals kicks and movements inside her, as if it was already born. The constant moves and turns would sometimes move to her vaginal passage where it stimulated the sensitive nerve endings. Sometimes Stacy would see Kevin whinnying loudly for no particular reason, but it was in fact the foal moving within her womb. Stacy tried her best over the coming months; they tried not to speak much as Stacy wanted to keep the illusion that she was just a human. Even though at least partially human, Stacy found her equine traits to be both a blessing and a curse. Sometimes when her cock hung really low, it would grind against the gravel or mud only serving to turn her on, which would nearly always lead in either masturbation or asking Kevin to relieve her. Kevin rather enjoyed Stacy with a horsecock, it was a strange thing for a human to have, and it looked rather odd on her feminine form. But even the sight of the horsecock attached to Stacy's mostly human body was still a turn on for Kevin, even if she was technically still human. Stacy however regretted that she didn’t get to spend more time as a stallion, they made a rule that they would only mate as horses once a month, but it seemed that Stacy had reached the maximum amount of physical traits her body would allow. However every time Stacy reverted back from stallion to human, she would bring back mental traits that were only present as a horse. For example as a horse she found herself much more obsessed with sex, more so than before. She would have to relieve herself at least twice or three times on a good day, on worse days when she was near Kevin, at least 5 masturbation sessions were required. But once a month she took the serum again and reverted back to a stallion, the change becoming faster each time she transformed. Kevin found sex while pregnant to be a certainly interesting experience, but something he wouldn’t enjoy all the time. The problem with sex as a pregnant mare was that Stacy’s stallion cock was far too long as a horse, more times than many the tip of her cock would touch the Amniotic sack containing her foal. At these points Kevin would whinny very loudly and pull out violently, ending the mating session prematurely. Stacy had this on at least 2 occasions and tried to restrain her instincts during the mating, which proved to be very difficult. Because Stacy’s cock was slightly smaller and more manageable when she was partially human, Kevin would often pull her tail aside and expose her black vulva. The problem they both encountered with human to horse intercourse was the height difference, and Stacy was unable usually to reach Kevin’s cunt. Kevin would rectify this by sitting on his legs, and allowing Stacy easy access, the mating sessions were often better and more pleasurable for Stacy due to her increased intellect as a human. As a horse Kevin found it increasingly difficult to control and manage her pain when she fell into the final stages of her pregnancy, at a healthy 11 months pregnant she felt the contractions growing stronger and stronger and stronger. --------------------------------------------------------- “Kevin? Are you ok, oh my god baby your water's broken” screamed Stacy as she saw Kevin grunting as placental fluids dribble and gush out from her black cunt. Kevin felt strange pulsating aching pains, contractions which caused him to grunt. The pain was manageable, but it was still quite uncomfortable, it was like the same pain as a headache, but more spread out. Both Stacy and Kevin were in the barn at the time; Stacy had been brushing him down when she heard the gushing of water. The concrete floor was wet with strange slimy fluids, small amounts of blood mixed in with it. Kevin could feel the foal moving within her, hard poking and scraping feelings were moving along the left side of her womb and toward her cervix. The sensation stopped and a sharp pain let through her as her cervix expanded open, allowing the rest of the fluids to gush out onto the floor. “Ohhh ok, this is unexpected, ok Kevin over here on the hay” continued Stacy, throwing away the brush and holding her mare husband tight as she lay down on the hay gently. She allowed herself to relax on the bedding and focus primarily on her contractions; Kevin tried to remember the research she had done on human pregnancies and how to cope with them. But this felt nothing like human pregnancies and she merely had to cope on her own, but Kevin somehow knew what to do, she knew how to give birth. She couldn’t understand how she knew it, but it might have been the pre-programmed instinct that all horses had. The first surge of pain rushed into her pelvis, the pain wasn’t too bad but it still caused her to nicker. She could feel the foal moving through her passageway, first the tips of its hooves pushed nearer her extremely wet black horse cunt. More fluids spilled out and the embryonic sack flopped out from her folds like a used condom, more strange good filling that too. Kevin managed each wave like a pulse, she pushed when the pain peaked and her efforts somehow relieved the pressure. After the second and third contractions, she felt the hard tips of the foals hooves poke out her vagina, and the baby horses legs were covered in a whitish moist film. “Keep going baby, your doing so well” replied Stacy, disappointed that she didn’t have time to change into a stallion to welcome her foal into the world as well. However Stacy didn’t feel the same attachment that Kevin felt to her child, it was almost as if that the male horse didn’t care too much for the foal, which was the mare’s job. Kevin whinnied once more; she felt her vaginal walls stretch out as the tip of the foal’s nose poked out the tip of her vulva, its legs already resting on the hay. Stacy rubbed her belly and could feel the small horse move through her womb, Kevin beginning to feel slightly calmer now. Even though the pain was there, it wasn’t as bad as she though it would be. Maybe it was due to the species difference, or maybe G.R.A.F.T was reducing the pain, but as more and more contractions occurred it began to feel quite good. The stretching of her cunt was quite a nice sensation; giving birth didn’t feel as bad as it should, but even though the pain was there, it was a good pain. Kevin related it back to when he used to play with his anus, back when he was human. Even though sometimes it hurts, it still feels good. Another powerful contraction pushed the foals head out some more, only the body left to go. Kevin groaned as her lips spread wider apart, a little fluid gushing out from the sides which seemed to help ease the passage. Things became easier once her cunt was stretched out; it was almost elastic and able to take quite a bit of strain. The release of endorphins into Kevin's blood stream caused him to feel both sexual pleasure and overall euphoric pleasure, the sensation of giving birth felt very similar to taking a crap. But it wasn’t just the foal that was to exit her body, as she pushed the foal further outwards, small lumps of shit fell from her asshole and onto the hay, the smell only turning on Stacy who sat in the hay and supported her mare. She began to move round behind Kevin to inspect the foal, she was shocked to see its head clear of her vulva and its body was nearly through. “Your so close hunny, keep at it, it’s almost there!” shouted Stacy, grabbing the foal’s legs with her hands and giving it a gentle tug. Stacy whinnied loudly at the feeling and with a powerful squeeze she felt the foal “Pop” out of her womb, its legs scraping against her clit and folds, the stimulation driving her over the edge. The pain subsided and the pleasure rocked as she orgasmed, squirting fluids from the gaping worn cunt, which quickly began to close in on itself, a feeling most strange to Kevin. “Oh Kevin look, our foal looks so wonderful” giggled Stacy, running her hands over the small foal which lay motionless on the floor. Kevin laid her neck and head in the hay for a while, panting and gasping for air, snorting through her nostrils. She finally gathered the strength to pull her head and upper body upwards to look behind her, using her forelegs for support. A huge release of Oxytocin surged through her blood when she first laid eyes on her child, but her heart rate increased when she realised it wasn’t moving. It simply lay there covered in the thin white film. She then saw its umbilical cord was still attached, and using her flat teeth and strong jaws, she cut the cord loose, breathing the first breaths of life into the small foal. Stacy stood up and walked over to the barn door and grabbed a towel from the handle, rushing back over and wiping of the whitish film that covered it. The foal had a lovely jet black coat of fur and a firm set of legs, it was then Stacy realised it had a sheath, and now knew their child to be a male. “Oh Kevin, It's a boy, you've got a wonderful little stallion” spoke Stacy, rubbing the foal clean of his thin film coating. Stacy leaned over and licked the foal's head gently, then moving down his neck to his back, cleaning off the blood and fluids. She was so proud of herself that she had seen it through to the end, and even given birth to a wonderful child. However another strange contraction occurred in Kevin, but not painful this time, only movement. With a resounding “squelch” sound, Kevin's placenta pushed out from his vulva and onto the hay below, leaving her once again; a free mare. Kevin found the strength to stand up once more on his hooves, his vagina and vulva closed up again, albeit a bit weaker than before. Standing on her legs Kevin found walking a little wobbly after birth, but after turning round to face her foal, she became once again used to it. She wandered over to the small foal that sat gently in the hay, looking up at its mother and running its head over her nose. Kevin closer her eyes gently and felt the foal running his face across hers, a true bond forming between them as a mother and son. After a good 10 minutes of bonding Kevin decided that it was time for her foal to get up from the hay and take his first few steps, a task which initially proved difficult just to get him standing. Stacy watched them both and walked backwards to observe it from a scientific standpoint, the fact that Kevin knew exactly what to do, even though he had never done it before. Stacy smiled as she watched her husband raise up her foal on its four legs, finally standing upright. This was a task that would take a human baby months to accomplish, but yet this small newborn managed it in no more than 15 minutes. After the foal stood proud he began to take his first steps, Kevin eagerly watched closely as he put one leg in front of the other. “Good boy, you're doing very well” said Stacy as if talking to a human child, realising it to be her child as well, but still not possessing the same maternal attachment to him as Kevin did. The Foal took sight of Stacy and quickly stumbled over to her, to which she kneeled down and rubbed the foals head gently. The little baby horse rubbed his face against Stacy’s chest, a sign of bonding and friendship. “He’s lovely, I wonder what we should call him” spoke Stacy, running her hands through his short mane and pondering on titles for their first child. Kevin already had a hundred names ready in his head; the months of pregnancy had him wondering on what to call his child. “How about Jakob, it’s short and sweet” continued Stacy, looking up at her much larger mate. Kevin nodded his head up and down, loving the title that her wife had picked for him. “Yes, Jakob, that’s a nice name isn’t it eh...” she said rhetorically talking to her foal, who was quite happy nuzzling her strange father. ---------------------------------------------------------- There was one more month, only one month left to train up Jakob before both Stacy and Kevin were to revert back to human completely. Stacy had pre-prepared all their serums with a 12 month timer, after that time Kevin would revert back to a human, Stacy would loose all her equine traits and they would be left with Jakob. It was certainly a strange thought and many days of sore breastfeeding kept Kevin awake some nights, but he wanted Jakob strong and prepared for when he changed back, he didn’t want him too worried; he wanted him strong and smart enough to understand what was going on. And on some level Jakob almost grasped the concepts that Stacy tried to teach him, not to urinate on the floor and to use a single place to drop his faecal matter. Stacy began to think that Jakob was more than just a normal horse, but perhaps one of a much much higher intellect, maybe even able to understand language. But the time for both learning and studying came to an end, and the date came when Kevin was the change back to a human, Stacy had warned him about it a day before and he had prepared himself thoroughly. Stacy walked into the barn early in the morning to see Jakob and Kevin sleeping together, the last time she would be able to see her as a mare, she didn’t want to rob him of a mother, but she had no choice. After all she knew it had to be done, he didn’t want to loose his mind completely after all, and loose Stacy too. As Kevin Rose from the hay bed and clipped over to Stacy at the door, Jakob was awakened by the sound her hooves clopping on the concrete. With a fair amount of effort the little foal pulled himself up onto his legs and slowly walked beside his mother, running his head across her flanks. "Jakob, we need to show you something, you might not like it" said Stacy as she walked over to Jakob, slowly edging him off further away from Kevin. She tried her best to keep the foal away from Kevin, but Jakob seemed to be intent on standing next to his mother. But soon he would no longer his mother, he would change back to a human, and Kevin did not know how Jakob would react. How would you react if your own mother not only changed gender, but also species in front of you and ask for acceptance at your origins. Only somebody very deranged, or very understanding would accept it, and Stacy worried Jakob was going to react violently. But before Stacy could explain the sun Rose up in the sky and the time hit exactly one year since Kevin’s first transformation into a mare, and caused the GRAFT that was still dormant within his bloodstream to activate. Kevin felt the warmth growing in his blood, quickly spreading to all parts of his body. He blinked quickly and tried to restrain his tears, and simply Nickered to call Jakob over to her. Her foal obliged and happily clopped over toward his mother, running his face across her nose. Kevin savoured each sensation of his foal, trying to imprint it into his memory forever. It was then he began to feel his front feet become hot, as if his blood was on fire, and pouring into his hooves. With a groan; Kevin felt the hooves he had been walking on for a year, move back inside his digit. Even though he knew that he was becoming one again human, he felt strangely happy that he would be able to handle his child with hands for the first time. Her attention was drawn away from his foal down to his hooves, now shrinking down quite rapidly. Kevin felt the flesh beginning to press against the floor instead of his nail, and grunted at how painful it was. After all he did weigh a lot, and putting pressure on bone with only a couple of layers of flesh, proved to be very uncomfortable. Kevin decided to kneel down and lean on his side, less pressure would be distributed to his legs and hopefully his transformation back wouldn't be too painful. As soon as the pressure was relieved in his hooves, they recessed back inside his digit, now looking more like mangled deformed thumb on the end of his leg. Kevin found himself panting and gasping for air, the extra heat his body producing was decreasing his mass and fuelling his change. "It’s ok Kevin, everything's going to be fine" said Stacy, running her hands over Kevin’s pelt as his legs cracked outwards from his torso, his lower horse leg shortening and cracking. It was only after Stacy removed her hand from his coat that she had a handful of his fur stuck to her skin, leaving a clear patch of human skin beneath. It seemed that Kevin was shedding his now useless coat, the fur simply disconnecting from his skin. Kevin grunted as his forelegs took shape, while his whole body started to shrink, his legs and head along with it. The process was subtle and somehow not noticeable, at least not under the sounds of cracking bone and reshaping flesh. His back legs began to move in the same way, his hoof shortening into a nail upon a thick misshapen digit. Kevin began to wiggle the digit like a toe, doing both on each leg until his lower horse leg was no longer than a foot. Tiny nubs formed around the ends and cracked outwards, recently dormant bone awakens again as his human toes grew back. His Large digit that had once been his hoof shrunk down, transferring mass into his other human toes and allowed them to grow. For a moment Kevin forgot how to wiggle his toes, he had spent a year on just hooves he couldn't remember how his toes moved. But as the muscles twitched and one again came alive, allowing him to move them once more. Jakob watched her mothers hooves crack and reshape into feet, unknown as to how to react to this strange series of events. Kevin looked up at Jakob and nodded his head, almost telling him that this was meant to happen, that it was ok to be scared. So much could be said through body language with horses, and he found himself being able to "talk" in very simple ways to his foal. Most certainly Stacy was calmed by how well Jakob was taking his mothers transformation, her own change beginning to take fold. Kevin groaned when he felt his tail hairs fall out into the floor as his tail wriggles and cracked back into his spine, leaving nothing but a patch of human skin. He felt sad that he had lost one of his favourite appendages, a tail proved most useful as a horse. More and more fur fell out while Stacy’s coarse horse hair began to fall from her own shrinking tail as well; she wiggled her tail before it disappeared completely. Kevin’s fur began to fall out in clumps leaving patches of disconnected fur over her body, her legs and hips more human than horse now. Her belly shrank down and the muscle pushed down to form a familiar six pack. His hands and finger cracked and clicked into place alongside his feet, the upper arms descending from his upper torso and cracking out sideways. The movement expanded the width of his chest as his pectorals formed. He looked down to his black crotchboobs shrink and dissipate into his groin, reappearing as human nipples on his chest. He finally gripped the hay with his hands and ran his hands across his neck and head, which were still very much horse in nature. Cracking bone reshaped his face, the nose and lips he loved so much began to climb up his face and shrink down. He felt his eyes crack and move, his skull pulling the face in front of him, the irises changing to a deep blue, while the pupils shrunk down a round shape rather than the oval shape of a horse. As his eyes shrunk in size, Stacy’s mane fell out from her neck and back, her longer human hair returning to its sandy blonde colour. "Neighhh nnnnyaaaa ahhhhhh!" Kevin whinnied as his neck shortened down, returning his vocal cords to normal. He spoke for the first time in a year, his face now looking very much human. His nose and lips shrank down to normal size, his face becoming flat as his nostrils shifted underneath the cartilage of his nose, forming his human sniffer once more. His forehead flattened around his mane which prompted his ears to move down, the tips shortening and becoming rounder, the fur falling out from those too. Kevin rubbed his face and pulled off the remaining disconnected horse fur, revealing his face once and for all. His long hair stayed the same brown, but stayed the same length, simply changing from the course horse to human hair. He gasped as his ears moved downwards the skin around the top lobes merging with his head, making them look human once more. His vocal cords finally shifted back to their original position as his neck shortened, fur falling out in lumps once it returned to normal. Finally the part he was both dreading and hoping for, his genitals were still that of a mare, his thick black cunt dribbling fluids. He barely got anytime time to say goodbye to them, the clit expanding rapidly outwards and ups the muscular folds thinned outwards and became far daintier, the wet skin folding upwards toward his expanding cock. Testosterone one again flooded his bloodstream, his ovaries now testicles and moving through his womb, sealing it shut. His clit pushed out further the skin around his lips were merging with his massive clit, creating his cock again. He groaned as his dock pushed upwards and melded with his crotch, shuddering when his testicles plopped out of his slit and hanging loosely by the skin that merged underneath and sealed his vagina for good. His sexual organs moved forward and upwards shifting themselves to their correct place, and finally with a grunt the last of the horse hair fell from his body and he was once again human. Stacy however was still changing back; her massive equine cock was shrinking down to become puny compared to before. "Oh....god, I’m back, after all this time" gasped Kevin, running his hands over the naked skin, shocked to feel human again. He looked Over to Stacy who had her head arched back, her cock pulling back inside her sheath where it began to shorten down her shaft. As her shaft decreased in size, it took on a much rounder shape, loosing its mottled marble coloration and turning a reddish pink. The fur around her sheath simply fell out and her sheath pulled down underneath her crotch, pulling her balls back. With a sucking "sclorp" sound, Stacy's stallion testicles turned inside out and sucked back inside her body, creating an entrance where her sheath pulled her tiny cock down which now was only an inch in length. As her cocked pulled further and further Down to her dripping slit, it nestled next to her folding sheath, which merged into the skin to form the lips of her vulva, her cocktip now her clit. "Ahhh, oh that's better, no more weight now" gasped Stacy, now somehow pleased she didn't have to manage her constant horniness. The two humans sat in the hay and gasped for breath, Kevin fruit to get his bearings. He felt as if he had jumped into an alien body, his mare form was so familiar to him, his Human body felt weird. "J...Jakob? Don't be mad, I love you still" said Kevin, looking at his foal be looked at him with confusion. Kevin was so afraid he would reject him, so afraid he wouldn’t know his mother. Jakob trotted over to Kevin and nuzzles into him, sitting down at the base of his body, and allowed Jakob ago stroke his fur. "My god...I gave birth to him...I can hardly believe it, we did it Hun!" continued Kevin loudly over to Stacy, who smiled with joy. It had taken them a year to successfully change Kevin to a mare, successfully impregnate and give birth to a foal, then successfully change back. Kevin retained his memories; he felt human once more and didn't seem to want to become a mare again. It was almost like the haze of hormones had altered his mind, but he was human again, and he had a healthy stallion to show for his efforts. Kevin continued to stroke and cuddle his foal for a while, before standing on two legs for the first time in a year. It was wobbly at first, but he remembered how to walk fairly quickly. Both Kevin and Stacy walked out the barn hand in hand, taking one quick look at their child before they returned back to the house. "it seems that GRAFT" is behaving, what do you want to try next?" asked Stacy in a clean medical lab, breezeblocks all around and a metal stairs indicated they were in a basement of some description. "Let’s try something more....exotic, I'm eager to try some less than human, something unusual" replied Kevin, staring at a vial of unmodified GRAFT. "We have more than enough, it will have the same results as last time" said Stacy, typing on a computer, strings of RNA messenger strands and proteins were displayed on the screen. “so then Stacy.....what shall we become next??" asked Kevin with a devious smile, Stacy giggling as she picked up the vial...