Loving Family

Matt huffed and groaned quietly as he picked up two baskets of laundry, holding one under both of his arms as he heaved them towards the bathroom, struggling to get the baskets through the doorways, intent on not wanting to make two trips. He glanced back at the kids' room, the pastel pink and blue wallpapers still looking very odd to him, as if completely out of place in what used to be his bedroom. The last few handfuls of years had been filled with many twists and turns, his one night fling with his own mother turning into a week long session of easing her heat, which then blossomed into a full on romance and relationship, the two foxes realising that they felt something between them even after all the pheromones had stopped clouding their heads. Though the duo both expected that it'd happen, it wasn't until a few weeks after Mary's heat had subsided that she decided to test whether her estrus had done the job that nature intended, the pregnancy test confirming that Matt had indeed hit the mark during one of their many mornings and nights of passion. A little while later, his first kid was brought into the world, a wonderful little silver fox they decided to name Amanda. Only a couple of years later, the kit was given more company as Mary gave birth to a cross fox, her family adding another daughter to it, naming her Cassandra. By now, the fox boy was on the verge of turning 18, his birthday approaching in just a few weeks, his whole life going in a direction he couldn't have even imagined not too long ago. 

Matt dropped the two baskets of laundry on the ground with a grunt, wiping his brow in exaggeration as Mary giggled, the vixen's tail slowly drifting back and forth in the air as she bent over and started loading the clothes into the washing machine, 
"Who would've thought that three kits would be this much work, huh?" 
The young man pointed at her belly, a tiny bump just barely visible through the loose t-shirt that she was wearing, 
"Four, soon enough. We're gonna need to get a bigger house at this rate." 
"Maybe you should think of that before you pump me full next time then, mr. stud." 
Both foxes grinned as he crossed his arms, 
"Maybe my memory's just not all that great, but I'm pretty sure it wasn't me who decided it'd be too much of a hassle to walk all the way upstairs to go get a condom. And it definitely wasn't me who was screaming and hollering about wanting the load inside of you."
"Well…" 
"In fact, I believe the exact wording was: 'Don't you fucking dare pull out or I'll bite you on the ass!', I'm pretty sure."
"Alright, alright. But you didn't seem too unhappy about knotting me either."
Matt playfully slapped the bent over canine on her ass, Mary letting out a quiet gasp as he laughed, 
"Guilty as charged."
His hand lingered on her flank, rubbing and squeezing her cheeks through the sweatpants she was wearing, his own jeans starting to get tight in the crotch as he slipped his hand down the back of her pants. She looked back at him with a smirk, licking her lips as his fingers grazed the camel toe peeking through her panties, the slit rapidly starting to ooze with her juices, sticking the wet fabric on her pussy. 

Mary moaned and wiggled her behind back and forth, bending down even further and arching her back to stick her ass out as far as she could, her attention completely shifting from the laundry in front of her,
"You have something in mind you'd wanna do~?" 
"Oh, I've got a whole lot of things I'd wanna do to you, believe me." 
"Well I'm not going anywhere sweetie, feel free to do as you wish. The laundry can wait, I'd say." 
Matt grinned as he grabbed the back of her sweatpants with both hands, slowly inching them down to her ankles, moaning in satisfaction at the sight of his own mother's pussy lips showing through her soaked underwear. With a quick yank, the pair of panties joined her pants on the ground, her backside now entirely exposed, her cunt steadily dripping a flow of her honey, her cute pucker nestled just a little bit below her tail. The boy hadn't been with too many other ladies besides his mom, in fact he hadn't slept with ANY other ladies besides his mom, but he found it difficult to imagine any other view more wondrous and arousing than that. He opened up his fly and pushed the band of his boxers down enough to let his erection flop out of his pants, one hand tightly wrapping around his red rocket as the others groped around Mary's nethers, the tips of his fingers just barely dipping into her pussy, his thumb tickling her clit. She moaned as she leaned against the washing machine, holding onto it with both hands to steady her shaky legs, trying not to moan too loudly so as not to wake up the two cubs currently enjoying their nap time in the nearby bedroom. Matt knelt down behind the vixen, shuffling in close until his nose was just a hair away from her entrance, the familiar scent of his mother washing over him, just as intoxicating and breathtaking as he remembered. Eager to get to work without any further delay, he shoved his muzzle between her thighs, his tongue diving directly down into her cunt, sloppily licking and lapping at her as she squealed and squeaked. As he ate her out, the boy was wildly pumping at his cock, the rod positioned directly between her legs to let her juices drip down onto it, his fist spreading her slick lube all over the shaft while he masturbated. 

Just as the two foxes were getting into the little break time session of fun, Matt's phone suddenly started ringing in his pocket, the teen pulling his mouth out of his parent's cunt, his lips still moist with her excitement as he muttered and cursed, 
"Ah, shit, c'mon… not now!" 
He wiped his sticky and wet hand on Mary's leg, her fur soaking up the mess he had made, the vixen glancing back at him with a slight irked expression, 
"Seriously? I'm not your towel young man." 
Matt smirked at her, giving her ass cheek a gentle kiss as he stood up, digging out the phone and peering at the screen, 
"It's Clara, gotta take this."
He tapped the answer button, bringing the phone up to his ear, trying not to sound as if he had just been muzzle deep in their mom, 
"Hey sis, what's up?" 
"Heya, I just got out of football practice, but Stacy and her mom are going out somewhere so I can't catch a ride with them like I usually do. Can you or mom come over to pick me up?" 
"Uhh… sure, I think I can do that. It'll take me a few minutes to grab my keys and head over there, just sit tight." 
"Alright, thanks! Is mom busy or something by the way? I tried calling her first, but she didn't pick up." 
"She's… I think she's somewhere in the backyard, doing gardening or something. Probably doesn't have her phone with her. Either way, I'll get going now, see you in a bit." 
"Okay, see ya!" 
Matt sighed quietly as he pushed the phone back into his pocket, him and Mary both standing half naked and roaring to go. She raised an eyebrow questioningly, 
"Something up with Clara?" 
"The lady who usually drives her here after practice had something come up, so she needs a ride home."
The vixen turned around and hugged him, kissing him on the cheek with a warm smile on her face, 
"You go take care of your sister, I'll finish up the housework here." 
The boy pointed at her dripping slit, giggling slightly, 
"What about that piece of business right there?" 
"Oh, I'll take care of that as well, just because you're an insatiable horndog doesn't mean that I've completely forgotten how to use my own fingers. But I do expect that we'll resume where we left off later in the evening~" 
"Deal!" 
The two shared one more quick kiss before Matt pushed his erection back into his pants, zipping them up after a slight struggle, a bump still visible as he stepped out of the bathroom, heading downstairs. 

Matt grabbed the car keys to Mary's car from the kitchen table, quickly throwing on his coat and slipping on his shoes before hopping outside and clambering into the car. He had gotten his license not too long ago, happy to finally be able to easily get around town without needing to pester either his mother or someone else for a ride. He turned the car on and started heading towards the nearby football field where the girl's team gathered up for their weekly games and training. As he drove through the city, humming along to the songs on the radio, the fox slowly started getting immersed in his thoughts, the ride being his first time in a few days that he'd gotten a chance to relax and be all alone for a while. Usually he'd either be tending to his two kids, hanging around with his 10 year old sister, doing chores in the house, or fulfilling the perverted desires of his mother. Though he definitely enjoyed many of the new twists that had been mixed into his life, they did also dump a fair amount of stress onto his shoulders: the boy had to simultaneously balance his life as a teenage student soon moving into work, and as the father of two, soon to be three, kits. In addition to the financial side of things, the fact that he was both the dad and the brother of his kids also brought some issues in regards to trying to hide it from everyone else. Mary simply told others that the cubs were the results of one night stands or relationships that failed rather quickly, but Matt could see a slight amount of doubt in some people's eyes. The kids definitely shared many of his features, Amanda inheriting his blueish grey fur while Cassandra's eyes and face were strikingly close to his own. That amount of resemblance would be very coincidental if both kits were actually the results of random one night stands. Of course, no one would come out and outright say or accuse the incestuous couple of anything, but the glint of doubt in some people's faces was enough for him to worry on occasion. The young man was suddenly snapped back to reality from being buried inside of his own head, the car behind him honking as the lights he had been waiting on had turned green without him noticing. Shaking his head and trying to focus on the task at hand, he continued his journey towards his sister. 

Clara's day had started off on the wrong leg, having woken up groggy, thinking she might be coming down with some sort of a flu. On the bus ride to her school, she couldn't stop fidgeting around, constantly feeling on edge and uneasy, the boiling hot temperature making her sweat and pant. The symptoms of her odd illness only worsened as the hours dragged on, the cub debating whether she should go to the nurse and get sent home. Eventually she decided to just stick it out, Clara wasn't the sort of girl to let a little stuffy nose or an upset belly stop her from kicking butt on the football field, but she started regretting that decision towards the end of her training session. At first, the physical exercise seemed to help: all the running around allowed her to blow off some pent up energy and take her mind off of her situation, but the last 30 minutes were absolute hell. She suddenly started feeling slightly light-headed, taking a break to sit at the sidelines and have a drink. Her coach, a male German shepherd, was standing next to her, overlooking the game and shouting out instructions. For some reason, Clara felt her eyes constantly wandering over to him, her nose twitching and picking up his manly scent as she stared at his backside, his shorts giving her a great view of his ass, the kit even spotting a hint of a bulge forming on his crotch. She quickly yanked her head away as she realised what she was doing, staring directly ahead while cursing to herself, confused about what the hell was going on in her brain. She'd had a few crushes here and there, she thought a few of the boys in her class were cute and she couldn't deny the fabulousness of the lead singer of the boyband she was a fan of, but Clara had never had THOSE sorts of thoughts before! She wasn't a pervert, surely not! But as much as she tried to deny it, her mind was constantly dragged to the canine coach standing only a few feet away from her, the fox's pupils dilating and her breath quickening. She muttered out a quick excuse about needing to use the bathroom, and ran off to the locker room. The training session ended shortly after, her friends joining Clara. As they talked and giggled, she tried to control herself to no avail, her mind filled with dirty thoughts and fantasies about every one of them, images flashing of her raven friend kneeling in front of her and licking at her pussy, or her best friend kissing her while she had her fingers deep in the friend's slit. The kit could feel sweat pouring down her brow and back, the walls seeming to close in on her, the scorching hot lights burning and blinding her, the cacophony of sounds and smells making her frazzled and confused. One of her friends asked if she was alright, the girl just nodding and stuttering out an excuse about remembering a meeting with a teacher that she needed to attend. Clara waved to her friends, shouting out a chipper goodbye before throwing her gym bag over her shoulder and jogging out of the locker room. She stepped outside, giving a gentle sigh of relief, a tinge of the winter chill still hanging in the air. Usually she'd wait for her ride inside, the young kit not being a big fan of the cold or the damp, but on that day she simply had to get away from it all. She needed to be alone while she figured out what was going on. She fished out her phone, clicking the contacts list to call her mom for a ride home. 

Matt veered around the corner to the school's parking lot, about to pull out his phone to send a text message to Clara when he spotted her, standing all alone on the curb. He came to a stop next to her, the 10 year old kit opening the passenger side door and slipping inside, tossing her gym bag to the backseat as she greeted him, 
"Hey, thanks for the pick-up." 
"No problem, always happy to help my tiny little sister." 
He ruffled her hair and chuckled, Clara playfully batting his hand away, the jokes about her being on the shorter side of things common among the two,
"Says you, mister stick!" 
"C'mon, I'm built like a brick shithouse, I'm no stick!" 
Matt jokingly flexed his arms, the siblings sharing a laugh as neither of the two foxes were particularly blessed with a lot of meat on their bones.
"Alright, sure, whatever you say. Just get us out of here before one of the meter maids comes along and gives you a ticket, you're not supposed to park on the curb here."
Clara snapped her seat belt on as he drove off of the parking lot, heading towards home. He glanced at her a few times, sensing something was wrong, spotting that there was something a little bit off about her demeanour. She tried her best to act nonchalantly, but her brother knew her far too well to fall for that,
"So, how's your day going? Something happen at school or at practice?" 
"What? No, why?" 
"You sure? You haven't even complained about my choice in music yet, usually you're immediately all over the radio as soon as you step into the car with me. So I'm pretty sure you're on the verge of dropping dead based on that." 
She smiled slightly at his jokes before sighing, 
"Just a… flu, or something, I dunno. I just wanna get home and go to bed." 
"You wanna stop at the pharmacy or anything like that, I don't think we've got anything other than some painkillers back at home." 
She simply shook her head, leaning against the door as she stared at the sights zipping by, her fluffy tail curled up on her lap. 

As Matt drove along, passing through the city on his way back home, he slowly started to notice hints of something very alarming. He hadn't noticed anything too odd about the girl's smell before, Clara's own scent cloaked in the sweat and odour of tens of other cubs from the practice, but as the other distracting elements slowly disappeared, his nose began picking up her unadulterated scent. The young man was very familiar with her smell out of necessity, being a canine and living very close to her for several years. The usual pure and innocent aroma had an odd undertone to it, something he was intimately acquainted with but just couldn't place no matter what. He racked his brain trying to think of what it was before it finally hit him, the wave of pheromones engulfing him as his eyes nearly popped out of his skull, his little sister was in heat! He could usually recognise the scent of a female going through heat in his sleep, his mom had made sure of that, but he'd never really thought of his sister in a lewd way before, so the two dots he needed to connect were on the complete opposite sides of his brain. He was obviously more than fine with incest, but he viewed his own sister as going a step beyond anything he'd ever done before. As he made the realization, suddenly everything clicked into place regarding why Clara seemed so uncomfortable, a girl's first heat famously being a difficult time. A young cub's sexuality had always been viewed as something extremely taboo, but heats made that line of thinking a particularly difficult one. Should a cub in heat be left to their own devices, or should an adult in some way guide him or her through the endeavour? The question was a debated one, the answer usually differing from one family to another, many parents using the first heat as an opportunity to have the talk and give some tips on self pleasure. Clara hadn't had any formal sex education, canines usually starting to have heats a few years later than her age. All she knew about estrus was from a few dirty jokes and hushed titters among her friends at school. Even though the kit didn't know what was going on, her body certainly did, her sensitive nethers grinding against the car seat, rubbing her in all the right ways with every bump. Her cheeks blushed as she stealthily wrapped a hand around her muzzle to stop herself from moaning, her panties staining with her juices. Matt gulped as he stared at the road ahead, the small car quickly filling up with the young girl's enticing scent even with the air conditioning on full, the erection picking up right where it left off when he was interrupted earlier on the day. She could feel the nipples on her small tits perking up, neither fox uttering a single word, a blanket of awkward silence covering the car. 

Matt pulled up on the driveway, both siblings quickly climbing out of the car, Clara grabbing her gym bag from the back. They walked into the house, finding it entirely quiet, the usual hustle and bustle of a mother and two young kits missing completely. The brother spotted a small slip of paper sitting on the dinner table in the kitchen, picking it up and reading the note out loud, 
"Hey sweethearts, I saw that we didn't have any laundry detergent left, so I loaned the neighbour's car and took Amanda and Cassandra with me to the shop. I probably won't be home yet by the time that you get back, so just hold down the fort for an hour or two. Love you both!"
Clara set down her gym bag, wiping a bead of sweat off of her face as she leaned against the kitchen counter, her legs discreetly squished together to cover the growing bother in her shorts. She turned her head to hide her flushed face, 
"I think I'm gonna go take a shower." 
Eager to get some relief from the heat and to change out of her wet underwear, she quickly turned around and disappeared upstairs, almost sprinting as soon as she was out of eyesight. Matt shook his head and grinned, a part of him very sympathetic towards his sister, knowing exactly how troublesome being around girls in heat is, while another part of him also laughed at the situation, finding her cute awkwardness quite funny. Before he could chuckle about it too much however, his dick twitched in his pants, the clouds of pheromones in the air working their magic on him. He sighed as he also headed upstairs, hoping that maybe a few moments alone in the bedroom with some good porn might ease the temptations. He quietly walked up the stairs, a few years of taking care of little cubs instilling in him an instinctual reflex of tiptoeing around the house to hopefully not wake up any napping kits. While walking through the hallway towards his and Mary's bedroom, he noticed a beam of light shining through the bathroom doorway, Clara accidentally having left the door just a slight bit cracked open in her hurry to dive into the shower. Matt froze in place, a heated debate about what to do storming in his mind, his loins casting their vote with his knot slipping free of his sheath. He was fully convinced that he had absolutely no sexual interest towards his little sister, or at least so he thought about 30 minutes ago. The car ride home had planted a seed of doubt in him, slowly growing larger and larger. He didn't know whether it was some sort of hidden and base desire that he had actually harboured all this time and just didn't want to acknowledge, or whether this was just his brain being momentarily twisted by the chemicals of the heat. He held his breath and stepped closer to the door, peeking through the crack with one eye as he pushed a hand down the front of his pants, his heart beating and his tail wagging. 

Clara huffed impatiently as she ran into the upstairs bathroom, pushing the door closed behind her while she began tearing off her clothes. First to go was her t-shirt, the fabric clinging to her moist  grey fur as she flung it into the pile of dirty laundry, her shorts joining it a few seconds later. She panted as the cool air surrounded her, yanking off her socks and wiggling her toes, the touch of the cold tile floor on her pawpads feeling almost orgasmic. Next she unhooked her bra, struggling with it for a few moments, her breasts only recently getting big enough to need the support, the two small mounds jiggling back and forth as she bent down. The kit carefully pulled down her pink panties, her legs and arms trembling as the slightest touch on her puffy spade sent bolts of electricity up her spine, the fabric of the underwear clinging to her pussy and making her squeal. She bit down on one of her hands to stop herself from making more noise, her ice pick fangs piercing her hide, the pleasure far too great for her to even notice the small amount of pain. Finally able to pull the panties fully off of her crotch, she let the pair drop onto the floor and kicked them to the side, her chest rising and falling rapidly as she leaned against the shower wall. Without intending to do so, her tail rose straight up, her back arched in just the perfect manner to flash her bare goods at the bathroom's doorway, her canine cunt and tailhole both twitching with the need for a breeding. Matt had his full focus and attention on the show happening right in front of him, the boy still like a statue from his waist up, only his right hand frantically gripping and stroking his cock. He had his shorts and underwear pulled down below his balls, his knot throbbing as his clear precum ran down his fingers, his mouth dry and his nostrils flaring up as he spied on his little sister. 

Clara reached back towards her flank with one hand, her fingertips gently running up her thigh before brushing up against her fortune cookie, her lips glistening with the natural lubricant leaking from her slit. She had tried masturbation a few times in the past, after coming across some lewd videos while browsing the internet and deciding to test out what was so special about the whole thing. During her previous sessions of research, she didn't see much of a point in it, the rubbing and grinding against her pillow and stuffed toys only making her very ticklish. This time something was very different however, just the smallest little touch of her pussy making the cub's eyes light up, her knees buckling. She took a deep breath, slowly circling her fingers along her pussy lips as she built up the courage before fully pushing in one digit. Her high pitched moan echoed off of the hard walls for a few seconds before she managed to shut herself up, her inner walls constantly gripping and squeezing at the finger in her, the amount of juices running down her legs multiplying almost instantly. Just one little finger wasn't enough for Clara however, the young girl's body calling out for something with a little bit more reach and girth. She pulled her hand back from her crotch and quickly looked around the bathroom, scanning for anything she could use to help relieve the desperate need. Matt stood completely still, panicking while simultaneously being too horny to back out now, the teen almost as desperate for resolution as his sibling was. He watched as she ran over to the sink, grabbing the first toothbrush that was within her reach, which just so happened to be his. She squatted down, bracing her back against the sink cabinet as she closed her eyes and bit her bottom lip, one hand spreading her spade open as the other slowly pushed the toothbrush inside of her. The makeshift dildo sunk all the way down in her, only the bristles remaining out of her cunt, completely covered and soaked in her preteen nectar. Quickly acclimated to her toy's size, Clara started wildly sliding it in and out, tiny yelps and squeaks escaping her maw with every thrust, her knees spread wide open to accidentally give her audience a wonderful view. Matt used the opportunity to the fullest, on the brink of blowing his load as he watched her masturbate, his nose picking up her delicate and lusty scent. Both foxes orgasmed at almost the same time, the cub's legs shaking as an arc of her juices shot out onto the tiles, soaking her feet, her cheeks glowing red with excitement and pleasure. The sight of her first time cumming made her brother double over as he gripped tightly at his knot, his tip spurting out huge ropes of his seed, splattering the door and the floor. His quiet grunts were covered with Clara's moans, the toothbrush slipping out of her and clattering onto the ground as she huffed, slumped over against the sink. Matt quickly wiped up as much of his cum with his feet as he could before hobbling over to his bedroom, collapsing on the bed, completely out of breath. 

Clara slowly regained her composure, her whole vision blacking out for a few seconds from the sheer pleasure and sensation overload of her first orgasm. She tried to stand up, finding that both her legs and her arms refused to hold her weight up, the tired girl crawling on all fours until she managed to get under the shower, reaching up to turn it on. She sat under the stream of water for almost ten minutes before she finally felt strong enough to get up. It took another few moments of lathering up with a rather generous amount of fur shampoo before she felt that the stench of sex and heat was sufficiently hidden, and even then she could still detect a hint of it lingering in the air around her. She finished up with the shower, wrapping a towel around herself. As she was about to leave the bathroom, she noticed Matt's toothbrush still laying on the tiled floor in a puddle of her juices, her face lighting up with red out of shame. She quickly picked it up and placed it back into the mug where it was supposed to be, too tired to bother with cleaning it up. The kit staggered out and into her room, locking the door behind her before falling face first into her bed, all energy sapped out of her. She felt a wave of relief washing over her, her masturbation finally granting her some reprieve from the heat. In the course of just a few minutes, her eyelids closed and her breathing relaxed, the cub drifting away to sleep. 

As the hours slipped away, the sun dove down behind the forest bordering the backyard, night slowly falling on the household. Mary had returned from her trip to the stores, Matt and her unpacking all of the groceries as the two youngest kits ran around the house. Eventually the four foxes were all gathered around the TV, relaxing in peace. Mary looked around the downstairs, turning to her boy toy in curiosity, 
"So, where's Clara at? She's always trying to hog the television on a Friday night usually." 
"She's… a bit tired, I think she's sleeping in her room." 
"Sleeping? This early in the evening? I haven't seen her go to bed before midnight since she was six."
Matt chuckled as he leaned in closer to his mom, snuggling up next to her and whispering into her ear, 
"I'll tell you later, once the kits are all in bed." 
A few hours later, he was herding Cassandra and Amanda around, finally managing to get the two little girls to bed. He kissed both of them on the forehead, tucking them in for the night before clicking off the lights and carefully closing the door. As he stepped into his bedroom, he found Mary already waiting for him, fully nude and on her side with her legs tucked up just barely enough to expose a hint of pink beneath her tail. She grinned at him, motioning for the teen to join her in bed,
"So, where'd we leave off earlier today~?"
Matt pulled his shirt off, tossing it aside along with his pants and socks, only his boxers left to hide his quickly rising erection as he jumped into bed, 
"Well, I think I had my muzzle buried between your wonderful thighs, and you were screaming for me not to stop." 
Both canines giggled as they embraced, kissing each other as the boy groped and massaged her body, his hand eventually trailing down to her cunt. 

Matt's fingers danced on her mother's canine pussy, quickly shifting back and forth from teasing her clit to shoving three digits knuckle deep inside of her, their bodies pushed right up against each other. She had a glow of motherhood and lust on her face, Mary's fur puffing up as she nuzzled even closer to her young lover, moaning in a relaxed tone, 
"Mmh… you're so good with your fingers~" 
"I had a lot of opportunities to hone my skills." 
The two foxes giggled lightly, continuing their nightly ritual as the vixen massaged his bulge through his underwear, 
"So, what's going on with our little Clara?" 
"She's becoming a big girl it looks like, she's started her first heat today." 
"Is that so? I thought I smelled something in the air. She told you?" 
"Nah, too shy, and probably too proud, to say anything. It was pretty obvious from the smell though." 
"Sniffing your little sister, huh? Who would've thought my sweetheart would grow up to be such a big deviant." 
The boy laughed, sliding his fingers free from his mom's cookie, 
"I guess I take after my mother then." 
He brought the fingers up, Mary grabbing his hand and taking the digits into her maw, sensually suckling on them, running her tongue up and down along them to clean her juices off. He watched in slight awe, his dick throbbing in his boxers and squirting a load of precum, Matt occasionally forgetting just how big of a pervert she had turned into after hooking up with him. She let his fingers go, a grin on her face, 
"Let's just hope I won't get too territorial with her on accident. I'll need to keep my man to myself after all~"
She hooked a hand behind his back and yanked his hips towards her, forcing his tip to poke up against her slit, the pussy lips kissing his knot and leaving a slick smear of her honey. He bucked up against her, sliding the length almost fully in the hot and humid canal, both canines on a hair trigger after all of the teasing. Mary panted as her pregnant belly and plump tits bumped up against her son, the bedsheets wet with the combination of their juices. Holding her tight, he howled as he erupted deep in her, his knot remaining outside of her slit as cum rushed into her in heavy squirts. The pair stayed in the hug for a few minutes, gathering their breath before Mary kissed him, 
"I love you so much honey~" 
"Love you too mom~" 
He rolled over onto his back, his dick glistening in the moonlight, slowly going limp and flopping against his belly as he closed his eyes. He didn't bother stuffing the cock back into his boxers, only lazily pulling the blanket over him as sleep began to overwhelm him, reality vanishing as he fell asleep. 

Matt muttered and mumbled in his sleep, a vivid dream shaking him awake. He opened his eyes, seeing only pitch black but feeling something on top of him. He slowly moved his hand to his chest, feeling warm fur nuzzled against him, a slight smile creeping onto his face, the boy thinking it was his mom hungry for some midnight fun. As his eyes adjusted to the darkness more and more by the second, he suddenly noticed that the fur of the mystery cuddler was grey, almost invisible in the night. He froze completely still, his eyes darting over next to him, seeing the form of Mary lying on her side, her back towards him. His expression was a mixture of shock and horror as his sleep-addled brain revved up, the realization of what was actually going on slowly sinking into his head. He hadn't noticed it before, but Matt could detect a hint of lust in the air, the scent of heat growing stronger, two determined and fiery brown eyes staring at him from the dark. A pair of hands massaged at his chest, gentle fingers circling and kneading at his fur, slowly travelling downwards, the figure cloaked in shadows straddling his crotch. The pressure and slow grinding against his nethers combined with the feral pheromones clouding his mind caused his dick to quickly wake up from its slumber, the red tip of it already poking out of its sheath. The young man could feel waves of hot breath hitting him in the face, frantic and rapid panting telling a story of desperation. A whisper reached his perked ears, the voice undeniably his sister's, 
"I'm sorry bro, I really tried not to… I just can't take it anymore~!" 
Even with all of the evidence before him, he refused to believe it was Clara that was groping him in the middle of the night, the fox absolutely sure that it was simply some sort of a very realistic wet dream that he was having. His doubts went out the door as soon as her hand grabbed at the growing knot in his sheath, a gasp from him echoing in the otherwise quiet hallways of the house. It was definitely Clara, no dream could feel that realistic, or that good! He glanced over at their mom peacefully sleeping only a few inches away from the act of perversion, gulping before speaking in a hushed tone, trying to be as absolutely quiet as possible, 
"Clara, what are you doing! Just… go back to bed, please! You'll feel better in the mor…"
Matt clenched his teeth as his sister's fingers slid across the sensitive tip of his cock, almost the full length of it pushed out of his sheath. The clouds parted in the night sky, allowing the moonlight to flood the room, the sneaky kit's form fully revealed to her brother. She didn't have any clothes on her, the girl's puffy spade resting against his ballsack, glistening in the light as it constantly dripped with her excitement. He could see the desperation and the iron will in her eyes, she was in control of the situation and she would make sure she'd get what she needed. Unbeknownst to both of the young foxes, Mary's eyes were cracked open, a devious smirk on her face as she slowly moved one of her hands down to her pussy, her breathing steadily hastening as she listened in on the show happening right next to her. 

The young fox girl squealed as her slit pressed up against her older brother's dick, wetting it with her juices as she grabbed it and slid his sheath down below his knot, taking a second to admire the full length of it in all of its glory. Matt's eyes begged for her to stop, but his loins told another story entirely, precum streaming down onto his heavy balls as she aimed his tip at her entrance, bracing herself for the ride of a lifetime. With a wet squelching sound, his rod disappeared into the kit, a tiny bulge appearing on her belly as she popped her cherry in one quick motion, her hips crashing down onto him. She threw her head back and moaned like a feral hound, Matt quickly grabbing her muzzle in an attempt to muffle her cries of incredible pleasure, the endeavour only widening the grin on Mary's face as she pushed two digits into her pussy, a pool of saliva on her pillow as she bit down on it. Clara began riding her brother, furiously throwing herself up and down on his shaft, the springs on the bed squeaking with every thrust as his knot kissed her slick lips, the girl completely lost in the fog of heat and lust. Matt was only barely able to hold on, the incredibly tight and virginal tunnel milking him, every slight curve and delicate texture perfect for his cock. He could do nothing except enjoy the ride, the boy completely pinned against the bed by Clara's ferocious ambush, the need to unload very quickly building up. He grabbed his sister's hips and held on tight as she slammed her whole weight on him, her canine pussy stretching wider and wider before his knot finally pushed inside, securely tying the two siblings together. Clara's whole body shook as she came for the second time in her life, the intensity of her orgasm tenfold when compared to her first time, her tail pinned against her back and her maw hanging wide open. Rapid waves of clenches ripped across Matt's shaft, bringing him to the finish line, his vision blurring as he moaned and shot his virile load into the cub's womb, thick seed coating her walls. She fell down on top of him, nuzzling into his neck as she huffed and purred in the afterglow, the feeling of her depths being pumped full being the only thing she could focus on in the moment. The boy stared up at the ceiling in disbelief, a slight grimace on his face whenever her cunt squeezed down on his sensitive knot, the last few drops of cum spurting into her pussy. Before he could even think of the consequences of unprotected sex with his younger sister during heat, Mary suddenly spun around to face the duo, smirking at his horrified face, 
"I see you two had a lot of fun. Not very fair that you didn't invite me into the action though, don't you think?" 
She pushed the blanket off of herself, revealing her sopping wet cookie. Matt was starting to think that he might not be getting a lot of sleep that night.