This story was written as a commission for JamesFoxes of Fur Affinity. The story is a tour of as many macro themes as could fit into the same story:  growth, muscle-growth, hyper-sex, paws, and even a little inflation and mild vore. The only request was that there be no shrinking. Everything else I could think of with a “macro” angle is present. This is not erotica but—rather—pure porn. Make no mistake: this is fetish material for those who love size. The world-setting (containing Omicron House), and the characters of James White (the human), Taylor Grey (the rabbit), Mack Post (the horse), Tyler Solomon (the fox), Mick Tully (the kangaroo), and Jaydon Golde (the other fox) are owned by myself.

Indelible, part one
©2013 - Sylvan Scott

one

James had no idea what he was looking at, but it was incredibly arousing. Two guys, that much was abundantly clear, were engaged in the sort of activity he often dreamed about but rarely got the chance to experience. He’d had boyfriends and one-night stands but always ended up feeling conflicted about them. There was so much complexity to relationships and sex that he ended up feeling twisted around and bound-up inside every time he stepped outside of his comfort zone. Right now, watching the two go at it, his emotions felt more tangled up than usual. Other than himself, they were the only occupants of the dimly-lit, shadowed room. One leaned against the wall with bent knees and shaking legs. The second knelt before the first. The kneeling man gripped the standing man’s cock in both hands and struggled to fit it into his mouth. Both of them moaned with a mounting pleasure and unfiltered desire. But this had to be a dream. It couldn’t be real.
Neither of the men was human.
The standing man looked like a horse on two legs. He was lean and muscular despite his shuddering. Those legs, although relatively normal from his hips to his knees, bent in an odd way. His ankle joint was taller than a human’s and jutted back into a shape he remembered from biology class as being called “digitigrade morphology”. And, instead of feet, he had large, black hooves shod in shiny, cloth-padded steel. Black fetlocks swept the floor around each. He had slender fingers with black nails, the same color as his hooves. His muscular physique resembled that of a professional swimmer or wrestler more than the big, bulky image of a horse. Chestnut brown fur or hair covered his body while a long, black tail—swishing in erotic fits and starts against the cinder block wall—nearly touched the floor. All these, though, were the least obvious elements of his equine heritage. His head, complete with black mane, was that of a horse. But even that wasn’t his most obvious non-human feature.
His cock, too, was fantastically horse-like.
The stiff shaft was as black as night with heavy veins running up and down its turgid length. At the base he had monstrous balls in a voluminous sack. Each was the size of a ripe cantaloupe. They swung and swayed as he bucked his hips to and fro. And his size...
How the kneeling guy was able to fit such a monstrous organ between his lips (and, partly, down his throat) was mind-boggling. Even from where he stood, hidden in the back of an open-doored closet, James could hear the him grunt and swallow with difficulty around the over-sized horse. The erection was so thick he had to use both hands to stroke it. But his Adam’s apple wasn’t the only thing bulging as he pushed his blunt muzzle forward and back along his partner’s erection. It was like watching a sword-swallower try to deep-throat a French baguette.
If that sword-swallower wasn’t human, that is.
The kneeling man was a rabbit. He had a dusky grey fur with splotches of almost-white, here and there. In part of James’ mind, the color pattern looked as if he’d already had dollops of cum sprayed over his body. A mop of darker grey hair grew on the top of his head between a pair of tall, slender ears. Across his shoulders was a spray of white spots. The brilliant white markings went from tiny to large as they radiated from his spine, upwards and outwards, towards his arms. His body was slender and lithe, not as muscular as the horse, and he had a tight, toned rear. His tail flashed white in the dim room:  a puff of cotton above his hips, thighs, and large feet.
Like the horse, the rabbit was digitigrade.
His feet, appropriately enough, were enormous. They were long and padded with leathery patches on the bottoms of his toes and heel. They curled downwards, flexing with delight, as the rabbit sucked the horse’s cock. The slurping sounds aroused James even more.
How James had gotten here, he didn’t know. The last thing he remembered clearly had been going into the campus library to look for some books on Medieval economic systems. This was anything but. He’d been horny, but that was typical. He’d even jerked off in the library a few times when he’d felt the need. Now, he felt bound-up, pent-up, and confused.
He rubbed his hand over the not inconsiderable bulge in his shorts. Chewing his lip, he prevented a moan at the sensation.
Rabbit and horse continued in their play not noticing their secret voyeur.
The equine reached down and caressed the top of the bunny’s head, delirious with pleasure. James watched as he absently pushed the bunny deeper over his cock. He could just hear the rabbit start to gag but, quickly, redouble his efforts to suck down more of the giant cock. Still kneeling, he spread his stance and lowered himself. Both his paws continued to stroke the horse steadily; he didn’t miss a beat. The giant, black cock slid deeper into his short muzzle. James watched the rabbit’s throat stretch a bit more to accommodate the massive erection. The horse, in return, grunted in a deep, shaking, guttural moan and let up on his insistent pushing on the rabbit’s head.
Neither had heard James’ involuntary gasp. It was a good thing because as the rabbit spread his legs he also raised his tight, toned ass giving James a view of his balls and cock.
The rabbit, while not possessing a shaft as big as the horse, had a pair of balls that, proportionately, looked almost as large. They swung in their soft, grey sack like softballs as his hard shaft rubbed intermittently against the horse’s ankles. Both were huge men:  the horse at least a foot-and-a-half long while the rabbit was a respectable ten or eleven inches.
He had a hard time telling, but the rabbit was probably about five-foot-ten while the horse...
The horse was a lean, muscular six-foot-six in height.
James had a thing for big men … big in many ways, that was. Both these guys, human or not, definitely tripped his fantasies.
The horse slid his other black-tipped hand down to caress one side of the rabbit’s lean neck. He looked down at his playmate.
“Ready for more, Taylor?” he rumbled. His voice was deep and rich like molasses. His deep, green eyes were tinged with the tiniest bit of brown, darker than his pelt but but lighter than his mane. His question had been polite and his tone had belied his urgency. He clearly didn’t care what the rabbit said. Lovingly, but without remorse or hesitation, he began shoving more of his huge cock into his partner’s muzzle. “Better hang on, bunny...”
The rabbit let out a muffled gasp as the he choked down inch after inch of the huge man. His Adam’s apple strained and he raised his hips as if begging to be mounted.
James stroked his hard cock through his tented shorts and wished he could personally answer the horse’s call. He could feel his full, eight inches straining to be released. But he couldn’t join them. He didn’t know what was happening or where he was.
How was this even remotely possible?
“Superis spiritus sequitur corporis potestatem ei concederet,” the horse intoned. His voice was soft and even despite his sexual distractions. But, while speaking, his voice grew louder. He finished with a shout, booming the words as if they were a command. “Fac ita sit!”
James couldn’t believe what he was seeing.
He wished, deeply, he was in the middle of it, though. Despite having to watch from behind the rabbit, he had a full, unobstructed view of what happened next. The rabbit’s large, blue eyes grew wide at the horse’s words. They echoed through the room.
The rabbit, Taylor, began to grow.
Muffled groans gave way to deep, sensual smacking of lips. His muzzle sucked the giant horse’s cock and, soon, it was all that James could hear. The horse responded with a bellow of pure lust. But then, even through the mountain guttural snarls of lust coming from the two, he started to hear the gentle sliding of body-on-stone. The floor’s tile stayed put but Taylor was growing and sliding over its surface. At first, the expansion was subtle and James thought that he was simply managing to swallow more of his partner’s cock. But the horse’s erection was also not deforming quite as much of his partner’s throat.
After apparently swallowing as much as he could, the rabbit began to be pushed back by the huge sex lodged in his body. But as he expanded, growing past six feet tall, he filled out in overall scale. He wasn’t just getting taller. Taylor was expanding in all directions. His huge feet splayed wide to keep him from sliding too much farther as he continued to choke down the huge penis. But, soon, he passed the horse’s height. As he did, the fellatio got easier and he started swallowing more and more, deep-throating the equine with increasing ease.
James stared, heart racing in his chest. He had stopped rubbing his erection but what he was seeing was a thousand times more arousing. Inch by inch and foot after foot went by as the rabbit grew.
The horse nickered and whinnied, having more trouble standing through the haze of pleasure as his partner consumed more and more of him. Taylor passed seven feet tall and eight and even nine. On all fours, now, he sucked in hard, sporadic slurps making the equine shudder and nearly lose his footing.
“Slow … slow down,” his deep voice rumbled. But, this time, it sounded like plaintive begging.
The rabbit didn’t slow down. Instead, he chuckled. James quickly realized that Taylor was the one in charge.
Soon, even on both hands and knees, the rabbit had to lower himself even more. His body was as big as a minivan and the room had begun to look dangerously small. The ceiling was only four or five feet above the top of his back. His lithe muscles flexed as his steady, repeated oral ministrations got louder. The horse was unable to speak; all he could utter was a staccato moan. His mane, once perfect and straight past his shoulders, was a wildstorm of a mess. His eyes were glazed and wide. His hands, once pulling Taylor’s mouth forcibly over his cock, was now pushing as if to keep the rabbit from drinking him dry.
James knew the signs. He’d seen them—felt them—before. The big horse was about to lose it.
Abruptly, it happened.
Those titanic. black balls rose up and taught abs clenched. The horse neighed almost as loudly as an actual horse would. He slammed his head back, eyes on the ceiling, and actually cracked his skull against the wall. Neither man seemed to notice.
Taylor, on all fours, was nearly seven-and-a-half or eight feet high and twelve feet long. His enormous feet reached close to James in his hiding space. Looking around for the first time, he realized he was inside a small room, probably a closet, peering out through the open door. He stared at the huge bottoms of Taylor’s feet as they got closer and closer. They were nearly half his height in length.
Then, the horse fell down.
His rear hit the floor while his hips bucked and bucked. The rabbit moved his paws down around the horse cock’s base and sucked with his lips as tight as they could be. It was like watching someone try to drain every last drop from a tall, chocolate malt. James felt his own cock buck once … twice. He realized he’d started rubbing himself, again, and the titillation had caused his own, little eruption.
The horse continued to cum. Again and again, he bucked like a bronco. He spurt his seed over and over yet Taylor didn’t let a single drop escape.
As the long minute ended, the maned man slumped back against the wall. He panted like a whipped dog. He gasped with high-pitched breaths, begging Taylor to stop.
Finally, Taylor did.
The giant, boyish rabbit shifted around and sat on his enormous, toned rear. He leaned to one side, on his elbow, and reached out one hand to tousle the horse’s hair.
“Well, Mack:  am I doin’ better?”
The horse nodded:  weary and wasted. Otherwise, he said nothing.
Then, the rabbit turned.
His large, blue eyes fixed on the shadows that concealed James. An unexpected, startled squeak escaped his previously occupied lips. Then, he looked closer, into the gloom. Puzzlement fell over the Taylor’s features. Absently, he reached up to a single, six-sided die hanging from a small chain around his neck.
“We have company,” he said.

…to be continued…