WHAP WHAP WHAP WHAP WHAP WHAP WHAP.

Comfy Clouds groaned, nerves awash in the disorienting mix of extreme discomfort and pleasure that came from being stretched to his absolute limits. His eyes switched between closed and half-lidded to focus on the pony atop him, head lolled to the side with a skull that buzzed his brain into mush. Too seized by the moment to move of his own volition, his body simply acted by itself, hind legs kicking at empty air and forehooves pawing at the earth below without anything else to do or hold onto.

As the hung cow above him drove every inch of her deep-drilling bull-cock into his tight boy-pussy, he faintly grasped enough wherewithal to wonder how he'd gotten into this situation. The cow he'd been assigned to take care of and handle - Summer Solstice was her name, or at least it had been once upon a time - was typically more well-behaved than the others. He'd often been curious why she was the most docile despite being the most virile and productive of all the bull-cows on the ranch, but he'd never felt the need to think on the matter. Now, he wondered if that not knowing had ultimately led to the horny creature pinning him down into a firm and unrelenting mating press.

"Mah... mmoooooooo...!" Summer lowed, interrupting Comfy's internal musings to put his attention on her. He struggled to crane his neck upwards, having to actively focus on pulling his tongue back into his slack jaw. His gaze, blurry as it was, met hers. What looked back into him was a pair of gorgeously sparkling aquamarines, like the glittering surface of a tropical sea.

Sparkle or not though, they were utterly devoid of intelligence. He was vaguely aware that, at some point, all the various cattle on the farm were normal sapient ponies just like him. The higher-ups never really told him much. He was just supposed to take care of any cow or bull that he was assigned and his duties and inquiries ended there. Peering into those eyes though, he found it hard to think they had ever once held even a little brainpower beyond raw animal instinct. All the same, he could see beyond the feral hunger and lust for his body and juicy breedhole an endless fount of love for a handler she cared for dearly.

She gave another lowing 'moo', and after a particularly brutal thrust against his cervix that made him whine, she leaned down to lick his cheek as if to apologize for any pain caused. Her tongue was flat and broad, more so than normal equines as was expected for a mostly bovine pony such as her. She lapped his cheek again, lovingly, as if she were grooming him.

"Ah-I-" He huffed, shuddering at the sensation of her hot breath against his fur. Mercifully, she'd slowed her pace to something more reasonable than her brutal hip-breaking rhythm, but the thanks for that was cut by the flat teeth clamping on his sensitive neck. He gasped, arching his back, and the involuntary shiver ran down to between his thick thighs for a firm squeeze around her hole-ruining fuck-tool. "I luhlove you too, buh-but you should really-"

Comfy didn't get the opportunity to finish before she pulled away, reared her hips back, and slammed forward with enough force to push his body back against the grass and dirt. His eyes shot open, pupils shrinking to pinpricks as a sharp series of stabs and mind-numbing bliss wracked his body. With that buck, not only had she thoroughly battered his cervix, but her flare had completely burst past it. He opened his mouth to scream, but after a few moments of no sound coming out he instead gave a high-pitched moan of whorish delight.

If what he'd been experiencing for the past however long he'd been getting his cunt intricately re-shaped was like being shoved, the new motions that Summer settled into now were akin to being slammed into a concrete wall. He could barely even speak, merely laying back to endure with limp limbs that twitched and jerked, lungs burning and spittle foaming through clenched teeth.

This was what being claimed felt like, he realized. Oh stars, oh Sun and Moon, she wasn't going to pull out. He knew that now. Why had he thought any differently before? She was just a dumb breeding bull, obviously her primitive goal from the beginning was to knock him up.

Worse still was he could tell she was nearing her orgasm. Her thrusts were quickly becoming more erratic, and the throbs of her womb-stretching she-meat were getting faster. And why did she have to be so fucking huge? Her head-dwarfing, cum-churning cannonballs were one thing, only so large because she was a cum-cow, but her dick all by itself was thicker than his hoof. Were she not beast-brained livestock, he honestly could have pictured himself as her coltfriend, but he supposed he might as well be once he was carrying her spawn.

"F-f-fuck!" He cried, weeping from his eyes and spasming colt-cunny alike. Her nuts were going taut, sack drawing close to her heavy spunk-dumping testicles that left ass-wobbling impacts against his enormous, plushy boy-booty. "Y-you're going to... b-breed me...! Hnnnf!"

She gave her reply as a vocalization, the only kind she could possibly make, in the form of a nostril-flaring snort. They were both nearing the edge now, his pussy raw and tender and her plowing rod surging with aching pressure. Her crown flared wide in his womb, bulging out his belly even further than it already was, and no longer able to pull out and push back in with as much length as previously able to she resorted to fucking him in short, humping jerks.

With one final, pile-driving plunge, Summer raised her snout to the sky in a throaty moo as every part of herself delved to the deepest extent it could in Comfy's foal-slot. He came at the same time that she did, splattering her crotch with copious amounts of juices as her searing gallons of glue-thick babybatter poured into his belly like molten metal. In little time at all the bulge in his tum swelled outwards, burgeoning forth with enough bull-milk to fill a few heavy duty tankards. He felt fuller, warmer, happier in that seemingly everlasting moment than he had at any point before in his whole life.

"Y-yes, D-Daddy, make me your mare!" he begged. "Buh-breed me! Breed me! Br-breed mah-mooooooo...!"

In lieu of shoving his hooves over his mouth, he snapped is jaw shut. What had he just said?

Unfortunately for him, he wasn't able to ponder it any longer before the changes began. They were relatively slow to the outside observer, like watching a balloon slowly inflate, but to him it was so fast and hard-hitting he didn't even get the chance to process it before it was nearly done.

It came, all at once rather than one at a time. Nubs sprouted from his forehead as flat teats capped with nipples budded above his well-bred brood-hole. His ears lengthened, flopping out and downwards as if being stretched like taffy. Even his tail changed, the dock pushing outwards and consuming any hair until all that was left was an adorable tuft. The bumps blossomed into full cow horns, small and cute unlike Summer's jutting handlebars. But the most significant change was by far his new crotch-tits, growing quickly to be close to the size of Summer's orbs and brimming with as much milk as her testes did spunk.

After a little while of panting and puffing, Summer's length softened enough for her to pull out of her sow's pussy with a squelching wet pop. Comfy's belly immediately discharged whole cupfuls of his new stud-bull's steamy hot nut-slag, releasing the excess plugging up his tummy. It came gushing out from his aching boy-cunt like a freshly busted dam spilling forth its reservoir, thick as tar and so intensely warm it felt like simmering lava as it made the short journey down his sweaty, thoroughly sore ass to the grassy ground below. He was lying in a puddle of Summer's spent fuck-slop before his belly was even halfway drained. Despite that, his gut still looked like a pretty pink used condom. He certainly felt like one.

He looked up at her again, dimly, tongue hanging out and openly drooling onto his furred chest. She smiled at him dopily, nuzzling his cum-fat midsection as his forelegs curled in against his chest.

He opened his mouth to tell her something as his brain slowed to a crawl. When he managed to speak the word, his eyes were as dull and brainless as her own.

"Mooooo..."

Author's Note

This story was commissioned by a friend. If you'd like to receive a commission of your own, see here for more details.