Knock That Old Man Up

While his jaw hangs open, she prattles on, saying how proud she is of him for doubling the foal’s size in the last six weeks. She informs him the growth will continue at a similar rate, at which point he finds enough worlds to tell her in a panic that he can barely get out of bed now! He’s going to be practically immobile if he gets any bigger!

That’s how he gets moved from his room to the breeding stables. When he first hears of the change, he legitimately thinks they’re going to put him in a stall with the animal horses for a moment, so he’s actually relieved when he finds out they’re going to convert the medical room where he’s been getting his checkups into a bedroom for him. His boss moves some new equipment in, and it ends up being relatively livable, though not homely. He doesn’t like sleeping in a hospital bed, but as his womb grows heavier and heavier, he concedes that he wouldn’t be able to get up without the power-adjusting and the bars on the sides.

He’s relieved when they provide him with a walker, though when he realizes the modified shelf on it is for his belly to rest on, he’s too embarrassed to use it for a few days. When he finally gives in, though, the relief is too great to really care. It may make him a spectacle, an otherwise-small boy with the unsightly, misshapen growth of his gut plopped proudly on a pedestal in front of him, but it takes almost 30lbs of weight off of his lower back, so he lives with it. There is still a faint embarrassment to entering a room like this, his stretched-flat navel and the dark shock of a linea nigra bulging through the door before the rest of him waddles after, but it’s gotten to the point that he blushes under the attention.

And he really gets attention when the baby moves. Especially when his belly is resting on his walker, it distorts his bump so much that it’s hardly even round anymore, just skin stretched over constantly-shifting angles. It’s hurt more and more as the baby has grown, and now it’s almost unbearable, flurries of movement dealt with by clutching his sides and groaning, begging the child to stop moving.

He’s halfway through his 32nd week when the pain begins in his pelvic floor. Not the continuous ache he’s felt since he began to show, or even the seizing cramps that have grown more common as his ligaments are forced to stretch too fast, but something crueler, sharper. Something that digs into him from inside, making him yelp and grab at his pussy reflexively. He forgets the mare he’s been watching and radios his boss, telling her the baby is coming.

She meets him at the stables with a wheelchair and wheels him back to his room. Every bump feels like a knife in his cervix, little ah! ah! ah!s slipping out of him with each rock they roll over.

In his room, his boss gets him into his bed and deploys stirrups from the end. No stranger to them by now, he laboriously lifts his legs, groaning as he holds his belly up to keep it from falling between his thighs, and rests his heels in the stirrups. After a few minutes of prodding painfully at his pussy and cervix, the boss declares that it’s just a case of lightning crotch, and he shouldn’t expect labor until 40, maybe even 42 or 42 weeks. He blanches and cries that he can’t do this for another two months, let alone 10 more weeks! Really, they should have done the C-section a month before now, it’s simply absurd to be pregnant with a 40lb baby! What breed was the father, even? A Clydesdale? He knows Clydes-men can sire babies the size of toddlers, but this is insane! Is she sure it’s not twins?

The boss takes in his feverish dismay with a calm, almost amused look. Then she tells him she’s going to give him an IV for the pain. He’s in too much agony to think better of it.

Only a few minutes after she sets up the IV, he swims out of reality.

Consciousness comes in hints and slips. He feels sensations deep in his body, pressure and pain, and movement, so much movement, like he’s under the ocean and there’s more ocean inside of him, not quite deep enough for whatever’s trying to swim inside his body.

He hears voices, sees changing light, feels cold hands on his belly. Only once or twice does he gain enough consciousness to feel afraid or confused; mostly, it’s peaceful and quiet.

When he finally wakes up, the first thing he feels is the heaviness. It’s like nothing he’s experienced, a bone-creaking, organ-crushing pressure, a not-enough-room, like whatever is inside his body is so big that it’s going to push him out. His breaths come thin and small, the effort of each gasp driving him towards panic and causing more pain to spike deeper inside him. It feels like a tent peg is being hammered deep into his pelvis.

Finally, he notices that he’s sitting in a wheelchair, and there’s someone sitting in his lap. No—wait, fuck, it’s just him. He’s huge. No, he’s beyond huge, he’s—he can’t think of another word. His head is still swimming. His belly is so large now that it pins his legs to the sides of the chair and forces his rib cage back, so that he feels like it’s the thing sitting in the chair, and he just happens to be under it.

Then it shifts. A faded cry rises from his atrophied throat, and he shakes his head instinctively as he watches what looks like a goddamn 8 year old moving inside his belly. His chest—heavy and tender—jumps as he fights for air, whimpers eking out with every alien shift of his womb. Then it kicks, and he screams as he thinks for a moment that the foot will tear through his tummy. But it only ignites a sting of varicose veins and a burn of itching, over-stretched flesh.

The sharp agony flares deep inside him again- his cervix, he realizes- and he didn’t think anything could hurt this bad.

Then it gets worse.

Even in his disorientation, he knows it’s a contraction. Hard to think it’s anything else as he watches his bare belly tense, lifting ever so slightly and shrinking away from his thighs, tightening around an inscruitable shape inside of him. He groans wretchedly and tries to reach for his belly, only to find that his hands are velcroed to the chair. He just clings to the arm rests, and futilely tries to breathe through the tightness of the pain, the pressure, the screwing of something thick and serrated into his cervix.

When the contraction ends, he starts to cry softly, though it only makes the stabbing sensation deep inside feel worse.

Through the tears, he sees that he’s in some kind of husbandry stable, similar to the one at his job but clearly elsewhere. He’s so used to the scents of hay and manure that it didn’t even occur to him that those aren’t the kinds of things a person should be able to smell when they’re in labor.

Four contractions later, the door opens, and his boss appears.

“What the fuck did you do to me,” he sobs, in a broken, pathetic voice that can’t carry an ounce of his anger.

She tuts and checks a her phone. “I saved you from the ten most uncomfortable weeks of your life. And you got paid for them! You should be thankful.”

“You drugged me, and— augh!” His belly shifts massively, and he doesn’t get enough oxygen for a moment, panting. “What is this?! What’s happening?!”

She hums at something on the screen. “You’re in labor. We’ve got a buyer for your foal, but he has to see it come out of you.”

“Wh-what?! Why?!”

“Because that’s the whole point. Folk-carried thoroughbreds go for a pretty penny. You’re going to earn $300k today.”

“Wh- no, I don’t—“ he shakes his head, then makes a high, ragged sound at another jab against his cervix. “Fuck, it hurts so bad, something’s wrong!”

“Nothing’s wrong.”

He clenches his teeth. “It’s all wrong! Why the fuck is it so big?! How—“ He wheezes for air and tries not to sob. “How am I gonna get it out!?”

Finally, she looks up at him and actually focuses her attention, giving him an odd look. “Did you expect it to be smaller because you’re folk?”

“I- I expected it to be normal! It’s almost as big as me!”

“Oh, you’re exaggerating. She’s only 90 pounds.”

He feels sick. “Wh- what?!”

“That’s on the small side, honestly. The last foal from this sire was over a hundred. Though, that was from Missy.”

His ears start to ring. Missy. One of the mares he sat on watch with. A regular, four-legged horse. An animal.

A kick stretches his belly. He stares at it, the sharp shape suddenly clear to him. A hoof.

“No… no, no, no, I can’t, I— AUGH!”

His cervix screams and the sharp pain lances right into his lower spine. It’s starting to come out of his womb. Not a head, but—

“The hooves,” he whimpers, “fuck, the hooves are coming!”

“Oh, shoot. Where is he?” She looks impatiently at her watch. “Shit.” Then she turns and rushes out of the stable.

He pants, incredulous. He’s nothing but a broodmare to her. His womb the same as the animals they work with. Tears run down his face as he groans through the brutal contraction, through the terrible press of sharp keratin through his dilating cervix.

His seized-up belly softens, and though the awful sensation of the hooves pushing into his tailbone remains, it’s not as bad without the cramping. He sits there, trying not to sob, feeling so, so stupid. How did he not realize? He knew it was possible, he just…

Spending his time wishing he never signed that contract, he doesn’t expect the next contraction to come so soon. His eyes fly wide, and he groans with the sudden urge to push. A small noise of effort rises in his throat as his face screws up, his over-stretched abs struggling to tighten.

His noise grows louder as he feels a shift, the painful spread of his cervix, hooves digging into him like they might come out of his asshole instead. Whimpering in pain, he struggles to shove his hips forward, fighting the 90lbs of foal weighing down his lap. It’s impossible to get out from under his enormous breeder belly, but he does manage to at least scoot his butt forward, making more room to spread his thighs and creating a space for something to actually come out.

For the foal to come out.

The next contraction comes fast, and he finds that with his posture sunken like this it’s even harder to breathe. His head spins and the world darkens as he pushes. The sensation is so foreign yet shockingly clear as he feels himself steadily pushing the hooves out of his cervix, their angles stretching his pussy. He stops to gasp for air, then ducks his head and grunts as he keeps pushing. Oh, fuck, they’re starting to stretch his cunt. He clenches his teeth and spreads his legs, and manages to push them right to his entrance before the contraction ends. With the next one, the stretch sharpens and he keens high in the back of his throat as he feels like he might tear—

Then he births the hooves, only to feel them butt up against something. His eyes fly wide, and he starts to panic as he realizes he’s wearing some kind of bottoms. He didn’t even think about it, can’t see any of his body beyond his foal-filled belly.

“Shit,” he whimpers. He spends the whole time waiting for the next contraction trying to wriggle around, looking for some way to- to fix this, or— there. The resistance is suddenly gone, like the hooves are free of whatever they caught on. He has no idea how that worked, but he’ll take it. It isn’t until he’s pushing again that he realizes he managed to direct the hooves down one pant leg. He only has a moment to feel vaguely amused by the idea before pain ignites in his cervix again.

Fuck.

Over the next several minutes, in fits and starts, he pushes as much as he can. It’s massive, the pain driving his head to loll around listlessly, his hands to ache gripping the arm rests. His cunt still strains around the foal’s legs, the knobby ankles resting against his thigh, as he struggles to push on the head and knees. It’s a brutal combination, and he hears the grunts and groans he makes as if from far away.

Suddenly, the door opens again, and his boss cries, “Shoot! Stop pushing, wait!”

He shakes his head. His pussy stretches. It’s getting close to his entrance. “Need it… out…!”

“If you push, you’re in breach of contract! You won’t get a dime!”

He stops with an agonized wheeze.

“Good!”

He shakes his head, eyes clenched shut. “No… no, the head’s in my pussy, it’s almost out, it hurts! Let me push it out!”

“Soon, soon, just be patient.”

There is no such thing as patience with his body forced wide from cunt to womb. He can see the image so vividly in his mind’s eye, the knees and head bulging inside his vagina, legs hanging out of him. Fuck, he’s really foaling…

He contracts, and can do nothing but sit there and groan, a long, mournful sound of a broodmare needing to push.

“Please,” he groans. “Please let me foal…”

“Not yet.”

His voice dissolves into a pathetic whine.

Even without pushing, his pussy burns more and more as the spindly legs widen and the nose descends. He can feel them behind his cunt lips, and would kick his own legs in frustration if they weren’t asleep from the weight of his belly.

“Ohhh fuck, please! Please let me… need to push… need to push so bad, need it out…!”

She ignores him, and his womb ignores her, steadily wringing the foal out of him bit by bit, even without his pushing. He starts to whimper as his labia is pried wider and wider.

“It’s coming! It’s coming out!”

“Stop pushing!”

“I’m not! It’s just- hnnng, fuck, it’s just coming out of me!”

She growls in frustration and stomps to the door, throwing it open and yelling, “Get in here! He’s about to foal into his pants!”

Gasping, he claws at the arm rests. “The head! The head! It’s coming out! And the knees, oh god, oh god, it’s crowning! It’s crowning all at once! Fuck! I’m foaling! FUUUCK!”

His cunt opens wider than it was ever meant to, spread around two bulbous knees and the broadening muzzle of the foal. Even as he clenches his jaw and screams in his effort not to push, his contracting body urges the head even further until the true crown wedges his pussy wide around the boxy width of the creature’s head and legs.

The buyer enters the room to the sight of a hugely pregnant boy shrieking as he births the head of a foal into one of his pant legs. The buyer has the boy’s handler lift up his grotesque belly, then pulls off the disgusting, drenched sweatpants himself and releases a hushed gasp at the pretty view of a cunt straining to give birth.

He whistles lowly. “Look at that. Hanging out of him like that… you’ve got a good broodmare, here. Go on, finish foaling for us, boy.”

With nothing left but the desperation to have this horse out of his body, the boy immediately tenses up and grunts deeply. The shoulders bulge his birthing hole, and he trembles for a moment before making a tiny, garbled sound deep in his chest and shoving them out.

The amniotic sac breaks, water splashing everywhere as the foal begins to shift and twitch. The boy groans as its back hooves kick inside his belly. But he manages to lift his legs, grab at his knees, and make a primal, guttural groan as he keeps pushing. For a moment, the foal just dangles half-inside him. Then the barrel torso bursts out of him, tearing a scream of pain from his throat. His handler deftly drags the rest of the horse out, and the buyer watches in bright-eyed fascination as the haunches stretch the boy’s hole one last time before the gangly legs slip out.

The boy looks, bewildered, at what just came out of him, his gaping red pussy pouring fluids.

“I foaled,” he mumbles vacantly, and his cunt clenches like it enjoys the thought.

“Not bad,” says the buyer. He observes his new horse and hums thoughtfully. “A little on the small side, huh?” He pats the still-bulbous belly of the breeder, who whimpers. “Have him make me a Clydesdale next time.”

“Agreed,” says the handler. The breeder’s pussy flutters weakly, and he starts to cry.

“Cheer up, kid,” the buyer laughs. “You’re gonna be rich.”

———

The newly hired horse boy walks uncomfortably into the stable, holding his nauseous belly. He can still feel the bulge and slosh of semen inside, and winces at the memory of being artificially impregnated. He still can’t believe this has happened to him…

But he can’t change it, so he tries to focus on his job. They said stall 8, right? Seeing the hand-painted 8 midway down the stable, he opens that gate and steps in.

He stops in his tracks, limbs going cold at the sight of a naked horse boy on his hands and knees with a a blue and purple belly so large that it presses heavily into the straw-covered ground. He rocks in place, and lets out a low, concentrated grunt, his ears flicking back against his head.

There’s a foal coming out of him. The boy stares in horror at the inflamed ring of his pussy, displacing his hips and his asshole and his clit, making his bound-up tail arch up almost impossibly, room for nothing but giving birth.

Groaning, the boy keeps pushing, slowly birthing the head of a massive, sturdy foal. He stops every once in a while to pant, and doesn’t even scream until the hulking shoulders are splitting his pussy lips.

Suddenly he moans sharply, and it isn’t until he speaks that the watching boy realizes he didn’t expect him to be able to.

“Oh, I’m gonna foal!” he whines, hips squirming, head falling back. “I’m about to foal! I’m foaling! Augh—!” He starts to shudder, his pussy spasming, and his lips fall open.

With an arch of his spine and a full-body heave, the boy cums as he foals out the biggest newborn horse the observing boy has ever seen. It’s easily over a hundred, maybe as much as a hundred and twenty pounds. It’s almost as big as the birthing boy, himself, probably was before that belly grew on him.

Still standing in the door of the stable, the newly-bred boy stares numbly.

“That’s- that’s not what’s inside of me, is it?!” he finally squeaks.

The breeder, half-collapsed next to his foal, looks up with cloudy eyes. He smiles vacantly, glancing down to the small swell stretching his new coworker’s shirt.

I have like 300 ocs so there's a variety xdddd these particular ones pretty much got the whole package at least as observers (Betty is the freakiest of them and will participate in anything lowkey)... Cedric is kinda just enjoying the twonof them having fun and not necessarily what they're having fun with (tho the belly=hot rubbed off on him which is huge for his self-esteem actually >:3)... Jacob would dabble in piss just for the lols but like it's a very scenario specific kink for me (tummy or overstim have to be present otherwise it's just kinda meh) that idk if I can count it xdddd

When it comes to Oscard and Dwari for example I wouldn't say they're kinky but Oscard is obsessed with hhiis wife so like if you want to call being attracted to them no matter what a kink (of course the tummy flavor is there because how can he not love her belly when they're so soft and also that's their kids' first house😭) then ig he is just like you me fr but in their case like idk they probably aren't into oviposition or blueberry inflation and stuff like that xddd

I try to make each of my oc's preferences a little different even if the mix of themes, kinks, and fetishes ia still the same so some get what others don't xddd