Breeder Hippo

Story by kettenesel on SoFurry

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An AI Dungeon story, edited to be readable and make sense.


An AI Dungeon story, edited to be readable and make sense.

You took up a job as an assistant zookeeper to pay the bills. Your days are spent shoveling animal shit and daydreaming about Lara the sexy veterinerian. She is fun, cheeky and seems to be receptive for your constant flirting. However, it seems to go nowhere. Today it is different. Lara smiled at you seductivly when she asked you to follow her to her lab, down by the petting zoo. As soon as the two of you enter, she locks the door behind her and takes of your jacket. You grin like an idiot. You never saw the needle coming she jams into your arm.

"Welcome to the Zoo's breeding program!", she says with a mocking tone in her voice.

Whatever she injected you with, it's in your blood. You can feel it. You can feel it change you. You are turning into a zoo animal. You try to resist, but it is useless. You are a changing man with raging hormones

Lara chuckles evilly as you let out a pitiful groan. "Aww, look and you, I could kiss you", she says as she nips your ear.

You feel animalistic lust wash over you, a sudden desire to breed. You let out a pitiful moan as your dick spasms a bit, straining against your pants.

"I want to fuck you.", she whispers into your ear. You don't need to be told twice.

You try to embrace her but fail as she dodges your sluggish move. Instead, you stumble and hit the wall. As you try to get up again, she moves to your side.

A smug grin appears on her face as she grabs your hand and holds it in front of your eyes. "You are already changing. See?", she says.

Your arm is now shorter than it was. You can feel your fingers twisting and buldging. The tips of your fingers are tearing and changing. Your nails are becoming blunt and grey.

"And so quickly too", she adds. "You are becoming a horny beast."

"Nooo! What is happening to me?"

"You are becoming an animal, of course" she replies. "A horny hippo, probably." >

"Not a fat, ugly hippo please! I don't want to be a hippo."

"You would be a handsome one though", she says, as she runs her fingers through your thinning hair. "But I don't want to be a beast. I want to be a man. I want a family. I want to kiss your.." Your voice trails off as you notice what you wanted to say. Your lust is starting to cloud your mind!

She slides her hand down your pants and grabs your cock. "I know. I know. You are going to have a family That's why we are doing this now. You are going to be a breeder hippo."

You moan and try to back away as she starts jerking your swelling cock, while your body starts to fatten up. Sweat covers your skin, your clothes feel tight against your bulk.

She continues stroking your growing cock as it gets more engorged. Your fat belly starts to strain the elastic of your boxers.

"It's all right. You're safe. I am a doctor."

"You bitch! Stop turning me into a hippo... ooooh!"

Your cock twitches in her hand, clouding your mind momentarily. Your clothes start to rip, your fattening body tearing them apart. You let out a bellowing moan as your spine begins to curve. Your nostrils flare up, as your mouth bulges into an ugly snout. Your arms become bulky and your fingers begin to merge. Your feet swell into massive hooves. Your body changes and you bellow like a horny, fat beast.

"Oh fuck! I'm a hippo!" you moan. "Noo! I'm human, not a hippo! Oooh, I'm sooo hoorny!"

Laura laughs evilly. "You poor, dumb beast! You're a breeding machine. Your mind is gone. Your intelligence is gone. Your personality is gone. You are a beast. But you are MY beast."

You fall down on all fours, your massive fatty bulk shaking while she keeps jerking your hippo cock. Your ripped clothes still clinging, soaking wet, to your sweaty skin. Your hips are forced to bend as your knees give way. Your massive, bloated body shakes and wobbles as you try to gain control of your legs. Your belly strains outward as you grunt and huff, still trying to speak.

Your tail wags around in circles, smacking into the walls of the corridor and sending dirt flying.

You're a fat, ugly beast. You're horny as hell. You're a horny hippo.

You try to speak again, but you can only bellow. Still unsure on your four legs, you wobble around like a drunken elephant, smacking into the walls. Your cock gets slapped by your fat belly as it bounces up and down. Your ass rubs against the cold, damp walls. Grunting and snorting, you finally fall to the side. Your mouth hangs open as your tongue lolls out.

You see the vet coming back to you pulling rubber gloves over her hands.

"I'm coming to help you breed, big boy", she smiles. She begins rubbing your belly. "I want to make you feel good."

Your body begins to shake and wobble. Your massive ass cheeks spread open as your chubby asshole begins to poke out, finalizing your physical changes.

"I want you to breed, you big boy", she smiles.

You let out a long, bellowing burp while trying to get away from her, but you can't get up.

"Poor baby. You're not a fighter. You're a marshmellow, a big horny, softy." You groan and shake your head, but your massive body can't move.

"I want you to breed", she says, pushing your belly fat out of the way. Her warm hands begin to stroke your fat cock and fat balls. You feel her fingers slipping into your loose asshole while she pulls a test tube over your dick to collect your sperm.

"Do you want to breed?" she taunts.

You feel a strange burning in your loins. Your ass tightens up, making your belly and chest tense up as well. "Roooo", you grunt. "That's a good boy", she smiles. Her hand slips in and out of your ass

.Your nostrils flare, taking in you own lusty stink.

"Ah... ah... raaah!" you snort.

"Cumming already, big boy?" she asks, smiling at you.

Her words drive you over the edge as you loins begin to pump, spurting sticky cum into her test tube, making it flow over within a second.

"Yes, such a good hippo. You're a born breeder, darling.", the vet says. She gets up and puts the test tube into the fridge. You look at her, still shaking.

"Thank you, big boy" she smiles. She walks out of the room, winking at you as she goes.

You keep lying there, in your own sweat and juices, wondering whether this is going to be your life now.