Becoming a Broodmare

Story by Amethyst Mare on SoFurry

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A rapist must pay for his crimes, but there is some poetic justice in him becoming a broodmare for a randy stallion...


Always open for commissions!

This story has been up for a few weeks on my Patreon already!

Patreon: https://www.patreon.com/arianmabe


A great one to work on for a fantastic commissioner whose ideas are pushing me out of my comfort zone and exploring new kinks. Hopefully more to come! I love that the rape has a sense of justice about it as the main character is a despicable individual and it's just a vicarious pleasure to have him treated in this manner. I'm sure a similar scene could be done without such a horrible main character, but it certainly felt good to write this up!


Story (c) Arian Mabe / Amethyst Mare

Characters (c) Bukefalos06


Becoming a Broodmare


Written by Arian Mabe (Amethyst Mare)

Commissioned by Bukefalos06

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Jason Mallory sat on the edge of his prison bed with his head lowered, his bald skull strangely vulnerable in his isolation. His white shirt sleeves were rolled up under the edges of his orange jumpsuit with his bare feet flat on the cold, stone floor. The room facing out onto the main prison unit - housing more prisoners than he could count - was as cold as all the rest, yet this one had the added feature of water seeping across the floor from the broken toilet. He wriggled his toes, eyeing the water as it inched towards him. The guards wouldn't have it fixed for him. Not after he'd started the riot.

However, there was not an ounce of repentance in his steely stare, a small smile pulling at the corner of his lips, trimmed ginger beard twitching with the shift of muscle. It had all been worth it, every punch and every blow. He knew what he'd done and he relished his crime. Jason Mallory was not a human being worthy of the title. He remembered them, each and every one of the women he'd raped. His cock swelled in the underwear that did not belong to him, drooling pre-cum. The rapist smiled. They'd cried so beautifully when he'd taken them.

He closed his hand into a fist, he tattoos lacing his arms trembling. He may have been thrown in prison for his crimes, but only he could understand why he'd done it. No one else could understand his sick perversion.

"Mallory."

The prison warden shook his head outside the prisoner's cell, lips twisted in evident distaste. Jason didn't even raise his head, but instead let out a hollow laugh.

"Time to be going then?"

His voice rang raw and raspy as if he had not spoken for several days. The guard frowned and shook his head for a second time, lips pressed into a thin, hard line.

"That's not for you to decide."

Another guard that Jason had not seen before joined the first at the cell door and smartly cuffed him, flanking him with one on either. They knew well enough what he was capable of and proved far from gentle in their handling of him, fingernails digging into muscle as they bullied him down the corridor.

"Is it the death sentence for being involved in a riot now then?" He muttered as he was hauled bodily down the corridor, cuffs biting into his skin. "Would've thought you'd know I wasn't the one who started it."

The blonde-haired guard, the new one to him, laughed and cast him a cruel look that burned with sincerity.

"No, what's coming for you is the real punishment for your crime. Crimes."

Spitting on Mallory's bare foot, he smirked as the gleaming spittle slid between the man's toes. Even the prisoner scowled, pulling back as if he could escape the sensation. There was no dignity allowed for Jason has he was dragged and forced to stumble over his own feet right down to the end of the corridor. He supposed he could only be thankful that it was not that far to go. He already had enough bruises littering his skin after the riot, if not a few broken ribs too along with his split eyebrow.

Nobody cared about things like that when it came to prisoners.

Thrusting him into the room, the blonde guard shoved him in the small of his back, making him tumble forward onto a lowered table. Cursing, Mallory pushed his tongue from his mouth and spat blood, the edge raw where his teeth had caught it in his fall. What the fuck was a table doing so low down anyway? He twisted, trying to push himself back up as a hand thumped heavily between his shoulder blades, keeping him pinned. The prisoner swore.

"This the new one, boss," the guard said gruffly to someone Mallory couldn't be bothered to raise his head to look at. "Anything you want us to take care of for you?"

A pair of high heels clicked across the linoleum.

"Perfect. Position him like the others, please. You know the drill."

The cuffs were gone before Mallory realised what was happening, yet his hands were just as swiftly slammed into the sides of the table. Steel cuffs fixed into the table itself snapped closed around his wrists, leaving no indication that there had ever been a join in the metal at all. Cursing, he kicked out and warped his voice into a scream, hurling his body against the restraints as if he could dislodge himself from sheer force alone.

The guards backed off, heading for the door as the woman stepped up to him. A dark beauty clad in a white lab coat, her black hair fell in loose curls about her shoulders. He snarled at her, teeth snapping at nothing, curses blending into swears until one was no longer distinguishable from the other. Yet she only adjusted the collar of her coat, looking down on him from her higher level.

"You should quell your curses, Mallory, and be more thankful. You have been chosen to take part in project NOAH."

The woman surveyed him over the top of her glasses.

"It is a rare honour."

Jason howled.

"Who the fuck are you?" He spat. "I don't want no part in any fucking project here!"

"I am Doctor Ramirez. And you should be very glad indeed that you are one of the few bastards chosen to take part in this project. It may even save your life."

Jason laughed, though there was no humour in the sound. He swept his gaze around the clinically white room, finding neither windows nor another door bar the one through which he'd entered. Whereas white units ran around the walls of the moderately sized room, the middle was empty except for the table on which he lay, heart hammering and mouth too dry for comfort. The guard's spittle cooled on his toes and he shifted his weight constantly, pressing his forehead down to the table if only so that he no longer had to look at the guard.

Dr Ramirez, however, did not require his attention to go about her work. Out of his line of sight, she busied herself preparing the vial with the specimen that would change the rapist's entire life. She smiled at the vial, holding it up to the light to check the condition of the fluid inside. The label on the side read 'EFC02' and nothing else.

Jason eyed her, trying to look as if he wasn't interested in what she was doing. Yet his eyes widened at the sight of the injector, which she held like a gun with her first two fingers loosely curled around the trigger and the 'barrel' of the compartment along the top of the device.

"What the fuck is that?"

"A JET injector," she muttered, filling the compartment with crimson liquid from a syringe. "Don't worry, you will shortly become quite well acquainted with it."

Taking a knife in her other hand, Dr Ramirez demonstrated her ambidextrous ability by slicing the jumpsuit and underwear neatly from his body. The tip of the knife nicked his thigh and Jason swore, shivering in the cool air. His balls and soft shaft hung loosely between his thighs, exposed and vulnerable as he closed his legs carefully behind them, for all the protection that would give him.

Dr Ramirez chuckled cruelly, levelling the JET injector at him.

"You'll warm up to what's happening. Or not. Either way, this is going to bite some."

Jason threw himself against his restraints with renewed vigour, screaming as spittle flew from his lips. Nothing he did, however, was ever going to stop the progress of the injector as it glided towards his exposed buttocks. The needle jabbed through skin and he howled, hands curled into fists as the pain seared, spreading out and out and out as whatever was in that compartment was injected into him.

The effects began swiftly. As Dr Ramirez stepped away, already filling the compartment with the contents of a second vial, Jason hunched his shoulders, breathing laboured as his skin tingled. Something was happening, yet he didn't dare turn his head to look - it would only make the moment all the more real. He squeezed his eyes closed, moisture gathering in the corners, though he would never have admitted to it aloud. Was it the lethal injection? He'd expected hanging.

His muscles tensed and he groaned deep in the back of his throat as his head hung down, legs spreading apart of his own accord. Something in the backs of his legs squeezed and pulled, lengthening as his body pushed itself up onto his toes. Jason screeched like a caged animal, clawing at the table as Dr Ramirez stood over him, observing the effects of the injection.

"What's happening?" He forced out raggedly, eyes wide and bulging. "What have you done to me? What the fuck have you bastards done to me?"

"Oh, nothing more than a rapist like you deserved. Would you like to see? It really is quite the show back here."

Collecting a mirror from the top of one of the units, she held it up and slightly to the side of Mallory's arse, which seemed to raise itself higher at the lure of the show. Craning his neck, the prisoner gaped at what should have been his backside yet no longer was. Red-brown fur, a short coat, prickled over his skin as muscle filled his cheeks, pulling them slightly apart to reveal an anus that should never have belonged to a human male. Gaping, he whimpered as his anus pulsed and changed, swelling into a round pucker and growing dark in colour, an animalistic taint wafting through the air.

"The fuck..." He shook his head. "I'm fucking imagining all of this, aren't I? You've gone and given me something to make me hallucinate."

Dr Ramirez laughed softly, painted lips curving up in a perfectly deadly smile.

"Not at all, Mallory. I wouldn't want you to miss a single second of your transformation." She clicked her tongue against the roof of her mouth. "Come now, eyes back on the mirror. Don't you want to see yourself become a mare?"

Mallory reeled, yet couldn't drag his eyes away as his balls pulled up closer and closer to his body, unnaturally close. It wasn't right! He shook himself, teeth chattering on the edge of shock as his mind refused to accept what was happening against his will. Balls sucking up completely into his body, he gasped, stomach churning, and arched his back as his innards remade themselves, a shockingly feminine slit pulling down a little below his new tail hole. His new sex - horrifyingly female - burrowed into his body, a passage forming as his crotch throbbed. He didn't know then that that was his body forming the ovaries he would need to breed.

Jason rolled his head from shoulder to shoulder, refusing to look as his body continued to change. And all the while that fucking doctor was right there watching him, watching every single moment of his abject shame! The tail sprouting from above his anus, bone protruding out from his spine, was the cherry on top of the humiliating cake as the man growled and thrashed, hooves scraping and kicking out.

"You can't fucking do this to me!" He howled, his sex plumping out into the undoubtedly teardrop-shape of a feral mare. "I have my fucking rights - this isn't right! You can't experiment on people like this! I know what you lot of fuckers can and can't fucking do! Let me the fuck go!"

Dr Ramirez smiled and shook her head slowly, the loaded JET injector in her hand.

"You no longer have any rights, Mallory." She smirked and tapped him on the rump, fingering his growing tail. "You were declared dead in the riot - the riot that you started. So what do you think anyone is going to do for a dead man?"

A line appeared in the wall opposite and Jason breathed raggedly as a door was revealed, sliding out from the wall as if it had been there the whole time, simply waiting for him to notice it. He growled and trembled, the prickle of hair creeping up his body as his back stretched out, fingers suddenly too thick and clumsy to use. He bucked, kicking out in panic, hardly aware that he was already falling prey to baser, equine instincts as the injection continued to change his body.

So concerned was he with the creeping transformation that it was a moment before the clip-clop of shod hooves on linoleum - not unlike the dull clack of flatter heels - begged his attention. A horse with a striking brown coat and long, flowing mane that shone jet black down the arch of his neck nickered and stretched out his head curiously, upper lip curling back from his teeth. Mallory shuddered from him, sucking in breath after breath through his nostrils. He could not have said how he knew that the horse was a male, only that his body throbbed at the sight of him, a plump sheath tucked up against his barrel, close to his hind legs.

The stallion pranced and nickered, tugging at the lead rope clutched between another lab technician's hands. The woman pressed her lips together and kept a tight grip on the rope as the stallion stretched out his neck, stealing a lick of the new mare's sex as his cock dropped, bobbing and flexing beneath his stomach.

"Easy there, Marwan, you'll have your fill of her soon."

The stallion snorted and pawed the floor, mottled grey and pink cock swinging and swaying, his intentions clear. Jason screamed.

"Just what the fuck is this?"

He screeched, or at least tried too. His lips bulged out, bones shifting in his face, too much for speech to be clear.

"Why are you doing this to me? Just what the fuck have I done?"

Dr Ramirez clicked her tongue against the roof of her mouth.

"Oh, many things, Mallory. Too many things to list right now. You have a stallion waiting for you."

Touching the JET injector to his backside again, she shot him with the second vial as his arms stretched down, flesh retreating from his fingers as they became hooves. The half-man half-mare being twisted and neighed in distress on the table, legs straining at the steel cuffs. Soon, those would have to be removed to allow her transformation to complete itself, but she'd find a stallion on her back soon enough.

"This will put you into season," Dr Ramirez explained the second injection for her own entertainment than his benefit. "Wouldn't want your new stud to be disappointed in you now, would we? You have many foals to bear for him."

Marwan, the stallion, tossed his head as if he agreed very much with Dr Ramirez. Buckling a head collar that seemed to appear from nowhere around the mare's nearly completely transformed head, the last shimmers of chestnut fur covering her muzzle, Dr Ramirez pursed her lips at the cuffs. They had to come off, or else her legs would break. And what good was a broodmare with a broken leg.

The new mare snorted and rolled her head, tail flagging mere seconds after that second injection. Her marehood winked and twitched, showing off her sex for the stallion as she became, in all ways, a true mare in season for him. She jerked her hindquarters towards him as the stallion snuffled at her rump, his human self screaming as he slipped further and further away from the broodmare he'd become, wanting to pull away as much as he wanted the stallion to take him, breed him.

"Easy now, girl."

Dr Ramirez patted her neck as she unlocked the cuffs, letting the equine's legs slide back off the table. Standing on all fours, she shook her head, mane flopping from one side to the other, and groaned as her forelegs lengthened, muscle rearranging itself along the long, fine limb. Sweat darkened her flanks and she swayed on trembling legs even as the impatient stallion mounted her. He didn't need any help to hit his mark, resting the majority of his weight on his hind legs as he jabbed several times and sank halfway into her virgin marehood.

"You're such a beautiful mare, Jason. A beautiful Arabian broodmare."

Squealing breathlessly as her new lungs heaved, the mare spread her hind legs apart for balance, eyes rimmed with white as her body thrummed with energy, her transformation complete. If the stallion had not already mounted her, she would have been winking and presenting her sex to him to demonstrate her readiness to be bred, but, as it was, Marwan required no encouragement. Snorting heavily over her neck, the equine nipped at her withers and bucked, driving in roughly as he stretched her cunt wide for the very first time.

The mare whinnied shrilly.

Grunting, the stallion thrust and bucked, tail flagged as he bred his new mare. He didn't need to know that she had only a short while ago been a man, a human like his handlers. All he knew was that the mare was in heat and it was his job to seed her needy cunt like all the other mares that had gone before. He snorted and groaned, sides reverberating lightly with the sound, as he thrust, taking his pleasure from the moment. But, as an animal driven by need, it was impossible to ask him to last longer for her pleasure, as good as his shaft felt sliding slickly through her twitching cunt, and do any more than his duty.

He bit her neck and squealed as he ejaculated, ramming up into her as deep as he could possibly drive, tail flagged proudly. The mare leaned back into him, head submissively lowered as she bore his weight, marehood twitching and pulsing around his fat girth as if subconsciously desiring to milk him for every drop of virile seed he had to offer her. His full balls swung, bumping into her rump, as if to remind her that he had more and more loads to fill her with. Marwan nibbled her neck tenderly, cock softening and drooping as he slipped backwards off her back, still drooling copious amounts of creamy cum.

Dr Ramirez wound the lead rope around her hand and smiled, letting the stallion nuzzle and lip the mare's rump playfully as his cock throbbed. Soon he would be ready for another round. It was always best to make sure a mare was impregnated shortly after her transformation, if only for her humiliation. And to make sure the transformation was permanent, of course.

"This is your life now...Amaya," Dr Ramirez said, rubbing the flat of her palm between the mare's eyes. "You'd best get yourself used to it."

'Amaya' snorted and lowered her head as the doctor grinned, self-satisfaction lining her features. Dropping her lead rope - she wasn't going anywhere - the doctor paced across the linoleum to the door, but, instead of leaving the room, picking up the phone from the mount on the wall. Dialling out as the mare nickered softly, Dr Ramirez tapped her nails impatiently on the handset.

"Phase one is complete, the test subject may undergo a second breeding to ensure stud satisfaction. Prepare and proceed with arrangements for transporting her to our testing facility and begin phase two, impregnation, as scheduled."

Casting the mare a look that told more than her words, she raised an eyebrow - not that Amaya could understand her anymore anyway.

"That's right, you heard me. You will be a broodmare forever, your punishment for your crimes." She scowled. "It's nothing less than what scum like you deserves. At least the stallions taking you will treat you better than you did those poor girls."

Sighing softly, Amaya blinked and lipped softly at Dr Ramirez' lab coat, not knowing what she had said. Human comprehension was beyond her and the mare nickered, butting her muzzle into the doctor's palm for treats that she knew had to be hidden somewhere.

All she knew now was the life of a broodmare.