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Trespassers Will Be Punished

© Cederwyn Whitefurr

15th October, 2021

All Rights Reserved.

Catherine slipped under the triple wire fence, then crept like a wraith across the empty paddock. With only a hint of moonlight, just enough to see where she was going, she made her way to the stables.

Thoughts of what she was about to do filled her young mind, as she smiled to herself. Catherine had staked out this horse stud for months. Watching the horses through binoculars from the roadside, she'd spent months planning her illegal trespass onto the property. Summoning her courage, she'd finally chosen this pleasant spring night, to fulfil a fantasy she'd long held. She would breed herself to the stud chestnut...

Her target seared into her mind, wearing mottled long pants and shirt, Catherine moved with intent and purpose to the stables where she knew the horses were kept. Quiet as a mouse in a church, she slipped the catch of the door and eased it open. Quietly, the stable door opened without a noise – its well oiled hinges allowing her to slip inside and quickly close it behind her.

Smells of manure, straw, feed and the sweet scent of horse flesh assaulted her nostrils as she heard the horses awaken almost instantly, a few of them nickering at her and one or two outright whinnying loudly. Her heart in her mouth, she glanced over each stable door in turn, searching for the one she had her heart set on – that gorgeous chestnut stallion she'd seen.

Finally, she found him at the furthermost stall, separate from the others. He lifted his head over the stall door, his ears back and nostrils flaring as he glared at the human woman who quietly crept towards him.

“You're so beautiful up close..." Catherine murmured.

He sniffed at her, then snorted and stamped a hoof, before flicking an ear at her as if he cared little for her flattery – or even her presence. Catherine felt her loins growing warm with her arousal, her breasts beginning to ache as she reached out and held her fingers to his nostrils.

He snorted, then frowned and sniffed her fingers again, before he twitched and lipped at them, his tubular ears snapping forwards as he smelt the scent of an aroused mare.

“Yes beautiful stud, breathe deeply..." Catherine whispered as the stallion obviously become quite interested.

He snorted and stamped a hoof again, before tossing his head and shuddering, the scent almost driving him mad with the urge that filled his mind. Unlatching the gate, she slipped into his stable and closed it behind her, before the stallion snorted and nudged her hard enough to make her slam against the stable wall with a loud thump.

“Woah, easy!" Catherine gasped, as he bit at her, his large blunt teeth snapping together.

She didn't need the moonlight to tell he was aroused and eager – she could hear the slapping from beneath his belly and smell the strong scent of his pre-ejaculatory fluid that spurted between his front legs. Catherine giggled softly as she quickly shed her shirt and the pants followed, carelessly dropping them in a corner as the stallion nickered and stamped his hooves.

“Alright, now, let's take this easy and carefully...I'm not a mare you know, so..."

Catherine knelt down before him and the stallion nickered again before he felt her fingers pressed against his nostrils again. That scent worked a treat on him and he flinched, his eagerness obvious. Quietly, Catherine brushed down his left shoulder and slipped beneath him. She felt the firm length of the stallion between her back and his belly, before she sighed and awkwardly reached up and back, wrapping her fingers around his medial ring.

At the touch, the stallion thrust against her fingers and Catherine gasped in surprise and more than a little fright. He wasn't a huge stallion – but he was still a stallion...and they were flighty and unpredictable at the best of times. Easing herself forwards, her groin aching with the suppressed urges and desires to claim him – she pulled him down until his length was between her thighs.

Again, he snorted and thrust, eager to mount this strange mare – why did she tease him so? She was receptive, he could smell it, yet she wouldn't...wouldn't...

Catherine carefully positioned herself, using one hand to hold his member firmly, the other bracing herself against the straw covered stable floor.

“Okay boy, nice and easy now..."

Catherine moved him up against her labia and the stallion trembled, skittishly dancing from one hind hoof to the other before Catherine took a few quick panting breaths and pushed back against him.

With a squeal, he took the initiative and thrust forwards, making Catherine gasp as he slammed her labia apart and his penile head and a third of his length thrust inside her.

“Urk!" Catherine hissed as the powerful thrust and unexpected mounting hurt worse than she'd imagined.

He whinnied and stamped his hooves, trying to thrust against this strange mare and claim her as his own, but Catherine pulled herself forwards, wrapping her arms around his strong front legs as she shuddered and gasped in fright and surprise.

He seemed to sense her discomfort, so he moved slightly and pushed forwards again, sliding himself to the medial ring inside of her before Catherine bit down on her lower lip to stifle her cries. As if satisfied, the Stallion trembled and powerful spurts of his pre-ejaculatory fluids spurted inside her, easing his mounting and her aching groin with its slippery warmth.

“Easy...boy - “ Catherine wheezed. “I didn't...expect you too..."

He snorted and pushed forward again and Catherine gasped as he slid himself as deep as he could – then without warning, his tail began to slash and flag as Catherine gripped his forelegs hard. He come in violent spurts, the hot, sticky semen flooding her womb and cervix, easing their unnatural mating more as Catherine gasped and hung her head. Pleasure mixed with pain as the stallion pumped her full of his seed until some of it spurted out of her and splattered on the straw.

“Fuck..." Catherine gurgled. “I never...expected..."

As suddenly as he'd mounted, the Stallion's length began to wilt within her. Whilst still larger than any human male Catherine had made love with – the stallion had pleasured her beyond anything she'd ever imagined. Her fingers fluttered over her clitoris as she felt him still semi-erect inside her, and in seconds – she reached orgasm, her powerful muscular contractions making him snort and almost instantly spring back to full arousal.

“Urgh...so... thick and...."

He snorted and thrust again, this time, there was barely any time to brace herself as Catherine felt him release within her again – even more of the thick, hot foal cream filling her to bursting point and causing her womb to feel like he'd surely burst her like a water balloon.

“So...fuck...fuck me stud...fuck me!" Catherine gurgled, as another orgasm, even more powerful than the previous, seared through her violated body.

He obliged, thrusting wildly – but the angle of their mounting and her being so forward, prevented him from fully sheathing himself within her. It mattered not, to his mind. This strange mare took his foal cream and he was certain she'd been well mated. He could smell her scent, feel her body contract and squeeze as he once again went semi-flaccid within her and he slipped out – a gush of the sticky semen squirting from her body to splatter on the straw beneath her.

Catherine gasped and trembled – she'd had stallions before – plenty of times – but this one...this one lit her sexual pleasure right off the chart! He had to have been trained to mate with a human woman, there was no doubt in her mind, as she collapsed to her knees beneath him and seemingly disinterested in her now, he stepped sideways and ignored the gasping and panting woman who'd just bred him.

*

Catherine, when she was able, slipped back into her clothes and weak kneed, crept from the stables and back across the field. Every step nearly made her knees crumble beneath her and she felt the copious amount of the stallions semen still inside her. It caused her lower stomach to bulge out – so full was she, she dared not relax her vaginal muscles as she knew what'd happen.

Sexually conquered and pleasured beyond her wildest imagination, Catherine walked home and fell into her bed, weak, exhausted and her mind swirling.

“Such...a stallion..." Came her sleepy thoughts, before her mind switched off completely and she lapsed into a deep, exhausted sleep...

*

Next morning, Catherine gurgled and moaned, her fingers aching like they were cramped.

“After what I did last night..." Catherine moaned. “I'm surprised I can..."

Something wasn't right...

Something was wrong with her legs...and something else lay beneath her, causing increasing pain as it was crushed against the bed on which she lay. Her eyes widened in horror and disbelief, as she looked at her fingers. Fingers which now ended in short, blunt hooflets, a pale white fur like gloves spreading from the hooflets to mid-way up her wrists. Beyond that, chestnut fur ran up her arms at an ever increasing rate.

“Nnnnngh..." Catherine squealed, then her hands which become paws, slapped at her face.

She felt the bones of her face writhe and reshape themselves – pushing out into the unmistakable...

NO – its not possible! Catherine's mind screamed at her.

Kicking away the sheets that covered her, she found her feet had turned to hooves, the chestnut fur running like wax up her pale white legs, legs that were now slender and equine in appearance, white socks from the coronet band of the hoof to her knees. Chestnut fur spread from her knees to her groin and even now, rippled and sprang from her human-like skin, covering and replacing it.

Falling out of bed, Catherine squealed – more a whinny than anything human anymore – and she dragged herself across the carpet, feeling the knee length tail behind her.

No, no, its not...it's impossible..I'm not...

In the full length mirror, Catherine's eyes widened and her muzzle fell open. Staring back at her was the face of an equine – the chestnut fur spreading down towards the broad nostrils and velvety nose – which still retained human-like skin colouration. As she stared, the chestnut fur covered her muzzle and her mouth hung open in horror and disbelief. A golden forelock and mane ran down over her shoulders as she twisted about and gripped her rump in both paws, lifting the pale golden tail to stare horrified at what had happened to her.

Where once her anus and labia should be – was now the puckered anus of a mare – the long slit of the labial folds with the tight muscles top and bottom of it – as she stared horrified, the labial muscles winked like a in-season mare, revealing the sensitive clitoris at the bottom and the rippled vaginal walls that closed and squeezed.

I'm not...I'm dreaming, this has to be a... Catherine's mind screamed in disbelief and horror, refusing to acknowledge what her now widely spaced eyes were telling her.

She could feel the tubular ears on top of her head and she clutched at them and pulled until she squealed in agony. Turning back around, she watched the chestnut fur spread up her belly towards her still human-like breasts, before they vanished beneath the chestnut fur.

Her mouth hanging open, it was all she could do, as she looked back I the mirror to see the last of the transformation sweep away any last vestiges of her humanity, a soundless cry coming from her throat as she stared at the anthropomorphic mare that looked back at her from the mirror...

*

Compulsion drew her like a halter around her head, back to the farm where she'd fulfilled her fantasy with that stud. As she crossed the fence, she gasped and felt herself convulse and moan as her fingers fused together to form another pair of hooves and her body hunched over until she could only stand on all four hooves.

Laying there on the dew wet grass, panting and shaking, she become aware of boot steps approaching before she blinked away the tears in her eyes and looked up to see the angry expression of a human rancher approaching her. He carried a halter and a lead rope, his face wreathed in disgust and apathy.

“So you're the one..." He growled, as he knelt down and affixed the halter around her head, then clipped the lead rope to it. “Well mare, lets get a look at you then..."

Catherine whinnied and pulled back against the rope, but he just snarled and smacked her on the shoulder.

“Uh huh, none of that missy! I won't have a new mare trying that on! You hear me? It won't stand! Now, stand up and stop acting like a foal!"

Something in his voice compelled her and she stood, ears flat but making no aggressive movements. He walked around her, forced her to pick up all four feet before he checked her over from head to tail – then lifted up her tail and took a good long look.

“Never foaled, by the look of you, but you're no filly – I know that for truth..."

Catherine squealed and stamped a hoof in indignation and outrage. Her eyes shone with fear and confusion, whilst her still rational mind screamed in fright and disbelief.

“You really should have thought twice about trespassing missy! Still, you seem to be a pretty enough mare – next season we'll find out if you're worth breeding from or if you'll be sent to the livestock markets! Might make some little girl a nice riding horse...of course, you'll have to be broken in and trained, but you're still young...there's time..."

He began pulling the rope and when she balked, he slapped her again.

“Move your tail hussy, or I'll break you in here and now, you won't be the first upstart mare I've had the pleasure of breaking in – there's two ways it'll go...you submit and behave. Or... it'll go the other way."

Catherine stared at him, her ears flat against her skull as she pondered and then shivered and hung her head, meekly following him.

“I figured you'd see it my way..." He grinned, as he led her back to the stables. “Now, lets see just how good a mare you really are, shall we?"

Catherine's eyes widened as she smelt the scent from him, and her equine brain made the connection between what he'd said – and what he was going to do to her...

“One last thing – you'll need a new name. I don't know your old one, I don't care. From now on? You'll be called Heather – for that beautiful flaxen mane and tail of yours. Now, come along, I got a lot of mares that need serving – you'll be the first for the day...Behave yourself and I'll stay as I am...misbehave?"

He fixed her with a baleful glance and a smile spread across his face.

"Misbehave - and I won't wait until you come into season... my son enjoyed your little daliance last night missy - but let me promise you, he's only a colt... I'm a real stallion..."

END