Chapter 3: Rising Action
Sarah feels a shudder crawl through her body, an anxious tremble that starts at the base of her spine and reverberates up through her ribs like a ripple across the water's surface. Her skin tingles, anticipation suddenly creeping through her like ivy, snaking up her spine as she struggles to remain in control.
She is trapped within this confounding phenomenon, her mind racing to identify what is happening to her. Everything is an enigma, a riddle she can't quite seem to solve.
The bridle, the change in her body, and the tremors that have taken control of her hands. She tries to keep her breathing steady, but with each sharp intake of air, her chest rises, fighting against the confines of the leather straps that are tied around her neck. The trembling in her hands spreads, stiffening her fingers, making the slightest motion rife with challenges.
Sarah stares at her hands as they change right before her eyes.
Her fingers stretch, elongating at least two inches, and her human nails morph seamlessly into rounded hooves. Thick, dark fur sprouts along the backs of her adversely mutating hands, spreading rapidly up Sarah's arms, coating them in a layer of soft, dense hair.
Small white hairs peek through the cuffs of her shirt, standing in stark contrast against the red fabric. Sarah gazes at her body in fascination and terror but finds herself unable to tear her eyes away.
Panic rises in a tidal wave, primal fear urging her to fight or flee as her heartbeat quickens. Squeezing her eyes shut, Sarah tries to regain control, focusing on her breathing – deep, steadying breaths in and out, ignoring the pressure dangerously increasing from the bit between her teeth.
She tries to calm herself, but as her body continues to warp and twist, the constriction of her human clothing causes beads of perspiration – or perhaps sweat from her human side – to roll down her forehead. In that moment, as if on cue, Sarah hears the squeak of the barn door as it slowly reveals Lydia's figure, backlit by the fading sunlight beyond.
Lydia's eyes widen and her jaw drops as she takes in Sarah's rapidly changing form. Her friend's once-slender arms were now splayed out with powerful, sinewy muscles, grotesquely thick and exaggerated, making her human skin seem almost translucent. The buttons of Sarah's shirt pop off one after another, as her expanding torso marches towards an unspeakable evolution.
The air grows thick with the scent of sweat and musk as her body continues to meld and change, ripping at the clothes that restrain her form. Her flushed skin glistens under the flickering stable lights, while Lydia stands frozen, her mouth agape in sheer fascination.
"Sarah, what the fuck is happening to you?" Lydia whispers, her voice trembling in the overwhelming silence of the barn.
Sarah wants to respond, to beseech her best friend for help, but instead, all she can do is whinny again, pants heavy and staggered from amplifying fear as well as the increasing sensation brought forth by her transformation.
The sharp edges of the bridle begin grinding into her skin, as though in response to her entreaty. Her flesh tears and molds, stretching to fit her modifications. The whinny brought forth accompanied by a tremendous pulsing cannonade of effort emanating through every sinew, vein and nerve of her changing physique. Her headache amplified as her face’s length and width expanded drastically, her cheekbones lengthened, and her muzzle jutted out before mercilessly stretching her lips apart only to expose her horse teeth.
Sarah's gaze dropped down to her upper body, quivering as the distinct lines of muscles emerged to dominate her feminine figure. Her shoulders became impossibly strapping and broad, and tapered diagonally down to a constricted waist.
In a wrenching instant, her pectoral muscles morphed into distinct, robust pectorals that held pricked nipples on top. Her spasming belly muscles rippled, accentuating the size of her core and abdomen.
Before Lydia's gaping eyes, Sarah winced as her chest heaved, the mounds of her breast rapidly growing. Lydia watched with furrowed brows, unsure of what to make of the scene unfolding before her. As a medical student, she knew that hormonal surges could cause many changes, but this—this was unprecedented. Sarah's body continued to shift without a hint of inhibition or restraint—it was indeed a metamorphosis.
The transformation brought with it a heightened sense of arousal that Sarah could feel through every nerve ending. She could feel the dampness between her legs growing, her clit swelling and throbbing with an insatiable hunger. The bridle now dug deeper into Sarah's mouth, forcing her lips apart as it revealed her new horse-like teeth and the glistening wetness of her prey-like tongue.
Lydia stood motionless, watching Sarah's transformation in awe.
Her gaze drifted downwards, settling on Sarah's now exposed groin. Shock washed over her as she realized that Sarah's most intimate region had begun to take on a life of its own, changing in tandem with the rest of her body.
Unlike Sarah's alterations above the waist, her lower half had become even more pronounced and feminine. Her thighs thickened, rippling with muscle, while her lower belly plumped up slightly, culminating in a plush, ample mound. Her pussy had become almost swollen, bursting with an embarrassingly primal, animalistic desire that forced itself upon her in this moment.
Lydia focused her gaze on Sarah's clitoris, utterly captivated as it engorged and elongated before her eyes, taking on a shape and size unlike any she had ever seen.
"Shit, Sarah," Lydia breathed, the words like a prayer as she stepped closer, magnetically drawn to the species-defying entity that protruded from her friend's swollen labia.
"I-I don't..." Sarah whinnied weakly, her muscular chest heaving as her equine heart raced with animalistic lust. "I don't know if we should..."
"Do you want me to stop?" Lydia shot back, the hand she extended towards Sarah trembling with desire and uncertainty.
"I-I don't want to stop," she admitted, lust lacing her every word as Sarah whinnied again in response, her teeth gnawing helplessly at the bit that had become a part of her very identity.
Their eyes locked again, the intensity between them crackling like a live wire. They were no longer just Sarah and Lydia, and they were not in the barn anymore. They were two beings entwined by fate, locked in a dance as old as time.
Sarah refused to borrow away from Lydia's gaze, her eyes watering with an intense and unexpected pleasure as her clit continued to protrude further. With every passing moment, it hardened and elongated, taking on a mind of its own. The immense surge of passion that had been slowly building within her veins threatened to explode, a potent and explosive concoction that sparked against the sides of her consciousness. The pressure in her loins grew heavier, the very essence of her physical being begging her to give in to a euphoria she had never experienced before.
Lydia, enraptured by the sight before her, felt a curious ache manifest within her core; her hand involuntarily moved towards her own quivering mound, oblivious to the sticky fluids that now stained her panties.
"Ahhh," she whimpered, incapacitated by the lust that surged through her. Her fingers absent-mindedly worked her clitoris under her pants, desperately praying for release.
"Fuck, Lydia," moaned Sarah, rocking her pelvis as the metal bit between her teeth pressed painfully against her gums. She yearned for friction, for a connection, for an earth-shattering climax to satiate the immense need that had obnoxiously intruded upon her body.