Chapter 1: Growing Pains
The bathroom gleamed under the harsh, unforgiving light of the triple-headed vanity. Steam from the shower clung to the mirrors, blurring the edges of the reflection, but Ana didn’t need clarity.She saw what mattered.
She raised an arm, curled her hand into a fist, and flexed. The biceps rolled into a hard, distinct peak beneath skin that felt stretched taut and new. A roadmap of veins she’d never known she had pushed against the surface.She held the pose, breath held, studying the slope and curve. Two months ago, this arm had been a soft, unremarkable thing.Now it was a fact. Her new fact.
Her gaze dropped, traveling past the dense deltoid to the swell of her chest. The sports bra she’d worn all day was a prisoner of war, strained at the seams, the fabric digging into the pale flesh of her shoulders.The cups were laughably insufficient. She’d gone up two sizes since starting the regimen, and the pills. Her nipples, visible even through the thick material, were perpetually hardened points, sensitive to the brush of cotton, the whisper of air.With a slow, deliberate exhale, she relaxed the arm. The muscle didn’t vanish; it just settled, a dormant power. She grabbed the hem of her tank top and pulled it over her head, the movement requiring a slight, conscious negotiation with her newly broad shoulders. Then, fingers hooking under the band of the sports bra.The release was a relief and a revelation. Her breasts spilled free, heavy and full, the areolas darker, wider than before. She cupped one in her palm, testing the weight.It was a pleasant, anchoring heft. The other hand traced the line of her abdomen, over the faint suggestion of obliques, down to the waistband of her leggings.She pushed them down her hips, stepping out of the puddle of fabric. In her plain cotton panties, she paused.The most profound change was hidden, confined. It required care. She hooked her thumbs in the elastic and eased them down, moving with the caution of someone handling a live wire.
Freed, her clitoris, engorged and persistently prominent, throbbed softly against the cool air. It was no longer just a hidden nub; it was a small, firm protrusion, a fleshy exclamation point that made ordinary underwear a torment. She didn’t look at it directly in the foggy mirror. Some acknowledgements were purely tactile.She slid the shower curtain back, a plastic rustle, and stepped into the tub. The water, when she turned it on, was near-scalding. It hit her shoulders first, a blunt-force massage, then streamed over her scalp, her face, her neck, running in rivulets down the canyon of her spine, over the perfect hemispheres of her ass. She tipped her head back and let it roar over her.Her hands began their nightly survey. Over the trapezius muscles, knotted and hard.Down the ladder of her vertebrae. Across the roundness of her glutes, firm as polished stone.Everywhere, the feedback was of density, of resistance. She was filling her own skin, surpassing its old boundaries.
Her palms came to rest on her breasts.They were almost hot under the water. She brushed a thumb over a nipple and felt the jolt straight through to her core, a live connection. Her other hand drifted lower, past the soft plain of her stomach, through the coarse, wet hair.Her fingers found the familiar, altered terrain. Her clit was slick and hard, a concentrated knot of sensation. She didn’t circle it, not yet. She just held it between two fingers, feeling its pulse sync with the hammer of her heart.This, too, was part of the change. The pills didn’t just build; they awakened. They wired every new muscle fiber, every stretched centimeter of skin, back to a central, buzzing switchboard between her legs.She started to move her fingers, a slow, building rhythm. Her other hand kneaded her breast, the pleasure layering, cross-pollinating. The image in her mind wasn’t of a lover, or a fantasy. It was of the mirror in the other room.Of the shoulders that now blocked doorways. Of the way her old jeans had split at the thighs last week. Of the vertical pencil mark on the doorframe in her bedroom, the one she’d made last night, standing tall, feeling her spine stretch, the top of her head a clear half-inch above the mark she’d made at the start of this. Outgrowing herself.Her breath hitched.The water pounded down.The pleasure was different now. Deeper, less sharp but more pervasive, rooted in the very architecture of her. It wasn’t just a release; it was a celebration of occupancy.Of claiming.
A climax built not as a spike, but as a wave—a warm, deep surge that seemed to originate in her swollen clit and radiate outwards, flushing her skin, tightening every new muscle in a delicious, full-body contraction. Her throat opened in a soundless groan, her head falling forward against the cool tiles.
She stayed there for a long minute, panting, as the water began to cool. The afterglow was a humming satisfaction in her bones.She turned the shower off. The silence was immediate, broken only by the drip-drip from the showerhead and the heavy beat of water from her body onto the plastic tub floor.She reached for a towel, the thick cotton rough against her sensitized skin. As she wrapped it around her torso, tucking it just under her arms, her phone buzzed on the vanity.She wiped a clear streak on the mirror. Her face looked back, flushed, eyes dark and sure. Below, the towel barely contained her chest.
Below, the towel barely contained her chest. She reached for her phone, her thumb smearing a wet streak across the screen. A message notification glowed: Sarah 💕.So?You alive over there? Paying my gym membership with my eyeballs.Progress pics or it didn’t happen.A slow smirk spread across Ana’s lips. The steam, the afterglow, the sheer undeniable fact of her body in the mirror made her bold.She flipped the camera to front-facing, angling the phone down. The towel was tucked, but just barely. The curve of a breast swelled into the frame, water droplets glittering on the skin. Lower, the angle captured the taut plane of her stomach, the V of her hips, and—because the towel’s edge stopped right there—a shadowed hint of the dark thatch of hair below, the prominent outline beneath it unmistakable if you knew what you were looking at.Cheeky.Revealing.More than she’d ever sent.
Her thumb hovered for a second over the send button, a flicker of old hesitation.Then she pressed it. The swoosh sound was final.
The week passed in a hot, sweating, aching blur. Her world narrowed to the grating of iron plates, the smell of chalk and stale protein shakes, and Jack. Her massive bodybuilder boyfriend, with his cannonball delts and tree-trunk legs, seemed to possess a newfound, frantic energy. He pounded into her nightly, his hands gripping her widening hips, his grunts echoing in her ear. But now, when her hands clutched the headboard, she wasn’t just feeling his strength.She was feeling her own. The firm shelf of her back muscles resisted his thrusts. The squeeze of her thickened thighs around his waist made him groan louder. She could feel the gap in their musculature shrinking, her body becoming less a soft receptacle and more a matched, opposing force. The realization sent a jolt through her that had nothing to do with him.
On Friday morning, staring at the orange bottle of unlabeled capsules on her sink, she didn’t hesitate.She shook out two. Then, after a pause, two more.Double the dose.The capsules stuck in her throat, a dry, chemical promise.
Saturday night, she stood before her closet.Nothing fit.Not in the old way. Dresses strained across her back and chest.Jeans?A joke. She settled on a pair of black leggings that confessed every new curve and a dark tank top that showed off the cap of her shoulder, the round swell of her arm.She looked… formidable.Primed.
Sarah was picking her up for girls’ night in twenty minutes. Ana’s clit, swollen and sensitive even through her panties, throbbed in time with her heartbeat. The doorbell was going to ring, and the world outside her steamy bathroom was about to get its first, real look.
The doorbell rang, a sharp electronic bleat that sliced through the quiet of the apartment. Ana took one last look in the foggy mirror, at the stranger she was becoming, and went to answer it.
Sarah stood on the mat, her smile freezing, then melting into wide-eyed shock.“Holy fuck,” she breathed, the words escaping in a cloud of winter air. Her eyes did a rapid, scrambling inventory: the shoulders that filled the doorway, the tank top stretched drum-tight across Ana’s chest, the forearms that looked capable of crushing walnuts.“Ana. What the actual hell.”
“Told you I was making progress,” Ana said, her voice a low rumble that felt new too.Sarah reached out, poking Ana’s bicep. It was like poking seasoned oak.She laughed, a nervous, thrilled sound.“Progress? You look like you could deadlift a car. In, in, we’re going to be so late.”
The night was a blur of light and sound and stares. At the first bar, a guy buying a round turned and elbowed Ana in the back, mistaking her for another dude. His mortified apology died when she turned, her face all sharp planes and smirking lips, her chest undeniable.He bought their shots anyway, his eyes glued to the shelf of her pectorals. At the crowded dance club, Ana didn’t dance so much as occupy space, a solid, immovable monument around which other bodies flowed. Sarah watched, her initial awe curdling into a sharp, studious fascination. She saw how men looked at Ana—not with the usual leering entitlement, but with a kind of wary, hungry assessment. She saw how women looked too, their glances lingering, curious.“Does it hurt?” Sarah yelled over the music, leaning close. Her breath smelled of gin.“What?”
“The growing! Does it feel… like growing pains?”
Ana sipped her water—she’d switched hours ago, the pills didn’t mix well with booze.“It feels like… tightening. Like every wire inside me is being tuned, pulled tighter.” She didn’t mention the other feeling, the constant, low-grade hum between her legs, the way every shift of her new muscles against denim sent little sparks directly there.
Later, stumbling out of a rideshare, Sarah fumbled with her keys.“My place,” she slurred. “We need nachos. And to dissect whatever the hell is happening to you.”
Inside Sarah’s apartment, the overhead light was too bright.Ana’s head throbbed in time with her pulse. “Bathroom,” she muttered, already heading down the hall. “I’m gonna be sick.”
The bathroom door clicked shut. Sarah stood in the sudden silence of her living room, the nacho fantasy evaporating. Her eyes zeroed in on Ana’s purse, a small black crossbody discarded on the armchair.The curiosity wasn’t curiosity anymore; it was a compulsion.
She listened.The sink was running.Moving quickly, Sarah snatched the purse. It felt heavier than it should.She upended it onto the coffee table. Wallet, keys, a hairbrush, a single, ominous orange plastic bottle with no label. She picked it up, unscrewed the cap.The pills inside were a matte gunmetal grey, smaller than she expected. She shook two into her palm.They were inert, meaningless.Her phone was in her other hand. She snapped a picture of the bottle, then a close-up of a pill in her palm.For later.Research.
From down the hall, the sink shut off.
Panic, sharp and sobering, lanced through Sarah’s gin-haze. She wasn’t thinking of side effects, of dosage, of anything but the sheer, unfair density of Ana’s new form, the power in her glance, the space she commanded.Without another thought, she tossed the two pills into her mouth. They stuck to her dry tongue, tasting of chalk and chemicals. She grabbed her half-finished drink from the table, swilled the warm gin and tonic, and forced them down. A bitter trail scraped her throat.She shoved everything back into the purse, arranging it just so.She needed a distraction. “You alive in there?” she called, her voice too high. She went to the kitchen, poured two glasses of water, her hands only slightly shaking.
In the bathroom, Ana braced herself on the cool porcelain sink.She wasn’t going to be sick. She just needed a minute away from the questions in Sarah’s eyes.She looked at herself in the medicine cabinet mirror. Her face was flushed, her pupils wide.She felt gigantic in the small, tiled space.
Slowly, methodically, she unbuckled her belt, unzipped her leggings, and pushed them down her hips along with her panties. The fabric caught, as it always did now, on the prominent jut of her flesh.Freed, it hung there, heavy and undeniable.Four inches. A stiff, swollen shaft of her own flesh, thicker than her thumb, dusky red and veined.A cock-clit.The head was flushed a deeper purple, peeking from its hood. It was no longer just a part of her; it was an appendage.A truth. The sight of it, in the harsh fluorescent light, sent a conflicting current through her—a shockwave of alien horror followed by a deep, possessive thrill.This was the most profound change. The secret engine of all the others.She wrapped her fingers around it.The heat was intense. A few slow, experimental strokes and her knees nearly buckled, pleasure coiling up from the root.
A knock on the door.“Ana?I got you water. You okay?”
Ana’s hand flew away.“Yeah,” she called, her voice rough.“Fine. Be out in a sec.” She took a shuddering breath, pulled her clothes back over the impossible evidence of herself, and flushed the toilet for show.
When she emerged, Sarah was on the couch, holding out a glass of water. “You look… better,” Sarah said, her eyes a little too bright, a little too focused. “Drink up.”
Ana took the glass, her mind still in the bathroom, wrapped around the measuring tape of her own transformation.She sipped.The water was lukewarm. “Thanks.”
“So,” Sarah said, tucking her legs underneath her.“Those pills. Where’d you say you got them again?” Her tone was light, casual, but her gaze was a laser.