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Grow, girl, grow

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Amy has always been flat chested, painfully so. She discovers an experimental cream on the dark web, claiming to produce the desired results. Her boyfriend Tyler certainly isnt complaining about rubbing his girlfriends chest every night ... are her bras getting tighter?

Chapter 3: Humiliation

The morning was a cage of fabric.

Amy woke to a deep, visceral ache, a feeling of being packed into her own skin. She tried to sit up and a weight—massive, warm, and unyielding—pressed against her ribs, her sternum, her throat. She gasped, flinging the covers back.

The sight was absurd. Her breasts, already monumental the night before, now dominated her torso. They rose like pale, veined hills, the areolas wide and dark as coasters, the nipples stiff and sensitive even in the still air. She swung her legs over the side of the bed and felt a new, heavy drag between her thighs. The shaft was thicker, a substantial column of flesh against her leg. The sac beneath was fuller, a tight, weighted pouch.

She stood, and the room tilted. The gravity was different. She had to consciously adjust her posture, shoulders pulling back to accommodate the forward mass. Waddling to the closet, she pulled on the largest, softest robe she owned—a man’s XL plush thing she’d stolen from Tyler. She couldn’t get it closed. The fabric gaped over her chest by a good six inches. The belt wouldn’t reach. She held it shut with one hand, feeling a spike of pure panic.

In the bathroom, the mirror told the brutal, thrilling truth. The triple dose had worked with vicious efficiency. Her slender frame was now a host for this abundant, grafted flesh. She looked like a rendering error, a concept art sketch where the artist got obsessed with one feature. She turned, seeing how her back strained under the new burden. Red marks, like the ghosts of seams, pressed into her shoulders from just the weight of the robe.

A text buzzed on the vanity. Sam.

Sore. Can barely lift my arms to brush my teeth. You?

Amy typed with her thumb, the other hand still holding the robe. Robes are officially a lie.

Sam’s reply was instant. A single emoji: 🥵.

Then: Want me to come over? Check the progress?

Tyler’s here, Amy typed. Day off.

Damn. Later.

The door to the bedroom creaked. “Ames? You alive in there?” Tyler’s voice, sleep-rough and warm.

“Yeah,” she called, her voice too high. “Just… getting ready.”

She heard his footsteps approach. There was no lock. The knob turned.

He stood in the doorway, shirtless, his blonde hair mussed. His easy smile faded as he took her in. His eyes traveled from her face, down the impossible expanse of chest she couldn’t conceal, to the strained fabric at her hips. The morning light from the hall window lit him up, highlighting the dumbfounded slackness of his jaw.

“Whoa,” he breathed. The word had no humor in it. It was pure shock. “Amy. What… what happened last night?”

“The cream,” she said, the lie thin and immediate. “It just… it had a stronger effect. I told you it was experimental.”

“A stronger effect?” He took a step into the small room, his gaze fixed. “Babe, that’s not stronger. That’s a different planet. Are you in pain?”

He moved toward her, his hands coming up, not in desire, but in a kind of medical concern. He gently pried her hand from the robe, letting it fall open. He didn’t touch her, just stared. His expression was a car crash of emotions—awe, worry, a flicker of fear.

“They’re hot,” he murmured, his palm hovering an inch from her skin. “Like, fever hot.”

“They feel… full,” she said, watching his face.

Finally, his hands settled on her, his big, calloused construction-worker hands that knew every part of her. But now they navigated a new geography. He cupped the undercurve, his fingers barely spanning half the width. He gave an experimental, gentle lift, and his forearm tendons stood out with the strain.

“Jesus Christ,” he whispered. “The weight. This isn’t safe.”

A flash of irritation cut through Amy’s anxiety. “It’s what I wanted.”

“Not like this,” he said, his eyes finding hers. They were serious, blue and clouded. “This is too fast. What if it’s a cyst or something? What if it’s… I don’t know, a bad reaction?” His thumb brushed a nipple, and she jolted, a bolt of sensation shooting straight to her core. He saw it. His concern momentarily warped into something else, a dark, interested heat. He’d always loved how responsive she’d become.

She saw the conflict in him, the caretaker wrestling with the boyfriend who’d spent months in a state of low-grade arousal. She used it.

“It’s not a cyst,” she said, softer, taking his wrist and guiding his hand to her other breast. “It’s the cream. It’s working. Feel.” She made him knead the flesh, made him feel the dense, uniform firmness. “It’s just growth. More of what we asked for.”

He was silent, working his hand over the new slope, his touch transitioning from clinical to fascinated. “And here?” he asked, his voice husky, his other hand sliding down over her stomach, past the nest of red hair, to the thickened shaft.

She gasped as he wrapped his fingers around it. His grip was familiar, but the girth he now held was not. He looked down, his eyes widening. “Holy shit, Amy.” He pumped once, slowly, feeling the new heft. “It’s like… a different person’s.”

“It’s mine,” she said, a possessive edge in her voice. She leaned back against the vanity, pushing into his touch. The worry, the panic, was melting under a wave of insistent, grinding need. The cream’s aftereffects were still in her blood, a constant hum. “It’s all mine. And I need you.”

That undid him. The caretaker faded, replaced by the man who’d been gleefully complicit in this from the start. He dropped to his knees on the bathmat, his hands moving to her hips, his mouth opening.

It was different. She was so much bigger, so much more present. He had to work, his jaw stretching, his hands bracing her thighs as she unconsciously thrust forward. The sensation was magnified, a feedback loop of intense pressure and electric sensitivity. She looked down, watching the top of his head, his blond hair between her massive breasts, and the image was surreal, debauched, perfect. Her fingers tangled in his hair, not guiding, just holding on.

She came quickly, violently, her cry echoing off the tiles. The force of it made her knees buckle. Tyler caught her, rising to hold her up as she shuddered against him. He held her, this gigantic, trembling version of his girlfriend, his hands spanning her bare back.

“We need to talk about this,” he said into her hair, his voice muffled.

“Later,” she panted, still riding the aftershocks.

“No, Amy. Now.” He pulled back, his face set. “This is going too hard. I’m not applying that cream tonight. Not until we figure out what’s happening.”

A cold trickle cut through the warm afterglow. “You have to. It has to be consistent.”

“Consistent with what?” he asked, frustration edging his voice. “The instructions from some sketchy dark web doctor? Look at you!” He gestured at her body, his movement almost angry. “I love it. You know I do. It’s fucking incredible. But it’s also scary. What’s the endgame here? Until you can’t walk?”

The question hung in the humid air. Amy didn’t have an answer. The endgame was more. It was always more. It was catching up to Sam, it was surpassing her, it was becoming something so undeniable that the old Amy vanished completely.

“One more jar,” she said, a negotiation. “We finish the current one. Slowly. Normal doses. Then we’ll talk.”

He searched her face, seeing the desperation she couldn’t hide. He sighed, defeated by her, by his own fascination, by the sheer physical reality of her. “Normal doses. And I’m watching you like a hawk. Any more pain, any redness, we stop and maybe see a real doctor. Deal?”

“Deal,” she said, leaning in to kiss him, using her body to soothe his doubt.

He kissed her back, deep and slow, his hands automatically rising to cradle her breasts, his thumbs circling her nipples. He was already addicted to the new scale of her.

Later, after he’d left to get groceries, Amy stood in front of the medicine cabinet. She opened it. The second jar was almost empty. The third and final jar sat behind it, unopened, its black-market label smudged and secretive.

She took out her phone. She texted Sam. Tyler’s spooked. Says we’re stopping after the last jar.

The typing bubbles appeared, lingered, then disappeared. They appeared again.

Sam’s reply was simple. Then we need to make the last one count.

Amy stared at the words. She looked at the jar in her hand. She thought about Tyler’s worried eyes, his gentle hands. She thought about Sam’s hungry ones, the sheer weight of Sam’s own progress.

She opened the third jar. The scent, sharp and chemical, wafted out. She dipped two fingers in, scooping out a large, glistening dollop.

She didn’t apply it. Not yet.

She carried it to the bedroom, sat on the edge of the bed, and held it in her palm, watching it glisten under the gray afternoon light. A final offer. A point of no return.

Her phone buzzed again. Sam.

I have an idea. For maximum absorption. A link followed. Amy didn’t click it. She didn’t need to. She could imagine what it suggested. Internal application. A more direct route.

The cream in her hand seemed to pulse with a cold, potential heat. The door was unlocked. Tyler was gone. Sam was waiting.

Amy closed her fingers, feeling the substance ooze between her knuckles. She made her choice.

She made her choice.

Her thumbs moved over the screen. Come over. Now. Tyler’s gone for hours.

The reply was instantaneous. On my way.

Amy didn’t move from the bed’s edge. The cream began to warm on her skin, a subtle biological heat seeping into her palm. She watched it, this unassuming ointment that had rebuilt her from the inside out. The sterile bathroom light glinted off its surface. When the doorbell finally rang, the sound was a gunshot in the quiet apartment.

Sam stood in the hallway, a canvas tote slung over one shoulder. Her eyes, wide and immediate, dropped to Amy’s robe, which still gaped open. “Oh, wow,” Sam breathed, not moving. “You really did a number.”

“You have no idea,” Amy said, her voice thin. She stepped back to let Sam in.

Sam dropped her bag just inside the door. It clunked, heavy. “I brought supplies.” She didn’t elaborate. Her hands were on Amy’s hips, turning her gently into the full light of the living room window. Sam’s scrutiny was clinical and ravenous. “The swelling is uniform. No dimpling. The skin integrity looks… good, actually. Strained, but good.” Her thumb traced the lower curve of Amy’s left breast, a feather-light touch. “How’s the sensitivity?”

“Everything is… a lot,” Amy admitted, shivering.

“Good.” Sam’s smile was all teeth. “That means it’s working at the nerve level, too. Not just tissue.” She finally looked up, meeting Amy’s gaze. Her own excitement was barely contained. “So. What’s the plan? One last glorious bash?”

Amy nodded toward the bedroom. “The plan is maximum absorption.”

Sam’s grin widened. She hefted her bag. “I had a feeling.”

In the bedroom, the air grew charged and still. Sam unzipped her bag, pulling out two long, silk scarves, the deep purple of a bruise. She held them up, letting them trail over her fingers. “For stability,” she said, her tone light, but her eyes were darkly serious. “To ensure… thorough, even coverage. You game?”

Amy’s heart hammered against her ribs, a frantic bird behind a wall of new flesh. This was a threshold. Sam saw the hesitation, the flicker of doubt that Tyler had planted. She moved closer, her voice dropping to a conspiratorial whisper. “He wants to stop, doesn’t he? He’s scared of what you’re becoming.” She let the scarf brush Amy’s collarbone. “Don’t let his fear shrink your world, Amy. This is yours.”

That was the key. The permission. The defiance. Amy took a deep, ragged breath. “Yes.”

“Lie down.”

Amy obeyed, settling back on the rumpled comforter. The weight of her breasts spread uncomfortably to the sides. Sam worked with a quiet, efficient grace. She looped one scarf around Sam’s right wrist, then the bedpost, tying a firm, non-slip knot. She repeated the process with the left, pulling the silk taut until Sam’s arms were stretched gently above her head. Sam tested the bonds, a slow, deliberate pull. The silk held. A flush spread across her chest.

“Comfortable?” Amy asked, her voice unfamiliar to her own ears.

“Yes,” Sam whispered, her breath already quickening.

Amy opened the third jar. The chemical scent bloomed, cutting through the lavender laundry smell. She scooped out a massive, glistening heap. It was cool and dense. She began at Sam’s collarbone, painting it onto her skin in broad, sweeping strokes.

Sam arched her back off the bed, a sharp gasp escaping her. “God, it’s cold.”

“Just wait,” Amy murmured, working the cream in circles.

She lathered Sam’s breasts, the existing fullness disappearing under thick, white layers. She kneaded it into the tissue, her fingers digging deep, following the instructions Sam herself had once demonstrated. The cream warmed rapidly upon contact, turning slick, almost oily. Sam’s skin began to pinken. A low moan vibrated in Sam’s throat as Amy’s thumbs circled her nipples, coating them, pulling them into tight, gleaming peaks.

“It’s… it’s burning now,” Sam panted, her hips shifting restlessly. “A good burn. Oh, fuck, Amy.”

The change was visible. A subtle, yet profound plumping began beneath the cream. The flesh grew denser, rising to meet Amy’s palms. Sam’s breaths became ragged, choppy pleas. Her back bowed, her body straining against the silken ties. The scent of the cream mixed with the salt-tang of sweat. Amy watched, mesmerized, as Sam’s pleasure crested, as her thighs trembled and her head thrashed side to side on the pillow.

As the climax hit Sam, a powerful, jerking release that made her cry out, Amy’s fingers dipped into the jar again.

She moved her hand down Sam’s trembling stomach, past her navel, through coarse hair.

“Amy, no,” Sam gasped, the words slurred with pleasure, her eyes flying open. “Not there. Don’t.”

Amy ignored her. She focused on the swollen bundle of nerves, already peeking from its hood. She massaged a thick, cold glob of cream directly onto Sam’s clit, working it in with two firm, relentless fingers.

Sam’s protest became a broken wail. “Stop, please, you don’t know what it’ll—”

But Amy was already scooping more. She slicked her own newly thickened shaft with the substance, the chill a shocking contrast to her heat. She positioned herself, not asking, not hesitating. She pressed inside in one slow, inexorable push.

Sam’s body seized around her, a tight, convulsing grip. Her pleas dissolved into guttural, meaningless sounds. Amy fucked her with a steady, deep rhythm, the slick slap of skin filling the room. She watched Sam’s face, the agony and ecstasy twisting her beautiful features, the raw transformation of her plea into surrendering bliss.

Afterwards, Amy withdrew. They both were slick, gleaming, panting. Amy looked down between Sam’s spread thighs.

Sam’s clit was visibly altered, swollen and plump, protruding persistently from its hood like a budding fruit. The skin around it was flushed a deep, vibrant red.

Sam followed her gaze, her eyes wide with a terror that was half thrill. “What did you do?”

Amy didn’t answer. She dipped her fingers back into the nearly empty jar. She began massaging another thick dose onto the sensitized, transformed flesh.

Sam whimpered, a frail sound. “Again?”

Amy started the process again. And again.

The rhythm was punitive, a cycle of cold application and searing reaction. Sam’s body became a laboratory of twitching nerves and shifting tissue. Her protests had long since melted into a continuous, low keening. Amy’s own fingers were numb from the cream’s peculiar chill.

She finally stopped, the jar scraped utterly clean. She sat back on her heels, breathing hard, watching Sam shudder through the aftershocks. The room smelled of sex and sharp chemicals.

Sam’s clit was no longer a clit. It was a pronounced, smooth protrusion, thick as Amy’s thumb and just as long. It glistened under the bedroom light, a proud, swollen evidence of what they’d done.

“Look at you,” Amy whispered, her voice ragged.

Sam strained against the silk scarves, lifting her head to stare down the length of her own body. Her eyes, glassy with spent pleasure, widened in horrified fascination. She tried to speak, but only a dry click came out. She swallowed, hard.

“It’s… it’s not stopping,” Sam finally managed, her voice a cracked whisper. She could feel the thrum, the deep cellular itch continuing to radiate from that central point. A slow, relentless expansion was still underway. “Amy, it’s still growing.”

Amy nodded slowly, a strange, cold calm settling over her. She reached out and traced the hyper-sensitive length with a single finger. Sam jerked violently, a fresh wave of sensation swamping her.

“I know,” Amy said. “The cream has a cumulative effect. The more you use a zone, the more it… learns. The more it wants to change.”

“You knew?” Sam’s head thumped back against the pillow. “You knew and you just… kept going?”

“You liked it,” Amy stated, simply. It wasn’t an accusation. It was a fact written in the sweat on the sheets.

Sam didn’t deny it. She closed her eyes, a tear tracing a path through her temple into her hairline. It wasn’t a tear of sadness. It was one of sheer, overwhelming saturation. “What now?” she breathed.

Amy untied the silken bonds. The fabric slipped away, leaving faint red lines on Sam’s wrists. Sam brought her arms down slowly, groaning at the ache in her shoulders. She didn’t cover herself. She lay exposed, transformed, waiting.

Amy leaned close, her lips near Sam’s ear. Her voice was low, devoid of its earlier heat, leaving only a flat, serious tone. “Here’s what now. You have a choice.” She paused, letting the silence thicken. “You need to tell me another body part. Somewhere else you want this to go. Right now.”

Sam blinked, confused. “What? Why?”

“Because the process is craving a new vector,” Amy explained, her words clinical. “It’s focused there,” she gestured between Sam’s legs, “but it wants to branch out. If we don’t give it intentional direction… it’ll find its own.”

A cold knot of fear tightened in Sam’s stomach. “What does that mean?”

Amy’s hazel eyes were unblinking. “It means the residual energy in your system will likely default to the closest analogue. To what I have.” Her gaze was unwavering, a solemn promise. “If you don’t pick something—your lips, your hips, your ass, your thighs—you’ll be joining me as a fellow huge dick girl. And once it starts, we can’t stop it. Not until the compound exhausts itself.”

The ultimatum hung in the air, brutal and final.

Sam’s breath hitched. Her mind, fogged with pleasure and chemical alteration, raced. She thought of Amy’s substantial shaft, the weight of it, the sheer presence. A part of her, the deviant core she’d always nourished, flared with immediate, shocking interest. The image was obscenely appealing.

But another part, a newer, more fragile part, recoiled. That was Amy’s change. Her territory. To have the same would be to surrender, to become a copy instead of a counterpart.

She looked at Amy’s face, so close to hers. She saw no malice there, only a stark, terrifying honesty. This was the consequence. This was the price of the game.

“My lips,” Sam blurted out, the decision tearing from her before she could second-guess it. Not her hips, not her ass—something central, something she could see and feel every second. Something that would change her face, her kiss, her very expression. “Do my lips.”

A slow smile touched Amy’s mouth. She leaned back, appraising Sam’s face. “Yeah,” she said, almost to herself. “That’s a good one.”

There was no cream left in the jar. But that didn’t matter, Amy realized. The compound was in Sam’s bloodstream now, a guided missile waiting for coordinates. The application was just a ritual. The intention was the trigger.

Amy dipped her own thumb into her mouth, wetting it thoroughly. She brought it to Sam’s mouth, which was parted in anticipation. She didn’t apply it to the surface. She traced the pad of her thumb over Sam’s lower lip, then her upper, a slow, sensual smear of saliva.

“Think about it,” Amy murmured, her voice a hypnotic thread. “Think about the fullness. The weight. The sensitivity. Every word you speak, every sip you take. Imagine them heavy, soft, undeniable. A permanent pout. A perfect, swollen kiss.”

Sam did. She closed her eyes, chasing the thought. She focused all her will, all the strange energy buzzing inside her, towards her mouth. She imagined the flesh thickening, the vermilion border expanding, pushing outward. She willed the change to go there, to leave the other, thrilling possibility behind.

For a moment, nothing.

Then a distinct, buzzing tingle began at the curve of her Cupid’s bow. It spiraled outwards, a wave of pins-and-needles that was neither pleasant nor painful, but utterly strange. It deepened into a profound, internal pressure, as if her lips were being inflated from within.

She opened her eyes, her gaze locking with Amy’s. “It’s happening,” she breathed, the words already feeling different as they formed against her teeth.

Amy watched, rapt. She saw the change in real time. Sam’s lips, already full, began to swell. They didn’t just grow larger; they blossomed. The defined bow softened, then pushed forward into a plump, dramatic curve. The lower lip became a lush, heavy shelf. The color deepened to a bruised, ripe red.

The pressure built, crested, and then stabilized into a warm, throbbing fullness.

Sam raised a trembling hand to her face. Her fingers touched the new softness, a foreign and fantastic landscape. She pressed, and the sensation echoed through her, a deep, resonant sensitivity that made her gasp. The gasp made her new lips part, and the feeling of air moving over that heightened surface was electric.

A laugh bubbled out of her—a disbelieving, giddy sound. She looked at Amy, her eyes shining with a kind of mad triumph. “Oh my god.” The words were slightly muffled, shaped by the new flesh. “Amy, they’re so… big.”

“I know,” Amy said, a genuine grin spreading across her face. She leaned in, her own body aching in sympathy, in shared obsession. “How do they feel?”

“Incredible.” Sam’s tongue darted out, tracing the new inner seam of her lip. The touch was a miniature revelation. “They feel… expensive. Like I’m always ready to be kissed.” She laughed again, the sound richer, somehow more sensual. “I can feel my own pulse in them.”

She sat up, the movement making her new weight swing and settle. She looked down at her altered body—the massive, veined breasts, the startling protrusion between her legs, and now this lavish, smiling mouth. A mosaic of her own deepest, darkest wants.

The fear was gone. In its place was a boiling, radiant euphoria. She relished it. She reveled in the sheer, outrageous fact of her own transformation. She cupped her breasts, hefting their impossible weight, then brought her hands to her lips, feeling their stunning softness.

“I want a mirror,” Sam said, her voice thick with desire and wonder. “I need to see all of it together.”

Amy stood, offering a hand. “Bathroom.”

They walked, Sam’s gait unsteady, not just from the after-effects of pleasure but from the literal redistribution of her mass. They stood before the large, fog-streaked mirror, the sterile light humming overhead.

Sam saw a stranger. A glorious, excessive, fantastical stranger. Her athletic frame was now the foundation for something sculptural and obscene. Her face, once classically beautiful, was now a portrait of voluptuous hunger. Her new lips dominated her expression, promising a world of sensation.

She turned, looking at her profile, watching the heavy curve of her breast, the dramatic shelf of her lip. A shiver of pure, unadulterated joy raced through her.

“It’s perfect,” she whispered to her reflection.

Then she turned to Amy, her eyes alight. The tension between them had shifted, mutated. It was no longer just about exploration or one-upmanship. It was a shared covenant, written in altered flesh.

“What’s next?” Sam asked, her plush mouth curving into a smile.

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