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Cumming of Age

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Jessica is a college student with a secret: whenever she cums, her dick grows slightly bigger. Eva, her roommate, is a gym bunny who dreams of growing huge.

Chapter 3: Rising Action

The dorm room was bathed in the soft, warm glow of the morning sun, filtering through the blinds and casting long, dancing shadows on the walls. The scent of freshly brewed coffee wafted through the air, mingling with the lingering smell of their passionate encounter from the night before. The room was a cozy haven, a sanctuary from the bustling campus outside, decorated with fairy lights and posters of their favorite bands and movies. The bed was a mess of tangled sheets and blankets, a testament to their wild night.

Eva stretched languidly, her muscles popping and cracking with the movement. Three months of GrowYourGirl, gyming, and sex had caused big changes for the girls, and today was measuring in time . She stood tall, her eyes reflecting her astonishment at the sight of her body in the mirror. Her muscles were massive, her breasts so large they strained against the fabric of her bra, and her 5'11 frame carried the weight with ease. Turning to Jessica, she saw her roommate standing in the doorway, her mouth agape.

"Holy shit, Eva. You're... huge," Jessica breathed, her green eyes wide with disbelief.

Eva smiled, her body tingling with pride and desire. "Thanks, Jess. You don't look so bad yourself," she said, her eyes tracing the lines of Jessica's muscular form.

Her roommate had grown as well, her once lithe frame now carrying an impressive amount of lean muscle. Her breasts were fuller, her hips wider, and her ass more pronounced. And, of course, her dick had grown considerably, now standing at a solid 8 inches, making her the perfect top to Eva's massive, eager bottom.

Jessica smiled, running a hand through her blonde hair, her green eyes sparkling with amusement. "Yeah, well, I guess GrowYourGirl really works for us, huh?"

Eva nodded, her blue eyes filled with excitement and anticipation. "It sure does. Look at us, we're massive. How tall are you now?" Jessica asked, her eyes tracing the lines of Eva's body, marveling at the changes that had taken place over the past few months.

Eva looked down at herself, her eyes reflecting her amazement. "I'm 5'11 now. Can you believe it? I've grown almost a foot in just a few months!" she exclaimed, her voice filled with a mix of disbelief and excitement.

Jessica stepped closer, her hand reaching out to touch Eva's bicep, her fingers tracing the hard, defined muscles. "And look at these. You're massive, Eva.

Your muscles are so well-defined, and your breasts... wow. I can't believe how much they've grown." Jessica's voice was filled with admiration and a touch of envy. She couldn't help but feel a pang of jealousy as she looked at Eva, her mind a whirlwind of conflicting emotions.

Eva grinned, her blue eyes sparkling with pride and desire. I mean, look at you. You've grown too. You're 6'7 now, and your muscles... damn, girl.

They're so much bigger now." Jessica's green eyes flicked to the mirror, admiring her own reflection. She had always been tall, but now she towered over Eva, her muscular frame carrying her new height with ease. Her breasts were full and round, her hips and ass more pronounced. And her dick... it was massive, a thick, veiny beast that stood at attention, ready for action.

Eva let out a low whistle, her eyes roaming over Jessica's body. "You're like a fucking amazon, Jess.

You're huge," Eva whispered, her voice filled with awe and admiration.

Jessica smiled, a slow, sultry smile that sent shivers down Eva's spine. She had always been drawn to Jessica's confidence, but now, seeing her roommate like this, she felt a surge of desire that was almost overwhelming.

"And you're not so small yourself, Eva. I mean, just look at you," Jessica replied, her voice a low purr.

Eva grinned, her eyes sparkling with mischief.

"So, what do you say we celebrate our growth spurt with a little... experiment?"

Jessica raised an eyebrow, intrigued. "What kind of experiment?"

Eva bit her lip, her voice dropping to a sultry whisper. "The kind that involves you, me, and that massive dick of yours."

Jessica's breath hitched, her body responding to Eva's words. She had never been one to shy away from new experiences, and the thought of exploring her newfound size with Eva was both exciting and terrifying.

"I... I don't know, Eva.

Are you sure you want to do this? It's not like we've ever... you know, done anything like this before," Jessica replied, her voice filled with a mix of uncertainty and excitement.

Eva stepped closer, her hands gently cupping Jessica's face, her blue eyes locked onto Jessica's green ones. "Look at us, Jess. We've grown so much, both physically and... emotionally. Don't you want to see how far we can take this?"

Jessica hesitated, her breath hitching as Eva's thumbs brushed against her cheeks.

She could see the earnestness in Eva's eyes, the desire that burned like a flame. She knew that Eva meant it, that she wanted this – them – as much as Jessica did. But the thought of taking things further, of exploring this new dynamic with Eva, still frightened her. I don't know if I can," Jessica admitted, her voice barely a whisper. She looked down at their bodies, her eyes tracing the lines of their muscled forms. They had grown so much, both physically and emotionally, and the thought of taking things further excited her. But it also terrified her. She had never fucked anyone in the ass before, but Eva had wanted it for some time.

There was something primal and intensely erotic about the thought of being taken that way, and now that she had grown to this size, the idea of feeling Jessica's massive dick inside her was almost too much to bear.

"Please, Jess," Eva whispered, her voice barely audible. She could feel the heat of Jessica's body radiating against her own, her skin tingling with anticipation. "I want this. I want you."

Jessica's breath hitched, her heart pounding in her chest as she looked into Eva's eyes. She could see the desire burning there, the need.

It was intoxicating, this power she held over her roommate. She had never felt this way before, never had someone look at her with such raw, primal hunger. It was both exhilarating and frightening.

"Are... are you sure about this, Eva?" Jessica asked, her voice barely above a whisper. She knew she should walk away, that this was a line they shouldn't cross. But the sight of Eva, her body flushed with desire, her eyes begging, was too much to resist. "Yes, I'm sure. I want this, Jess.

I trust you," Eva murmured, her voice barely audible. Jessica's heart pounded in her chest, her body humming with desire and anticipation. She felt a surge of power, of primal dominance, as she looked down at Eva. This was new territory for both of them, but Jessica couldn't deny the thrill of experimentation and the promise of intimacy that hung heavy in the air.

"Alright," she said, her voice low and steady. "Let's do this. But remember, we're in this together, okay?" Jessica needed to hear the words as much as Eva did, the reassurance of partnership in their exploration.

"There is ... another way we could celebrate. One that I think you would enjoy even more, my love." Eva wagged her eyebrows, biting her lower lip.

"Oh really? And what might that be, my oh-so-kinky amazon?"

Eva smirked, her green eyes glinting with mischief. "Well, I was thinking we could play a little game. A game of 'Make Jessica Cum'."

Jess's breath hitched, her body tingling with anticipation. "Sounds intriguing. What's the objective?"

Eva's finger traced the curve of Jess's decorated collarbone, her voice a low, teasing murmur. "The objective is to make you cum as many times as possible. Im going to tie you down, then use these huge muscles and breasts of mine to have my way with you. " Eva's voice was a low growl, her eyes locked onto Jessica's green ones. "You'll be at my mercy, and I'll make you cum over and over again until you beg me to stop. And the best part? GrowYourGirl will be there in your system. While you struggle and writhe it'll be active in your system." Eva's voice was a low, seductive growl, her eyes never leaving Jessica's.

"And... and that will make me grow bigger?" Jessica asked, her words coming out in a breathy gasp.

Eva nodded, her grin wicked. "Exactly. Every time you cum, you'll grow a little bit more. And I, my love, am going to make you cum so much, you'll be enormous by the end of the day."

Jessica's heart pounded in her chest, her body aching with desire and anticipation. She had never heard anything so erotic, so sinfully delicious.

The thought of being bound, of being at Eva's mercy, of growing with each orgasm... it was almost too much to bear.

"Jessica," Eva purred, her voice low and sultry, "are you game?"

Jessica swallowed hard, her heart pounding in her chest like a wild drum. "Yes," she whispered, her voice barely audible. "I'm game."

Eva's eyes widened in excitement, her grin wicked and hungry. "Good. Because I'm going to make you scream, Jessica.

I'm going to make you beg, and I'm going to make you grow. Let's get started."

Eva's voice was a low growl, her eyes dark with lust and dominance. Jessica's heart pounded in her chest as she took in Eva's words, her body already aching with anticipation. She couldn't believe she was agreeing to this, but the thought of being at Eva's mercy, of growing with each orgasm, was too much to resist.

Eva grabbed a couple of scarves from her bag, her eyes never leaving Jessica. "Hold out your wrists," she commanded, her voice firm and authoritative.

Jessica complied, extending her arms towards Eva, her heart pounding in her chest. She watched as Eva expertly tied her wrists together, securing them to the bedposts, leaving Jessica helpless and at her mercy.

Eva stood back, admiring her handiwork, a wicked grin spreading across her face. "You look so fucking hot like this, Jess. All tied up and ready for me." She trailed her fingers along Jessica's body, her touch light and teasing. "But I think we need to make this a little more... even. Don't you agree?"

Jessica bit her lip, her body already throbbing with desire.

"What do you have in mind?"

Eva turned to her bag, pulling out a thick, black leather belt. Jessica's eyes widened as she took it in, her heart pounding with a mix of fear and excitement.

"I want to make sure you can't move, Jess. I want to have my way with you, completely," Eva explained, her voice a low purr.

Jessica's breath hitched as Eva buckled the belt around her torso, cinching it tight until Jessica's breasts were pressed together, her dick standing out prominently.

Eva's eyes gleamed with satisfaction as she admired her handiwork, running her hands over Jessica's constrained body.

"There we go. Now you're completely at my mercy, Jess," Eva purred, her voice low and sultry. "You can't move, you can't fight back. You're all mine."

Jessica's heart pounded in her chest, her body aching with a mix of fear and desire. She was completely vulnerable, completely at Eva's whim. And yet, there was something thrilling about it, something that made her feel alive and eager for whatever came next.

She watched as Eva reached into her bag once more, pulling out a small, unassuming bottle.

"What's that?"

Eva grinned, her eyes dancing with mischief. "Just a little something to enhance our game. A special lube, from GrowYourGirl. It's designed to activate with sex, and make things more intense. It's got some welcome side effects too.

It'll heighten pleasure and make your orgasms even more explosive. And, of course, it'll make you grow even more." Eva's eyes sparkled with anticipation as she uncapped the bottle, pouring the clear, shiny liquid onto her hands. She rubbed them together, warming the substance before she began to drizzle it over Jessica's body, paying particular attention to her breasts, her hips, and her throbbing dick.

Jessica's breath hitched as the cool liquid met her skin, her body tingling with anticipation.

Eva started, her deft tongue quickly bringing Jessica to her first intense orgasm, with Eva draining her. Before she had time to breath, fingers and objects found their way into her pussy, her ass, her mouth, as a 2nd intense orgasm reared it's head. Jessica was surprized at the onslaught of pleasure she felt, and before long her breasts were pushing against the restraints in a tantalizing fashion.

The onslaught continued for what felt like hours. Jessica had lost count of the orgasms, their starts and ends blending together. The special lube kept her dick hard and slick, and she could tell she was bigger just by the time it took Eva to take her entire length. An image of her ex, Kyle, played in her mind and she couldn't help by chuckle that she was now bigger than him in every way.

She felt a wave of pleasure course through her body, an orgasm she hadn't anticipated.

Jessica broke herself out of her reverie for long enough to see how Eva was doing. She did a double take, as her girlfriend looked larger than. She remembered bouncing up and down on her dick. Her muscles bulged obscenely, larger than anything Jessica thought was possible, and her frame had lengthened considerably. Her heavy breasts hung on her chest, two blimps of sexual lust. As she came again. Jessica could feel the restrains tightening around her.

She craned her neck, straining against them to see Eva's transformed figure. Her heart pounded in her chest, a mix of excitement and disbelief surging through her veins. "Eva... what the fuck... you're massive!" she gasped, her eyes wide with shock and awe.

Eva grinned, her body glistening with sweat and the special lube. Her muscles were impossibly large, her frame towering over Jessica. She flexed, her biceps and quads bulging obscenely, her legs thick and powerful. "I told you, Jess. GrowYourGirl makes things more intense.

Her dick was throbbing for release, and she could feel the restraints tightening around her with each thrust. She looked up at her roommate, her eyes wide with shock and awe. "Eva... what the fuck... you're... you're massive!" Jessica gasped, her voice hoarse with disbelief and excitement. GrowYourGirl makes things...

more intense," Eva purred, her voice thick with satisfaction and desire. She looked down at her body, flexing her massive muscles, running her hands over her enormous breasts. Everything felt enhanced, from her increased strength to her heightened senses. She could feel every inch of Jessica's dick inside her, and it was driving her wild. She looked down at her roommate, her eyes filled with lust and dominance.

"And you, my love, are doing just fine. Your massive body growing with each orgasm. In fact, I think you might be ready for phase 2." Jessica's eyes widened in surprise and excitement. "Phase 2? What's that?" "Only the best part," Eva purred, her voice thick with desire. "Phase 1 was just a warm-up. Phase 2 is where things get really interesting." She leaned in, her voice dropping to a low, sultry whisper. "You don't know how big you are. Let me show you."

Eva reached into her bag again, retrieving a long, flexible measuring tape. Jessica's eyes widened in anticipation and a touch of apprehension. Eva smirked, holding up the tape. "Don't worry, I'm not going to hurt you. I just want to see how much you've grown."

She carefully wrapped the tape around Jessica's thick, veiny shaft, starting at the base and pulling it up to the tip. Jessica held her breath, watching Eva's face as she read the measurement.

Eva's eyes widened in surprise, her lips curving into a wicked grin. "Holy shit, Jess. You're... youre 18 inches of pure, rock hard dick meat." Eva began maneuvering Jessica's massive cock to line up with her mouth. "Your cum does more than make your dick bigger. It's fueled my growth too. And now I want you to have that same growth. I want you to suck." The intensity in Eva's voice sent a shiver down Jessica's spine. She had never felt so vulnerable and yet so empowered. She was bound, at Eva's mercy, and yet, she was the one who held the power to make Eva grow. The thought was intoxicating.

Jessicas lips wrapped around her own massive length, her tongue swirling around the sensitive head. Jessica let out a low groan, her hips arching off the bed as she attempted to take more of herself into her mouth. She could feel the vibration of Eva burying her fingers into herself at the sight of it all. The sensation sent waves of pleasure coursing through her body.

Jessica's thick, veiny cock throbbed in her mouth as she swirled her tongue around the sensitive head, her own precum mixing with Eva's saliva. The restraints creaked as she struggled against them, trying to push herself deeper into her own throat.

Eva watched, her eyes wide with lust and amazement. She had never seen anything so erotic, so sinfully delicious. The sight of Jessica swallowing her own cock, the sound of her groans, the way her muscles strained against the restraints – it was almost too much to bear.

She felt a surge of desire, her own massive clit throbbing and begging for attention.

She reached down, her fingers slipping between her own slick folds, her touch sending electric shocks of pleasure through her body. She looked up at Jessica, her eyes locking onto her roommate's green ones. "That's it, Jess. Take that massive cock of yours. Show me how much you've grown."

Jessica's breath hitched, the vibration sending a shiver down her spine. She felt a surge of power, of dominance, as she looked down at Eva. Her roommate was writhing and moaning, her body aching with desire and need. And it was all her fault.

Not just the physical growth, but the emotional and mental growth as well. Eva looked at Jessica, her face flushed with exertion and arousal, her muscles straining as she fought against the restraints. She had grown so much, in every way. Jessica had always been shy and self-conscious, but now she radiated confidence and power. Eva could see it in the way she carried herself, in the way she looked at Eva, and in the way she commanded the room.

Eva felt a wave of pride and desire wash over her, and she couldn't help but smile. She had done this.

She had brought Jessica to this point, helped her grow in ways she never thought possible. And now, she was going to reap the benefits.

Eva slid down Jessica's body, her hands trailing over her roommate's massive muscles, her tongue leaving a wet trail in its wake. She came to rest between Jessica's legs, her face mere inches from her throbbing, veiny cock.

Jessica groaned, her hips thrusting upwards, seeking more contact. Eva grinned, her tongue darting out to lick the folds of Jessica's pussy, moving her monstrous balls out of the way.

"You taste fucking incredible, Jess," she moaned, her voice muffled against Jessica's flesh. She flicked her tongue against Jessica's clit, making her hips buck against the restraints.

"Eva... fuck..." Jessica panted, her body writhing with pleasure. "That feels so fucking good."

Eva chuckled, her ears picking up on the reverberation of the vibration. "Just wait, Jess. It's gonna get a lot better." She took Jessica's massive cock in her hand, stroking it slowly, teasingly. She looked up at Jessica, her blue eyes filled with lust and mischief.

"You can already get more cock in your mouth that earlier. And the rest of you is progressing nicely. But really, keep sucking your own cock ok? Grow huge for me.

Jessica, I want you to grow as big as you can," Eva commanded, her voice low and sultry. She had never seen Jessica like this—so powerful, so dominant. She wanted more.

Jessica's eyes fluttered open, her body responding to Eva's words. She had never felt so much power, so much control. She took her massive cock in her hand, stroking it slowly, her eyes locked onto Eva's. She watched as Eva's tongue darted out, licking her lips in anticipation.

"Fuck, Jess. That's so hot," Eva moaned, her fingers finding their way back into her own pussy. She stood from the bed, finding the tape measure. She knew hearing how big they were becoming would edge Jessica on. She was, after all, a bit of a closet size queen. She couldn't help but let a grin spread across her face as she read off the measurements. "You're at 20 inches, Jess. And that's just with the tape. I can see the rest of you throbbing against your throat."

Jessica's eyes widened in surprise and delight. She had never been this big before, and the thought of being so enormous, of filling Eva completely, sent a new wave of pleasure coursing through her body. She could feel her dick growing harder, thicker, under Eva's expert touch.

"Good girl," Eva purred, her voice thick with desire. "Keep growing for me, Jess. My biceps are 29 inches. Holy shit I'm huge." Jessica gasped, her voice strained with disbelief and awe.

Eva chuckled, her fingers moving faster as she stroked Jessica's massive cock. "I told you, GrowYourGirl makes things more intense. And look at my legs, Jess. I'm 35 inches now. Can you believe it?"

Jessica looked down at Eva, her eyes wide with admiration and lust. "Fuck, Eva. You're a fucking amazon. You're massive. And I love it."

Eva's voice dropped to a low growl, her eyes locked onto Jessica's. "And I love you, Jess. I am over 7 foot tall. Jessica, are you ready to be the short one in this relationship?

I want you to feel what it's like to be dominated by a true amazon." Eva's voice was low, sultry, and filled with dominance. She stood over Jessica, her massive frame casting a shadow over her roommate. Jessica's breath hitched, her body aching with desire and a touch of fear. She had always been the dominant one in their relationship, always the one in control. But now, with Eva's massive frame towering over her, she couldn't help but feel a thrill of excitement at the thought of being dominated.

"Yes, Eva," Jessica whispered, her voice barely audible. "But not for long. I can feel my cum fueling my own growth. Enjoy being taller for the moment, I'm coming to take the title back." Jessica's voice was a low, sultry growl, her eyes locked onto Eva's.

Eva's grin widened, her eyes gleaming with lust and anticipation. "I like you like this, feisty and full of fight. But first, you're mine. I want to feel your massive cock inside me, stretching me, filling me. I want you to make me cum so hard I see stars, Jess."

Jessica's dick throbbed at Eva's words, her body aching with desire. She couldn't wait to feel Eva's tight pussy wrapping around her, her heat enveloping her.

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