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It does sound nice, doesn't it? To be big and brainless? You don't have to think at all. You already did the hard part, taking an entire bottle's worth of growth pills and washing it down with milk. Now all you have to do is lay back and feel yourself grow. It doesn't take long. That many pills taken all at once floods your body and the pressure almost immediately starts building up inside your chest. God, it feels good. It feels like something you've always wanted, something you've waited your whole life for!

Your hips writhe and squirm. They ache, ever so slightly, as the growth is so intense that it has no choice but to spill out beyond your breasts. Your hands slide upward from your hips, gliding over your waist, as you move towards the expanding mounds on your chest. The anticipation is tantalizing and you bite your lip, bracing yourself. A bolt of pleasure shoots through you. Your back arches, shoving your tits upward into the air. A gasp drags air into your lungs and pushes your ribs outward, lifting your breasts that much higher. Your mind is blank. All thoughts have been blasted away. All it took was a little touch, the grazing of your finger against the side of your breast and the pleasure was immediately overwhelming. Your thoughts are scrambled as you settle back down and they stay scrambled as you start kneading and massaging your growing tits.

With eyelids half-closed, all you can do is moan and writhe. Your fingers spread apart as your breasts grow underneath them. Soft flesh bulges out from between your fingers as you squeeze them. Your clothes are getting tight. You had wanted to keep wearing them for the delectable moment of pretending like you didn't want them to be ripped apart by your swelling udders, but you're too overwhelmed by your own growth to enjoy it on that level. All you can do is claw at your clothes as they get tighter and tighter over your bust. The clasp of your bra breaks, sending ripples through your breasts, and your shirt doesn't last much longer. Relief washes over you as seams split and fabric tears and your breasts push their way out into the open.

Whatever thoughts you had left are completely obliterated as you start groping your breasts directly, pinching your nipples and tugging on them. Your eyes roll back. Your tongue hangs loosely from your lips. The deep, gutteral, lewd moans that rise from your chest are sounding less and less human and more and more primal. Your breasts won't stop growing and you're turning into a brainless, mindless, thoughtless cow!

GLHHK! GGLLUUK! GHHHHHK!

One hand reached up to grope her round, full tits while Chloe's other hand held the head at her crotch right where she wanted it. Occasionally, through her cleavage, she could see Finn's eyes staring up at her, shimmering with lust and slightly teary as she shoved her cock down his throat. She rolled her hips and let her eyes flutter closed to better savor the warmth of his mouth and the wetness of his throat.

Chloe had always been a bit of a horndog, but these new hormones she had been prescribed were practically making her feral. The hormones were extremely effective; in just the few weeks since she had started taking them, her breasts had swollen up to perky F cups and her hips had widened to give her a near perfect hourglass shape, growing bigger and faster than she had on years of hormones prior. There were some drawbacks, however. The hormones made her cock slightly larger, slightly thicker and it sent her balls into overdrive. The heavy cum factories needed to be emptied multiple times a day and her body was more than eager to demand such release of her. Thankfully, her roommate had always been eager to help.

Tightening her grip on Finn's long, flowing hair, she pulled his face away from his crotch. He coughed and sputtered and let out high-pitched whines as he gasped for air. The feminine sounds that poured out of him made Chloe's cock throb, a glob of precum dripping from the tip and joining the puddle of drool at her feet. She gave Finn a long moment to catch his breath before she shoved him back down again. She lifted her foot and brushed it against his little bulge. Chloe let out a whine of her own. "Fuck, cutie. You've got me so close! Your throat pussy is so fucking good, I'm gonna... F-fuuuuuck!"

With both hands, Chloe held Finn's head in place, his lips pressed against her crotch. Her cock thickened. It pulsed. Her balls tightened. A desperate moan ripped from Chloe's throat as, for the third time today, another load poured down Finn's throat and slid directly into his stomach. She could practically hear the dense ball sludge gush into his tummy, sloshing as it joined the other two loads that already bloated his gut. Through his nose, Finn tried to keep breathing. He didn't have to swallow; Chloe's cock pushed past that part of his throat. His eyes fluttered as he felt himself get fuller and fuller. The cum distended his belly and made it sag, pressing against his own stiff cock. He moaned around the shaft in his mouth which just prompted another blast of cum to pour inside him.

By the time Chloe slid out of his throat, both of them were completely spent. She flopped down to her knees, her breasts bouncing from the impact, while Finn fell backwards onto the floor. He pawed at his cum-bloated gut, feeling it squish and slosh under his grip. Chloe admired her handiwork. He really did look like a condom, inflated and used, but there was something more about him. He didn't just look full; he looked soft. His chest, completely flat when they had first moved in together, had started to bud, his puffy nipples capping soft mounds. An A cup would still be generous, but there was definitely something there. Padding had started to thicken his thighs and his hips, too. Clearly, the hormones weren't just impacting Chloe.

Slowly, exhausted, Chloe lowered herself down next to the inflated femboy and curled herself around him. She stroked his hair and lightly rubbed his belly, planting little kisses on his forehead. "Thanks, cutie. I don't know that I'd be able to get through this without your help. You take such good care of me."

"Mmmf, fuck, I wanna go back to sleep! I just had the best fucking dream! It was amazing. It's getting kind of hazy now, but all I can remember is this pressure growing in my chest. It was so weird, kind of like when you pop your ears on an airplane but further down. I reached up to try and figure out was going on and, all of a sudden—fuck—I had tits! Like, real tits, not these AA-cup mosquito bites that I've had for as long as I can remember. They were so soft and squishy and bouncy; I couldn't stop playing with them. The more I played with them, the bigger they got! I could feel them growing in my hands, spreading my fingers apart, bulging through the gaps. I kept trying to imagine what sort of bra size I'd have, but as soon as I settled on a size, I outgrew it! It was so fucking hot, I can't get over it. The growth just kept going and going, my tits swelling past my ribs, past my bellybutton, past my hips! They were so heavy, they wound up pulling me over! The next thing I knew, I was perched on top of them! I was trapped on top of my gigantic, growing tits, watching all this soft, wobbling flesh spread out around me. My body became this tiny speck, floating on a sea of tit! It was amazing! God, it felt so fucking good to be BIG! To be BUSTY! Fuck, I wish I could go back! After all that, I don't want to have to wake up and be flat again!

Dr. Elena Voss stared at the Phase II data in the dimly lit conference room of NexFertility Therapeutics in South San Francisco. It was late 2024. The compound—internally coded NF-478, later branded CumMax—was supposed to be a targeted fertility enhancer. It upregulated specific Sertoli cell proteins and boosted spermatogenesis via a novel GnRH analog pathway, combined with a selective androgen receptor modulator designed to improve sperm motility and count without systemic hormonal disruption.

In rodent and primate trials, it had increased viable sperm output by 340–600%. Human trials looked even better on paper. Men with idiopathic oligospermia saw sperm counts triple within four weeks. Side effects seemed mild: slight testicular fullness, increased libido, occasional vivid dreams.

The FDA fast-tracked it under breakthrough designation. By early 2025, it hit the market.

Mark Reynolds, 34, software engineer in San Mateo, picked up his first prescription in March 2025. He and his wife Sarah had been trying for two years. His baseline count hovered around 8 million/ml—borderline. After reading the glossy NexFertility pamphlet ("Designed by fathers, for fathers"), he started the once-daily pill.

Week 1: Nothing dramatic. Maybe a bit more energy.

Week 2: His balls felt heavier, warmer. Morning wood became almost painful. He came during sex in under two minutes—embarrassing, but Sarah was ovulating and they were both excited by the volume. He produced noticeably more ejaculate.

Week 3: The hypersensitivity hit like a switch. A stray brush of Sarah’s thigh while they were spooning on the couch made him throb uncontrollably. He tried to hold back during penetration but lasted maybe 15–20 seconds before an intense, almost involuntary orgasm. The amount was shocking—thick ropes that overflowed and ran down her ass. Sarah laughed at first, then got quiet when she saw how mortified he was.

By week 4, penetration alone was impossible. The moment the head of his cock touched warm, wet flesh, his pelvic floor would spasm and he’d spurt helplessly. Even oral foreplay became risky. Sarah’s breath on his shaft could trigger leaking.

They adapted. She’d edge him manually for hours with lube and a loose grip, then mount him and grind slowly while he tried not to move. But even then, the slightest clench from her would set him off. The orgasms were longer, deeper, almost full-body. His testicles visibly swelled after each one.

Sarah started calling it “the CumMax effect” affectionately. She loved the volume and the way he trembled. Mark felt emasculated but also weirdly addicted to the intensity.

On Reddit, it started small.

r/CumMax was created in April 2025 by user u/PrejacPilot. The first post was a throwaway account:

“Guys… is anyone else on CumMax experiencing… extreme sensitivity? Like, I finish in seconds now. Doc says it’s temporary while my body adjusts. Wife is pregnant though, so mission accomplished? But holy shit.”

It got 200 upvotes in a day. Then the floodgates opened.

Dozens, then hundreds of men posted before-and-after sperm analysis screenshots (many faked or exaggerated for karma). Captions and memes exploded: edited photos of overflowing condoms, trembling legs during sex, wives grinning while their husbands apologized mid-thrust. Personal stories ranged from humorous to desperate.

One highly upvoted thread:

Title: “One month on CumMax. I can’t last more than 10 seconds. Wife says she’s never been more satisfied. AMA.”

Comments praised the “biological dominance shift,” the massive loads, the constant low-level arousal. Some men described their partners taking control—edging sessions that lasted hours, ruined orgasms, gentle humiliation play. A niche within the niche emerged: men who deliberately overdosed on 2–3 pills a day for stronger effects, leading to near-constant leaking and multiple spontaneous emissions per day.

NexFertility’s PR team initially celebrated the “organic community.” Then the tone shifted.

Dr. Voss was in damage control by July 2025.

Internal data showed the hypersensitivity wasn’t a bug—it was an unforeseen downstream effect. The drug massively upregulated both dopamine and oxytocin receptors in the pelvic nerves while lowering the ejaculatory threshold via altered spinal reflex arcs. What started as fertility enhancement had created a feedback loop: higher sperm production → increased testicular pressure and nerve sensitivity → hyper-responsive ejaculatory system.

Some patients reported permanent changes even after discontinuation. Testicular volume stayed elevated. Refractory periods shortened dramatically. A small subset developed what clinicians quietly called “CumMax Syndrome”: inability to penetrate without immediate ejaculation, paired with significantly larger semen volume and more intense orgasms.

The company issued warnings. Sales soared anyway. Fertility clinics reported record pregnancies.

Mark and Sarah’s life had transformed.

One Friday night in their apartment, Sarah straddled him on the couch, wearing nothing but one of his old t-shirts. She was already wet—she’d been teasing him with photos all day at work.

“Easy, baby,” she whispered, guiding just the head inside her. Mark’s hands gripped her hips, trying to stay perfectly still. The heat alone made his cock twitch violently.

“Sarah… fuck… I’m already close.”

“I know.” She sank down another inch. His abs clenched. A thick spurt escaped before he could stop it, lubricating her further. She moaned softly and kept going.

He lasted eight seconds total that night. When he came, it was with a broken groan—long, pulsing jets that filled her and leaked out around him in heavy drips. Sarah ground through it, chasing her own orgasm while he shuddered helplessly beneath her.

Afterwards, she stroked his hair. “I love what this drug did to you. You’re so sensitive for me now. So eager.”

Mark buried his face in her chest, equal parts shame and arousal. He had refilled the prescription that morning.

r/CumMax crossed 80,000 members by October 2025. It became a strange mix of support group, fetish hub, and pseudo-scientific forum. Long-form posts analyzed pharmacokinetics. Men shared lab results showing sustained high inhibin B and altered prolactin responses. There were “success” stories of pregnancies alongside “addiction” stories of men who couldn’t stop taking it even after conception.

Some wives and girlfriends created a sister subreddit. Others posted anonymously about how their once-average husbands had become hypersensitive, high-volume “prejacs” who now lived in a state of constant low-grade submission.

NexFertility stock soared, then plateaued as lawsuits loomed. Dr. Voss watched the Reddit numbers climb with a complex expression—part scientific fascination, part dread.

The drug had worked too well.

It hadn’t just improved fertility.

posted on r/CumMaxGirls, the CumMax community was exploding lately...

By early 2026, r/CumMax the main sub, had exploded past 240,000 subscribers. What began as a quiet fertility support group had morphed into something far more potent: a thriving subculture of transformation, addiction, and erotic surrender. The subreddit’s top posts were no longer just before-and-after sperm counts. They were detailed “progress reports” with timestamps, measurements, and increasingly explicit videos.

The official prescribing information was clear: one pill per month. The massive upregulation of spermatogenesis required frequent release—ideally daily masturbation or sex—to prevent painful testicular congestion and maintain hormonal balance. Most users ignored this completely.

Mark Reynolds was now on his sixth month.

He had started with the prescribed single pill. Then, like thousands of others, he began micro-dosing extra. Two pills a month. Then three. His testicles had grown noticeably— from a normal 20ml volume to an estimated 28–30ml each, visibly heavier and fuller in the mirror. His flaccid cock had lengthened and thickened by nearly an inch and a half. Fully erect, he measured just over 7.5 inches with a heavier girth that made Sarah’s eyes widen every time.

The hunger was constant.

He fantasized about fucking almost nonstop—at his desk, during meetings, while driving. The drug had amplified libido through elevated testosterone metabolites and heightened mesolimbic dopamine sensitivity. Yet the ejaculatory threshold had plummeted. Neural remodeling in the spinal cord had lowered the latency of the bulbocavernosus reflex dramatically.

He could still get hard again quickly—sometimes within minutes—but penetration almost always ended the same way: desperate, involuntary spurting within 10–25 seconds, followed by heavy, thick loads that left wet spots on the sheets and Sarah dripping.

Sarah had fully embraced her role.

One Thursday evening in their San Mateo apartment, Sarah had Mark lying naked on the bed, hands above his head. She wore nothing but black lace panties.

“Look at you,” she purred, slowly dragging one fingernail up the underside of his throbbing cock. It twitched violently and leaked a thick bead of precum. “You’re too sexy for your own good, baby. One little touch and you’re already desperate.”

Mark groaned, hips bucking upward. “Sarah… please. I need to be inside you.”

She smiled wickedly and straddled his thighs, hovering just above him. She rubbed her soaked panties along his shaft, teasing the head against her covered slit. Mark’s eyes rolled back. Three weak spurts shot out immediately, soaking her panties. He hadn’t even entered her.

“Oops,” she whispered. “Already? My poor prejac.”

She pulled her panties aside, sank down onto his still-hard cock, and began riding him slowly. Mark lasted twelve seconds before his second, much stronger orgasm hit—long, pulsing jets that overflowed her. Sarah didn’t stop. She kept grinding, using his hypersensitive, still-erect cock like a living dildo while he whimpered and shook beneath her. She came twice before finally letting him rest, his chest heaving and balls aching.

This had become their new normal. She loved edging him for hours, bringing him to the brink with light touches and whispers until he begged, then riding through multiple ruined or explosive orgasms. The more he grew, the more she teased.

On r/CumMax and the connected c-max-user Tumblr, the community celebrated exactly this.

Top posts included:

“Month 5 Report: +1.8 inches length, +0.7 girth. Can only last 15 seconds inside. Wife has never been happier. She calls me her ‘cum faucet’ now.” (12k upvotes)

Detailed guides on “responsible abuse”: how to stack doses safely (or unsafely), how growth seemed linked to cumulative exposure and frequent arousal, how the constant need to cum became psychological as much as physical.

Women had their own active threads. Many described the intoxicating power shift:

“There’s nothing hotter than watching him try so hard to last, only to lose control the second I whisper how full and heavy he looks. I can edge him for literal hours now. Even after he cums, he stays rock hard and desperate. Best decision we ever made.”

Some wives posted anonymous videos of them riding their boyfriends like toys—slow, deep grinds while the man trembled and spurted helplessly beneath them. Others shared stories of public teasing: light touches under restaurant tables that caused sudden, embarrassed orgasms in their pants.

The femdom energy was electric. Men on higher doses reported being in an almost permanent state of low-level submissive arousal. Their cocks betrayed them constantly, and many found the humiliation intensely addictive.

NexFertility was in full crisis-rebrand mode.

In February 2026, the company officially renamed itself CumMax Inc. Their stock had tripled despite growing regulatory scrutiny. Internal studies now showed that roughly 95% of female partners of male users were on hormonal birth control. CumMax was barely being used for fertility anymore. It had become the world’s most successful recreational sex drug.

Dr. Elena Voss, now Chief Scientific Officer, stared at the latest adverse event reports. Self-dosing had spiraled. Some users were taking the equivalent of 8–10 official doses per month. Testicular growth had become extreme in heavy users—some reaching baseball-sized orbs with visibly enlarged veins. Penile tissue proliferation (via local IGF-1 and VEGF upregulation) was real and dose-dependent. Hypersensitivity had become semi-permanent in long-term users due to synaptic remodeling in the ejaculatory reflex centers.

“To all my Barbz coming to the show tonight… Real talk. If you got a man, a situationship, a bestie, whoever — make that nigga take his CumMax before he walks through the doors. Hand it to him. Feed it to him. I don’t care. I want every single dick in that arena leaking and desperate for me.

And fellas… if you really love me, you’ll pop at least two tonight. I wanna see what happens when I really start twerking 💦 Who’s brave enough? Tag me in your stories.”

The post blew up instantly. Thousands of likes. Hundreds of guys posting themselves swallowing the pills, their girlfriends smiling wickedly beside them.

Cut to the Concert.

The arena was already thick with sexual tension before Nicki even stepped on stage.

She came out in a tiny, glittering silver bikini top that struggled to contain her heavy breasts and a skirt so short it might as well have been a belt. The bottom was little more than a thong disappearing between her legendary ass cheeks. Every step made her body jiggle in the most hypnotic way.

Down in the crowd, the CumMax had barely started to kick in, but the effect was already visible.

A curvy girl in the front row had her boyfriend pressed against the barricade, tongue deep in his mouth, grinding her thick ass back against his crotch shamelessly. His hands were squeezing her hips as he groaned into her mouth. A few feet away, another couple was full-on dry humping — her skirt hiked up, his hard bulge rubbing between her cheeks while they made out like they were about to fuck right there in public.

Nicki strutted across the stage, microphone in hand, smiling at the growing chaos.

“Mmm, I see some of y’all already losing your minds… and I haven’t even started yet,” she teased, running her hands over her own body. She turned slightly and gave her ass a slow, deliberate bounce. The crowd roared.

She locked eyes with a section of the audience and licked her lips. “You boys feeling that warmth in your balls yet? That heavy, full feeling? That little throb in your pants that won’t go away?”

Hundreds of men shifted uncomfortably, many already sporting obvious, rock-hard bulges. Some were leaking so much that small wet spots were forming on their pants. Their girlfriends looked flushed and horny, hips moving restlessly, breasts looking slightly fuller and more sensitive under their tops.

Nicki laughed low and wicked.

“Good. Because when I really start twerking… all hell is about to break loose.”

She turned her back to the crowd, bent forward, and gave one slow, deliberate clap of her massive ass.

That was all it took.

The first guy in the front row whimpered loudly as his cock pulsed hard in his pants. His girlfriend’s eyes widened in delight as she felt him suddenly start spurting against her ass, thick ropes of CumMax-enhanced cum flooding his underwear in heavy, uncontrollable bursts. He tried to hide his face in her neck but his hips kept twitching, pumping out more.

Then another guy nearby moaned, knees buckling as he came hands-free, soaking his jeans.

The hyperspermia was waking up.

Nicki grinned over her shoulder and started moving faster, making her ass bounce and ripple hypnotically to the heavy beat. The wet sounds of her cheeks clapping filled the arena through the speakers.

All around the venue, men started breaking.

Moans and desperate cries mixed with the music. Guys were cumming in waves — pants darkening, cum running down their legs, balls pumping out load after load with almost no break. Women were getting visibly hornier, grinding harder on their twitching, orgasming boyfriends, their own bodies becoming softer, curvier, tits swelling and pressing against tight tops as they absorbed the potent atmosphere.

Nicki kept twerking harder, laughing with pure dominant pleasure.

“That’s it, babies… Cum for Nicki. Be my good little CumMax prejacs. I want every single one of you leaking and broken by the end of this show~”

“Honey? Do you need to fuck again? 🥰🥰🥰” she takes me by the hand and lead me to our bedroom for the 4th time today

I miss riding your cock too you know, I even love how we try to find new ways to have “sex”. Like when I’d ride my dildo and tease your cock… It’s so easy for you, you look at me too long and *spurt* *moan* but do you know how hard it is for me? seeing THAT COCK bounce and throb every day? FORCING ITSELF BIGGER Just for me? Baby I can’t get it past the head anymore that’s why I need to train you to be faster… Cum faster… Look I love you but you know my pussy’s off limits. I wouldn’t mind if you needed me to suck it again…

Babe at first it was fun getting split in half and used until you’d dump all that warm cum in me. But you lasted too long- and your cock hasn’t stopped growing- NONO BABY I don’t want you to STOP the CumMax- just keep taking more let those side effects really kick in- train yourself to cum faster for me! My pussy just couldn’t take you pounding me so hard for so long- something has to change… but fuck please don’t stop the CumMax. When I saw the premature side effects I thought we could change our sex life but I can’t keep riding a dildo and training you to be am even worse premature ejaculator anymore. I thought letting you stick your cock between my legs while we cuddle would be a consolation prize, that you could hump me all you want- but NO you still keep begging, humping, cumming, and begging again.

I’m taking GrowMax so I can finally fit that cock in my pussy again, no more humping my ass and listening to prejac Hypnos for you baby! (Actually maybe you don’t have to stop that hehe)

When you head downstairs from your apartment to the bakery you’re not surprised to see your wife already mixing up new things to serve for the day. You met her two years ago. As a witch she would brew up potions at home and you went looking for a love potion, you left with her number and a date written in your calendar instead. Now you two have a beautiful apartment above your bakery where you live and work together. Serving up beautiful breads and pastries that your wife bakes spells in to. A cinnamon bun that offers luck, a cheese scone that helps you find happiness for the day, or even a danish that can attract wealth. Today she asked that you wake up early to try something new before you opened. “There you are honey! I made this just for you. Here’s the practice one and I’ll make the full batch if you like it” she said passing you a beautiful bread roll. You smile and take it and bite into it, the bread is so soft and while the flavouring looks rather plain you’re surprised by a thick, sweet, custard inside. “This is so delicious, do you want a bite?” You offer, but your wife moves the bun to your lips “oh no, if you like it, you have to finish the whole thing”. You head her words and soon there’s not even a crumb left, she starts pulling out the ingredients to make a full batch. Starting with warm water, yeast, and honey in one bowl, the flour and dry ingredients in a second. You watch as the yeast bubbles and feel a little tingly sensation running all over your body. “Darling, what spell did you put inside these ones?” She smiles “oh, the one you ate is a special spell just for you. But these ones will offer growth and opportunity. What are you feeling honey?” “I feel really tingly all over, and like bubbly almost? And I think…did it get hotter in here?” You suddenly feel your whole body wash over with a gentle warmth, like you were sitting outside on a sunny day. Your wife’s eyes are sparkling and her grin tells you everything you’re feeling is just as it should be. She starts to add the dry ingredients to the yeast and water, mixing it together until it’s fully combined. Her graceful fingers making sure nothing is missed as she forms it into a ball and leaves it to rest. As you watch your body shifts, the tingly feeling slowly being replaced with a heavy tiredness. “Everything’s all prepped for today, and I’ve got extra hands on staff, why don’t you go lay down, you look like you could use a rest.” Her eyes look you up and down “are you feeling anything else?” You nod “the tingles are gone, and I’m so sleepy, like my body just feels heavy. And I think it’s the heat my apron feels a little tight, would you”- before you can finish your sentence your wife is behind you untying the knots behind your back. You take your wife’s advice and go upstairs to your apartment, heaving your feet as you go. The tight feeling from before still lingers and you wonder if it’s just a side effect of the spell as you lay down and close your eyes.

*****************************

Aw, sweetie! It sounds like you already know what you should do! I bet if you closed your eyes and really thought hard, rubbed your last two braincells together the same way you rub your new, big, juicy, titties, you'd see the answer, clear as day!

No? Nothing? Nothing at all in the empty, bimbo head of yours?

That's okay, cutie! Bimbo Mommies aren't supposed to think, anyway! I'll just tell you the answer to make it easy: go find your boyfriend and thank him! I'm sure he left out those growth-inducing, brain-draining brownies specifically for you to eat and you were so good, eating every last one of them! And now look at you! Busty and curvy and soft and giggly, exactly the way he wanted you! Doesn't that feel amazing? Doesn't it feel so good to know that you're doing exactly what you're supposed to, looking exactly how he wants you to?