#forced expansion

[theneedforbreed]

Harpygirl best friend showing off her tummy, so round and distended, to you as she reveals that she's about to lay her first clutch off egg. She asks if you'd help her. She doesn't go into details, but she's your friend so, of course, whatever she needs, you'll give her whatever she needs.

A few weeks later, you're moaning and mooing, barely able to think, as she coos and gropes you and compliments you on how much milk you're making, your udders swollen up to a massive size. Full disclosure, she doesn't even know if her eggs will wind up hatching, but better to be prepared, right?

Fuuuuck @.@ that’s so good!

Poor me, pumped full of lactation boosters and supplements, turned into a milk machine of a holstaur to help my harpy friend >.<

Poor cow brain in a milky haze as she teases me? Fuuuuck

[besuggestion]

i keep having this recurring fantasy of a partner magically gaining the ability to modify her girlfriend's body, and immediately making her tits and ass start getting bigger and bigger, all the while watching this happen to her girl makes her hornier by the second until all she can think about is making love to her newly curvy girlfriend... agjsjdhsjksks

"I wish I could make my girlfriend sexier."

A lot of things happened, and long story short, a fairy gave you one wish. At your request, the fairy shrugs, but grants it, and disappears. Since "sexy" is subjective, the fairy lets you just do whatever changes you want with her body.

You get home to your girlfriend, with an evil idea. You'll do it so she won't even notice.

Every moment, you make your girlfriend's chest just a tiny bit bigger. While you greet her. When she's cooking. When you're watching a movie together.

"Mmn!"

"What was that?" You ask her, but she looks down, her face red.

"N--nothing." she mumbles, but you see the way she presses her thighs together.

It's working.

You also make her hips bigger, little by little. Oh! And while you're at it, you make her body more sensitive. Especially her nipples.

"Ah!" Your girlfriend moans while she's sitting down to eat dinner.

"Are you okay?"

"Yes," she says, breathing heavily, her face turning red. "It's...um, my chest rubbed against the table, and it hurt."

Liar. It clearly felt good.

Being able to change her so much is really starting to get to your head. You love seeing her so flustered like this, and you're not even lifting a finger.

Even when you're not with her, you make her bigger. Make her hornier. So that she wakes up wet. So that she's as hungry for sex as you are. Make her ass bigger. Her pussy tighter.

The next time you see her, she's wearing a hoodie to hide her chest. It's a pity, but you can still see her amazing ass. Besides, all you have to do is keep making her tits bigger...

"Mm!" she moans.

"What's wrong?"

"N--nothing. I just... I've been out of it, lately." She stammers an excuse, but you can see her hips starting to buck.

God, her sexy body was really driving you wild... you weren't sure you could hold on much longer. You move closer to her, moving in to kiss her.

She kisses back hungrily.

Oh, god. Your will breaks, and you reach up to touch her. Instantly, she reacts.

"Mm! W--wait!" she says, her face flushed. "M--my body...something's wrong with it..."

"What's wrong with it?" you ask, your hands trailing down her sides, towards her ass.

"It's...it's really..."

"Hm?" you ask, giving her ass a squeeze.

"Ah!" she moans, leaning into your touch. "It--it's really sensitive--!"

You give a small laugh. "Oh? So you're saying your body became really slutty?"

"Hahh," she breathes, closing her eyes. "Oh...yes. I...my body is really slutty." she says it slowly, as the truth washes over her.

"Shouldn't a slut want to fuck?"

"Yes," she breathes, looking at you with an unfocused expression. "Yes, you're right. I--I'm a slut that needs to be touched."

You don't need another word from her. You lift up her hoodie, revealing her ridiculous tits, and grab them.

God, yes. This is what you wanted. You squeeze her body everywhere, until she begs you to fuck her, and you do--over, and over, and over again, until you're out of stamina, but she's still begging for more...

...You start to wish you could change your own body, too.

[growth-opportunities]

"Can you fucking believe this?! Look what happened to my beautiful boobs! They're huge, swollen udders now! And they won't fucking stop growing! I actually kind of liked it up through the first few cup sizes, but this is getting ridiculous!Shit, I don't know how much longer these straps are going to last. This is all Angela's fault. She fucking cursed me so that if I say anything mean or even tell a lie about another person, they fucking grow! Can you believe the audacity of that spiteful, lonely, pathetic goth bitch?! How dare- Oouughhnn fffffuck... SHIT! God damn it, that's another half a fucking cup size! She's going to turn me into a fucking cow, at this rate! She'd probably like that, creepy fucking- No, no, no, no, SHIIIIT! God fucking damn it! This is totally unfair! I'm the nicest- Hnnng... I'm one of the nic- Ahhnnn! Okay, fine, I'm a huge bitch, but I don't deserve this! Fuck, I have to find Angela and get her to fix this before I'm too busty to walk! These things are getting really fucking heavy. Maybe she'll fix this if I... Ugh... If I ask nicely. Vindictive little- Wait, no, stop stop stop! Fuuuuck!"

[growth-opportunities]

The latex groaned as the pressure underneath built. Lilian's growing breasts bulged out to the sides and out of the middle, wherever they could find room. She tried her best to bear it, to tough it out, but it was getting harder by the minute. The tight material was starting to dig into her shoulders as her breasts pushed outwards, whimpering both from the pain and from the arousal. "B-baby? We need to stop! It's getting to be too- aahhnnm! M-much!"

The man sitting in front of Lilian didn't respond immediately, still keeping his thumb pressed down on the device making his girlfriend's breasts inflate. He only offers a shrug in consolation, though his smile takes on subtle cruelty. "We said that we keep going until the outfit breaks! That's always been the rule, you know that."

Lilian tried to respond but, as soon as she opened her mouth, a moan burst out instead. As the outfit grew tighter over her swelling breasts, it not only dug into her shoulders but also pulled the material taut between her legs. Her eyes fluttered as pleasure rushed through her body. "Aaron, p-please... This isn't a bra! This isn't a shirt! I don't think it's going to break!"

The man smiled again, leaning forward. Pressing his thumb harder on the button wouldn't make her grow any faster, but Aaron refused to let go. "Until. It. Breaks. No matter how big you have to get. And if your boobs slip out before it breaks, well, I guess we'll just have to see how big this thing can make you, won't we?"

[growth-opportunities]

Got an idea: tiddy growth as punishment but also brain drain.

Being forced to take a pill that fogs your head and blows up your tiddies nice and fat and heavy @.@

Cruel laughter echoes in your ears, almost in perfect harmony with the moans that pour from your throat and the sound of creaking, stretching fabric. The ever-growing tightness of your bra, digging into the new, billowing flesh on your chest, sends pleasure through you, forcing you to arc your back and shove your swelling tits forward.

"Ouughhhnnn! Stooooopppp! My titties are, like, soooo biiiigggg!"

Your desperate, lewd, barely intelligible please just make the chorus of laughter ring out even louder. Your roommates just watch as you put on this lewd display for them. Cassie takes a swig from her drink and pushes off from the couch, sauntering over to you with chilling confidence. The envy you once felt for the curvy, blonde beauty is overpowered by your burning arousal; her bouncing tits make a perfect distraction as she approaches. You jump, both from surprise and a sudden surge of arousal from physical contact as she reaches down and grabs you by the chin, tilting your head up towards her.

"What's the matter, hm? You used to tell us all the time that our DDs meant we had more tits than brains! Those pills we gave you are just to make sure you know what that's really like! Now you have these oversized, lewd pornudders, just like you always wanted!"

While none of them are very long, your roommate's words are confusing, especially amid the arousal coursing through your body. Before you can even attempt a response, Cassie suddenly reaches down and seizes hold of one of your tits. Your mind flashes white. Pleasure fills every inch of your body. Your eyes roll back and your jaw drops open. Your moan trumpets from your throat but only for a second before being muffled. Cassie slams her hand down over your mouth, clamping it there to make sure you don't spit out the three more pills she just tossed in. While that hand stays firmly over your lips, the other moves to your throat, stroking it and coaxing you into swallowing the pills. You don't have any choice. The pills slide down and tumble into you. Immediately, even before Cassie lifts her hand away from your mouth, you can feel what little intelligence you have left burning away. Your tits surge, growing outward, bulging over your bra and threatening to, at any moment, destroy it entirely.

You open your mouth to say something—anything—but all that tumbles out is a series of disconnected syllables, too dumb and too horny to put anything else together. A sound hits your ears and you immediately perk up, now acting more on instinct than on any kind of coherent or intelligent thought. Your eyes track the pill bottle back and forth as Cassie shakes it in front of you. The sound of the pills rattling inside has you deeply entranced.

"God, you're so fucking dumb now! If you still had your bitty A cups, you'd still have more tits than brains!"

The laughter that comes after doesn't make sense to you. Nothing does anymore. That doesn't stop it, however, from making embarrassment burn in your cheeks, the arousal in your core burning ever hotter. You bounce your titties. You don't know why. It just feels right. It's who you are now. They're what you are. You're tits! And declaring yourself as such only makes your roommates laugh harder.

[growth-opportunities]

The "ground" shook underneath you as the twin mountains hanging off of Heather's chest slammed into the mattress. The impact rippled upward through her colossal tits, a sight that was as sickening as it was entrancing. You weren't disgusted by it—quite the opposite! At your scale, however, those gargantuan breasts looked less like anatomy and more like geography and parts of the landscape, especially parts as big as those, simply weren't meant to move like that. Fear, deep and primal, welled in your chest as your eyes followed the gorge of her cleavage up to her towering neck and kept going, all the way up to her soft lips. Watching them curl into a smile made your blood run cold and the look in her eyes froze you with fear. Her voice boomed like thunder.

"What's the matter, little one? I thought this is what you wanted!"

It had been, at least a few weeks ago. Your girlfriend had always been busty, one of the many reasons that you were attracted to her in the first place. Greed, however, got the better of you. You found a way to give some of your height—just a little!—to make her bust bigger. You figured an inch or two would be barely noticeable and the effects would be impressive and, seeing her grow with the first inch, you were right. An inch became two. The sight of your girlfriend bulging out of her bra made you dizzy with arousal. Two inches became three. She started having to constantly adjust her overworked bra, making her tits wobble in a way that consumed you. Three inches became four. Your eye-level was closer to her bust than ever which made it all the easier to appreciate the way she bulged out of her shirts in the new bras she was forced to buy. Four inches became five. Her breasts had grown so big as to distract you completely from her stories of unwanted attention and from the suspicious look in her eye as she scanned up and down your height. As five inches became six, you did your best to reassure her that it was just a late growth spurt, that she'd learn to love them. You certainly did. You couldn't keep your hands, shrunk smaller as her breasts grew even bigger, off of them.

But that was all when you were still several feet tall. Now you were barely a few inches and your little legs could only carry you so far as her car-sized hand reached down and plucked you off of the bed. Waking up from your nap to the room looming over had been disorienting, but that feeling paled in comparison to the rush of the wind around you as you were whisked through the air up to meet your girlfriend's towering face. Far below you, her breasts still look enormous, but you can barely look at them when her lips are so close and her breath is so warm. She tries to whisper, but at your size and at this distance, you still wince.

"Someone got a little greedy, didn't they? I noticed at the first inch, but I wanted to see how far you would go. When it became obvious that you wouldn't stop, I simply decided to speed up the process! You left the connection open, so all I had to do was pull. I'll be honest, when you first started forcing me to grow, I was not having a good time. I barely wanted to be the size I was before and you made me even bigger! I figured this was the only way to end it! I'm not sure how many inches you have left to spare! Now that I'm here, though..."

Heather bit her lip and shimmied her shoulders. Down below, waves moved across the ocean of tit underneath you. "I don't mind so much. But, don't worry, I'll make sure you get to truly experience these 'gifts' you gave me."

Her face moves away from you as she lowers you down, down, down towards her massive bust. Before you knew it, the walls of her cleavage were rising on either side of you, her fingertip pushing you deeper. "Are they big enough for you yet? I can always make them a little bigger for you, but I'm not really sure what that would do to you. I guess we can find out. Together."

Her cleavage closed in around you, plunging you into warmth and softness and darkness.

[growth-opportunities]

They won't stop growing.

I won't let them.

Every morning you wake up and your tits are a little bit bigger, a little bit heavier, a little bit fuller. You feel them weigh on your chest, jiggling and sloshing as you rise up from bed, bouncing as you walk over to your dresser. Even wrapping your arm around them, feeling their softness bulge over and under, isn't enough to fully dampen the movements of your growing tits. You already feel the familiar dread in your chest as you pull open your drawer and pull out a bra. You know it'll be too small, too tight, forcing your growing tits to bulge over the cups. It always is, day after day, even after upgrading to new sizes. But what choice do you have? Your shirts do nothing to hide the obscene shape your tits take squeezed into the too-small bra. If anything, their tightness just highlights the uneven shape of your soft, wobbling tits. Everyone will see. Everyone will know. They can't be hidden and it gets worse every day.

And that's exactly how I want it to be.

I want every jiggle, every wobble to be a reminder of what I've done to you. Every time you feel your tits brush against something or rest against the table as you lean forward, I want you to think about me and what I've done to you. I took you and molded you and reshaped you and grew you and grew you and grew you. And now, more and more every day, your entire world revolves around the tits I gave you. Nobody looks you in the eye anymore. People gawk at you and stare at you and whisper about you as you walk by them, tits sloshing with every step. Every inch you grow—every inch that I force onto your chest—shifts the focus of your entire world a little more towards your tits. They're eclipsing the rest of you, taking over your life. All because of me. I wanted this for you. Now you have to live with it.

And it's only made worse by the fact that it feels so fucking good.

You spend hours every night groping yourself, kneading your tits, tugging on your nipples. The perception of your tits as the center of your being isn't just external, but shifting internally, too. The bigger I make you, the more your life revolves around your tits. More and more frequently, you fall asleep dizzy and basking in orgasmic glow, mindlessly repeating "I'm just tits. I'm just tits. I'm tits. I'm tits." There's a part of you that worries that your tits will eclipse your identity if I keep making you bigger. There's a part of you that can't fucking wait.

[growth-opportunities]

A woman being punished via breast expansion, her tits growing and growing and producing milk with no outside relief or milking, all while being tied and unable to stop it.

Not only was struggling against the ropes that bound her wrists behind her back a futile effort, it was a sickening one, too. Every twists of her shoulders, every movement of her arms, sent ripples across the surface of her tits. Mary winced at the feeling of her milk—milk that she hadn't even had more than an hour ago—sloshing inside her swollen milktanks. For a moment, she felt pathetic, helpless as her breasts grew heavier and heavier. Then, a tittering giggle made her ear twitch. She dragged her gaze upward from her own cleavage to glare at the women standing around her. Her breasts swung as she tried once again to free herself from her restraints, this time not just aiming for freedom but to take a swing at her tormentors.

Through gritted teeth, Mary growled. "You fucking traitors! How fucking dare you?! I led us all the way to regionals and this is how you repay me?! Bunch of jealous bitches. Jealous that I was a better cheerleader! Jealous that I was the prettiest!" She narrowed her eyes at a slender girl in the crowd. "Jealous that your boyfriends couldn't stop jerking off over my tits. Isn't that right, Karin?"

The slender girl, Karin, suddenly went hot with rage. She leapt for Mary only to be restrained by her compatriots. Mary's cruel laughter made her breasts wobble, her clothes straining tighter and tighter around her. When Karin's rage had reduced from a maelstrom to an intense simmer, the rest of the cheerleaders slowly let go of her, freeing her to take a step towards her former team captain. She didn't say a word, though. She didn't have to. All she did was reach down, spreading her arms out to put her hands on either side of the colossal, growing udders in front of her, and squeeze.

An anguished cry ripped out of Mary's throat. She was full of milk and growing fuller by the second, put a pair of clamps over her nipples made sure that the milk had nowhere to grow. Putting pressure on her udders like that just reminded Mary of how full she was. Her tits were full. Her tits sloshed. Her tits ached for release.

Mary needed to be milked.

She almost begged for it. Mary's mouth opened to do so, but her pride cut her short. She could endure the pain. For now. For how much longer, she couldn't say. She could only hope that she was still able to stand when she got there.

Cruelty and anger twisted Karin's expression, but there was no smile to be had. She only held anger in her heart. "You know what, Mary? You win! You're right. You were such a better cheerleader than the rest of us. You really brought out the crowds, people showing up just to watch you bounce around like a fucking cow. And you won Colin, too! Fucking have him! You deserve a cheating pig like him. The pig and the cow. And now more of a cow than ever." Karin put her hand on the front of Mary's breast, her nipple resting in the angle between Karin's forefinger and thumb. Mary squirmed and whimpered. It was so close to being milked; if it weren't for those damn clamps, she'd be spraying milk across the room. All she could do was twist and writhe, clamping her eyes shut.

A sharp pain pierced her breast, forcing a cry from her throat. When her eyes opened, she saw that yet another does of the growth formula had been forced into her tit. Fear gripped Mary. The other girls on the team quietly admonished Karin for being so cruel, but none of them could honestly claim that they wouldn't have done the same. Karin let out a triumphant humph! and turned away from the growing cow. "Come on, girls. Let's get out of here. I don't want to get caught in the crossfire when the pressure forces those clamps off of her." They all quietly nodded in agreement and turned towards the door. One of them turned around and snapped a picture of the trapped and growing Mary. Laughter erupted as she showed the picture to the other cheerleaders.

Then the door closed.

Mary was alone.

Silence rushed in on her. All she could hear was her own heartbeat thundering in hear ears, the creaking of her clothes as they reached their limits, and the faint sound of sloshing deep within her growing breasts.