It’s a little big, Maddie.
She placed the garment back down on the table in front of her and turned to the note.
Cassidy-
I know it looks too big for you. Don’t worry though! Just try it on. I promise it’ll fit… soon. And once you have the bust to fill it out, you might want to go expand your wardrobe? Find some shirts to fit in, and maybe some pants too. Or maybe that skirt you’ve been eyeing but think your butt can’t fill out? Just a suggestion! Happy birthday!
Love,
Madeline
She’s officially gone off the deep end. Alright, Maddie, I’ll humor you… Cassidy marched to her room, bra in hand, and she shut the door- the college student’s roommates were out for the day, but she still wanted to make sure she had her privacy. The lithe young woman slipped out of her shirt, and let it flutter to the floor. She reached her hands back and unhooked her bra, and the garment joined her shirt. Cassidy picked up the gift bra and pulled the straps over her shoulders. She pulled the end of her brunette ponytail out of one of the straps. Setting her comparatively tiny breasts into the cups, she hooked the clasp in the back and stood, contemplating how ridiculous she looked as she caught sight of herself in a mirror.
Cassidy stood, waiting to see if anything would happen. After a while, it seemed like nothing would, so Cassidy started to take the bra off when she felt something… different. She looked back in the mirror and saw her chest billowing out into the cups, her breasts steadily growing to fill it. Over a few seconds, she watched herself steadily grow bustier. Her jaw dropped gently as she saw her mounting bust, and it filled the bra cups completely.
Shocked, Cassidy unhooked the bra and pulled it off, marveling at her tits for a second, then looking at the size tag on the bra. 32F? Damn, Maddie. She dropped the bra and focused on what was much more interesting- her new boobs. They were each more than a handful, probably close to the size of cantaloupes. She hefted her melon-boobs, feeling their weight shift as she played with them a little.
Her mind turned to exactly what Maddie had done to her, and walked back into the common room, tits out, not caring if anyone was there now. She reread the letter from her cousin. Seems like anything will fit me now… Cassidy’s mind turned devious, thinking of what she could do with this ability. She jumped slightly as she heard her phone vibrate on the table. She picked up and opened a text from Maddie.
Do you like your birthday present?
She contemplated how to respond for a second. On the one hand, yes, her new boobs looked great, but on the other hand… well, it would be pretty noticeable that she suddenly sprouted from an A cup to an F in the course of a day.
I love it, but won’t my new… developments be kinda noticeable?
While waiting for a response, Cassidy decided to test the effects of Maddie’s gift. There was a skirt she’d bought that was too large for her…
Walking back into her room, Cassidy dug through her closet, looking for the skirt in question. Her enlarged breasts shook with her frantic movement, until she finally pulled the garment out of a pile of clean but unsorted laundry. Her jeans fell to the ground as she shimmied out of it, leaving her in just her underwear. Pulling the skirt up over her thin legs, Cassidy felt the magic begin quicker than it did the first time.
She felt her skin stretching slightly as her hips widened and her butt bulged behind her. Cassidy rested a hand on her growing form and struck different poses in her mirror, sticking her plumping butt out and cocking her hips to a side. She slowly realized that her thighs were keeping pace too, and her legs gained a good bit of mass as she filled out the skirt just like she had her bra. Just like that, Cassidy had an hourglass figure she’d never imagined possessing. She pulled the skirt off, and marveled at her impressively wide hips. Spinning around, she observed all the new mass of her curves. Facing her butt towards the mirror, Cassidy gave it a quick slap and watched as all her flesh jiggled for longer than she expected. It’s kind of mesmerizing, to be honest, she thought as her eyes followed the movement of her ass. She almost forgot the actually had panties on, since they were so overwhelmed by her generous butt.
A piece of clothing on top of her pile of laundry caught Cassidy’s eye, and she walked over to pick it up. It was a sweater, light blue, one that her mom had given to her; she had given the same one to Maddie. Mom thinks it’s so cute when we match. The sweater itself was loose, she could probably fit at least one of her roommates in it with her. This might be the only shirt I have that fits now… it’s either this or being walking cleavage in a blouse.
The sweater floated down on top of her shoulders; Cassidy felt like she was swimming in it. Who decided clothes needed to be cut like this, anyway?
She suddenly felt woozy as an intense wave of her cousin’s magic swept over her. Before she could do anything, Cassidy’s bust was growing again, swelling too large for her new bra. Her boobs were flowing over the tops of the bra cups, then steadily began to push below them as well, her growing tits putting more strain on the band than it could handle. The clasp broke apart, releasing the tension, allowing her breasts to settle into a more natural shape. Cassidy pulled the broken garment out through the large neck hole in the sweater, and watched helplessly as she continued ballooning up.
Cassidy was leaving most of the melon-sized world behind, quickly approaching sizes that could only be described with different sports balls, or even more dramatically, just… huge. Her plump nipples were rubbing along the knitted fabric, sending sparks of pleasure through her nervous system. A small moan escaped her before she pulled herself back to the reality of her tits growing larger than watermelons. They were rapidly approaching her belly button; naked, they would have obscured most of her torso and some of her arms. Within a few more moments, Cassidy comfortably filled the sweater out, the fabric stretching around her vast bosom.
The young woman stood, gaping at herself, wondering how on earth she could go out in public like this. Her breasts were way larger than she’d ever want them, and besides that- boobs this size were sure to attract the attention of anyone on the street. Cassidy heard her phone buzz, and she wobbled over to her bed where she’d left it, trying to ignore the intense sensation from her nipples rubbing back and forth on the sweater.
Maddie had replied. Nope! As far as everyone knows, you’ve always been… whatever size you are now. How’s it going?
She quickly typed an answer. Well, I have the butt of my dreams but my tits are more like beach balls than breasts.
The typing bubble appeared shortly so Cassidy held onto her phone. Try putting something else on. A regular t shirt shooooould shrink you down. Just put your arms in and drape it over your boobs!
“I knew Maddie was kinda weird, but this is something else entirely. Alright,” she said, grabbing the t shirt she’d pulled off earlier that morning. She did just like Maddie said, and pulled her head and arms through their respective holes and let it sit on top of her immense bust. For longer than she expected, nothing happened. Slowly, Cassidy thought she saw her boobs start to shrink a little. As it continued, it became more obvious that she was getting smaller—more reasonably sized—and Cassidy was glad she wouldn’t have to lug around those monstrosities.
After a few minutes, Cassidy had gotten down to a size she could squeeze a bra around, and did just that. Disappointed to be back to her original size, and with the gifted bra now broken, her mind was made up.
This calls for a shopping spree. And I don’t have to worry about not fitting into anything!
Cassidy, still bottom-heavy from her skirt, walked into town from her college campus. She’d pulled a hoodie on—which she luckily didn’t start growing into—and braced herself for the chilly autumn weather. She’d caught more than a few guys risking stares at her butt as she passed; no one she cared about, but at least they didn’t say anything. Listen guys, I know I fill out these leggings better than most, but did no one teach you any manners?
A few minutes of walking, and Cassidy had reached her destination: the specialty bra shop on the edge of downtown. It still had regular sized bras, so her visit wasn’t too strange… but that’s not what she was here for.
Time to decide my bra size. Cassidy laughed to herself, trying to keep her amused expression to a minimum.
“Can I help you with anything today, miss?” Cassidy was taken out of her reverie by the sales associate.
“Oh! No, I’m okay, just looking around. I’ll come find you if I need anything, though.” She continued walking towards the back, where the larger sizes were kept. What brought her here appeared before her as Cassidy reached the back wall. Covering it were downright huge bras, some larger than the one Maddie had sent her for her birthday. Hmmm… gotta balance this butt out somehow. Now, which one? She scanned the wall, looking for the exact right bra when one caught her eye. It wasn’t the prettiest, or the most well-made, but it was the largest she saw.
Cassidy pulled it off its hook and rushed to a fitting room to try it on. She closed and locked the door behind her, and eagerly stripped off her t shirt and soon-to-be-useless bra. She picked up and observed the bra now, in closer detail. These cups are so big, she thought. She could fit her head in them, and then some. Excited, Cassidy put her arms under the straps and pulled them up to her shoulders. She settled her very outmatched boobs into it, and clasped the back, impatiently awaiting the magic to take hold.
It began like it had before, and Cassidy smiled as she felt her bust start to swell into the cups. Her eyes gleamed as she watched herself grow towards a familiar level of bustiness, her thickening nipples inching closer to the cups of her bra. Similar erotic feelings accompanied her growth again, and little whispers of pleasure coursed through her, growing stronger as she grew larger.
Cassidy bit her lip and smirked as she felt the feelings strengthen, she couldn’t wait until she was done growing so she could see what her tits felt like. Her boobs pushed out larger than her other size, her birthday-gift size, and she couldn’t help but realize that big breasts were heavy.
Maybe I can get Maddie to do something about that, she thought. Cassidy felt her skin gently touch the bra, and she began twisting and turning to observe her bust at different angles. They were well past head sized, if anything looking like volleyballs now. Her skin now pushed into the cups, and there they rested, the biggest boobs Cassidy had ever seen. Her hands drifted up to them, and, giving them a gentle squeeze, she couldn’t stop the moan that welled up inside her. Cassidy’s breasts felt almost too good, and she got more and more into fondling herself, her ministrations steadily growing stronger.
She felt tingling spread between her thighs, and she kept playing with her tits, her moan sounding louder and louder until she suddenly came back to reality and realized she was still in the dressing room. She quickly took the bra off—she had to pay for it, of course—and pulled her hoodie over her exaggerated form. She filled out the sweatshirt nicely, and was glad for not feeling any new growth. She paid for the garment as quickly as possible, and briskly walked back to her dorm, not entirely oblivious to the stares she was getting in the street. Her boobs bounced obscenely with each step, bounding up and down within her sweatshirt. That, accompanied by the swaying of her generous hips, was enough to catch the eyes of most of the people she passed by.
Finally back in her dorm—and her roommates were still gone, to her delight—Cassidy pulled her door shut behind her, locking herself in her room. She pulled the hoodie off, letting her huge breasts tumble out of it, bouncing and swaying slightly with her movement. Cassidy slipped out of her leggings and tumbled onto her bed, then shimmied out of her underwear as well. She gently began working one of her nipples, and let a small mewl of pleasure escape her lips. Her hand started to work harder, harder, as her other hand grasped a fistful of bed sheets. Her toes curled.
This feels sooooooo good, she thought, as she decided to let her other hand wander between her thighs. It was too much, she couldn’t resist. She slowly started to work herself up, feeling herself steadily become more lubricated. Cassidy aggressively pinched a nipple as she plunged two fingers into herself, and quickly began pulsing in and out, her first hand not ceasing in playing with her huge tits. Her eyes stared up dazedly at the ceiling, unable to focus on anything as the pleasure coursed through her. She was trying to stifle her moans, but then remembered her roommates were out and she lived at the end of the hallway…
Her cries of enjoyment rung out inside her room, echoing on the hard walls. Quickly enough, she was approaching her first climax. She was leaking out onto her sheets- she’d have to do laundry later, but she didn’t care at the moment. Cassidy’s orgasm struck, and she vanished into her own personal heaven for… she didn’t know how long. When she came back down, her fingers were developing little prunes and she was sure she’d soaked right down to the mattress.
Sitting up, Cassidy decided a course of action. First, she had to clean herself up, then her sheets. As she sat up, she was reminded of how much of her torso her new boobs took up. She headed to the in-suite shower and put her plan into action…
-
Cassidy picked up her phone, typing a text to her cousin, laptop on her bed next to her.
Maddie, will I always fill out what I wear? Beyond today, I mean.
She hit send as she started filling out measurements for a custom bra.