Kate coughed a little as she headed up the stairs to her attic. “Sure is dusty up here, huh?” She craned her head around looking at all the assorted boxes and random junk that had been stuffed up here over the years. “Guess that’s what happens when you never clean this place out,” she mumbled. The young woman stepped around boxes and climbed over some stacks before reaching one of the windows high up by where the roof came to a point. Kate had to stand on some boxes to reach it and balance against the weight of her prodigious bust, but the crisp spring air flowing into the room felt good. She followed through on the window on the opposite wall.

“Hopefully we’ll get a breeze going through here that’ll take some of this dust out.” Kate whittled away the hours going through all the things stored in her attic; most of it was junk- knickknacks from her grandparents’ time, old newspapers, crumbling old furniture. As the piles of clutter in the attic diminished and the piles of trash and recycling piled up on the bottom floors, Kate was slowly running out of steam. Resting her butt on a tower of boxes—it was hard to lean on things with curves like hers—Kate pulled her dark hair up into a quick ponytail and brushed her t shirt and leggings off. “Just a little bit more, then I’ll stop for lunch.”

She pulled herself back to standing on her own and started moving more boxes. At this point, Kate barely even looked at the contents; they were mostly bogus periodicals from decades ago that were being stored for who-knows-why. After huffing and puffing her way down the stairs with everything, Kate found an ornate looking wardrobe hiding behind the piles of trash in the attic.

“Oh, what’s this hiding in my attic? It’s beautiful,” she whispered, inexplicably drawn to opening it. Kate expected it to be empty, but upon opening it she found a singular item- a light blue cocktail dress. She took it out and pulled the hanger out of the dress, tossing it back into the wardrobe. Kate held the dress up, admiring the high quality of the stitching and design, and held it against her body to judge the fit on her. To her surprise, it looked like the dress should go on well enough. It was the right length and good distance across- although, amazingly, maybe a little loose in the chest and hips, but she could have that taken in if she wanted.

As she looked at the dress, Kate was more and more drawn to it. She felt like trying it on—she couldn’t think of a rational reason why, but a yearning in her head wouldn’t go away—so Kate found herself laying the dress down in the wardrobe and carefully stripping herself of clothes in the attic. Down to just her underwear and bra, Kate took a second to gaze at her nearly-naked form. Even after all these years, she was still a little shocked by the exaggerated curves she boasted. The pale young woman grabbed the bottom hem of the dress and pulled it over her head, fighting with the garment to get the less-curved parts of it around her tits and ass.

Without a mirror around, Kate did her best to check out how she looked in her new-found dress. She liked how the color paired with her milky-white skin and how the cut of the dress actually fit her everywhere. As she looked around at herself, Kate felt the surprising sensation of the dress becoming tighter on her. It had been a little loose, but any extra slack was slowly being taken up by her now-swelling curves. A little taken aback, her hands ran over her plush body as it added on more cushiony softness to her figure. Kate was already naturally very curvy, with boobs nearly covering her down to the hips and a butt to match, but as she stared, unable to will herself to move, she was growing bigger, testing the fabric of the newly found dress.

“What is- how is this happening?!” Flesh was welling over the straps of the dress and her cleavage was becoming obscene, pushing up to her neck. Kate pressed her hands into her tits, a gentle moan escaping as she discovered the unexpected but not unwelcome pleasure of her growing boobs. “Mmmmf,” she mewled, “Oh, oooohhhh…” she trailed off as she lost herself in the feeling of her growth. The lower hem of the dress was rising along her legs as her butt plumped up too; Kate’s hands trailed down her sides to her hips and then her butt. A similar wave of pleasure washed through her as Kate gripped her swelling cheeks, and she wobbled on her feet a little before tumbling onto her knees. Her movement continued into sitting on her haunches; the thickening cushion of her butt pushed her up more and more every moment.

Suddenly, the growth picked up, and rips and tears surfaced in the fabric of Kate’s dress, revealing growing fields of pale skin. Kate was a mess as she continued growing; she was being overwhelmed by the incredible sensation of her skin stretching and tearing through the dress. Two huge holes were sprouting between her boobs and in the center of her butt in the back. The holes spread and spread as she grew larger, now resembling tits and an ass with barely a body to hold them together. Kate’s arms splayed out to the sides of her as she fell forward, pulled by the weight of her gigantic tits, and she landed with a little shock of pain as she landed on top of her boobs. The twin bean bags quickly were pushing her almost straight up again as her butt worked to do the same.

Kate breathed a heavy sigh of relief as she finally split her way out of the dress on either side, and her bloating tits and ass burst into their newly captured freedom. She started to panic a little as she watched her breasts continue to grow and begin to push things out of their way- piles of boxes, loose junk, anything in their way, really. Nothing could stop the oncoming tide of Kate’s tits. She jumped in shock as she felt her butt hit the wall behind her- there was nowhere for her to go now but forward, and her breasts were happily doing just that. The upper limit of her breasts was rising to eye-level, blocking out what she could see. Kate couldn’t imagine how big her nipples must be at this point, but she figured they had to be enormous to match the sea of boob in front of her.

Her nipples grazed the far wall and she felt the growth finally… finally… slow down, and then stop. Kate tried to stand on her toes to see over the tit wall, but she was effectively wedged in between her breasts and her butt. “Oh… if only I could be a little smaller! This attic is full of me!” Kate thought she might have felt herself shrink down just a touch…