Laura admired the large dumptruck Rachel was bouncing around like a pro, probably because she made it her job. The bouncing looked sexy, Rachel was squatting with her arms behind her head and no sign of flinching, she prominently showed her wet cameltoe when she could and her cheeks clapped to the rhythm of beat. Her head in the clouds (and hand in her pants), Laura inadvertently said aloud "I wish I was like her".
She only realised her mistake when she heard the remote beep and felt a warmth coming from her behind, her pants starting to tighten up. With quick reflexes, Laura quickly added "I'm wearing incredibly stretchy yoga pants!", relieved as her jeans became black yoga pants and the straining against her growing butt diminished. Of course, she was still growing, now sporting a nice heart shaped bubble butt and her thighs thickening so much she had to put her balls on the front if she didn't want them to be squeezed, making her bulge all the more noticeable. A part of her wanted to reverse the change, it was an accident, she didn't mean to...
But a part of her was turned on specifically because it was accidental. "So lewd and degrading too", she thought, standing up to look at her rump, now bigger than Kim Kardashian's and starting to jiggle with the slightest of movements. She grabbed one of her cheeks, feeling up her growing flesh and to her surprise, it felt good as she bit her lips. She started to like the music more and more as she closed her eyes, not realising she was starting to tap her foot to the beat, making her ass jiggle more and more. She cooed "Fuck, I just want to throw it back~" as her ass finished to grow at its enormous size, her pants stretched to her knees by the two basketballs that served as her cheeks, and she noticed her memories being changed as she started to twerk, her hands on her knees.
Laura remembered her teenage years a bit differently, with boys being attracted to her dumptruck ass and girls being jealous. And now, her art stuff was just a hobby, her real job was at the cafe and working her fat ass to attract customers. Speaking of which, when she opened her eyes, Laura found herself expertly dancing and gyrating her hips, the customers staring at her large rump. She noticed Ricky ("Huh, now I know the waitress' name. Figures, I work here", she thought) was timidly pointing her towards Rachel's spot, her now co-worker. Knowing what to do, she went to the wall, noticing the large sways her wide hips did and the stain on her pants, no doubt caused by her leaking cock and her wet pussy due to how horny she was. Seeing that Rachel was squatting and putting her hands behind her back, Laura opted to bend over the wall and shake her massive booty up and down. She thought "I'm loving this~ and if I ever get bored, I'll just change stuff to make it more exciting and sexier~"