I wouldn't bet my ass on it

Listening again all Monica heard was the approaching footsteps of her classmates. It seemed Aurora had left to get lunch. Monica felt a little hungry too, but she could eat after P.E. Finally relaxing she decided to get dressed before she was found standing bottomless. Pulling out her shorts she pulled them on and immediately knew something was wrong.

For a second Monica was confused, her shorts seemed different. Had they shrunk in the wash?

Then she realized, those 'towels' she had been using were material from her shorts. Somehow Aurora had taken all the extra fabric from her shorts. Even though she had bought them baggy to hide her body, now they were barely covering anything. in fact, looking at the blouse it seemed shorter too. Now she couldn't even hide what these tiny shorts revealed.

If she couldn't still see the XL tag inside the shorts then she would've believed it had just been replaced with a smaller size. The clothes themselves looked untampered with, like they were always this way. But the extra material was taken and made into two small towels. As she thought that it was like magic Monica could've kicked herself. Of course it was magic.

So caught up in cursing herself, Aurora and her tiny new clothes, she didn't realize that the locker room had started to fill. Until the first whisper reached her. "Where was she hiding that?", whispered an unknown voice. Others followed with wondering if it had shrinked in the wash and even commenting on how pale her cheeks were.

Her cheeks? Taking a second look Monica really took in the damage. The shirt seemed to be normal, stopping a little below her bellybutton, if shorter than she was used to. But the shorts..... The shorts covered less than some of her panties used to. Not only was her crack showing, but about half of the pale globes of her ass was now basically framed by her shrunken shorts. These were even less modest than actual booty shorts would be.

So caught up in the exposure of her sizeable assets in the back, Monica failed to take note of how close to exposure her front was. The narrowed front and seat of the shorts barely contained her bare lips...for now.

Aurora, just entering the locker room saw her 'little sister' pretending to be impassive, but the blush on her cute cheeks gave away her embarrassment and her face was red too. She'd soon give her something to be embarrassed about, it was past time her little shows were shared with their schoolmates.

Monica wanted to hide. She could feel the countless eyes on her cheeks as she moved to the coach's office to try and get out of doing any sort of activity like this. Maybe if she begged her ...