Later that day, Katie and Tiff met up for gym class and went into the locker room to change. Katie always hated this part of the day, since her chest was obviously less developed than the 8th graders that changed in the room right before them. Tiff, suddenly inspired, spun around as they reached their lockers and asked "Transform or Dare, Katie?"
"Ugh, transform," Katie replied apprehensively. "But I thought we were gonna talk this over before we made any..."
"Yeah, yeah," said Tiff, "but I had a stroke of inspiration. I know how you hate undressing in here without a chest to show for it, so here's your opportunity to change that!"
Tiff walked spun the combination to her locker, undressed (showing off her well filled bra to everyone in the locker) and turned to Katie. "Don't you want that feeling?" she asked. "Don't you want to be envied by the other girls... or at least not ashamed to change in front of other women? Here's the deal Katie... for the entire gym period, your breasts will instantly change to the size of any ball you touch in class... except for the earth of course. The change will not be permanent until the end of the period. Good luck!"
Dumbfounded, Katie hesitated at her locker... waiting for the other girls to look away before she striped off her shirt. "Hmm... the possibilities," she mumbled to herself. "I wonder if it would really work..."
Just then, her hand brushed against something round in her locker....