Ty looked around after deciding to mess around with the class. He thought about giving each boy and himself four girls to have sex with, but he dismissed the idea. He wasn't into sex slaves. He thought about inflating his class, and the idea progressed further. "How to inflate them?", thought Ty. He looked at the chests of some of the girls. Most of them were flat, with a few B cups hear and there. He looked at their butts, and saw that they were also flat. Ty leaned back in his chair and closed his eyes.
"So," thought Ty, "I could inflate them by giving them big boobs and butts. But what about belly? Maybe some full body inflation, or berry inflation, or giantess growth?! The possibilities are astounding!" Ty sat up and opened his eyes after a few minutes. He looked over at the three other guys talking, and overheard them talking about how small their dicks were. Ty smirked, knowing what part of their body he would inflate. Ty was thinking about what to do when the sub was called to the front office to pick up a package. After she left the room, Ty seized the opportunity and used it.
Ty looked at the two girls next to him and thought about them transforming. Ty thought about...