Ty's next class was science, his least favourite subject.
"Wait a minute..." he said to himself,"... I can make class this class my own personal science project. I wish that that every 5 minutes all the girls will become slightly more masculine until they are complete boys.
Ty sat back and waited for the changes to begin.
All the girls began to experience a different kind of puberty change. Their brests become bigger pectoral muscles, body hair grew out and become dense chest hair, their muscles will grew slighly bigger. A bulge grew between their masculine legs as their vaginas grew bigger becoming cocks. No one, apart from Ty, seemed to noticed the changes that were taking place.
"Well..." Ty thought to himself. "... time to sit back and enjoy the fun."