It was Biff, the captain of the basketball team, and a notorious bully.
"Um, nothing, Biff!" said Jon, uncertainly.
Karyn grabbed beneath Jon's penis and grew his balls back. Again, she erred on the large size, just in case.
It was lucky that she did, because Biff poked his head over the top of the toilet stall door a second later.
Biff, being the captain of the basketball team, was tall enough that he could peek over the doors of the toilets. He was surprised to see Jon standing in front of the toilet with his pants pulled down, sporting a fairly large, but completely hairless, cock and balls.
"What the hell, are you shaving your junk in here or something?" said Biff in a loud voice.
Jon yanked his pants up, nearly catching Karyn's hand in the process. His face turned bright red, as Biff laughed loudly.