Fixing Jon's "little problem"

Jon went into the toilet stall and Karyn slipped in behind him. The other guys in the locker room were laughing and joking, so Karyn could whisper a little louder without being overheard. "OK Jon, I'm here... drop your pants!" she whispered. Jon pulled his pants and underwear down, exposing his tiny, hairless, ball-less crotch. Karyn giggled again. Jon's face turned bright red. "Just hurry up and ifx it, OK?" he said in a low voice. "Yeah, yeah, keep your pants on... or off... hee hee" whispered Karyn. She stared at his tiny penis and imagined it getting bigger. To her delight, it worked - she grew it back to a normal, or maybe slightly bigger than normal size. "What about the... um... *other* stuff?" said Jon in a loud whisper. Karyn said "Yeah, just wait!", and concentrated on making Jon's balls grow back. Nothing happened - and Karyn realized that, since they were too small for her to **see**, she would have to **touch** them to make them grow back. Karyn gingerly reached underneath Jon's penis. Because she'd been running around the school naked, her fingers were cold - Jon yelped at her touch. Suddenly a loud voice outside of the bathroom stall said "Hey jerkwad, what are you doing in there?!?" Karyn and Jon both jumped in surprise. It was...