Wait them out

Bill stayed in the stall as the two girls chatted and, he was fairly sure, did their makeup. It was all he could do to keep from banging his head against the door of the stall. Finally, after what must have been about 20 minutes, they left and he felt safe in exiting the stall. Hefting his bag, he took a few steps only to freeze as he saw his reflection in the mirror.

He had looked maybe a little younger after his transformation. He wasn't the best judge, really, and he could have been misjudging because he was used to his original male face. But looking at his reflection now, there was no question that he looked younger. The woman... no, the girl reflected in the mirror had no chance of being over 20. If she was much older than 18 he would have been surprised. His hair had grown, too, now settling around the base of his neck.

His clothes had changed, too. The sweater was still large, but not as much as it had been. The size seemed deliberate now, especially with how the collar hung to one side, exposing shoulder and bra strap. A strap to a bra he hadn't been wearing earlier. His slacks were more form fitting and elastic, now yoga pants. His shoes had become slip ons.

"How the hell did this happen?" Bill asked, approaching and leaning toward the mirror. He was almost positive he was wearing makeup now, too. "Fuck, what do I do now?" He could leave and try to figure this out. Clearly some aspect of that damn curse was still at play. He was expected to return today, though. If he didn't there would be repercussions. He could go talk to the principal and try to figure things out with him, or maybe one of his teacher friends were in and they could help him decide what to do.