Stepping into the room Jane saw several of Jon's classmates changing for gym class. The woman in Jane knew enough about boys and men not to be surprised, but good girls didn't look at naked and semi-naked boys. Still she felt no interest in the boys, which she suspected was good.
Jane had never been particularly aggressive in sports. As Jon she, she wasn't very aggressive either. Fortunately, the coach was not interested in much more than keeping the boys busy during P.E.
After P.E. (Jane even survived showering and changing back into Jon's street clothes), Jane found she enjoyed being able to eat like a teenage boy. After eating more than she normally would have eaten all day, Jane continued through Jon's classes.
After several more hours, Jane managed to make it through Jon's classes and headed home.
'I wonder what caused this to happen?' Jane wondered as she neared the house. 'It has been interesting being a teenage boy, but I do hope that Jon and I can figure out how to reverse this.'