When I was about 16 or 17 after the math teacher had explained whatever he was teaching us and we were doing the exercises in the book he'd often go and sit with this one girl. You could see her face light up every time he did, she was very coy about it but she enjoyed the attention as she didn't really know anyone in that class. Years later someone told me they were having a full on affair that year (he would have been late 20s, early 30s), and that after they split she turned to women!
