Forbidden? It's not forbidden. Is it? (Student/teacher relationship)

(Teacher only 21!) Cheryl has always had a fairly simple life. Well, that all changes when she meets her new headmaster and, gosh, is he sexy! While trying to get used to boarding school life, she also has to deal with those feelings she has for the head. Will she be able to control them? Or will she crack under the pressure and find that all isn't how it seems?