Tom Watson started out sexually servicing his mother and two sisters before he even had a girlfriend. By a quirk of circumstances, he and his girlfriend saved his middle school from an attack by some Muslim terrorists, and killed four of the terrorists in the process. Guess what: this got them thrown out of school. Eventually, those two and Tom's sister became vigilantes. Of course, for fun, there was a lot of sex.
Hogwarts Professor of Herbology, Neville Longbottom, a legend in the wizarding world is surprised to be confronted by a girl bearing a marked resemblance to his lost love, Luna Lovegood.
A Story in the Erotic Future Universe
More than a dozen years after the events in Nappies and Bills, Jack invites his first serious girlfriend to spend a weekend with the family. Her parents would never have allowed it, except his Mum was deputy head of their school. Nothing unexpected could happen...