ANDY'S ANSWER: As the parent of a son who could get himself in considerable trouble with the law, as well as the psychological damage he can do to the young family member, you have every right to be scared if not terrified for his actions.

It's not abnormal for a boy of his age to be thinking about sex. Every waking moment, as a matter of fact. However, most boys manage to keep themselves under control in private with masturbation, while learning how to woo the favour of a potential mate amongst their peers.