Oggling schoolgirls is not really a healthy past time for a fully grown man. Of course it's not abuse - but if you took them to bed and didn't lay a finger on them I would still think you had done it to fulfil some basic sexual need. Likewise, taking teenage boys to bed because it makes you feel good is abusing the situation if not the body. It's corrupt. Whether any good would come of punishing him is doubtful.
Therapy would be more appropriate.
Still, what about that Rolling Stone who, at quite a grand age, had an inadvisable relationship with a 13 year old girl?