I believe every young man on his 18th birthday should have an older woman fuck him until he can't go anymore. I mean fuck him forcefully his dick won't get hard anymore. Prove to him that his dick is not as powerful as a good pussy. Then let him sleep and when he wakes up, teach him how to please a woman correctly. How to eat pussy, how to find the clit and g spot and how to hold back his cum so she has a chance to cum herself. It's even better if he fucks a woman he would normally find less attractive because he needs to learn that ALL women deserve good sex.