You don't say if either one of you watches porn. If not try to bring the subject up and say you wondered about the movies. Let him know it would be nice to explore it together. Watch them together and the one time get one that shows black on white and go down on him. If he likes it then start asking if he liked what he say. Depending upon what he says lead the conversation into would he like to see you do the same. Hopefully while you are fucking him. If he says yes then make him think it's his idea, set it up and go for it.
|