I used to date a guy who used to be a sweetheart, until he turned into a controlling freak. Toward the end of the relationship, I would stop having sex with him for weeks at a time and fuck his "best friend" who he kept away from me because his friend was an "asshole and a womanizer" and I'll add he had a much nicer package too. After fucking his friend I'd usually agree to let him go down on me or do 69 with him. I found it funny how at the same time this was going on he was complaining to his friend that I just lay there in bed. His friend played it off