Open Question: Is there a word for someone who is attracted only to what he considers wrong/immoral?

I knew a guy who was sexually attracted to me (I'm a guy), but he also is often infatuated with some women, most of the time girls that are younger than him (he's 19, they're 15). Sometimes I think he likes even younger then lets on. The three girls his own age I know he's fooled around with were all fucked up on drugs or alcohol at the time. He has also described situations in which he is aroused specifically by the knowledge that he shouldn't be aroused, or that he is aroused by the fear or thrill of the possibility of being caught in the act of something. He has said he only likes things he knows are wrong or immoral and has difficulty becoming aroused if he knows someone is interested in him. What is this? Is there a word for it? Do other people have it or is this unique?Read More...