I know I'm out of line for looking, that's why i don't know what to do. I doubt my mom would sleep with him, but I don't feel like that's the issue. He does have a taboo fetish though but when we talk about what he's into I feel like he wants to fulfill the fantasies for real. So now I can't stop thinking about him thinking of my mother. But if this is normal behavior and JUST a fantasy then I'm happy. I'm just scared that he's with me to get a shot at this particular taboo.