I can't stop thinking about how sexy my boss is... help!?

He is so handsome. He is tall and has broad shoulders and he has nice clean blond hair. He wears impeccable suits and he has this aristocratic nose. It's very sexy. Oh and he not my boss per se since I don't really have a boss and I work in a completely different branch than him but he is higher level than me if that makes sense. We have talked before and he seemed to like me but he is married and I feel we are getting too close and I just don't want ruin anyone's marriage. How can I make myself to stop thinking about him and talking to him? :/