I had bi sex with my foster dad for years. He wasnt attracted to men it was just the taboo act of old/young perv that turned him onto the sex. He would get a thrill if i blew him while his wife was in the next room folding clothes or if he was on the phone with her we'd go up to the marital bedroom and he would bareback back me while he talked to his wife. our most risky sex was a road trip and she was driving and me and foster dad laid in the back close. he stuck his cock in my ass and we laid there pretending to nap as he gently thrusted for an hour eventually cuming inside me.