My straight men friends do not hit on me or other straight men. One occasion a very straight man friend of mine was recovering from a traumatic time in his life, he was staying with me while he got things back in order, he got very very drunk one night and we started to talk, as well as a very intoxicated man can talk. We talked about relationships, sex, and his trouble that night, I went to the kitchen and he followed me, he then pushed me against the wall, and planted a kiss on me that ended all kisses, his hands were straying to my crotch and my chest. It only lasted about 5 minutes, I was too stunned to move. He said he always wanted to show me how much he loved me because I was a constant part of his life, and always supported him in anyway he needed the way friends really support each other, and not run away at the sign of trouble.
Anyway the next day he apologized and was very embarrased, I told him friends don't judge each other for their actions, I will always be there for him regardless of what he choose to do. I lightened the mood, by telling him that was one of the best kisses I have had planted on me. That was true.
My point, straight men can do things of a sexual nature when they are not quite themselves, and feel very comfortable with the other man they are with. We have known each other for over 25 years. We are still best friends and he is now doing better.