I've slept a few times in the same bed with str8 guys and nothing happened.

Once with a guy who I thought was str8 but things turned out differently. He knew I played with both and when I woke up, his hand was on my morning wood. We took it from there. lol

In high school we went to a convention and slept four to a room. I had a dream that a girl was rubbing my ass. Just as I moved it to rub back, I woke up and his butt was up against mine and we were rubbing them together! I just moved away and went back to sleep.