I have been on this kick lately watching str8 porn when there is a certain level of homoerotism involved. I am not talking about bi porn where it is obvious, I mean the more subtle, considered str8, marketed for str8 men. I especially love it when a guy accidently cums on another guy and either the guy is repulsed or doesn't seem to mind, there is something hot about either scenario. My favorite are DP scenes, will post some later. I wish I remember where I saw it, but there was this porn blooper in which a guy overshoots the girl and hits the cameraman in the face, and he was disgusted, screamed cut, and asked for a towel.
So anyway, I ran across this scene and about 32 minutes into it, I busted a nut. There was a very gay moment, with a guy getting splashed in the face with cum from another guy while sucking on a breast, doesn't seem to mind, and even tastes a little of it. The whole scene is very homoerotic, but that moment did it for me. I would love to see more videos of this sort of thing.