I think you’ve made that clear in a few threads. lol
What turns you on about it?
If the “gay” guy is discovering he’s been bisexual all along, does that take away any of the titillation for you? Or does the fact that he’s now converted to bisexuality (or heterosexuality) turn you on even more?
What happens if he tried it, with the help of viagra, money incentives or together with another guy (so he could be aroused), and says, “nah, it’s not for me,” and never does it again- is that a turn off for you?