I have limited experience with men, but for me it has a lot to do with the taboo of it. How men aren't supposed to be doing this with other men, which just makes it all the more erotic to do it secretly. I don't find other men attractive generally speaking, but when I'm on sites like this if I get some sexual attention from men I end up fantasizing about it. It took a long time to go from fantasy to reality, but once I did it felt very natural to me. And I still love women, and cum looking at them all the time. I think I just like the attention coming from another man, which in a way allows me to know what it's like for a woman in that sense, of being able to make a man cum....if that makes sense?