Hello and welcome!
Quite the read! Being that I've pretty much always been bisexual, myself, this was a very interesting read and only confirms many of my own feelings. Especially:
gnawdol wrote:There was something very psychologically different about being sexual with man. We all agreed that it was seamless. A man knows what to do to please another man like no woman can. At the same time the forbidden act of being intimate and sexual with a man made the experience surreally erotic and very exciting.
I believe it might have been the ancient Greeks or Romans, or perhaps it was one of their philosophers, that noted only a man can truly know exactly how to please another man. For that matter, I believe that probably runs the same with women, as well. Like calls to like, and like understands like.
I hadn't heard of the Hendrick and Eros tests before- I must be slipping. If there was a sex/gender test out there, I generally knew of it and had taken it. In my case, an online variant of the Eros places me definitely up in the Bisexual quadrant; to be specific, 92.9% homosexuality mixed with 62.9% heterosexuality. That's a bit more on the homosexual side than I'm used to seeing from test results, usually on something based on the more one-dimensional Kinsey I'll come out something like 50/50 to 60/40 (gay/straight).
Having had same-sex desires since adolescence, I find it interesting, especially in this thread, to hear from men later in life discovering these desires. When a once-popular bixexual men's forum I used to belong to was a thing, a fair percentage of the members- perhaps even half?- were men who had either come to discover such inclinations, or had rediscovered them after many years of not thinking about them at all, when adolescent experimentation had ended- not my mental experience at all.
Also interesting that you both haven't engaged in any more of the activity, and that your relationship with the three others has turned into a more conventional friendship (though not completely pedestrian). I have read that heterosexual men who engage in male-male sexual activity in places where there are no females present (prison, possibly some militaries, schools, etc) revert back to heterosexual behaviour once removed from the all-male environment. In this case, it does read as if you managed to scratch the itch and satisfy your desire/curiosity and then set further acts aside. I really like the way you were able to be that free and easy with yourself and not let fear of being primarily homosexual get in the way- not sure just anyone could manage that. Now, while I live by choice a heterosexual lifestyle, I have to say that if I'd lived your story, I'd find it very hard, I think, to put that genie back into the bottle- but then again I do think I was born with the the proclivity to be the way I am sexually.