I really don't feel that people are always locked in a specific catagory, all neat and clean and locked in a box. When I was eighteen (a long, long time ago) I sometimes mentioned that I was pan-sexual in my view, as in open to just about anything. This, naturally, was shocking to my peers but since I was getting nowhere sexually with anyone of any gender it was actually rather academic. To me, the fact that my eyes were in my head, and not in my penis, sort of hinted it didn't really care where it wound up as long as the destination was warm and moist.
I have spent most waking moments largely heterosexual, to which I attribute the existence of my two wonderful kids, but there have been times when I have been attracted to men though never actually enough to risk public opprobrium (just love that spell checker ) by acting on the urges. As I got older I sort of drifted into an asexual state which now, at seventy, suits me just fine.
I marvel, sometimes, at how passionate people can be about their sexuality, to the degree that it is a very significant part of their daily existence. I cannot claim to ever having been that obsessed with it. I almost always enjoyed the sexual act, but chocolate...