I Finally 'Get' The Fluidity of Gender Idea

I have always accepted the idea of a sliding scale of human sexuality, but it never quite 'clicked' with me until now. Thinking of men, if a 'straight' dude had a sexual experience with another man, people would say "well then he's gay, or at least bi" and I always felt the same way (I would have said bi) although I didn't ascribe  any morality to it. I could not understand how a 'straight' dude could fool around with a gay guy and still be 'straight.' I mean, if you like girls you like girls, right? If you are into guys how could you possibly be with one in that way?

And then today it dawned on me. Well wait, we don't ascribe any sexual categories or morality onto masturbatory practices. You're not into dildos or a man's hand (it's yours but it's a man's), watermelons, etc. You just use them to get off. Everyone accepts that. No one makes sweeping/black and white statements about your sexuality based on these factors. And it was this thought that sparked the realization that well wait, why can't a person of the same gender be used in that way? Given the right circumstances, I could see how a person could use someone of the same sex in that way and how that would not speak to their preferences in terms of attraction.