Every male mammal above the level of a shrew is bisexual and that includes every human being. Yes, in some species' (mostly plant eaters) it's a simple dominance thing. In most of the primates it's a friendship thing. Then we get to homo sapiens and "morals" rear their ugly head. (In reptiles and birds, it's pure color prejudice).
Yeah, as a child it's "show me yours, I'll show you mine", whether the other party is same or other gender. Harmless, but these days would get both participants (at least the male(s) if there was a difference in gender) on a Megan's list for life.
Yes, I did my experimentation in my early 20s. Good friend assigned to the hospital at the air base I was stationed at. I'm not gay, we stayed friends. His eventual life-partner was the first in history to get a medical discharge due to admitting homosexual fantasies to a USAF psychiatrist. (Mind you, Tim and DJ had been living together for a year by then).
Of course, at the time I experimented with DJ (it was a long weekend and a case of California champagne) I was already polyandrous (look it up), but my wife and cohusband were three thousand miles away. (They were "legally" married" so they were stationed together at Eglin in Florida, I could not be stationed with them as the USAF did not recognize any form of marriage except M/F monogamy)\
There's all this hooraw about "gay marriage" and whether or not governments should recognize it. Yeah verily, fuck that. Government has no business in marriage. Marriage is a private contract between two (or more) people (and their g-d if they have one). The government gets involved because they want taxes and to control morals that are none of their fucking business.
Sorry about the "graphic" (which means writing) language. I could have used the word "damned" instead of the word "fucking", but that's just replacing obscenity with profanity and in some cultures profanity is worse than obscenity (read anything by Dante sometime). (Anybody doesn't know the difference, look it the damned fuck up, try Google or even dictionary.com).
Ward
Then again there's this bit about understanding sexual orientation by another straight guy, Ron White.
YouTube - RON WHITE- "Do You Like Porn" ??