I am pretty damn tired of all the "I'm gay, but I'm not gay!!!" crap you see on most fora, but particularly here on this forum. That is, saying something that paints you as gay and then later recanting saying "I'm not gay!" or vice versa, saying "I'm not gay, but..."
So fucking what if you're gay?! So fucking what if you are considering having anal sex with another man?! Anyone who doesn't get it yet that one's sexual preference is totally inconsequential, insignificant, irrelevant, unimportant, of piddling pertinence, etc... is a fucking brain-dead, brainwashed, socialized, indoctrinated, waste-of-space, meat-headed, pile of stupid. In my opinion, sexual preference is on par in terms of importance with television show preference, music preference, dessert preference, movie preference etc...
Just have your damn sex people, whatever it is, however it is, as long as it's consensual and you're not knowingly causing the other person any harm. Stop being intolerant, small-minded apes/sheep. Please. So I and others can live their short, god-forsaken loves in relative peace. Stop making others' business your own. Stop making something out of nothing.
HaagenDazs-
If you want to have sex with that guy, do it. If you don't, well... I have a hard time understanding why you would be 'curious' and posing this question to us. Picking up your analogy, if I had no interest in going to the moon or mars, I would never be curious as to what it was like nor spend any amount of time pondering the question. If the real problem, the real reason for your trepidation is that the guy is a bit femme, find a masculine gay guy; they are far far far far more numerous than the biased media would lead you to believe.