Absolutely -- I notice this myself. I'm always really confused about who is and isn't gay while rolling. Sometimes I'd fucking SWEAR someone is gay, and it generally turns out they're just rolling their ass off. I think it is definitely a drug with a feminine energy. I know for SURE I probably look gay -- until I start making out with hotties -- but I'm mostly straight (i.e. almost always have a girlfriend, LOVE women, never had any gay experences, but thought about it and have some mild interest in it, but never enough to act on it even when offered make-out sessions by attractive men while I'm rolling).
Also, I think the view in this thread is very limited in terms of human sexuality. It's not a binary gay / not gay world. People are on a spectrum of straight to gay, with most people being closer to one end or another, but with plenty somewhere in between. For example, if 1 is totally straight and 10 is totally gay, I'm probably a 2.5. I'm all about the ladies,
but I might go gay for Brad Pitt while rolling, dig? (Shit, maybe sober. Dudes fuckin' hot, let's be honest).
MDMA allows more full expression of sexuality AND affection. The line between those two is very blurry and hazy. But the whole point of rolling is drop the constant need to categorize and define and separate people and instead to share our love with one another in whatever form that comes in. And I mean really, in the end, who gives a shit? When you're rolling, affection and touch is simply phenomenal, no matter who it comes from. Just enjoy it -- and if your friends or new friends turn out to exhibit gay behavior (remember, that doesn't mean they're gay, just not totally straight!), slap 'em on the ass and help them go find a dude to dry hump.