Uhh, I think you're asking a very loaded question, as a matter of fact. It touches on one of the biggest criticisms of the gay culture: that of sex, and lots of it.
I'm gay, and I personally think the rampant sex that goes on within the gay community is quite excessive. I understand the argument that sex is a way of enjoying your body (which is an argument that is classically used), but it comes at a very heavy price. The gay community has paid dearly with STIs and abuse.
In any case, I think it's best to wait. Not to wait 'til marriage, but to wait 'til you find someone who you seriously like. It doesn't have to mean you've been together for months or years, but enough to show respect for yourself. I like the mentality of "I'm good enough to wait for". Sex in the gay community has become so emotionless.