I was going to reply that asexuals can have sex (I'm one of the sexually active asexuals), but InsaneMystic beat me to it. :P
Here's the Gray-A entry on AVEN wiki, in case you're interested: http://www.asexuality.org/wiki/index...e=Gray-asexual
I used to identify as gray-A, mainly because I can enjoy sex, which seems pretty rare among asexuals. But as I got a better understanding of asexuality, I decided I was asexual, because although I can enjoy sex, I never desire sex for the sake of sex. I'd be totally fine with not having sex ever again.