This is going to be a slightly awkward and difficult topic, but I was wondering if there is a difference between the sexual performance or hormones etc in a gay man or lesbian woman opposed to a heterosexual man or woman. With men, might it be that homosexual men produce less sperm (sorry!)? And might it be that with homosexual women, they produce different numbers of hormones etc? I'm a bit confused.
I don't know about sperm count, but I do know that sexuality is not related to hormones. You give a gay man testosterone, and he gets horny for men. And I don't know what you mean by sexual performance, because the two aren't really comparable. Its very likely that gay people won't perform well in sex with heterosexuals, simply because there is no attraction there, and its difficult to compare sexual performance in different situations. if you're trying to find the cause of homosexuality, I doubt you'll find it in hormones.