Straight or gay, most of us identify with some kind of sexuality. In fact, ever since Freud, most people have thought the sex drive was a fundamental part of their identity. But what if you had no sexual desire - at all? Some people say that is their experience, and it's a tough one, in a world as sexualized as ours. The Gay and Lesbian Center will be screening the documentary "(A)sexual" on Saturday and will hold a Q&A session afterwards with Asexual Activist Sara Beth Brooks.