Absolutely nothing. I know it's not my meds, because I'm on Wellbutrin and that (supposedly) increases your sex drive rather than inhibiting it. But yeah, men, women, unicorns, I have no physical attraction to anyone. However, I don't know if I'd identify as asexual or not.
Because- if someone is witty, smells nice, has pretty eyes and a nice voice, I'll just ask them out. I lucked out and found an aspie BF who fits the aforementioned qualities, so he was pleased that I didn't require flirting or dates aside from gaming and movie nights.