I can sometimes notice if a person seems hot... this has only happened with males so far. But I don't feel any desire to do anything about it. It's just kind of like... "well, that's nice to look at... now try not to look at it!" ... or something. It's a bit distracting and annoying, to me. Luckily it doesn't happen often.
That's for random strangers though... with people I'm close to, it's different. Then I can kind of feel a bit of a desire to 'do something', but only if I'm sure they'd welcome it, or honestly they'd have to make the first move anyway... I'm usually quite happy to just do nothing at all... it's simpler, and I don't want to screw up any friendships.
I don't know, I don't really have enough data to draw any conclusions. I haven't technically ever 'had sex'. I'm not sure how I'd react if that looked like a real possibility of a thing that might actually happen. I don't think I could do it unless I 100% completely trust the other person and we've been really close for a long, long time.
Sexual attraction has always felt like a 'dirty' thing to me. Like something I'd rather avoid. There was a time when I thought it'd be fun to do naughty, dirty things, but the novelty of that train of thought wore off when I discovered that I am, in fact, actually capable of feeling love for a person (for a long time I thought I couldn't really do that because my feelings never really matched the descriptions of what other people were talking about).
I'm rambling and I don't know what I'm talking about anymore.