Honestly sex is like the least of my concerns even when dating. It's offputting to me when a female throws advances at me or even brings it up before I know them personally. I get flirting, and I can hang with it, not even saying I'm opposed to sex on the first date or one night stands I just prefer to actually connect with people on some level before getting sexual because that makes it a lot less awkward..
The last one night stand I had was awkward as fuck for those same reasons.. I don't understand people that can fuck strangers or even want the pleasure with all the risks attached when they know nothing about the person. I'm not a virgin, but it honestly doesn't matter. I think most people that crave sex have nothing better going for themselves or just really low self esteem, and it turns me off.