Girls, opinion on this please?

So I'm an 18 year old guy, and I've never had a girlfriend, I am a virgin. I'm definitely not bad looking, and I think (and have been told by multiple people) that I have a lot going for me. Things just never worked out for me romantically, the girls I liked were usually either already taken, uninterested, or sometimes both. I've only kissed one girl, once, and never gone any farther than that. There have been a few opportunities I could have probably gotten sex but I chose not to because I knew in the long run it was a bad idea, and I knew I'd probably regret it later.

Honestly it's something I do feel insecure about. I feel like in sex, as the guy, there's a lot of expectations on me and I'm supposed to know what I'm doing, and while I have done a lot of research it's different than actually doing it. And I'm told that any girl worth dating will be understanding and willing to help me learn, but I don't want to feel like they have to make special allowances for me or take a few disappointing rounds before I actually get good, I really care about the girls experience for the sake of my own ego, and for her enjoyment. And I don't want to be looked at as sweet, cute and innocent either.

Basically, girls, what's your opinion on the situation? Would I still be considered desireable, hot, sexy, even though I haven't had previous experience?