I was 20 before I had sex, and infact I had never done anything with a girl before that. I went to a boys' school, as well, and was always solitary, I suppose, and then in my first year of university there was some female interest in me but I never pursued it. It was the same at school, I guess.
The girl I finally got with was a virgin as well, and that seemed pretty normal to me. Maybe it's unusual, I don't know. It's pretty easy NOT to sleep around during your teens, though. I was never someone who saw the appeal in it, anyway. I sometimes felt like I wanted a girlfriend, but never very strongly and it was never in the front of my mind.
Sex wasn't such a HUGE deal to me and my girlfriend then, I mean, what with the internet and all, we all know what happens. It was significant, sure, but it didn't feel like it mattered too much either way. I did actually regret it a bit for a few weeks afterwards, because it was a big change in what I had and hadn't done in life, and therefore who I was, but I got over that.
Have you had any sexual involvement with girls, but just not actual intercourse? I had done nothing and to be honest actually having sex was a relatively unexciting step compared to the other stuff we had done previously.
In the end it's up to you. I don't regret how I did it at all. I'm glad I'm not a virgin now, and I'm glad I never had sex before I did. To me, it was the right time and the right person. A lot of people can't say that, which is a shame.