You know it's been so long since I've ever answered the whole virgin question that I forgot it's been 8 years now since I was one, wow almost a decade...makes me think which I shouldn't because I think I may be getting old! I don't wanna grow old! Sex is a natural part of human attraction, when you see a pretty girl you get aroused and the same can be said for most women too. I don't believe sex is something overly special but it helps strengthen bonds and binds you closer to that person than a purely plutonic relationship. I do however believe you should know when to have sex with someone and when to hold off, if they truly are interested in jumping your bones then they'll wait around for it to happen.
