I was 18 when I lost my virginity and I was glad to have waited till then. I felt ready and understood what it was supposed to feel like. I knew most of my friends who had already lose theirs at around age 15 but I thought that was really off. I was glad to wait and I think that those girls who feel guilty about it now should just be okay with it and feel comfortable talking about it. There's no shame in it and I think that if you're smart, you'll learn to wait till you feel right with it again. Sex should be something that you enjoy; not do it out of habbit or cause everyone else is doing it.