Yes, and I doubt they are all using condoms all the time. There is nothing unfortunate about being a virgin, sweetheart. You still have your whole life ahead of you, and you don't have to worry if you are pregnant or if you have a deadly sexually transmitted disease, or worry that all your classmates think you are a dirty little slut. These friends of yours have to deal with all of this. And they did this to themselves. I was 17 when I had sex for the 1st time and I married that guy. I didn't sleep around as a teenager. And guess what, my husband cheated on me with 3 other girls after we were married and gave me an std. Luckily it wasn't deadly and totally removable. But before it was removed, it nearly gave me cervical cancer. Yes, sex can give you something called the Human papilloma virus by way of genital warts(which can be removed). I almost got cancer at age 18. Do you realize the moment you have unprotected sex, that's when you have to start worrying about these things? Be proud that you are a virgin. Your friends are very irresponsible with their lives by having multiple sex partners especially at a young age. Please check out this link and read up on it before you decide to give away your virginity. And show this link to your friends, they need educated and they need to see their doctor for some serious testing. They may already be infected with an STD and not know it. It's disgusting that they have slept with so many guys in such a short time at such a young age. I'd kill my daughter if I found out she had done this too. Good luck, help your friends, you may save their lives if you help them get to the doctor and get tested. CONDOMS people!!!