believe it or not, I was 18. Depending on the company I keep I may lower it but that is the God's honest truth, it was not a comfortable choice for me as I was scared of pregnancy, Vd etc. More people should be as concerned as I was such as my little brother who has one on the way, he is only 21 and his life is fukked. I wanted to live my life, travel, expendable income etc. I don't regret a second, if I could give anybody some advice I would tell them " It is not how many people you have slept with, it is how many times"
I'm not trying to come off all holier than thou but if you really want some choices in your life, you had better make good choices NOW!!