Ok, im 17 almost 18 & me & my boyfriend have been dating for a year & a half & we haven't had sex we have just made out, but yesterday we started messing around & I gave him a handjob but he really wanted to go all the way but I said no, we haven't actually talked about it, but I want to wait until I'm married to have sex, like we can fool around & stuff but just not sex. How do I tell him that I don't want to have sex yet?