I'm thinking that if by saying you're to 'young' to talk about sex, aren't you a little young to be participating in it? One of the great things about sex is the communication that goes along with it. One of my favorite things about sex with my girlfriend is that usually if we try something new a day or two afters we can openly discuss it, which makes it better for everyone, since you know exactly where the other stands on issues.
That's my .02 anyway