I was 11 when I had my first kiss 8O and dated all through high school. I think I was 15 the first time my mom offered me contraceptives... but you know what? I didn't take her up on it, all the way through high school. My parents (well, my dad pretty much left it up to my mom LOL
) were very open and honest about sex and dating, and that I think paved the way for me to make good decisions about it. I waited until I was positive that I found someone worth doing it with, which was actually after college.
Kind of embarrassing, but I was so terrified of getting pregnant and having to drop out of school that I knew the only 100% foolproof way was to just wait. My attitude toward partying was much less responsible, but that's a whole other story. I guess my point is to please, for your son's sake, keep being a cool mom. You may be surprised by the good choices he makes if he doesn't have to sneak around.
I totally agree about the teen/preteen slutty outfit thing- what is up with that? 8O I just graduated in 1998 and kids didn't dress like that when I was in HS. I guess they all think they have to dress like Britney Spears or something, but look how she's ended up --- pregnant!!! :P