I'm asexual.
And you're right; it's perfectly normal. The human spectrum of sexuality isn't just one-dimensional gay-to-straight, you know; there's a "desire" dimension that goes all the way from "I want sex multiple times a day" to "I don't even want platonic romance."
You should go to
AVEN and read up on asexuality. I think it's kind of annoying how everybody knows about gay and bi people, but not about asexuals. I mean, you're in the twelfth grade, from your sig; and it looks like you haven't even heard of it... whereas you probably heard it was possible for people to fall in love with the same sex by the time you were ten, if not younger. *Sigh* Silly sex-obsessed society doesn't conceive of the idea that it's possible not to be obsessed....