Jugernot: Been there, done that, so I speak from experience. I was 13 the first time I had sex; the woman was 28. After a few experiences with her I was "hooked." All through my teens and twenties the majority of my sexual encounters were with women who were much older than me.
If you do become physically involved you will have incredible, mind-blowing sex. (And believe me, there's nothing wrong with that. Don't expect much more though, especially in the long run. Maturity-wise, experientially, etc., there is just too big a gap -- hell, there's a chasm -- between 19 and 32.