SexualSpree~I didn't read what every1 else wrote, but, I"m 19 (almost, March 1) and i remember being like 15 and my bf was 20!
I didn;'t tell my parents, but i didn't let my man get that far with me, i would of... but he was to old...
U should wait for a few years, and try to just be friends until she gets to legal age.
She IS a little bit younger than u... try some girls around u... not all 18yo r that bad ~_~ Ur still young, don't go with someone that can't evan see rated R movies yet. Not that matters...

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My only love sprung from my only hate.

--William Shakespeare