HIT IT, FOR THE LOVE OF GOD....HIT IT!
When I was 20, I recieved some advice from my then-boss, who was 31. I had been dating a girl for about 3 months, and then she was away for the summer and we tried to keep it going long-distance. I got an offer from a smokin' hot chick, and I asked my boss what I should do. He told me this:
"Don't ever pass up the opportunity to sleep with a beautiful woman, because you will regret it for the rest of your life. I'm 31 now, and I'm still pissed off at myself for opportunities that I blew when I was your age."
Now, I'm 30....and he was soooooo right. So hit that 18-year old honey ASAP!