1) Don't go below 18 unless he/she is within 2 years of your age.
2) Sexual contact doesn't have to mean f*cking. Passionate kissing, mutual watching, or up to full blown sex. Your choice.
Me? I'd say Rene Russo, Alyson Hannigan and a red-headed Lindsay Lohan. Yeah... there may be a theme there. What's your excuse? :)