Virgin

Virgin 

Someone who has not had sex before, Pure. For a girl, this would suggest that the hymen is still intact.

Virgin 

Someone who has not done something before, as in "she was a virgin to anal sex" or "He was a frat party virgin"

A reality in the porn world is that there is almost no actual real virgins in porn, but plenty of first time experienes, like first porn movie, first lesbian sex, first time with an older woman, etc. Any site claiming to have real virgins having sex is probably lying.

recommended virgin / first time sites: My First Sex Teacher, Nubiles, First Time Auditions, FTVGirls