Aren't necessarily technical virgins, but rather what Molloy calls "situational virgins." This basically means a woman (typically in the 24-34 age range) who is sexually active (after many dates, of course), but doesn't dress like she is when she meets a man's parents.
-- from a Ladies Home Journal article on "What Type of Women Do Men Marry"
Guys are quite familiar about this sort of thing. They are often "situational gentlemen," which basically mean they could be major jerks, but try not to be when they want to score with "situational virgins."
Movie: Toni Collette is probably best known for being the mom in The Sixth Sense, but she suggests her range (and sexual power) in Japanese Story. The movie snuck in at the wire via a limited LA release, so it is eligible for the 2003 Academy Awards. I don't like these technical entries, but Collette surely should be top in line for Best Actress consideration. She was excellent as an Australian geologist forced to accompany a visiting Japanese businessman, including into the desert (wonderfully photographed). The resulting experience touches them both in surprising ways (the businessman is a bit of a cipher, more of a plot device, but not as badly as some reviews suggest). Collette, in turns strong (she is known for roles in which the characters tend to be somewhat weak), fierce, sexual, and emotional, almost carries the movie on her shoulders. She is well up to the task. Superior adult entertainment.