Is there such a thing as a pretty virgin woman in her mid twenties to mid thirties?

Absolutely. A pretty woman can afford to be more picky than a less attractive woman and not depend on having sex with guys to get or keep them interested. A surprisingly large number of very attractive, accomplished women choose to wait until marriage to have sex. Unfortunately it is often suggested that only unattractive women have little or no sex before marriage. Statistically the reverse tends to be true, i.e. attractive women are LESS likely to feel a need to have sex in order to secure a companion/mate. There is also a tendency for guys to be intimidated by very attractive women making it less likely for them to be approached for sex than their less-attractive and thus more-approachable friends.