Two random comments:
1. Years ago a girl sent a letter to the agony aunt Marjorie Proops (remember her, anybody?) saying "If a girl has sex once and doesn't do it again for a long time, can she become a virgin again?"
2. A girl was once convicted of prostitution despite the fact that the defence could produce evidence to show she was a virgin. This was because the legal definition of prostitution is "offering common lewdness for the payment of money". So it was enough that she had been offering wanks or blow jobs (or whatever she was doing). Penetrative sex was not necessary for the offence to be established.
Just in case you were interested. And if you weren't, it didn't take too long to read, I hope.