Also, the books say that a white court virgins first feeding is always fatal to the victim. Be careful what you allow for them.
Not always, almost always. Read "Bigfoot on Campus", the third installment in the Bigfoot series of short stories for details.
The explanation for those who don't want to read:
In Big Foot on campus, the main character (I forget his name) is the half-human scion of his human mother and Big Foot (who is a powerful supernatural being). He has a girlfriend who is a White Court virgin (neither of them are aware of their supernatural heritage). Long story short, they get freaky but he lives through it and the White Court virgin doesn't become a full White vampire. It is later established that if a being has enough energy (way more than most mortals will ever posses) a White Court virgin can feed on them until "satisfied" without being fully turned.
In response to the Bigfoot on Campus thing.
I think she was fully turned, the dude's life force was just so big that she couldn't kill him at it. The whole point of the short story was to show how wrong the WCV attitude is, that their feeding mandates death. Which is why her dad turned his power on her in order to prove his worldview was justified. Might be hard, but if they were more selective about targets they could potentially all end up like the two in that story. Although, I guess if you mean she didn't lose her innocence that would come from killing your first lover, then yeah she's still a WCVirgin.