I can put a blanket statement on this question:
Virgins. Are. Boring.
Look, I get it. Nobody's born experienced, and everyone's gotta start somewhere. Hell, I'll bite the bullet and even be the teacher there if you're really that into me. But if I have a choice? Sluts, always.
With virgins, you always have the fear, the crying, the begging, the 'just lay there helpless' technique and the guilt. And putting them in a FSF story isn't an improvement.
With a slut, you know you're in for a good head, maybe even anal if she's a bit loose. And in an FSF story, you'll have struggle, cussing, scratching, insults plus all the stuff the rapist does.
P.S. An asshole is tight on every woman