"I suppose," she says seductively and turning to give you a great view of her ass, "that I shouldn't take advantage of you like this, when you're completely helpless and at my mercy, should I?"
"Uh huh," you grunt as you try to nod your head...
"Yes, I know, it would be kind of like rape... And I've always been a *good* girl, haven't I"
You grunt "uh huh" again, but you can't help it: the way she is thinking about taking advantage of you is a total turn on!