Of Swords and Parasols

G — He’s thirty-five, and he knew her ten years ago when he was twenty-five and she was only twelve. It would be amusing to make her slightly young at the time.

S — And promiscuous. She came onto him.

G — Fifteen is right on the edge. I know it’s an outrageous idea, but it is interesting. Once she’s sixteen or seventeen it’s not interesting anymore. But if she was fifteen and he was twenty-five and they actually had an affair the last time they met. And she was madly in love with him and he…

I...what?  Women who come on to men are promiscuous-especially if they're young teenagers, and statutory rape is more interesting the younger the minor is?

Am I the only one who took Indy and Marion's exchange in Raiders of the Lost Arc as their ages probably being around 25~ and 17-18?  Young enough for him to be robbing the cradle and probably taking advantage of a schoolgirl crush, but old enough to be convinced that she had at least some idea of what she was getting in to?