You could just let it go and wait for her to discover your own hairless marbles. She's bound to comment on it - I know I would, WTF - and then you can answer her by explaining you don't like pubic hair, at all, on anyone. Keep it in vague, neutral terms to avoid offending her, but she'll definitely get the message. Either she'll shave for you or she'll decide against it but she will know where you stand.

