It's wrong in so many ways...

I'm trying to stay neutral, and helpful, but...

Why are you with this man? He does this in front of you? How horrible.

This is not about having a fetish, or being narrow or broad-minded. It's not about how good or bad your sex life is (in case he gives that as an excuse). Nor is it something he needs to do in order to express some essential part of himself.

It's creepy and victimising. He's forcing those girls to take off their clothes. He's making them do doing things they'd never in a million years want to do with him.

I've been stalked, several times, and honestly this is what it's like.

How do i deal with stalkers now? I publicly embarrass them. Shout at them. Ask them what they're staring at. They love getting one over on the woman they're following, in my experience. But that drains away pretty quickly if everyone on the train or in a cafe is staring at them.

That guy must be a real creep, everyone thinks, to have made her react like that.

Stalker shrivels up and scurries away and does not bother me again.

Sorry for the rant.

As you might guess, I'm unfortunately experienced in how men like that operate.

I strongly advise you to find some way to publicly humiliate this man, who has refused repeated requests for him to stop.

If you aren't able to do it for your own pride, do it for the girls.