Actually I didn't think of that. When people mention placing the FMC into working a bar and being groped, my initial chain of thought is dirty sleazy men being handsy and trying to take advantage of the FMC, but you're idea of female customers being sleazy and Handsy would be an awesome addition.
Basically, you want "Men with Tits". I'm disgusted by the idea. A Lesbians Bar where customers behaved that way, wouldn't last to open the 2nd day.
I confess, I haven't spent much time around Lesbians, and by far a lot less than what I would love to, but each and everyone I knew, without ANY exception so far, have been fiercely, monstruously, irrevocably Feminists. I seriously doubt that that type of behavior would EVER happen without being challenged and the perpetrators ostracized.
Personally, I wouldn't stand quiet if I saw that happen in a regular bar if done by men. Drunk or not. It is abhorrent.
Nothing in your idea as any fucking merit, except to show that you are that type of man.