When I have visited spa's the last years I have encountered several exhibistionist wives/girlfriends. They are in the spa with there partner. This has very rarely happen with singel women or several women together.
Sometimes they are doing this behind there mans back, but must of the times the man approves it.
Maybe I look like a man who like to be teased? (which is true

)
I cannot do anything than enjoy the view and smile. Some times I talk to the couple afterwards, always polite and never dirty talk. One time I was talking to the woman alone we had long and very interresting conversation but every now and the she was flashing her boobs, it was very erotic, but nothing more happen.
Only once have I been invited to interact with the woman, but that's an story.