I was thinking about us being roommates for a few years and we got so comfortable with each other that we wouldn't be surprised to see another naked or something and at some point either of us sugest a game of chicken where we give another a challenge for the other one to do and it starts off mild by flashing another but eventually leads to sex or shitting yourself in front or the other or even included taboo kinks as animals or insects and diapers maybe
I'm completely limitless so don't be afraid to ask for something most people wouldn't want