Would you be annoyed by your partner using sex toys in your presence, or get involved and gladly assist them in using the toys even if you don't get laid that time, while they get off?
I had an ex that was "rescued" by the police and fire department because she was naked and tied up with tape over her mouth in the backseat of a car on Halloween... Turns out she and her new boyfriend were playing out a kidnapping scenario trying to fullfil a fantasy... Made local news, lol...
So I'm gonna steer clear!
Would you let someone tie you up in the backseat of a car naked, in a busy city?