The thing I enjoy about the scenario (aside from the obvious amusement of watching her cum in public) is the lack of orders involved.

I never order her to wear it out to dinner to begin with. I merely suggest it "Might be fun", and she volunteers for that segment of the evening. I never order her to let me leave it on for the rest of the eveningin the car "until she gets home". Again, I simply suggest it, and she volunteers. I don't even specifically order her not to remove the harness, though in theory the fact that it's my harness implies she shouldn't fiddle with it. But nothing's stopping her from ripping the thing off. Granted, I wouldn't expect her to rip it off in the middle of a dance club - though I admit I'd be curious to see the group response, all social consequenses aside - but she would have had ample opportunity to try to do so in the car between the time I inform her we're going dancing, and arrival at the club.

No orders. All merely suggested. And all volunteer duty. That's what makes it so much fun, it's one thing to order her to do it. It's another for her to agree, and for me to simply use that agreement as I see fit. Her words, my action.

I'd be most interested in her reaction as we arrive at the club. Would she beg me not to do it before we're out of the car? Would she walk in, nervous as hell? Would she walk in confidently, relishing the absurdity of where she's placed herself?

If she walked in, how long would she last?

Yes. This intersts me a great deal.