Moan over us

One of my fantasies is my partner and I fucking with lots of people watching like they are at an exhibition or a museum but they can't touch us. I've thought about having a space where it's a glass box and a crowd of people are watching. It could be set in some futuristic bar or fetish /sex shop. So hot. Maybe audience members have to pay more if they want to start wanking or doing sexual things too.