My wife and I have recently been thinking about her and another guy while I watch. It gets us both hot and we started looking around on dating sites to see how we could make it work. These are the pictures we used.
Each token is about 5-10 cents and you can tip 1 or as many as you like. Every token amount has an effect of some kind on the performers."
The tokens vibrates the toy remotely which is usually already inside the woman. So your 5 cents makes her shiver. After awhile, she does something extra (sexy) special ...