I think this type of parties is more common in the west. lots of swingers clubs where I used to be. However, probably less common in the east. I find it quite interesting and would like to explore.
10000 members it seems S&B is a big club and it shows there are many people in society who want to explore sexual fantasies. But there are some fear and nervousness to be the part of these activities. I think Chris is providing a place where we can live our fantasies. Thanks Chris.