If we are with a couple for the first time or we don’t know them well, we play in the same room. I want to keep an eye on the other guy in case unwanted choking, anal, slapping, etc. arises. Not much untoward has happened, except some guys like to grind their wiener on my wife’s vag before they put on a condom. We are alert for this move.
If we are with a couple we know, we start out in the same room, and sometimes we split off with the other spouse to another nearby bedroom. It gives us more room, freedom of expression and the ability to make noise without disrupting the other couples’ focus.
After a late afternoon session is over, we clean up and go out to dinner with the other couple. We are generally in a good mood. A friend recommended that order. He said you don’t want food sloshing around during sex.