I was in a situation about 20 years ago when anywebcam.com was a thing. My gf and I used to fool around on there quite a bit.

Turned out a buddy of mine and his wife were also on there. One evening we happened to be on at the same time. After playing on cam for a bit, he invited us to his place. We didn't do any swapping but we did put on a good cam show. Part way through, another couple showed up. My buddy answered the door naked. At first the couple was a little shy but they eventually got naked too. 😋 Fun night indeed. I was a little late for work the next morning...