We did something on this line, with five other couples we knew from a lifestyle club. It was a circle truth or dare game we did through a group text It was actually very hot and we did a lot of things we probably would not have ever considered if it was not for the gameplay.
The ways our little group went, each day one couple would send out a "dare" to the group. Couples were assigned a day that they would issue the dare. Our day was Thursdays. Once the dare was received each couple would attempt to complete the dare for the day and reply to the group with either pictures or videos of them completing the dare. We kept a running scorecard of our total points for each couple.
Over about a two-year period the dares increasingly became more taboo. My wife and I would search forums and online for ideas to dare the group. Each day different couples would post themselves finishing the daily assigned task. Some days, nobody did the dare but other days all six of us would complete it. It was all just for fun and things like family and work of course got in the way.
Things like public sex acts, strangers, cross-dressing, bisex, and punishment were always a big part of each day's dare. When the club we all attended closed we all sort of slowed down and it is rare anyone posts anything. But, it was a lot of fun at the time and it helped expand our sexual horizons.
I have an excel database of each dare over the two years, I didn't see it but will look for the file and send a link when I do. It basically has about 500 different adventures of varying activities, some mild, some wild.
One of the wildest ones from memory was,
We took our camper to a lifestyle clothing optional campground. That evening, many people were out on their decks and outside their campers meeting other people. My wife's boyfriend took the dominant role and he put a leash and collar on both my wife and me along with a blindfold. He then proceeded to walk us while we were both fully naked, around the campground on our leashes. As we would pass other people's campsites we would stop and he would tell us, "down" and both my wife and I would kneel as he would have a drink and tell how we are his sex slaves and if anybody wanted to use our mouths or holes we were available. We could not see since we were both blindfolded but we both sucked a lot of cock and had a lot of pussy and ass put in our faces to lick. We also both got fucked but my wife took more cock than me.
We ended up posting a link to a 30-minute video and were the only couple to complete that challenge.