For two years (05 to 07) owned a swinger club in Oklahoma. Six and 1/2 days a week it is a normal open bar on the corner with the after work crowd and the barflys, and karaoke some nights DJ other nights. Just a normal bar, on Saturday nights we were *couples only*. Only couples and singles that we the owners knew were allowed in, and it is pretty much the same as any other bar, except the women could dress as sexy as they wanted to and not get hassled by guys. The guys are always on their best behavior because of two facts 1. their wife is right there 2. they are not out with the boys looking to pick up single ladies because her husband is right there.
In the two years we owned it we never had a fight break out on a Sat night no matter how packed we got or how rowdy the crowd was. All the holidays were fun, because everyone got into them, Green outfits for St. Pats day and full costumes at Halloween.
No sex was allowed on premises because we had a liquor lic. , but flirting, flashing, and if discrete a bit of fondling happened all the time on Sat night. A lot of girl with girl dancing happened with a lot of close body to body contact. We had a giant twister game board, 20 dots by 20 dots, and at times had as many as 30 or 40 people playing a game of twister. We have a ball, yes we still go there we sold out because we own two other business and just could not keep up with the 20 hr days for longer than two years.
The main difference was the attitudes, the guys brought their wives knowing that she would likely kiss someone else and it is OK, and the wives brought their hubbys know that he would more than likely touch some other guys wife and thats OK, The other main rule that was enforced was NO MEANS NO if someone, male or female, told someone to back off more than one time they and their spouse were walked out the door.
It is a place where you can find another couple, have a drink with them, dance with each others ladies, and if all parties agree all 4 or 6 go off to someones child free home or hotel room to party on.
Now that was our bar there are other types of swinger clubs that are called on-premises where folks can go and play with others that are there at the time but here those places can't sell liquor.