My wife and I decided to take our neighbors up on a party invitation. Once there, we enjoyed the company and met a lot of other interesting couples. After about three hours and a few drinks, they started a karaoke contest. Everyone had to sing as a couple. As it turned out, you where judged on the singing. If you didn't do well, you had to strip and sing in your underwear. After a few more hours and a lot more drinks, the whole party had stripped. We now realize this is a regular occurrence and it's a neighborhood swinging party. As a participating couple, it's more fun than we can handle, but we are coping.