Most of the responses in this thread are by people who wish to keep their lifestyle secret from their kids. When I was growing up, my brother and I knew that our parents were swingers, as they were open about it. Sometimes they would invite their lifestyle friends over and those friends would bring their kids who were close to our age. My brother and I would usually go to our room with the other kids to watch TV or just mess around like all kids do. Our parents were in another part of the house, either in their bedroom or the family room doing what swingers do. It was never an issue.