History of Swing
The practice of group sex always existed in society, ever. Perhaps, as we know it today will have begun at the time of free love, in full years 60/70, the hippies of the island of White or even in S. Francisco.

But the history of Swinging is not easy to tell because there are many versions.

But that has been sustained with more insistence is that it began during the Vietnam War, where the soldiers before they leave for the war and assuming no return, playeg a game where each of them would pass a night with the wife of another.

Other stories have invariably, some similarities with this, but difficult, today we know what is real.