In the event that keyword “Swinging” conjures upwards images of frizzy-haired ladies and nicely side-burned guys in floral-wallpapered encircles, peeling off his or her flairs and decreasing their own Datsun 240Z secrets into bowls to a soundtrack of cocktail-lounge classics, think again: partner swapping are a far more old and further-flung occurrence as compared to cliches indicates.