Playboy impresario Hugh Hefner (1926 - 2017) and his girlfriend, Barbi Benton (centre) on board Hefner's private DC-9 airliner, 'The Big Bunny', at London Airport (now Heathrow) , 29th September 1970. The couple are in London en route for an extended holiday in Europe and Africa. (Photo by Dennis Oulds/Central Press/Hulton Archive/Getty Images)
