Trouble(1996)

Original title: Scambio di Coppie Perverse

Alan and his beautiful wife wanted to celebrate their fifth wedding anniversary together in a sexy, picturesque place on the coast. But after checking in, they met their neighbors, Fred, Ethel, Crystal, Angel... and all the others. Not ones to shirk a challenge, our vacationing couple jump right into the sex soup and discover a whole new world of oral and anal sexuality - and orgies - unlike anything they had ever imagined!