Randy couple in passionate sex romp as lonely man stands in next door hotel room alone in 'advert' that's gone viral

A spoof Trivago advert showing two people in the throes of passionate sex has gone viral.



The 10-second clip shows two randy lovers "testing out the bed" through a hotel room window with the light clearly turned on.



In the background, a group of men, who are filming the x-rated clip from the other side of the road, can be heard giggling.



The room next door features a man gazing out of the window, alone, presumably wondering where all that noise is coming from.