The steamy X-rated scene, recorded in the city of Dubrovnik, in the Croatian region of Dalmatia last week, shows a woman bent over by the harbour wall with her dress pulled up over her back while her partner appears to thrust rapidly from behind.
But the action came to an end within a few seconds, as the pair pull apart, the girl flips her dress down and grabs her handbag while the man walks off doing up his flies.
A pedestrian was seen walking along the promenade moments after the couple had finished their public display of affection in the popular tourist destination, which was used as the setting for King’s Landing in Game of Thrones in the hit series.