Commuters on a Russian metro were left shocked after a young couple were spotted having sex on the train.
An amazed passenger filmed as a woman began kneeling in front of a man in the carriage on the Nizhny Novgorod Metro in western Russia.
The mobile phone footage then shows her perform a sex act.
But the scandalous couple's behavior soon became even more shocking when she pulled her trousers down before jumping in his lap.
In the footage, the couple pause as the train stops and a passenger gets on carrying a black bag that partially obscures the camera's view but the woman can still be seen