THIS is the shocking moment a randy couple trying to have sex on the metro are stopped by a furious pensioner.

The woman doesn't appreciate the interruption, and shouts and attempts to kick the old man while other passengers look on.

The bizarre incident took place on the underground train system in Moscow and was recorded on by an onlooker.

In the newly emerged video, the couple can be seen lying across the seats of the train as the woman begins unbuttoning the man’s trousers.

The woman appears drunk as she mounts her partner and begins pulling down his trousers.

Then an elderly man with a book in his hand gets up and taps her.

The OAP says something to the woman that enrages her and she lashes out before shouting at him.

The couple then sit up as the woman continues shouting at the man before she gets to her feet and aims a kick at the man.

Comments flowed in after the video was posted online.

One user, identified as Ralik Sarik, called out the other passengers for not intervening after the woman starts abusing the pensioner.

He said: "All those people are morons, those that were sitting there, pretending they did not notice what was going on and did not even try to help this OAP."

It is unclear if the couple will be fined for their behaviour.