A MAN, his boyfriend and a third man had an orgy on a late night London Underground train in front of other passengers.

Nicholas Mullan, 24, and George Mason, 35, engaged in an array of sex activities which they filmed on the Northern Line between Leicester Square and Waterloo.

4 Nicholas Mullan, right, and George Mason appeared at Westminster Magistrates Court Credit: David New - The Sun

Prosecutors say another man was involved in the astonishing incident, which also involved extensive sexual activity on 19 February last year.

The two men appeared at Westminster Magistrates Court on Friday and pleaded guilty to one count of outraging public decency.

Outlining the case, prosecutor Miss Victoria Murphy said: “This is a case of outraging public decency on a London Underground train.

“On the 19th of February 2018, British Transport Police were contacted to a report of a video which had been posted online showing three men engaged in explicit sexual acts on a train.

4 The pair engaged in an orgy with a third man on a London tube train Credit: David New - The Sun

4 The pair filmed themselves, along with another man, on the Northern line Credit: David New - The Sun

4 The two men are due to be sentenced next month Credit: David New - The Sun

“It showed full sex, oral sex and masturbation in the presence of the travelling members of the public.

“It appears to take place on the Northern Line between Leicester Square and London Waterloo.

“It was reported by a man who was also gay who thought the video overstepped the mark and was morally unacceptable.”

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She added a British Transport Police investigation later identified two of the three men – the third is thought to have escaped identification because their face was pixilated.

They were told to appear again at Westminster Magistrates Court for sentencing on February 1.

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