A tattoo covered stripper ripped his clothes off in front of pupils as young as 13 during an X-rated prank at Kate Middleton's former £30,000-a-year school.

The male performer tore off his pants leaving him in only a tiny blue thong as a crowd of girls gathered round him at Marlborough College, Wiltshire.

He performed his striptease as part of an end-of-term hijinx organised by some of the prestigious school's older pupils.

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The stripper starts his set by appearing to carry a female student away over his shoulder while others look on

A tattoo covered stripper ripped his clothes off in front of pupils as young as 13 during an X-rated prank at Kate Middleton's former £30,000-a-year school

The male performer tore off his pants leaving him in only a tiny blue thong as a crowd of girls gathered round him at Marlborough College, Wiltshire

Starting out in a sailor costume, the dancer - known only as Ross from Bristol - took off almost all of his clothes before lifting a teenage girl in the air and appearing to briefly mimic a sex act.

As he undressed, he tossed his underwear at one girl's face before gyrating with others in the centre of the college's grassy courtyard.

Despite being organised as a prank by senior pupils preparing to head off on their exam break, the entire routine was performed well within view of girls and boys as young as just 13-years-old.

A source told The Sun: 'A group of girls met the stripper at the school entrance and sneaked him into the court area — the central hub of the school.

'They formed a circle around him and he stripped down to his G-string and was dancing and grinding with some of the girls.

'Marlborough is one of the most expensive schools in the country. Parents do not expect their children to be watching a sex show.'

Debauchery: The lewd acts took place directly outside the school, in full view of any adults who should have been responsible for the pupils' wellbeing while at the school

The erotic performer lifted one girl upside down, holding her head near his crotch before bouncing her up and down. He then held another in the air with her legs wrapped around his waist before lying down on top of her

The children chipped in together to raise the dancer's £90 fee, orchestrating the gag through WhatsApp.

No staff managed to intervene as the stripper was not spotted until well after the adult-themed show.

Teachers only did get a glimpse of him as the girls responsible for booking him rushed him off the school grounds.

The college have since branded the prank 'inappropriate'.

Marlborough's former pupils include the now Duchess of Cambridge, Kate Middleton. She attended the school as a boarding student, and played in the girl's hockey team (pictured, with the Duchess of Cambridge fourth from left in the back row)

He performed his striptease as part of an end-of-term high jinx organised by some of the prestigious school's older pupils

Ross claims to have been unaware of where he was performing until he arrived and was met by the girls.

He added: 'I was told it was going to be for a girl's birthday. I didn't know I would be performing at a school.'

Marlborough's former pupils include the now Duchess of Cambridge, Kate Middleton.

She attended the school as a boarding student, and played in the girl's hockey team.