28/10/2013 05:44 GMT | Updated 28/10/2013 07:31 GMT

US School Makes Students Sign Anti-Twerking, Grinding, Sexual Dancing Contract For Prom

NEW YORK, NY - AUGUST 25: Robin Thicke and Miley Cyrus perform during the 2013 MTV Video Music Awards at the Barclays Center on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Michael Loccisano/FilmMagic)

A US school has made its students sign a contract promising they will not twerk, grind, or dance sexually at their prom - and if they break it, they'll be kicked out.

Annapolis High School in Maryland refused its pupils entry to their homecoming dance unless they, and their parents, had signed on the dotted line.

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Twerking, which rose to fame thanks to Miley Cyrus and that VMA performance, has now become a routine dance move among students, with thousands uploading videos to YouTube featuring themselves performing the craze.

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Miley Cyrus made twerking famous in her VMA performance with Robin Thicke

According to WJZ, the contract states "no grinding, intimate touching or dancing with your buttocks touching or in the air".

The county's school spokesman Bob Mosier said: "Dances have become more provocative in recent years, and we’ve had some issues at schools frankly."