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We've had some awesome Fifty Shades of Grey stories over the past few weeks, from the US cinema that started showing the movie to an audience of kids to a Mexican lady arrested for pleasuring herself during a screening.

But a couple in Las Vegas may have topped the lot by actually trying to have sex in a museum exhibit paying tribute to the film for Valentine's Day.

A "busty blonde" and her male partner were caught on CCTV footage (which was obtained by TMZ) roaming the Erotic Heritage Museum looking for a secluded spot in which to do the deed.

And the woman is apparently seen pulling her short dress off and raising her leg while wearing just a pair of knickers - before they begin fondling and kissing one another.

CCTV personnel spotted the pair and alerted security staff - who are claimed to have chased the half-naked couple from the venue.