Who's a pant flasher?Who's a pant flasher?It's easy to become blase about the amount of underwear that gets flashed around town by celebs.

But this pair of extrovert pants comes with a twist.

And it's not a wedgie twist.

These knickers are not hugging the behind of Jodie Marsh or Jordan - two girls from whom we expect such behaviour.

Nor are said pants on show at a film premiere in Leicester Square.

No, this pant flash took place at a very posh do, attended by very posh people.

Therefore we assume that the flasher in question was unaware that her bum was camera bait.

Find out who the guilty party is in the gallery above.