Britney Spears just won't stop parading her back side around town so unfortunately we have to keep writing about it.

The saucy pop princess' latest public flash came during a shopping trip to the Hustler porn store in LA over the weekend.

The 26-year-old pop tart took her lil pup 'London' to the store to help browse for some sex mags and lingerie.

But it wasn't long before shop staff lost out again to Spears when she kicked off her knickers in the middle of the store to try on some underwear, despite their pleas telling her she wasn't allowed.

One onlooker said: 'Staff employees told her they don't allow people to try on underwear' but that didn't stop Brit.

The singer is developing a habit of not using the changing rooms, last year being accused of pinching a wig after a similar public display.