Pippa Middleton

Pascal Le Segretain/Getty Images

Good news for people who are still not over how great Pippa Middleton's bottom looked at the royal wedding.

Years after her sister Kate Middleton walked down the aisle in 2011, the secret behind Pippa's spotlight-stealing derriere has finally been revealed!

According to Grazia, Pippa's much-envied, much buzzed about pert bum came courtesy of a pair of underwear from the oh-so-appropriately named company Beautiful Bottoms.

The London-based lingerie, lounge and beachwear brand explains that its creations are "designed to be worn layered, casually hinting at what lies beneath."

But perhaps not so casually in the case of Pippa, who's bum made headlines while wearing the undies.

And seeing as the demand for similar versions of the 29-year-old's figure-flattering Alexander McQueen bridesmaid dress skyrocketed after the royal wedding, we'd say Pippa's panty maker of choice, which describes its sexy underthings as "flattering and flirtatious," are sure to sell out now that the word is out.

This isn't the first time Pippa has reached for Beautiful Bottoms' products, either. Back in June, we spotted the Brit babe out and about in London, wrapped up in the company's plum printed scarves.

The eye-catching accessory is still available for those who want to steal Pippa's street style in addition to her beautiful bottom...underwear, that is.

Would you purchase Pippa's royal wedding underwear? 

PHOTOS: Pippa Middleton's 10 best wedding-guest looks

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