This is a shout out for people who are still not over Pippa Middleton's hot derriere from the Prince William and Kate Middleton wedding. The secret to Pippa Middleton's sexy bum has been revealed and here is how you can achieve it.

As stated in the fashion magazine 'Grazia', Pippa's much-popular energetic bum is a result of underwear from a company 'Beautiful Bottoms'. The London-based lingerie giant creates exquisite underwear lines which lend a layered look;in turn creating a mystery as to what lies beneath, the way it does for Pipa's bottom.

And in case of Pippa Middleton, we are sure it does more than that, which is the why her bum is always a talk of the town. Now that secret to her sexy bottom of the 29-year old Pippa is out we won't be surprised if like her Alexander McQueen bridesmaid dress, the panties from 'Beautiful Bottom' also become a huge sell out. The panty maker anyways describes them as 'flattering and flirtatious' sexy underthings and this would catch fantasy of many, let alone Pippa.

Pippa Middleton has a liking for products from 'Beautiful Bottom'. It's not only their lingerie line that she fancies but she also prefers to sport other designs from the brand. Back in June, the Brit babe was spotted donning a plum printed scarf from the company. For those who want to steal Pippa's style, scarves or her underwears, you know your one stop destination!

Take a look at the best looks of Pippa Middleton's bum. In all her sexy looks was she wearing underwears from 'Beautiful Bottoms'?