London - The Pippa Middleton Ass Appreciation Society has scheduled a Facebook event to celebrate the socialite's 28th birthday.
The sister of Britain's Duchess of Cambridge turned 28 on Tuesday and society members plan to mark the occasion via Facebook by celebrating Ass Appreciation Day on September 9.
The founders have jokingly added the event will happen in Prince Harry's bedroom, after reports the pair enjoyed a brief flirtation earlier this year.
The tongue-in-cheek event has been dubbed "a day when Pippa's ass will join the great buttocks hall of fame alongside Jessica Alba and Angelina Jolie".
The British beauty's behind has been revered since her appearance at the nuptials of her sister to Prince William at London's Westminster Abbey on April 29, where she wore a cowl-necked design by Sarah Burton for Alexander McQueen.
Pippa enjoyed a lunch out at a London restaurant on Monday ahead of her birthday.
The sister of Britain's Duchess of Cambridge turned 28 on Tuesday and society members plan to mark the occasion via Facebook by celebrating Ass Appreciation Day on September 9.
The founders have jokingly added the event will happen in Prince Harry's bedroom, after reports the pair enjoyed a brief flirtation earlier this year.
The tongue-in-cheek event has been dubbed "a day when Pippa's ass will join the great buttocks hall of fame alongside Jessica Alba and Angelina Jolie".
The British beauty's behind has been revered since her appearance at the nuptials of her sister to Prince William at London's Westminster Abbey on April 29, where she wore a cowl-necked design by Sarah Burton for Alexander McQueen.
Pippa enjoyed a lunch out at a London restaurant on Monday ahead of her birthday.