The sister of Kate Middleton, aka The Duchess of Cambridge is now represented by the Liquid River Thames Talent Agency.The LRTTA also represents such other well know celebrities as Pixie Lott, Aishwarya Rai, Cat Deely, Prince Philip, Dannii Minogue, and Chicharito.Ms. Piffishaw caught up with Pippa Middleton at The Joan of Arc Pub in Soho.