One of the benefits of having a sister is the opportunity to raid her wardrobe from time to time, but when that sister is the future Queen consort, the stakes are raised. How exactly do you compete? Well, in the case of the Duchess of Cambridge and Pippa Middleton, the sharing does seem to go both ways. While Kate's classic style has given Pippa the chance to play dress-up in Alexander McQueen and probably turned her on to Issa and Hobbs, we're pretty sure Kate's forays into Project D and Matthew Williamson have something to do with her little sister's style advice. We're taking a look at a few of the British labels that these stylish sisters love. We all know both girls love L.K. Bennett shoes, but what about these other shared fashion favourites?