Pippa Middleton sported a nude-colored maxidress and a bright white jacket as she left her house in London this morning. Pippa spent the weekend with sister Kate Middleton, the Duchess of Cambridge, near where she and Prince William live in North Wales. The Middleton sisters, Kate and Pippa, were spotted walking together on the shore Saturday, and they were joined by Pippa's boyfriend, Alex Loudon, for that outing. Pippa and Alex are going strong after rumors of a split earlier in the Summer, and the happy couple have enjoyed everything from tennis matches to nights out on the town together, since the stories were put to rest. Pippa also played supportive girlfriend to Alex at his cricket match a few weeks back; even though he didn't win, he had PDA awaiting him as a consolation prize.