Pippa Middleton, famous for her butt and brother-in-law, Prince William of England, was spotted leaving a Botox clinic in London this week. Could it be. Does her Royal Derriere use Botox. The question is why. She doesn't look like she needs it. Too many women are getting cosmetic surgery and applications before they are needed and it changes the look of the face in a way that makes them look older. It's better to wait until the wrinkles actually appear.