Ah, no, that was Beatrice! Her and her sister Eugenie were cursed with their mother's awful fashion senses. Pippa is the sister who rather distastefully wore white to hold her sister's gown down the aisle. She got a lot of attention because of her butt looking good in the gown, but she so does not look good 99% of the time.
Case in point: Kate Middleton and Pippa Middleton Pictures at Sam Waley Cohen and Bella Ballin's Wedding
That greenish jacket is hideous. And very unflattering to her shape.
Edit: Heyyyy guys. I'm a bit posty-crazy tonight.