Prince William and Duchess Kate visited the Centerpoint homeless shelter in South East London yesterday night. The charity was one of Princess Diana’s favorites, and now William is their patron, bringing attention and raising funds for the cause.

Kate looked incredible and a snug-fitting sweater dress. There’s no way around it: her bum was rivaling sister Pippa’s famous rear. And it’s probably safe to say she’s not pregnant: that’s about the flattest stomach I’ve ever seen. Even thinking about a baby will make your stomach rounder than that. That’s the excuse I use anyway.

Back in December 2009 Prince William slept on the streets for a night near Blackfriars Bridge in London, raising awareness for Centrepoint’s work with homeless young people. Check out the pictures at the end of the gallery – sure it’s not the same as what the organizations clients go through, but how many other royals are willing to rough it for even one night like that?