Patrick Schwarzenegger spilled the beans, possibly unintentionally, but his sister, Katherine, and her hubby, Chris Pratt, have had their baby. The news came after a photographer spotted Patrick Sunday and congratulated him on becoming an uncle and then asked how Katherine and the baby are doing. PS responded, "Doing great, just got her a little gift." He then made it even clearer by showing the photog the gift, wrapped in a pink ribbon.