Stars and Their Pets: Hilary Duff's Birthday BundleDuff spends her special day in L.A. with sister Haylie and Chihuahua Lola. Plus: Ryan Reynolds brings Baxter to the park in Boston and more


The former Real Housewife of New York City and her daughter Thaddeus team up for dog-walking duty Saturday, heading out in the Big Apple with furry friends Chief, Bear and Fluffy.