The adorable royal twosome, who are expecting their first child in July, have been getting a lot of practice playing with cute children since they got married in 2011.
Part of the Duke and Duchess of Cambridge's duties include working with charities which help kids in need. Over the past couple of years, Duchess Kate and William have visited schools, hospitals and orphanages and have made youngsters smile and laugh with their generosity and playful spirits.
One of the most memorable moments for us was during the royal couple's 2011 Canada tour when Princess Kate met six-year-old Diamond Marshall who suffered from a rare cancer. Photographers captured a beaming Kate reaching down to hug the tiny tot, who presented her Princess with a bouquet of flowers.
Father-to-be Prince William also loves children. The future King of England met with children at Eresby School in England in 2010 to celebrate the school's new centre for kids with special needs and learning difficulties. A happy Will was photographed with a boy on his lap, giving him a big hug. (The whole world goes "awwww".)
We think it's safe to say that Kate and Will will be amazing parents.
Check out pics of the royal couple interacting with children: