Posted: Jul 11, 2014 09:07 AM MDT
Updated: Jul 15, 2016 05:42 AM MDT
Young Prince George with his newborn sister, Princess Charlotte, in a June 2015 photo.
Prince George on a royal family trip to Australia.
Prince George at Christmas 2014.
William joked George has "a good set of lungs" and his mother's good looks.
The prince even took his son into his arms and walked about with him while answering reporters' questions, showing he truly wants to be a hands-on father.
The young prince, third in line to the British throne, is known as His Royal Highness Prince George of Cambridge.