Prince William reveals why Prince George might end up on Santa's naughty list!

Naughty Prince George has already started opening his Christmas presents.

Prince William revealed that his three-year-old son was too excited to wait for the big day and had been sneakily opening a few of the gifts under the tree at Anmer Hall, the family's Norfolk home.

The Duke of Cambridge, who was joined by his wife, the Duchess of Cambridge and his brother Prince Harry at a royal Christmas party engagement, shared the adorable story with KISS FM DJ AJ King.

After the event, AJ revealed, "I had a really nice chat with Prince William who told me that this was their last week at work, as it were, before Christmas. He said they were all really excited about it and that George is already opening his presents."

"He thought it quite funny. That's kids for you, even the ones that are princes!"

The Duke and Duchess of Cambridge, together with Prince George and Princess Charlotte, will be spending Christmas with the Duchess’s family in Bucklebury, Berkshire, this year, rather than the traditional royal get-together at Sandringham.