Prince William and Kate Middleton joined the rest of the royal family for their annual Christmas walk in Sandringham on Christmas day, and were accompanied by Prince William's step siblings, Laura Lopes (aka his " secret sister ") and Tom Parker Bowles.

George, 11, Charlotte, 9, and Louis, 6, walked alongside their parents Prince William and Kate, the Princess of Wales, as members of Britain's royal family made their way into St. Mary Magdalene Church for their traditional Christmas Day service.

Prince William, along with other members of the royal family, celebrated Christmas Day at the Sandringham estate. Opening up about participating in the festivities with his close ones, the Prince of Wales revealed that he had the most fun amongst all of them.