The Duke and Duchess of Sussex were later captured departing the event together.
But the jolly reunion may not be so jolly after all, as Radar readers know Kate and Meghan have had some nasty run-ins in the past.
Since Prince Harry and Meghan announced that they were expecting their first child, there's a lot of attention surrounding the couple.
This Christmas is Harry and Meghan's second stay at Anmer with Kate and Wills, as they also spent last Christmas at the 18th century Georgian property.
The Duchess of Sussex read the inspirational words of a celebrated poem as she joined Prince Harry at a special carol service with very personal links for her husband.
By making the short visit to RAF Akrotiri, the couple hope to highlight the contribution and sacrifices personnel and their families make throughout the year but especially when they are separated at Christmas.
The Duke said: "George said to me this morning where are you going daddy and I said I'm going to see some pilots who fly fast jets".
Once the newest royal baby arrives, he or she will have plenty of built-in friends, and Kate Middleton recently discussed the family's upcoming arrival during an event last week.
"Absolutely!" the royal responded in a video shared by Harry_Meghan_Updates on Instagram. Serena added that now she has to be extra selective about what she sends Meghan, due to the fact that her outfit choices are under a magnifying glass.
'It's the best of both worlds in that they can take part in all the festivities at the big house, while retreating into their own space when needed.