The photo shows Mia and George comparing height, as Prince George looked like a Prince William mini-me as father and son wore khaki green jumpers, blue denim jeans and Nike trainers.
Mia was rocking a very stylish purple puffer jacket, silver sequin-embellished jeans and a trendy white baseball cap with a pink heart design.
Aren't these two the sweetest!
WATCH! Prince George and Princess Charlotte have a surprusingly adult hobby!