Dancing Queen! Every Amazing Photo From Pregnant Kate Middleton's Surprise Appearance
And the royal mom didn't miss a beat as she fell into step with the cuddly character.
Kate was all smiles as she went for a spin — with husband Prince William watching proudly by her side.
The royals met the famed storybook character along with several children linked to the young royals’ charities.
However, Kate seemed in high spirits on Monday on the train platform at London’s Paddington train station.
The outing marked Kate's second official appearance since she announced her pregnancy.
The soon-to-be mom of three wore a knee-length pale pink Orla Kiely dress with a black belt, which accentuated her tiny baby bump.