Duchess Catherine is "very hands on" as a mother.
The 34-year-old royal was joined by her husband Prince William and her son Prince George at the Special Air Service 75th Anniversary event in Credenhill, Herefordshire, England, where the two-year-old royal played with some of the other children.
A woman who attended the event wrote on Facebook: "My children played with George. He’s so handsome and Kate is stunning – something to tell the children.
"She’s a fantastic down to earth mummy, she plays with him she’s very hands on."
Whilst an SAS source added: "It was a fantastic occasion. Soldiers were not allowed to take photographs of the Royal party or the statue, which was of two troopers and an Army working dog."
During the event, the Duke and Duchess of Cambridge greeted members of the regiment, both those who are currently serving and retired servicemen, as well as watching the legendary Red Arrows perform and the Spitfires fly past.
Later in the day, a lucky Prince George got a chance to sit in the cockpit of a plane, where he asked his mother if he could "fly the Red Arrow now", to which Prince William replied, "Not right now."
Meanwhile, Duchess Catherine – who also has 14-month-old daughter Princess Charlotte with Prince William – is reportedly keen to go on a "hot summer holiday".
An insider shared: "Kate is uber-keen to get a hot summer holiday."
Duchess Catherine is ‘hands on’ mother
