The Duchess of Cambridge opened up about her family life during an outing on Monday, when she attended the Commonwealth service with her husband Prince William, the Queen and other senior royals. Kate, 34, revealed that her daughter Charlotte is "getting bigger by the day", while her son George is developing a passion for anything with wheels.
"He's got a scooter. He's going super fast on it," said the Duchess, rolling her eyes to a group of schoolchildren outside Westminster Abbey. "It's hard to keep up with him!"
"Charlotte is keeping him in check," she added. "She's getting bigger by the day."
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"He's got a scooter. He's going super fast on it," said the Duchess
Kate was speaking to pupils from St Matthew's Primary School in Westminster when she spoke about her son's exploits. The Duchess had attended the hour-long Commonwealth service just before, where the Queen's speech was broadcast.
The theme of the day was "An Inclusive Commonwealth" – underlining the diversity of the Commonwealth, which is made up of more than two billion people.
Kate joked that Princess Charlotte was keeping her big brother "in check"
Ellie Goulding performed Fields of Gold while former UN secretary general Kofi Annan also gave a speech.
Naturally, all eyes were on the Queen, who is head of the 53 nations. The monarch, who turns 90 next month, shared the spotlight with other senior royals including Kate, who looked impeccably smart in an Erdem grey coat and matching hat.
George is "obsessed" with anything that has big wheels
The Duchess has previously admitted that she is "filled with horror" every time her husband William goes for a spin on his motorbike. She added that she hoped George wouldn't inherit his father's passion.
In spite of this, the youngster has taken a shine to anything with "big wheels". George was given a £100 toy truck last year – his first ride – and the two-year-old likes to drive the mini tractor around the grounds of his home Anmer Hall.