Prince Louis was up to his usual cheeky antics at Trooping the Colour today and his sister Princess Charlotte intervened.

Prince Louis and Princess Charlotte had a sibling moment during today’s Trooping the Colour ceremony, according to a lip reader.

The Prince and Princess of Wales’s children joined their parents at the King’s birthday celebrations and watched the parade from a balcony after travelling there by carriage.

Known for his cheeky antics, Louis was seen yawning and dancing along during the Scots Guards’ march to Highland Laddie. But his older sister noticed and appeared to tell him off.

Lip reader Nicola Hickling told the Mirror that as Louis danced, Charlotte appeared to tell him: “You have to stop doing that. Watch the parade”, to which he replied: “I won’t”.

Charlotte added: “Do as you’re told” but her brother responded: “Nope.”

Prince Louis and Charlotte

The six-year-old could be seen dancing along to the march as his siblings and mother stood still.

The young royal gave royal fans quite a delight as he was being his beloved self during this year’s ceremony.

Some pictures showed him yawning and playing with a blind cord on the balcony as he stood and watched the Trooping parade.

Earlier, he was seen waving as he arrived at Buckingham Palace with his family, as he also waved during the RAF flypast.