Prince George, Princess Charlotte and Prince Louis made their carriage debut at Trooping the Colour for the Queen's Platinum Jubilee - and their excitement was clear to see.
The young royals beamed as they waved to well-wishers and looked around at the horses taking part in the Monarch's official birthday celebration.
But it appears that seven-year-old Charlotte, dressed in a cornflower blue dress, wasn't overly impressed by her little brother's excited wave, and she was seen telling him to stop and slapping down his hand. But Louis, four, doesn't look too put off and continues to smile.
Overhead photos also show her holding her little brother's hand during the trip, supporting him through the massive occasion.
Follow live updates from the Queen's Platinum Jubilee celebrations here.
The children were dressed in a light blue, navy and white colour scheme, with Louis donning a sailor-style top echoing an outfit worn by his father at the 1985 Trooping event.
George was dressed in a navy suit, white shirt and blue tie while Charlotte's hair was down with two fine plaits fastened with a blue ribbon.
The Cambridge kids were joined in their carriage by proud mum Kate and their step-grandmother, Camilla.
They all bowed their heads when the national anthem was played on their arrival into Horse Guards Parade.
Meanwhile their dad took part in the procession on horseback, dressed in his Irish Guards uniform.
He was joined by his dad Charles and aunt, Princess Anne, on a horse named Sir John in her Colonel of the Blues and Royals uniform as part of the Trooping the Colour parade.
Kate wore a white coat by Alexander McQueen and a hat by Philip Treacy.
The Earl of Wessex, the Countess of Wessex, the Lady Louise Mountbatten Windsor and the Viscount Severn were in the carriage behind, following by a third containing the Duke of Gloucester, the Duchess of Gloucester and Vice Admiral Sir Tim Laurence.
After the procession the children were seen peeking out of window, with Louis even doing an adorable salute to the military officers below.
