Kate Middleton can be seen lovingly blowing a kiss to four-year-old Prince Louis who kept royal fans entertained throughout the Jubilee celebrations with his antics.
The restless youngster won the hearts of onlookers as he refused to stand on ceremony by putting on a series of facial expressions over the long weekend.
The Queen appeared to be the first to be entertained by him as she stood alongside on the Buckingham Palace balcony after Trooping the Colour.
And fans were quick to spot a tender moment with a video showing Kate blow a kiss to Louis as they watched the Jubilee Pageant on Sunday.
In the clip, Louis appeared to be moving to the music of the parade and looked towards his mum who gave him a quick kiss.
Many jumped on social media to comment with one user saying: “Catherine is a great mum.”
Another added: “Such a lovely sweet gesture.”
Kate's parenting skills have been admired after she was given the tough task of keeping young children quiet during ceremonies over several days.
Lipreading expert Jeremy Freeman told the Daily Star what Kate said on the balcony to Louis when he was waving his hands around.
She said: "You have to." Louis then replied "I don't want to".
He then covered Kate's mouth. But the Duchess of Cambridge explained to her son: "I said no hands..." She then told Louis "look" and pointed at the parade.
When he blew her a raspberry, she replied: "Stop doing that."
Louis was seen standing on his chair, waving his hands in the air, wriggling around and sticking his finger in his ear during the show.
Then at one point he wandered over to his grandad Prince Charles and sat on his lap.
The future King Prince Charles rocked the cheeky four-year-old from side to side as he sat on his knee and they watched the show.
But he swiftly returned to his mother - and was seen standing on his chair again to get a better view.
Last Thursday during the RAF fly past of Buckingham Palace, fans were left in stitches at Louis' reactions.
He was seen jumping with glee at the display before covering his ears as the planes roared overhead that kicked off four days of celebrations.
He then waved up at the planes, before turning to his great-grandmother the Queen to ask a question.
His mother appeared to attempt to calm him down with a few calming words.
"Prince Louis is stealing the show," raved one fan. "Prince Louis screaming crying at the planes being too loud will undoubtedly be my favourite Jubilee moment," commented another.
