The Duchess of Cambridge was filmed blowing a kiss to her youngest son Prince Louis who appeared to be getting restless as the royals watched the Jubilee Pageant.

The 4-year-old became a star during the Queen’s Platinum Jubilee celebrations after he showed off his entertaining expressions a number of times.

In one sweet moment, Kate blew a quick kiss to her son who was looking at his mother.

The sweet gesture was spotted by many royal fans, with one saying: “That little kiss to Prince Louis, my heart!! Catherine is such a caring and sweet mom.”

Another wrote on Twitter: “Awwww, that little air smooch.”

A third said: “She is amazing and so are her offspring.”

Louis stole the show during the four-day celebrations by pulling hilarious faces throughout the events.

During the flypast, the youngest Cambridge made grumpy faces and even covered his ears while standing on the Buckingham Palace balcony with his family.

Louis was also seen putting his hand over his mother’s mouth, sticking his tongue out, waving his arms vigorously in the air, standing on his seat to get a better view, and clenching his fists.

The restless young royal also jumped out of his chair and sat on his grandfather Prince Charles’ knee, who kept the boy entertained by pointing out interesting parts of the parade.

Louis alongside his sister Princess Charlotte, 7, brother Prince George, 8, and their father Prince Wiliam, 39.

Behind the young royal was Mike Tindall who also entertained the four-year-old with funny faces.

“Unfortunately for Prince Louis, he can’t be mischievous because Mike will make sure he behaves,” one Twitter user wrote.

“Prince Louis deserves is own meme section! I cant with how expressive his face is!! Love you little bug!” another said.

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