A new photo of Prince Louis playing with Prince Charles has been released - and it is super cute!

Apart from a few official portraits, the world has seen very little of Prince Louis.

But get ready for your heart to explode, because a never-before-seen photo of Prince Charles sharing a precious moment with his six-month-old grandson has just been released!

As part of a BBC documentary celebrating the future king's 70th birthday, the adorable snap shows a smiling Prince Charles holding hands with the royal tot, who's in the arms of Kate Middleton.

Photo: Chris Jackson/Getty Images

According to the Daily Mail, the photo - which was shot by royal photographer Chris Jackson - was taken in September in the gardens of Clarence House.

Unfortunately, it is hard to see Louis' face, but even from his side profile, we are getting major flashbacks to Prince George at this age.

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Besides the family's traditional photo on the Lindo Wing steps, Prince Louis has only been seen on a handful of occasions.

The last time royal fans got a glimpse of the youngster - who was born on April 23 - was in July, when the Palace released a photo of the little boy in the arms of his mother, taken on the day of his christening.

According to Us Weekly, the littlest royal has changed a lot since the last photos of him.

A source told the publication: "He’s still very chubby but he’s grown fast and has a lovely head of hair on him. He’s very quiet and content, always smiling and happy.”