You need to see this adorable moment between Prince Louis and Princess Charlotte

Yes, three weeks later we are still talking about Prince Louis' Christmas walk debut at Sandringham.

If you haven't seen the footage of the four-year-old joining the royal family's traditional walk for the first time, there's one moment that is a must-watch.

As the family of five - the Prince and Princess of Wales and their three children, Prince George, Princess Charlotte and Louis - made their way towards the church, the youngest royal was caught on camera running full speed ahead towards his sister.

As Louis called out his sister's name, he handed her a bouquet of flowers he was given by well-wishers.

Following the sweet moment, the crowd can be heard swooning, saying: "Awwww!"

Prince Louis definitely made his debut memorable and has the whole world melting.