William can't keep his hands (or eyes) off Kate

Royal protocol bans William and Kate from kissing or cuddling in public, but the young couple couldn't help themselves during the Olympics, throwing their arms around each other as Britain won another gold medal.

The Duke and Duchess of Cambridge watched the British men's cycling sprint team ride to victory in the velodrome.

The young royals were overjoyed by the result, jumping up and down when team GB crossed the finish line first.

It's not the first time William and Kate have engaged in a public display of affection – here are some of our favourite romantic moments between the pair.