Prince William, Kate Middleton and Prince Harry
Prince William, Kate Middleton, and Prince Harry during The Patron's Lunch celebrations for The Queen's 90th birthday at The Mall on June 12, 2016, in London. Getty Images/Jeff Spicer

Prince Harry was caught on camera engaging in hilarious scenes while third wheeling with Prince William and Kate Middleton.

The Duke of Sussex was very close to the Duke and Duchess of Cambridge before he married Meghan Markle. The three royals had been spotted attending various engagements together that they were called “the royal trio.”

Insider shared snaps of Prince Harry third wheeling the future king and queen and the photos will surely make royal fans smile.

In one photo, Middleton can be seen sitting between the two princes. Both Prince William and Prince Harry are then seen holding umbrellas to cover Middleton. Prince William looks unimpressed with how his younger brother tries to cover Middleton with his umbrella because he is also sitting next to the duchess who smiles while looking at Prince Harry’s umbrella in the photo.

In another shot, the duchess is still seated between Prince William and Prince Harry. Middleton is holding her phone and seems to be reading or watching something on it with the two gentlemen sneaking around to see the screen with Prince William pointing at something on it.

In another photo, Prince William is seated between Prince Harry and Middleton. The Duke and Duchess of Cambridge cuddle and look so sweet together while Prince Harry stares at something away from the couple while looking bored.

In another shot, the three royals can be seen watching something from a distance. Prince Harry who stands behind Prince William really leans on as if he were looking for someone to relieve him of his third-wheel duties or is just simply an enthusiastic spectator.

Then in another snap, Prince William and Middleton can be seen walking side by side while Prince Harry walks behind them. A netizen who shared the snap tagged the Duke of Sussex the “ultimate third wheel.”

According to some royal fans, Prince Harry smiled beautifully when he was with Prince William and Middleton. Many love the way he smiled whenever he was with his brother and sister-in-law, prompting some to miss the “good old days” when the royal trio was still together.