Queen Elizabeth's grandnephews show off their toned physiques with their girlfriends

Samuel and Arthur Chatto, Queen Elizabeth's grandnephews, displayed their toned muscles on social media as they enjoyed a holiday with their girlfriends.

A photo on Instagram shows the siblings - who are sons of Lady Sarah Chatto, the only daughter of Princess Margaret - standing shirtless behind their girlfriends who are sitting on a rock in the waters of the Mediterranean.

Samuel's girlfriend, Sophie Pipe, shared a few photos from the foursome's recent vacation in Greece.

“Rockin with my shoalmates,” she captioned the shot, in which the brothers pose behind their partners.

Pipe also shared a few couple shots featuring Samuel, 22, and herself having some fun in the crystal clear water.

Follow us on our Twitter account @amomama_usa to learn more.

“O hi ! We’re having a whale of a time! We saw a sea turtle! she was pure magic and filled me to the brim with joy (see my face for further details),” she captioned the photos, peppering it with several emojis.

INSTAGRAM-SAVVY ROYALS

Pipe's Instagram account is full of pics of her with 22-year-old Samuel. But 19-year-old Arthur and his girlfriend, Lizzie Friend, appear to be keeping their relationship out of the public eye. Lizzie's account is private while Arthur's features mostly solo shots or pictures with his friends and family.

Samuel and Arthur, who studies at the University of Edinburgh, are 24th and 25th in line to the throne, respectively

The Chattos were spotted at Meghan and Harry's wedding in May. The brothers shared photos from the event on their respective Instagram pages.

Samuel and Arthur are only a few of the young royals that have been drawing fans all over the world.

ANOTHER ROYAL WITH GROWING FAN BASE

Prince Nikolai of Denmark has also caught the public eye, after celebrating his 18th birthday on the royal yacht Dannebrog on August 28, 2018.

Her Majesty Queen Margrethe II hosted a private dinner party on board the vessel, which was docked at Amaliehaven, in honor of her eldest grandchild.

The Danish royals attended the lavish event, with even some of the prince's little cousins making an appearance.

Nikolai was joined by his parents, Prince Joachim and Alexandra, Countess of Frederiksborg, who split in 2005. His stepmother Princess Marie was also in attendance.

The teenager’s grandfather Prince Henrik, younger brother Prince Felix, 15, and half-siblings Princess Athena, five, and Prince Henrik, eight, also joined the celebration.