Prince GeorgeandPrincess Charlottearewedding portrait pros!

After taking their turn as apage boy and bridesmaid for the fourth timein under two years, the royal siblings gave picture perfect smiles forPrincess Eugenie’sofficial wedding photographson Friday.

At just 3 years old, the little princess appears to be doing a mini version of her royal mom’s signature move.

“Typically the ‘Duchess Slant’ is used when a lady has to sit for an extended amount of time while keeping poise and posture,” Myka Meier, royal etiquette expert and founder and director ofBeaumont Etiquette, previously told PEOPLE.

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Prince Harry, Meghan Markle, Kate Middleton and Prince William.Chris Jackson - WPA Pool/Getty

First Annual Royal Foundation Forum

Kate (and nowMeghan Markle!) have been regularly photographed using the “Duchess Slant.”

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Royal Wedding of Princess Eugenie and Jack Brooksbank in Windsor, United Kingdom - 12 Oct 2018

Princess Eugenie Of York Marries Mr. Jack Brooksbank

Also among the bridesmaids is Theodora Williams, 6, the daughter of British singer Robbie Williams and his wife Ayda Field. And among the page boys is Louis De Givenchy, 6 — the son of Zoe and Olivier De Givenchy.

source: people.com