Princess Charlotte is officially set to be a big sister when Kate Middleton gives birth聽in April , but it sounds like she鈥檚 already wielding the power of an older sibling! At a recent public appearance, Queen Elizabeth revealed that the two-year-old 鈥渓ooks after鈥 her big brother, Prince George, four.

During a ceremony at the queen鈥檚 Sandringham estate in Norfolk on Sunday, schoolgirl Emily Clay was presented with a signed bible for a religious education school project. Speaking with 10-year-old Emily, the queen asked if she 鈥渓ooked after鈥 her six-year-old sister, Hadleigh. When her mother replied, 鈥淚t鈥檚 the other way around,鈥 the queen said it sounded familiar.

鈥淚t鈥檚 like that with Charlotte and George,鈥 she replied, according to People .

Charlotte鈥檚 recent first-day-of-school pics were an adorable reminder of just how quickly the little royal is growing up. In the photos, which were taken by Duchess Kate Middleton before Charlotte headed into her first day of nursery school at the Willcocks Nursery School, the young princess hammed it up for the camera, looking happy and confident in a too-cute red coat and matching Mary Janes.

It was a slightly different scene when her older brother, Prince George, arrived聽for his first day of school at Thomas鈥檚 Battersea private school last September. Looking slightly more tentative as he held Prince William鈥檚 hand, George politely met the head of his new school before calmly heading into his classroom.

In any case, we鈥檙e sure that baby number three will get plenty of guidance from both big siblings upon arrival.

Do you have an older sibling that you boss around? Let us know @BritandCo !

(Photos via Chris Jackson/Getty)