We would guess that being a member of the Royal Family means that you have to act a certain way - even the kids can't make any mistakes because all eyes are on them.
But it doesn't look like Princess Charlotte cares much for these expectations as she issued a 'cheeky' remark to a royal photographer - you go girl.
The three-year-old was walking hand-in-hand with her dad, Prince William, after her younger brother's christening service when she told waiting photographers: "You're not coming," according to The Sun.
The family were heading off for a private afternoon tea at Clarence House after Prince Louis' christening when, absolutely hilariously, the little princess didn't drop eye contact with the member of press who was getting pictures outside the Royal Chapel at St James's Palace.
Look at that gaze and the order of service clutching - this is the definition of sassy and we love it.
Princess Charlotte. Credit: PA
This isn't the first time the young royal has stolen the show at an event like this - and at this event in fact, because she had the limelight earlier in the day when she shook hands with the Archbishop of Canterbury, looking rather damn proud of herself.
And her pops was there to sing her praises on Sunday when he told her 'well done'. What a gem.
In the past Charlotte's confident nature has charmed the public, she waved in glee at fans outside the wedding of her uncle Harry and Meghan Markle.
Then she was caught excitedly skipping at a polo event with her mum, Kate Middleton.
Thankfully for the Duke and Duchess of Cambridge, their youngest son, Prince Louis, was very well behaved during his eagerly anticipated christening, and the 11-week-old stayed fast asleep as his mum carried him into the chapel.
The christening was the first time that the Cambridges have been seen as a family of five, as both Prince George and Princess Charlotte attended their little brother's big day.
Little Louis wore a frilly cream royal christening gown which was a replica of the gown originally made for Queen Victoria's oldest daughter in 1841.
According to The Mirror, as the duchess chatted to the Archbishop of Canterbury while holding Louis, she could be heard describing her sleeping son as 'very relaxed and peaceful'.
The duchess added, with a smile: "I hope he stays like this."
Other guests who attended the christening included new aunt, Meghan Markle, and her husband of two months, Prince Harry.
The Queen and the Duke of Edinburgh were unable to attend the family ceremony. This decision is understood not to have been taken on health grounds.
Featured Image Credit: PA