Prince George and Princess Charlotte Wear Matching Outfits at Aunt Pippa Middleton's Wedding

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Just when you thought they couldn't get any cuter, Prince George and Princess Charlotte step out in matching outfits for their Aunt Pippa Middleton's wedding.

Prince William and Kate Middleton's 3-year-old son and 2-year-old daughter joined the bridal party at St. Mark’s Church in Englefield on Saturday, both dressed in white-and-tan Pepa & Co attire. Princess Charlotte served as a bridesmaid and looked adorable in her floral headpiece. She even flashed a big smile while with her mom.

MORE: Pippa Middleton's Billionaire Fiance -- 8 Things to Know About James Matthews

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Getty Images

As for her older brother, Prince George looked a lot like his father, Prince William, when he served as a pageboy at his uncle Prince Andrew’s wedding to Sarah Ferguson in 1986.

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Kensington Palace confirmed George and Charlotte’s roles in Pippa and financier James Matthews' wedding in April.

WATCH: Inside Pippa Middleton's Final Day Before Wedding -- Plus, How Meghan Markle Is Spending Her Time in London

Pippa and James -- who runs the British hedge fund Eden Rock Capital Management -- got engaged in July 2016 after rekindling their on-again, off-again romance last January. The couple first started dating in 2012.

Princess Charlotte also looked a lot like her aunt and mom when they were young bridesmaids for their uncle's wedding in the '90s. Check it out:

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