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Duchess Kate's sister Pippa Middleton went on a shopping spree at trendy children's boutique, Amaia, in London's Chelsea Green neighborhood, reports People. The store is a favorite of stylish tot Harper Beckham and famously supplied Prince George with his beloved knee socks.

"Pippa bought a little outfit for Charlotte: a Liberty print pink top with bloomers in a matching fabric and a cardigan," said shop co-owner Amaia Arrieta.

"She also bought a blouse with a frilly collar … She said she wanted a whole look," the shop owner added.

Pippa purchased the tiny items in the three-month size, so it won't be long before the royal wee one will be able to wear the adorable duds.

Aunt Pippa is doing a great job at cementing Princess Charlotte's new title as most stylish baby in town!