Kate Middleton honored the promise she made to Mila Sneddon, who at the time was only four years old and was undergoing "intensive chemotherapy" in 2020 when she participated in Middleton's Hold Still photography project. A picture of Sneddon kissing her father through a window pane during lockdown, called "Shielding Mila," was featured in the project, and according to the Daily Mail, Middleton called the "very brave" little girl on the phone to talk to her personally after seeing the emotional photo that the girl's mom snapped. After learning Sneddon's favorite color is pink, Middleton told her, "I'll have to make sure I try and find a pink dress. Hopefully when, one day, hopefully, Mia, we'll get to meet and then I'll remember to wear my pink dress for you" (via People).

Fast forward to almost a year later, and the Duchess of Cambridge made good on her promise, donning a "sugar pink bubblegum" color block skirt dress by Me+Em while visiting the young girl, who was wearing an adorable light pink dress, complete with a tiara, of her own. "I want to give you a big, squeezy cuddle," Kate told her pretty-in-pink mini-me, adding, "I love your dress. Can you give it a twirl?"

Fans praised Middleton for her kind gesture, with one Twitter user writing, "Kate is pure class. What a delight for Mila," while another added, "Two princesses in pink meeting each other."