The actress and fiancée Ramona Agruma both highlighted the sweet celebration on Instagram over the weekend
The actress, 43, posted a behind-the-scenes look at her little girl’s celebration on Instagram Sunday, which was full of cake, balloons and laughter.
In a first Instagram Story post, Wilson — who welcomed Royce via surrogate in November 2022 — filmed a table covered in treats and decorations, which she soundtracked to Stevie Wonder’s “Happy Birthday.”
She then showed followers a cake stand that featured several sweet treats, including pink frosted cupcakes and chocolate-covered strawberries, along with several sweet photos of Royce and the actress.
As the camera continued to pan over the table, the clip showed balloons, flowers and cards, as well as a cake decorated with starfish and fishtails made of icing. Wilson then panned to a mermaid doll sitting below a balloon that read “1st Birthday.”
Next up, the Pitch Perfect star shared a video of the birthday girl in her outfit for the special day — a pink dress, first birthday bib and a pair of gold wings.
As Royce squealed and clapped, Wilson spoke to her while filming. “Happy birthday, Roycieeee!” she told the little girl, before she panned the camera up to show a large display of pink balloons behind her.
A later Instagram Story video showed the actress reading a book to her daughter. As Royce quickly turned the pages, Wilson — who wore a polka dot black dress for the party — joked that her daughter was “a speed reader.”
Wilson also posted a photo on her Instagram feed that showed her holding Royce — in an adorable white dress — as they stood inside a church.
"Happy 1st birthday baby " she captioned the smiling snap.
Over on her own Instagram, Wilson's fiancée, Ramona Agruma, shared her own sweet account of Royce’s first birthday bash.
One photo showed Agruma, 39, as she held the birthday girl while standing next to the sea-themed birthday cake.
She smiled as Royce held her hand out towards the cake, while a “Princess” sticker she added over the image gave a nod to the baby's sweet outfit.
Another shot showed the fashion designer and Wilson sitting at a table with the birthday girl in between.
The actress held a lit candle in the shape of a number one in front of her baby girl as Agruma clasped Royce’s hand.
Back in August, the actress — who announced the arrival of her daughter in an Instagram post — opened up to PEOPLE about her family of three and how it impacted her plans for this year.
“It’s the ‘Year of Family,’ ” Wilson said at the time. “We are building our family unit and working on how we do things as a new little family.”
The family's birthday celebrations took place after Wilson got into the Halloween spirit on her Instagram Story Friday, when she posted a cute photo of herself and Agruma sharing a kiss in their spooky season costumes.
"Forgot to say: HAPPY HALLOWEEN," Wilson wrote across the image, along with a jack-o'-lantern emoji.
In what appeared to be a nod to the actress’s 2022 comedy Senior Year, the two wore matching green cheerleader outfits as they embraced.
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