Ciara and Russell Wilson welcome son Win Harrison
Baby Win joins Ciara and Russell Wilson's daughter Sienna, 3, and the singer's 6-year-old son Future
Family of five!
Wilson, 31, shared a selfie from the hospital of himself with his wife and their new addition, captioning it, "Happy Birthday WIN!!! Mommy & Daddy Love You!"
He went on to share his son's full name, birth date of Thursday, July 23, and birth weight of 8 lbs., 1 oz.
Ciara, 34, posted video footage from the hospital of her holding baby Win in her hospital bed shortly after his arrival, singing "Happy Birthday" to her "sunshine" from under a mask.
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The singer and NFL star first announced they were expecting again in January, revealing the news on Instagram with a photo of Ciara in a bikini, showing off her bare baby bump. Wilson also shared a version of the photo, taken instead as a selfie with his wife in the background.
"Number 3," the "Goodies" singer captioned her post, giving credit to her husband for taking the picture, while a source close to the couple told PEOPLE at the time, "They're so excited to expand their family."
They stepped out a month later when they attended the Vanity Fair Oscar Party following the 2020 Academy Awards. Ciara showed off her baby bump under a one-shoulder dark gray sheer gown with a thigh-high slit over black corset-style undergarments, standing tall in a pair of stiletto sandals.
"YEAH!" little Future screamed excitedly in the video shared to Wilson's Twitter account, clearly stoked about getting a baby brother as he ran around the yard.
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Over the last several months, Ciara has shared a bevy of stunning snapshots in which she bared her baby bump for the camera. In a particularly serene black-and-white photo posted on July 18, the "1, 2 Step" songstress was shown posing submerged in a pool, showing off her belly in a black-two piece.
Ciara opened up about finding love again with Wilson after calling off her engagement to Future, 36, on Jada Pinkett Smith's Facebook Watch show Red Table Talk. Though she said dating as a single mom was initially intimidating, Wilson, who came into the picture when her son was 10 months old, made it easy.
"It was different. I never had that feeling in my life," she said during the June 2019 interview. "It was calm. … It's a different level of love."
The Seattle Seahawks quarterback often professes his love for his growing family, too. In late March, while social distancing amid the coronavirus pandemic, Wilson shared a sweet clip of himself working out with little Future.
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