Gisele Bündchen's Stepson Jack Looks All Grown Up as She Celebrates His 17th Birthday: 'This Sweet Peanut'

Gisele Bündchen is celebrating her stepson on his special day!

On Thursday, Aug. 22, the former Victoria's Secret model, 44, celebrated her ex-husband Tom Brady's oldest son John "Jack" Edward Thomas, whom he shares with ex Bridget Moynahan, as he turned 17. While Bündchen and Brady are no longer together, she still took time to shows her stepson some love.

The mom of two first shared an adorable throwback snap of herself and Jack laughing together on her Instagram Story, writing, "Happy birthing to this sweet peanut!"

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Her Story continued to show a more recent picture of the two standing with their arms around one another. "Who turned into this beautiful, kind and incredible young man," she added.

"We are so lucky to have you in our lives! Love you so much!"

Bündchen and Brady, who divorced in 2022 after 13 years of marriage, are parents to son Benjamin Rein, 14, and daughter Vivian Lake, 11.

As a guest on The Tonight Show with host Jimmy Fallon in March, Bündchen shared that she's "learned so much" while raising teenagers.

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“You wait,” Bündchen teased to Fallon, as he prepared for his daughters Winnie Rose, 10, and Frances Cole, 9, to head into their teenage years. "I mean, it's amazing having teenagers and pre-teens, but…” 

“A little different?,” Fallon asked, before noting that he didn’t want his relationship with them “to change.”

The model then told him that “you learn so much” parenting pre-teens and teens.

“The most important thing [is] you have to make time to have conversations, because, I think, you know, they are changing, every day is a whole new world," the supermodel said. “And it’s so important to kind of talk, it's a huge thing.”