Chris Pratt Shares Rare Photos of 'Wonderful' Son Jack on His 12th Birthday: 'I Love You So Much, Kiddo'

The Marvel actor posted pictures of himself and his son at a farm together in honor of Jack's 12th birthday

Chris Pratt's son Jack is all grown up!

On Saturday, Aug. 17, the Parks and Recreation alum, 45, posted some rare photos on Instagram of his oldest child, who turned 12.

"Happy Birthday to my wonderful son Jack," Pratt began his caption. "I thank God every day for you sweet boy."

He continued, "You are so smart, hilarious, kind, thoughtful, trustworthy and tough. I love you so much kiddo. Twelve!? I honestly can’t believe it."

The photos shared showed the father-son duo spending some time on a farm. In one picture, Pratt and Jack could be seen feeding a cow. In another, Jack held a calf close to him.

Related: Chris Pratt's 4 Kids: All About Jack, Lyla, Eloise and His Baby on the Way

In more pictures, Jack watched sheep eat, and he then fed them himself by hand in another. One other image featured Jack standing tall next to a horse.

Pratt shares Jack with his ex-wife, Anna Faris. The former couple named him after Faris' father.

Along with Jack, Chris is also father to Lyla Maria, 4, and Eloise Christina 2, along with a baby on the way, whom he shares with his wife Katherine Schwarzenegger.

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Related: Chris Pratt Reveals the 'Big Difference' He Sees Between Raising His Daughters and Son: 'It's Wild'

While growing up, Jack took a keen interest in his father's acting career, watching his movies and visiting him on set.

The Jurassic World actor told PEOPLE in April 2023 that Jack "freaked out" hearing his dad's voice in the Super Mario Bros. Movie.

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"He saw it already and he's thrilled. He loves it," Pratt said at the time. "He took all his friends and he really freaked out."

The proud dad added, "My daughter's a little too young to see it, but when they do see it, hopefully, they'll think their dad is cool."

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