Ant Anstead Shares Sweet Photo of Son Hudson, 6, Writing Mother's Day Card for Girlfriend Renée Zellweger

Hudson addressed the card to "Nay Nay," seemingly his affectionate nickname for the actress

NEED TO KNOW

• Ant Anstead marked Mother’s Day by sharing a sweet photo of his son Hudson writing a card to his girlfriend, Renée Zellweger
• The 6-year-old addressed the card to “Nay Nay,” seemingly an affectionate nickname for the actress
• Anstead and Zellweger have been dating since 2021

Ant Anstead is sharing how his son Hudson celebrated the important women in his life on Mother's Day — including Renée Zellweger.

To mark the holiday on Sunday, May 10, the Born Mechanic host, 47, posted two photos of his 6-year-old son — whom he shares with ex Christina Haack — on Instagram. One shows Hudson smiling while holding a bouquet of colorful flowers in the car, while the other captures the boy writing a message inside a greeting card.

He addressed his note to "Nay Nay," seemingly an affectionate nickname for his dad's girlfriend, Zellweger, 57.

"Happy Mother’s Day to all the mums and Bonus mums out there shaping, teaching, nurturing, healing and raising awesome tiny people!" Anstead wrote in the post's caption. "Hudzo is one lucky little boy! And so am I …!"

"He was so excited choosing his cards and flowers this morning!" he added. "He is One blessed boy x."

Haack, 42, commented on the post, "Sweetest Boy!!!"

Anstead — who is also dad to daughter Amelie, 22, and son Archie, 19 — and Zellweger were first romantically linked in 2021, after they met while filming Anstead's show Celebrity IOU Joyride. PEOPLE confirmed that they were officially dating in June 2021.

"Sometimes two people just meet and click, and the timing is right," a source told PEOPLE at the time. "Renée is creative … and often goes for guys who think out of the box. She's smart, thoughtful, and always looking to expand horizons and nurture those around her."

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In September of that year, Anstead went Instagram official with the Bridget Jones's Diary star, sharing a black-and-white selfie of the pair. Shortly after, Anstead revealed that he had introduced Zellweger to Hudson.

Two months later, he shared a sweet photo of the actress holding Hudson on her lap at a New Orleans Saints game on Thanksgiving Day. That holiday season, Zellweger met Anstead's daughter, Amelie, and older son, Archie, and the dad of three later told PEOPLE that the holiday meetup went "great."

"I mean, Renée's so personable, and so great with people, and they've met a few times on FaceTime, so everybody was excited to finally get together," he said. "Of course, everybody got on famously. It's really nice."

For her part, Zellweger made a rare mention of Hudson in a 2025 interview with British Vogue.

While being interviewed by her longtime Bridget Jones's Diary costar Hugh Grant, she shared that she lives "in Southern California, near San Diego."

Grant, 65, was surprised by her answer and asked, "Why?"

"Because that’s where my fellow lives, and his little boy," the Oscar winner replied.

Back in April, Anstead and Zellweger marked a special milestone in their relationship as they celebrated five years together. To commemorate the anniversary, Anstead shared a tribute to the actress on Instagram, writing in part, "Happy FIVE YEAR anniversary my beautiful lady! Hands down The best human I know! Luckiest boy! I love you my Ren 💫❤️ x."

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