Kate Chastain Shares Adorable Photo of Her Newborn Son and His "Best Friend"

Kate Chastain’s new home is brimming with love.

The Below Deck alum took to Instagram on May 20 to share another precious photo of her newborn son, Sullivan Cay. The picture showed the infant nestled in a lounger pillow as Kate’s beloved dog — a Havanese named Halo — gently rested his head next to the baby. We know, the cuteness factor is almost too much to handle.

“Best Friends,” the former chief stew wrote on the Instagram Story.

Kate shared the heartwarming snap just weeks after announcing the birth of her first child. The Florida native confirmed her pregnancy in December 2022, when she posted a mirror selfie that showed off her baby bump: “I’m already planning so many birthday theme parties for you,” she wrote at the time.

The new mother has not revealed the identity of Sullivan’s father, but previously confirmed she was raising the child “solo.” She shared the information during a late 2022 appearance on Watch What Happens Live with Andy Cohen, insisting she was “happy to do it alone.”

“I think being a chief stew really trained me for it,” Kate jokingly said during the WWHL After Show.

Below Deck alum Kate Chastain posts photo of her newborn and her dog. Photo: Kate Chastain/Instagram

More than a month after her Clubhouse appearance, the former yachtie shed more light on her pregnancy journey and exactly why she was looking forward to being a single parent.

“I think, from people seeing me on Below Deck and Traitors, I’m fiercely independent,” she said on Page Six’s Virtual Reali-Tea podcast. “I don’t really love people’s opinions being different than mine and trying to make me go their way. So I really am so excited that I’ll be able to do this exactly how I want to.”

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Kate then addressed the “overrated” advice she received as she approached her due date.

“‘Just enjoy it, blah, blah, blah,’” she recalled. “Yeah, I’m enjoying it, OK? It’s true. I kind of have been hiding from being as social as I was, because when you’re pregnant, it comes with 20 questions and 30 pieces of advice. It’s like, listen, we’re all just gonna do the best we can here.”