When Leanne Seed and her partner Sean welcomed their newborn daughter Phoebe into the world, one of their biggest concerns wasn’t sleep or feeding schedules—it was how their beloved dog Sunny would react. Already proud parents to two dogs, including Sunny who joined the family in 2019 to keep their first dog Cooper company, the couple had some hesitation about the new dynamic.

In a heartfelt TikTok video, Seed admitted she was “nervous” about the introduction. Would Sunny feel jealous? Would he bark, growl, or be afraid of the new baby? The unknowns were real, and the stakes felt high. But the moment they brought Phoebe home, everything changed.
Far from acting out, Sunny became enamored with his new tiny sibling. He followed her around, licked her gently on the head, and sat close to her at every opportunity. “He’s been besotted with her,” Seed shared, visibly emotional over the unexpected bond forming between dog and baby.
The initial shyness wore off gradually. While Sunny was tentative at first, it didn’t take long before his desire to be near Phoebe was unmistakable. In one adorable scene from the video, Phoebe smiles up at Sunny just as he offers a sweet lick. For Seed, it was the validation of everything she hoped for—and more.

The couple took care to manage the transition responsibly, separating the dogs when busy and never leaving them alone with the baby. Despite knowing their dogs were “good boys,” they remained cautious, using room dividers and always supervising interactions. But Sunny’s behavior surprised and reassured them completely.

The video has since touched the hearts of over 81,000 viewers. Many parents and pet owners chimed in, praising Sunny’s gentle nature and sharing their own hopes that their pets would behave similarly when a new baby arrived. For Seed, it’s become one less worry and one more moment of joy in the early days of motherhood. “It’s just so cute,” she said, beaming with pride at her dog’s transformation from potential concern to devoted big brother.
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We are so proud of Sunny! he has been such a good boy and the best big brother. We were so worried about him but he has completely blown us away. He’s stopped barking, wants to sit next to her, always peering over at her he’s just been incredible. It was our biggest worry and he is now one of our least. We adore our dogs and we know they’re good boys but we don’t and won’t ever trust them around Phoebe. They always wear their collars now, we separate them when we’re busy with the baby (we bought a room divider), and they can come and chill with us and her when she’s sleeping and we aren’t doing anything else except watching her. We didn’t do anything with them prior to baby’s arrival other than force my friends to bring their kids round and throw them into the ring with the dogs and see what happened.
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This content was created with AI assistance and edited by the iHeartDogs team.