Golden's Links
Golden is Kaz and Limo's biological son, but that doesn't affect how he feels about him. He loves him just as much as Avalon and Cheesy. His kids are his pride and joy, and honestly he'd die for all of them. Even though Kaz is a baby and is very shy, his pups bypass that, and if anything were to ever happen to them he would flip his shit.
Despite Golden not being Avalon's biological brother like Cheesy, he loves him. He's definitely not as close as he is with his other brother, but they still all enjoy spending time together as siblings, and since Kaz and Limo feel like Cheesy and Avalon's biological fathers, they feel the same way about Golden.