"He is has co-parenting a child with his best friend, Eddie, basically since they met, 8 years ago. So much so, that it is canon that Eddie would have lost custody of his kid if he didn't meet Buck. Along with that, Eddie trusted him so much with his child that he put it in his will that if he dies, Buck will be his son's legal guardian. On multiple occasions, when he is sad, someone brings him a child to cheer him up and it WORKS. He is canonically an incredible baker so he'd be a good house wife. He is a firefighter, so he knows how to prioritize the health and well-being of those who are more vulnerable, even when he is struggling in his personal life. He literally JUMPED INTO A TSUNAMI when he was OFF DUTY to save a child that wasn't his own. TALK ABOUT MOTHERLY INSTINCTS. He had bad parents and was raised by his older sister, something he has acknowledged as an adult, so he understands the difference between good parenting and bad parenting. He is in therapy, a choice he made on his own because he knew he wasn't okay and wanted to be more okay, so he is self-aware and very capable of self-reflection and growth. He is basically a dad already, but he would absolutely love being pregnant ^ see again, people bring him children when he's sad."
"He's somewhat pathetic and unhinged, yet somehow manages to accidentally adopt a child and be a better father to that child than the birth father was-- despite the constant threatening to eat him and inability to make good life decisions. He's a loudmouth ragebaiter, but he does seem to genuinely care about Guzi/enjoy his sudden fatherhood. I say we give him another child (or two... or three...) and see what happens. Homegrown in his rotted ghostly womb."