JB
You were coddling your new puppy and calling it your baby when JB questioned it "Are we new parents?" He asked. You nodded "We are! Look at us being a cute family JB."

Mark
Mark would not be surprised, or take notice when you commented how the dog is your baby. "Coco Can have a step-sister! When can they meet!"

Jackson
Jackson turned into dad mode. He made an IG for the dog, accepting, and playfully understanding he was the dad of their dog.

Jinyoung
"A fur-baby?" Jinyoung asked. "I am not calling our pet that name. It is not our child. We are not the parents of the dog. It had parents, that's how it was birthed." Jinyoung denied.

Youngjae
Yourself and Youngjae already call Coco your baby, so with the new dog you added the title of sibling to Coco."

BamBam
BamBam would agree to call your cat as a child, only with the understanding that you are doing this because of your motherly feelings. You agreed, and then picked up the cat and coddled your cat.

Yugyeom
This was something you were upfront with Yugyeom from the beginning. When he agreed, and explained his desire to adopt another animal with you, where they can be a meshed family.