Dean- He holds you in his arms as you drift off to sleep. "Y/N, a beautiful name for a beautiful baby girl," he says.
Sam- "Oh, baby girl, stop crying," he begs as you cry. He then unintentionally makes a funny face, making you giggle. He kisses your forehead. "I love you, Y/N."
Castiel- He pops into the motel room Sam and Dean are staying at to see them taking care of a crying baby.
"What's going on?"
"This baby won't stop crying," Dean complained.
"Give her to me," Cas demanded. As soon as you were in his arms, you stopped crying.
"How did-"
"Why do you have a baby?"
"Her parents were killed by a demon we were hunting," Sam explained.
"What's her name?"
"We don't know."
"Well, from now on, I guess I'll be taking care of Y/N," he said.
"Y/N?" Dean asked.
"Yes, I quite like that name."
Gabriel- He was walking by a park when he heard crying from a bench. He walked over to see what was going on and found you in a box with a paper next to you.
He picks it up and reads it. To whoever is reading this: I don't want this baby. Take it if you want.
He then picks you up. "It seems your mother doesn't want you. I'll take good care of you... Y/N. Yeah, Y/N, I like that."
Crowley- A demon carries you to Crowley, your eyes black.
"What is that?" Crowley asks.
"A demon baby. I was wondering how you wanted me to kill her."
Crowley takes you from the demon. "You're not killing her. She will be mine, and if you ever suggest killing her, I'll kill you."
The demon leaves quickly, scared for his life.
Crowley looks at you, and the black in your eyes fade to Y/E/C. "Princess of Hell, your name is now Y/N."
Lucifer- He was walking down the street when he heard crying from an alleyway. He found you alone in a box, a rat about to crawl on you. He shooed it away then picked you up, and you stopped crying.
"Why would someone leave an adorable baby girl like you in an alleyway? Oh well, I'll never leave you, my little Y/N."