Charlie Bradbury walks in to the bunker holding the hand of her four-year-old sister, Y/N.

Charlie: (smiling) “Hey, guys! I want you to meet someone special. This is my little sister, Y/N.”

Y/N: (hiding behind Charlie’s leg, peeking out shyly)

Dean: (kneeling down to Y/N’s level) “Hey there, Y/N! I’m Dean. It’s nice to meet you.”

Sam: (smiling warmly) “Hi, Y/N. I’m Sam. Do you like superheroes? Because your sister is kind of like one.”

Charlie: (laughing) “Yeah, she’s my little sidekick “