Dean had been trying to help you understand sarcasm and his sense of humor for what felt like decades now. In reality it was closer to three months, but still. Dean was driving with you and Sam to your next case up in Montana, passing by what absolutely smelled like a dead skunk. He wrinkles his nose.
"Mm, smells like freakin' roses."
Dean groans. A little giggle from the backseat startles him, and his head whips around to see you genuinely laughing at his joke. You understood. His green eyes light up as he looks back at the road, a grin plastered on his face. Sam side-eyes him, taking in the elation and pride on his brother's face. Damn, Dean had been trying so hard and finally you got it.
"Baby, you got it."
Dean encourages you proudly, glancing at you through the rearview mirror, his eyes crinkling.
"Wasn't so hard huh?"
"That's what she said."
The car goes silent at your response before Dean bursts out laughing.
"Where on earth did you learn that?"
"TV."
"Yeah, you did."
Dean says again, even more proud. Sam sighs, shaking his head.
"Congratulations on your corruption."
"Hey."
Dean smacks his chest.
"She should be congratulated, she's cool now."