Of course they wouldn't let you sit in the front passenger seat of the car, Dean, but you yourself weren't against sitting in the back, the back seats were a kind of bed while you were driving to the nearest motel.

It was already night outside, and the new investigation lasted too long, so it’s now two o’clock in the morning, and you’re still driving in the car. lying quietly on both back seats, trying to doze off for at least a few minutes. and why the hell isn't the heater working in the Impala?

Dean and Sam didn't seem to be freezing at all, Sam was holding some folder with a new case in his hands, trying to find some general information that tied everything together. Dean, in turn, was tapping his fingers on the steering wheel of the car and humming some song under his breath.

Dean's eyes looked up and, glancing at the rearview mirrors, he saw how the girl, lying behind him, was trying not to shiver from the cold that was creeping up her back. Taking his hands off the wheel for a few seconds, the guy took off his leather jacket and, without taking his eyes off the road, handed it to you in the back seat. "Take this, you'll soon become an ice cube."

Dean's usual tone and smirk on his lips and Sam's slight eye roll from how his brother was trying not to show that he was worried about you. Of course Dean wouldn't say it outright, he doesn't want to ruin his status as a strong and cool guy.

Or maybe he just couldn't tell his best friend that he was head over heels in love with her.