"Please, sweetheart."

Sam all but whimpers, devastated that you were trying to stay in the sterile room with him. The three of you were investigating a Croatoan virus infested town, and Sam had gotten bled on by one of the demon-possessed victims. He wasn't showing symptoms yet, and you'd be damned if you left him to die alone.

"No."

You snap, voice breaking.

"You're gonna be fine. I'm not gonna leave you in here alone when you're miserable and I'm not gonna let you leave me."

Sam runs a hand through his hair, a few tear trails coating his cheeks.

"Baby, I can't hurt you. You gotta go…I can't let myself do that to you and if-"

"You won't."

You plead, clinging to him desperately.

"You've been fine three hours already, you just need to be fine two more and then we'll know you aren't infected okay?"

Sam holds you in his lap, burying his face against your neck. He knew it was pointless to get you to see reason on this. Even Dean didn't. So he just gave in.