Summary: Dean is sick. Sam takes care of him.
Dean Winchester feels horrible. He'd never admit it out loud (especially to Sam, who is still reeling from the events of the past few months), but Dean really does feel like crap.
Sam knows his brother is sick and appreciates that Dean is trying to protect him. That's always what his big brother does, and Sam loves him for it. He also knows that when Dean is really sick, he'll take care of him just like his big brother always takes care of him when he's sick. That doesn't stop him from hovering over Dean. "Are you okay?" Sam questions.
Dean holds back on rolling his eyes. He knows Sammy is just worried. "I'm okay," he lies. And then coughs.
"You're not fine, Dean." Sam checks Dean's forehead and his brother is burning up. He definitely has a fever.
"Stop that," Dean tells him. He understands why Sam is doing this. He'll probably end up sick too, but that won't matter to his little brother as long as Dean is taken care of.
"You have a fever. Lie down," Sam orders. Dean has no choice but to obey and lies down on the bed. He falls asleep quickly.
Dean wakes up to Sam wiping a washcloth across his face. "Hi," he tells him.
Sam smiles. "Hi back," he replies. He's been taking care of his brother for about eight hours now, and the fever has finally broken. Sam doesn't mind doing this for Dean.
Before Dean goes to sleep, he murmurs, "Thanks, Sammy."
"You don't have to thank me, Dean." Sam doesn't leave Dean's side for the rest of the night.
Dean returns the favor after Sam gets sick.