Before Sam had learned to control Dean as a demon, life was rough. Dean had gone after Sam with an axe for God's sake. But once they were over that, it was okay. Sure, Dean had occasional bouts of unexplainable rage and fury, but by now, Sam knew how to deal with it.
"Sam!" His voice was a rusty growl, full of malcontent. "Come out, come out, wherever you are."
Sam Winchester had his back to the wall and was clutching his weapon tightly in his hand. He peered around the corner, but the living room was empty. As soon as he pulled back around, a fist came flying at him. Sam ducked and heard the fist smash into the wall, splintering the plaster. "Dean!" he gasped, rolling away from his brother. Dean smiled, eyes dark as pitch. "Hey Sammy. Wanna play a gam-"
His words were cut off by the sound of liquid being squeezed out of a bottle. As soon as the mist hit Dean's face, the demon roared in agony and annoyance. "Is that...?"
Sam gave him his best bitch face. "Holy water, yeah."
"I'm not a fucking dog!"
"Right. You're just my murderous, bloodthirsty demon-brother."
"I will kill you!" Dean spat, lifting his hand again.
Sam's finger pressed the trigger of the spray bottle and he was answered by an irritated bark.