When Sam gets back on the road with Dean, after Jess, things are a little different. Dean sings a lot, like he can’t stand the silences. Or maybe he just doesn’t know what to say. Dean sings to himself while he’s cleaning their guns by shabby lamp light, and Sam makes sure to roll his eyes extra hard. So hard you can almost hear it, so hard that it hurts. He waits in the soft blue glow of his laptop, a sarcastic quip locked and loaded, for Dean to finish his song. But he never interrupts. And by the time the song is over, Dean sets the guns down on the bedspread and turns to him with a goofy grin, Sam’s forgotten what he was going to say. And he thinks that maybe, that’s okay. It probably wasn’t that important anyway.