Dean buried a hand in Sam's hair, with all the intentions of pulling it, but instead it just sort of stayed there, buried, and he wrapped his leg tighter around his brother's waist as he reached up with the other hand to get at the keys.
"God dammit, stupid tall bastard," he growled at him, turning his head to bite into his arm again. And it was just then, when they slid together in that incredible way, that Dean tensed up, taking a sharp breath in, and he dropped his arms back above his head, across the floor, his leg releasing the snake-like grip around Sam's waist.
"Sammy..." he breathed, chest heaving as he tried to calm his nerves.