Slowly, Sam's hand loosens from Castiel's hair and he strokes it, smiling down at Castiel. "Very good," he murmurs. "So very good for me, Cas."

He keeps standing there for a few moments, getting his breath and balance back. Once he's certain of his footing, he lets his hand fall from Castiel's hair. "Come on. Onto the bed now. I still owe you a massage first."