There's a muscle that ticks at the corner of Sam's jaw, then he nods. He keeps hold of Castiel's hair, though. "Good," he says. "Then, when I let go of you, you're going to go and kneel down like I ordered you to earlier. You will be quiet while I prepare your punishment."

Which was going to have to be harder than he'd thought earlier. Which meant he needs to make a few changes, but nothing too much.

"Do you understand?"