The ease of the gesture makes Sam smile, obviously remembering the trouble they'd had at the start. He tugs Castiel a little closer before making their way down the hallway toward their bedroom.

Once there, he shuts the door behind them, locking it so that Dean wouldn't accidentally walk in on them in the morning. He brings Castiel to an open spot toward one end of the room, squeezing his hand a moment before letting go. "Stay here," he tells Castiel, punctuating with a quick kiss before he starts putting their clothes in the hamper, setting his belt aside for use later. He also pulled the key to the chastity device from his jeans pocket, dropping it around his neck for another few minutes.

Once he has that set, he heads over to the closet, opening it up so that he could get the belt he normally wore with a good suit. It's stiffer, since it doesn't get as much use, but would work better to bind Castiel's hands for it.

Once he has that, he walks back to Castiel, reaching up to brush his fingers across the former angel's cheek. "Hold your hands out for me, angel," he says, watching the other man's eyes.