"There's nothing right about this, Cas." Sam leans in, kissing his forehead. "Let me untie your wrists, then I'll help you to your knees so I can get your ankles."

If Castiel could stand properly, he might have finished. But there was no way that was happening. Sam shifts over a bit, using his own strength to keep Castiel upright so that he can untie his wrists. Now isn't the time for praise, but Sam does his best to let Castiel know that he's there for him, that he's worried and absolutely cares for him. He lets Castiel down slowly, following him down so that he can get to the other man's ankles as well.