Sex dungeon? Sam isn't even going to touch that one with a ten foot pole. Nope. He sighs and stops behind his brother, fishing out the keys from his pocket.

"No, Dean. I just merrily agreed to lock him up for you in chains in our 'sex dungeon'. Of course I told him that." Okay, so maybe he was going to go there a little, but only in hopes of pointing out to Dean what he just said in case he missed in, and in hopes that he will get a damn clue already. He hands over the keys.

"I know it's hard for you to forgive when the people you care about mess up big, but you've gotta remember that I have the certainty of knowing you're still my brother when I mess up. Cas still looks at you like he can't believe you're real. His concept of family isn't the same as ours is, he's never had a friend before, and he's never had -" too much. "Well, you get the idea. Cut him a few breaks if he acts like he's fifteen and going through his first break up. What he's doing is obnoxious, and kind of stupid, but you can't say he's not trying."

"Seriously?" Sam blurts it out without asking because damn it, Dean. It's one thing to be oblivious to your own emotional melodrama, but surely he should know that - ugh no he shouldn't it's Dean.

"Maybe this is going out on a limb here, but ... you know you could always just ask him."

He's not trying to be cruel, really he's not, he just ... how can Dean not know? He sighs exhausted and runs a hand through his long hair, scratching his scalp.

"Well, if he doesn't know then you and he are the only ones that don't." He shakes his head and just ... it's his instinct to want to look after Dean, and try and help him through his emotional ... whatever - but at the same time it's not really his place to spell this shit out for Dean. "He wants the same thing you do."

He can't force his brother to do anything about it if he insists on being stubborn, but he's done what he can short of locking them in their together, which as tempting as it is would probably turn out to be a bad idea in the long run.

"Whatever you say, Dean. Look, you don't have to figure it out with me. It's him you've got to talk to. Just don't be a stubborn ass." He claps his brother once on the arm, gives him a supportive smile and then steps back.

"I'll be in my room."

Sam feels like crap, but he doesn't need to be fussed over the way that Dean wants to. He's half convinced that Dean's doing it at least in part to avoid dealing with his own shit. "I'm fine Dean. I can make it to my room by myself. Go deal with your angel."

He brushes him off, gently but firmly and then heads back the way they came out of sight.

"Dean," his voice sounds exhausted, as if Dean is missing a very obvious point. "I'm not suggesting this as a permanent solution. You said that I can't guarantee that I will stay, this way I can. I can't fall back on Naomi's programming and neither can she take me. I am doing this willingly, I want to be here. This is where I want to be."

He thinks about arguing and thinks about earlier and then the fight goes out of him. His stomach twists unhappily and gives his wrists over but turns his eyes away from Dean to look past him at the wall opposite. "You won't even let me try, will you?" He doesn't mean it to come out as sulky as it does but really Castiel is at the end of his patience. He can't take another year of this, he feels like he can't take another day.

He's not reading Dean's mind, but what he says puts the pieces together well enough. "I meant you're not going to let me try everything I can to fix this. I can't give you the security that I won't leave if I can't give you some kind of guarantee. I thought this could be it. It was all I could think of."

He hasn't even been down there an hour but already his wrist is sore and a little stiff from the tight cold metal. "Dean."

"Dean you don't have to ... " he huffs unhappily and looks away. "Don't bother Sam. I didn't do this to get your attention or impose my company on you. You don't have to put your brother between us. I know you're uncomfortable around me. You've made that abundantly clear."

It hurt, but seeing Dean use his brother as a buffer hurt more and he'd rather Dean push him away once outright than patronise him and made Sam play babysitter to them both.

"Then what are you doing? You don't have to babysit me." He stands up when Dean starts pulling but he stays standing in the same spot, digging his heels in, going nowhere. "I won't put you out of your bed just because you didn't like my solution. This is completely unnecessary."

He gives up. Dean wants him out of the dungeon, fine. He'll go. There's absolutely no sense in arguing it because Dean is just going to keep badgering him to go. And when the angels find a way to take him or they get separated again it will be all on Castiel once more and he can't stand the thought of it but figures he might as well get used to it. It is inevitable.

His face hardens a bit in anger and he stares intensely at the other man, before finally moving forward, storming past him and heading for the door. He doesn't know where he's going yet, just not here.