AN: Okay, so as weird as it looks and as hellish as it is to edit, during scenes in Cas' POV God/Chuck will have pronouns capitalized (He, His) because although Cas has no respect for him, it would make sense for it to be ingrained in his mind to think that way. So don't be confused, if Cas says/thinks "Him", he's not referring to the Powerpuff Girls' villain.
"Cas, what the hell?" Dean yells, grabbing the gun again. "Do you have a death wish?"
Cas doesn't tell him that right now, he doesn't give a shit whether he lives or dies. Maybe it's the adrenaline, maybe it's the betrayal, or perhaps it's the fact that this world may be just as fucked as the one he spent years trying to leave.
The devil laughs as Chuck gets up. The bullet is pushed out of the Lord's forehead. He doesn't look angry.
"I understand your anger," Chuck explains.
"There is no way You could possibly understand my anger," Cas growls as he runs towards Him. He knows there is nothing he can do to hurt the immortal deity, but Cas doesn't care. Dean and Sam grab him but Lucifer rushes into the group and pries the brothers away.
"Let him have his fun," the archangel says gleefully, though still clearly in discomfort from his injuries.
When Cas reaches his Creator he raises his right fist, forgetting that his hand is broken until it hits Chuck's hand, who raised it to block the punch. Cas howls out in pain until an icy hot tingly feeling travels from his fingertips all the way through to his wrist.
This act of "kindness" only makes Cas angrier and he jerks his arm away. "I don't want Your healing, you son of a bitch."
Chuck doesn't protect Himself from the next swing, or the one after that. In fact, He falls to the floor and bleeds. He must be powering Himself down. Moments ago He pushed a bullet out of His head like He was popping a zit, and now He's bleeding from a few punches from a weak and slightly intoxicated fallen angel who is now straddling Him.
"You stood back and watched as Lucifer destroyed humanity!" Cas yells, shaking the man beneath him. He hears the crack of his Father's head against the marble flooring.
"Ooo," Lucifer comments. "Intriguing."
Sam and Dean tell the Devil to shut up before continuing to yell at Cas to stop. Neither attempts to stop the chaos have any effect.
"You watched me fall. You watched me turn into this hopeless excuse for a human while You… collected toilet paper?!" Cas punches Chuck again.
"Wow, I'm actually glad I didn't pop angsty Cas' head off of his shoulders," Lucifer chimes in. "Go worm!"
"You knew Dean was sending us into a death trap. You know Lucifer was going to snap Dean's neck under his boot." Cas lands his hardest right-hook yet at the haunting memory. He splits the God-man's cheek.
"Ouch," Lucifer says in mock remorse. "Was I wearing Sam? Please tell me I was wearing Sam."
Everyone ignores him. Cas looks down at the "prophet" he once considered one of his closest friends. His only friend after the massacre killed the rest of the camp.
"And then You disappeared," Cas laments. Chuck nods, His face covered in blood. Why is God, who still has His power, letting Cas do this?
"Could You have stopped it?" Cas asks. He doesn't realize he's crying until he sees a tear fall down onto Chuck's face, mingling with the blood.
"Yes," Chuck croaks.
"You bastard. As Your son, I prayed to You. As Your friend, I trusted You. I risked my life for You. And the whole time You were betraying me. Forsaking me." Cas gets ready to throw another punch.
"Cas, that's enough!" Dean yells, struggling against Lucifer.
"No, I don't think so," Cas grinds out, using all of his measly strength to strike his Maker again. "Can You even feel this? Does this even hurt?"
Cas raises his arm again but stops when Chuck says quietly, "Yes. Very much."
Cas isn't sure if He is only talking about the physical pain or also the emotional hurt, but either way, Cas is taken aback. So is Lucifer, apparently, because Dean slides out of his grasp and pulls Cas off of Chuck.
The fallen angel doesn't know if he's angry with Dean or not. Cas decides to figure it out later and leans back against the hunter's chest, panting from over-exertion.
Chuck still isn't healing. It's like He's suppressing the automatic divine physical response. But why? Did He want to be punished?
"We all need to talk later," Chuck says shakily. "You need more rest," He tells Cas who laughs cynically.
"Now You care about what I need?"
Chuck just looks at him sadly and heads down the hall, a smug Lucifer and a reluctant Sam in tow.
"Cas," Dean says hesitantly, helping his friend up off of the floor.
"Be quiet," Cas says, leaning heavily on Dean, who wraps an arm around him. He doesn't know what the hell is going on, but Dean is still Dean. He knows the hunter kept things from him for his own good.
Cas sits down on the bed as Dean takes a seat in the chair next to it. Cas grabs a bottle of painkillers from his bag to help with the pain in his throat, which he's sure is heavily bruised. He takes a few more than the recommended dose and of course, Dean opens his mouth.
"I said be quiet," Cas reminds him, though his tone is more defeated than harsh. He takes a few sips of orange juice and manages about a quarter of PB&J sandwich before his stomach starts churning. Cas gives up and puts the tray on the floor. He lies down on the queen-sized bed, leaving a big space next to him.
Dean looks at him questioningly before Cas rolls his eyes and pats the mattress. Dean slides off his shoes and climbs in. He seems to be considering any unspoken boundaries Cas may have put up. There are quite a few inches of space between them.
With a slight groan, Cas reaches for Dean's arm and rolls them into a spooning position, Dean cradling Cas. It's how they fell asleep and woke up back in 2014 in Cas' cabin and it gives him great comfort now.
Dean nuzzles into the back of Cas' neck. "You really do need a shower."
"Screw you," Cas mumbles, very little venom in his tone. As heavenly as a long, hot shower sounds right now, especially if it involved Dean, Cas just got strangled by the Devil and beat the shit out of God. Cas needs sleep.
He gets it within seconds.