Dean woke to the sound of bacon sizzling.

"Morning, Cas." Dean grunted and stretched as he got up. He saw that Castiel's eyes were dark. He obviously hadn't had a good sleep, either. "How long have you been up?"

"Since yesterday morning." He cracked an egg on the stove. "Your bedroom gets very cold at night, Dean."

Dean chuckled, and, crossing into the kitchen, told Castiel, "You're supposed to sleep under the covers."

Castiel threw the eggshell into the bin rather forcefully. "Dean, I'm not a child. I know." Dean was about to apologize when the front door flew open and then slammed shut again. Sam walked into the kitchen.

"About time you got up, Dean."

"Sam." Dean looked at him, feeling like it had been years. "I thought it must have been a dream or something." He was about to cross the room to hug his brother when Sam smiled that cheesy puppy-dog smile of his and pretty much ruined the moment.

"Breakfast is ready, Dean. Sam, your peanut butter and banana toast is on the table."

Dean watched Sam take the toast and begin to eat it, chomping noisily as he thundered up the stairs. "Er'm gernna shhwa." He disappeared over the landing.

"Sam was out running, Dean. It's good for him. Eat." Castiel was holding two glasses of milk, waiting for Dean to sit down.

Dean ate a few bites, chewing slowly and thoughtfully. Once Castiel had finished and was waiting for Dean to finish politely, Dean looked at him in the eye, resting his chin on his hand, and asked, "Cas, what do you want?"

"I'm not sure I understand."

"It's a simple question."

"No, Dean, it isn't. I don't know what you want me to say."

"It's not about me, Cas, I'm asking you. Now that you're human, you can pretty much do what you want with your life. You don't have you stay here. You don't have to join the life. You can do what you want, Cas."

"Dean, there is no simple answer to that question. At least, none that I can think of. " Castiel put the bacon and eggs on two plates and set them on the table. As an afterthought, he set butter on the table and put bread in the toaster. Not turning around to look at him, Castiel spoke in a low voice. "Sit, Dean. Breakfast is ready. I will bring the toast when it's done."

Dean sat and stared at his plate. He picked at a bit of egg. Castiel brought the toast ans sat across from Dean, eating the bacon wordlessly.

Dean dropped his fork on the plate and shoved it away.

"Cas, dammit, I know what I want. Now you need to shut up about me and figure out what you want. If you wanna leave, fine. Be my guest. But don't you dare turn this around on me. I've had enough of that." Dean's voice began to escalate. "When you find out what you want, you go do it and don't look back." Dean's voice cracked at the last few words and he left the room with his food.

Castiel rested his chin on his clasped hands and thought for a good long while.

What do I want?

I want my brothers back.

I want to see them alive again.

I want them to know how sorry I am. For everything.

I want Dean and Sam to have their family again. Including Bobby.

I want to see Dean enjoy himself for once.

I want family.

I want to see Dean smile because he's happy for himself, not for someone else.

He's given so much.

I want him to be happy.

Nothing else could be possible, I'm only human now.

But I could make Dean happy.

Castiel got up to clean the mess in the kitchen, but not before he caught a glimpse of Dean eating in fron of the television. He frowned, trying to find an answer to the one mystery left for him to solve.

What does he want? How can I make him happy by giving him what he wants?