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Castiel doesn't sleep, and because he doesn't sleep, there's little he can do to entertain himself during the nights when all humans in the bunker are sleeping. He's read all books and archives in the bunker at this point, he's translated to English all he could find and while he could go to Sam's room to watch tv. He doesn't feel like watching tv.
Instead, he goes back to an old habit.
Watching people sleep. It's entertaining to watch their souls and listen to the hums in these ones, to know they were safe.
But it's not long before Dean berates him for it, telling him to stop staring at people when sleeping. That it was creepy.
So Castiel ends up doing something else to pass the time, something that won't technically go against Dean's request.
And Dean is the first person he chooses.
He sneaks into his bed at night when the oldest Winchester is sleeping.
~
Dean woke up to the feeling of something next to him, which weird. He remembers going to bed alone.
It's not until he's a bit more awake that he realizes that the thing next to him isn't human. He could feel it. Its very power could be felt through the air, making his hairs stand on end. How the hell did it get in the bunker?
No time to think, he kept his eyes closed, not changing his breathing for a second, not wanting to give himself away that he was awake. He snatched his knife from under the pillow and as quick as lightning he whipped around, stabbing the bastard on the chest.
Unbothered blue met green.
"Hello Dean." The casual greeting came. As if Dean hadn't just put a knife through his heart. Dean managed to pull himself out of the initial shock, reminding himself that a knife wouldn't, in fact, bother Cas at all.
Hell, Dean had stabbed him just like this when they first met.
"Hello Dean my ass, what the hell are you doing in my bed?" He asks at last, pulling his hand back and not quite daring to remove the knife himself even though he knows Cas is fine.
"You told me to not stare. So I laid down." Castiel told as a statement of fact, as if that explained everything. He brought his hand up to grasp the knife, removing it himself before handing it back to Dean.
Dean took it, staring at the bloodied knife for a moment before glancing at Cas' chest, but as expected, there wasn't a single speck of blood or even a tear on the shirt. As if nothing ever happened.
"Cas?"
"Yes Dean?"
"Don't make me use a banishing sigil."
~
The next victim was Sam.
He had heard about Dean's weird encounter with Cas. He thought Cas was being… well… Cas . You never knew what to expect from him.
Then he woke up to the angel next to him in bed.
No.
Not next to him.
Sam had apparently grabbed him in his sleep and was currently holding him close. The angel's hair tickling his chin. He smelt like old books and wood.
It didn't feel like hugging a statue as Sam had expected. Cas was relaxed in the odd hug and as Sam stole a glance at his face, he was surprised to find the angel's eyes closed. He doubted Castiel was sleeping.
Yet, Sam found himself not feeling like releasing the angel, he was quite comfortable and he's always enjoyed hugs. Plus, Cas didn't seem bothered, so Sam just brought him closer and decided to try And go back to sleep.
And if Castiel was awake, he didn't say anything.
In fact, Sam could swear Cas all but melted in the embrace, reminding him all too well of the angel's habit to hug people. And that Sam had turned down his hugs several times.
Well, there's no time like the present to change that.
~
The third victim was Kevin Tran.
With nightmares of demons and paranoia he almost jumped out of his skin when he felt a presence all but materialize next to him.
Castiel laid right infront of him.
Staring at him with those eyes that always made him feel like the angel could see his very soul. Which he probably could.
"You should rest, even as a prophet reading the tablet day and night will end up hurting you."
Kevin stared at him for a full minute before deciding to do as told.
He had to admit that that was the best sleep he's gotten since this whole thing began.
~
The fourth victim was Charlie Bradbury.
When she first moved into the bunker per request of Dean, she had been warned about Cas and his habit to sneak into people's beds at random intervals. Dean had told her that she could kick him out if she wanted while Sam and Kevin hadn't made comments on the matter.
Charlie had thought that she would be spared of the odd thing, but nope.
Apparently, Castiel could care less about who it was or if he knew them well enough or not.
Charlie was watching a movie when the bed dipped behind her, as she craned her neck, looking over her shoulder, she smirked in amusement.
As foretold, there laid the angel.
Charlie was a woman who did as she pleased.
Thus, without hesitation, she crawled over to him and laid her head on his shoulder, placing the laptop on his stomach and going back to watching the movie, making comments here and there about the characters while Cas answered back too.
Charlie got the impression that Cas did this more out of not wanting to be alone rather than keeping an eye on them.