Demon! Dean x Reader

Chapter 3 - Possession

Castiel POV
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'What is taking her so long...' I thought, it was 5 PM.. She's been in her room all day.
"I'm going to go see what she's doing. I'm worried." I turn to Sam before walking down the hallway towards her room.
I open the door to see her standing in the corner. There's blood all over the floor, on the walls, everywhere..
Her hand was dripping blood.
She turned to face me.

"Hello, Castiel."

"Y/N... What's wrong with you?"

Her eyes turned black, and she smiled.

'Dean."

"Dean, get out of her. Right now."

"Aw, come on, Cas... Y/N didn't put up much of a fight."

"Of course she didn't. She was defenseless!"

She began to laugh, not just any laugh... A demonic laugh.. It sent shivers down my spine.

"She was scared. She was off guard. It was a perfect chance."

"It's still not a good thing, Dean!"

"And did she ever tell you.."

Castiel looked into her eyes, she was right in front of him.

"She loves you. Not as a friend, more than a friend. But she loves me too, and she can't seem to choose..."

She reached behind her and took hold of a knife.. A demon blade.
She aimed it strait at Castiel.

"You know that won't kill me, Dean"

"Oh I know it won't, but I do know who it will kill."

She turned the blade around and stabbed it into her gut. Almost immediately the black orbs turned back to her normal E/C eyes.

They showed pain as blood poured from her, she looked up at Castiel before speaking in a painful, strained tone.

"Cas..."

She collapsed.