"Cas. Are you God?" Dean asked a bit awestruck because Cas was here and if he was God then it maybe meant that Sam...that they weren't lost. But Castiel's kind smile twisted into something Dean had never seen before. It wasn't cruelty but it danced on the edge of it. Cas laid his hand against Dean's cheek, still oh so very gentle.
"Unfortunately for you, Dean, I'm the exact opposite of God." Realisation dawned on Dean's face:
"But we...Lucifer is in hell."
Castiel laughed coldly:
"Oh yes, Lucifer. God's little family drama. Oh so very distracting for everyone, even Michael and he really should have known better." Castiel tilted his head like he had done so often before:
"But love makes you blind, doesn't it Dean? Michael's love for Lucifer, yours for Sam and, well" He snickered: "me." Cas tapped his finger against Dean's lips:
"I have to say though, you were very entertaining. Your drive, your desperation. Your naiveté."
"Whatever you are I'm going to kill you for what you did to Cas." Dean said fiercely and stood up but Castiel held him easily in place:
"You can't kill me Dean." He sounded bored: "I'm just as old as God and Death." Castiel threw Dean to the ground again:
"But thanks to you the only people who could have bothered me in my conquest are either dead or in hell, so I won't my brother let have you today. And hey, you corrupted an angel into falling and dying for you just in the moment your brother opened Hell and I needed I way into the game to send you all on wild goose chase against Lucifer who really just tried to help you. Do you see the irony?" Castiel leaned down, grabbed Dean's face with both hands and pressed a hard kiss to his lips:
"See it as a goodbye gift from Castiel. He really loved you, you know. But contrary to what you humans and angels and demons believe love isn't a good feeling. It makes you insane, it makes you evil, oh and it usually makes you mine."
"I will fight you." Dean promised him, his voice full of anguish and hatred: "I will kill you."
"Good luck with that." Castiel smirked - and vanished.