Title: the only choice
Disclaimer: not my characters
Warnings: spoilers for aired season 5
Pairings: gennish
Rating: PG
Wordcount: 160
Point of view: third
Prompt: Dean/Cass, Why would you want to fall?
Dean, Castiel knows, truly does not understand. The man thought he deserved Hell, and will never believe that anyone would want to save him.
Dean honestly believed that he should stay with Alistair in Perdition, that he had earned nothing more than an eternity of torment and suffering and damnation.
Castiel did his duty in carrying Dean back to Earth, in pouring his ravaged soul into his equally ravaged flesh, in healing him with Heavenly grace. Castiel did his duty in guiding Dean, in aiding him, in protecting him from Alistair.
Castiel did not do his duty when he showed Dean a way around Chuck's prophecy, or in sending Dean to Lilith's corpse and Sam. Castiel did not do his duty when he fought Raphael, too late in giving Dean a chance to stop Sam from breaking the final Seal.
Dean asks, when Castiel sides with him against Heaven and Hell and hunters, why he would.
Castiel shares a glance with Sam and simply smiles. Dean will never understand why anyone would choose him, not really, but at least Castiel is not alone in the choice.