You're Not in Kansas Anymore, Dean Winchester (слэш)

(Canon up to Season 6 - alternate timeline to date.) Chuck has handed over the mantel of God to Dean Winchester. He has the power, the angels, he's not quite ready for the throne yet, thanks... and he's got Cas. He isn't doing too bad at the job, but it's getting a little overwhelming. He's having memories of people that he doesn't remember ever meeting. He's beginning to lose himself to the power that he wields. He might even be accidentally causing his loved ones to drift away from him. It sucks.
Castiel thinks that he's losing Dean. He starts to doubt his place at his side. So perhaps he does something very foolish... but certainly he can trust the Scribe ... the Word of God?