Five Months Earlier
For Dean, the moment was surreal. It was impossible. No. Sam hadn't been smart enough to use real bullets last time, why would he this time? Well, because he wasn't Sam. He was… Dean didn't know who he was, and really wasn't in any mood to find out.
He stumbled backwards on the dock, looking up at Sammy's cold, merciless eyes before plunging back into the lake, feeling like a doomed Smallvillian boyfriend that had just been caught off-guard by one of the Luthers. It was going to be one of the last things he would ever really feel.
That, and hurt. That, and betrayal. That, and an overpowering need to save his little brother, no matter the cost.
He wasn't about to leave Sammy alone. No now. Not ever.