"No, Sam." Dean Winchester glared at his brother across the motel room. "We are not discussing this now. In fact," - the hunter stood up to tower over his brother - "we're not discussing it ever."
The younger Winchester sighed and looked back down at the work he was reading. "But, Dean. I need to know." He looked his furious brother right in the eyes. "He said if you can't save me, then you'll have to kill me. I need to know. When I die..." he hesitated.
"Don't say it, Sammy," Dean whispered suddenly, his eyes wet with tears that refused to spill over. The boy looked up at him, a single tear track down his face.
"I'm sorry," he replied quietly, "I have to." He took a deep breath. "When I die, I need you to be the one who is there. I need you, Dean."
There was a silence in which both Winchesters watched each other. Dean broke away.
"No, Sam. No!" He turned back to his brother and glared at him, tears almost spilling over.
"I'm not going to be the one to watch you die," Dean swore, and turned away again, letting the tears fall. Tears for the future.
As Dean holds Sam in his arms in mud, cradling the lifeless body close, the same tears fall.
"I'm sorry, Sammy. I'm so sorry," he whispers as he presses his already blood soaked hand to his brother's fatal wound again. More blood coats his palm and he knows there's nothing left.
He looks straight forward for a minute as more tears collect in his eyes, spilling over, lining his face the same way Sam's lined his that day.
Dean remembers his words well. I'm not going to be the one to watch you die.
"Saaaam!"
He can't help the scream that escapes him as he shakes his brother one last time. But he already knows everything's lost.
Dean's face crumples as he buries it in Sam's hair, fresh tears falling.
I'm Not Going To Be The One To Watch You Die.