"We love each other, Bobby," he says softly. "It's always been me and Dean against the world. We've been everything to each other for our whole lives. It just...grew into more."

It's the best explanation that Sam can come up with, and it's true. Moving onto this kind of relationship felt completely natural with how close they'd always been.

He doesn't answer the second question. He doesn't expect anything. He and Dean will take whatever the man gives them.