[Sam wasn't expressing any regrets. That was a weight off Dean's shoulders. Sam was the one at the most risk, as Dean saw it. If his brother was okay, everything else would be fine.]

I'm good. [A little sore, sure, but nothing he couldn't handle. Everything else felt too good to worry about a little thing like that. He nudged Sam gently toward the shower.] C'mon. Let's get in before we lose the hot water.