"You went out for food, how'd you take a swim?"
"M-M-M-More l-l-like h-h-h-header off b-b-bridge."
Sam's stomach clenched at the words.
"P-P-Pushed. L-Lost m'coat. B-B-Boots. K-Keys." Dean's shuddering picked up speed. "C-C-Cold, S'mmy." His eyelids began to droop.
"Let's get you into some dry clothes. Then you can sleep."
Sam helped him strip and redress in sweatpants and long-sleeved flannel. By the time he buttoned the last button, Dean was out. He pulled heavy socks onto Dean's feet. Pushing Dean over a bit, Sam piled blankets on top of him.
Sighing, he ghosted a hand over his brother's forehead.