Dean laughed out loud. "That's freaking hilarious." He plucked the locket out of Sam's hand and opened it, looking at the photograph inside. "Looks like love to me, dude."
Sam pulled his jacket on, face expressionless. "Real funny, Dean."
Not noticing his brother's lack of appreciation for his wit, Dean chortled, "Man, next thing you know she'll have a lock of your hair in here!"
"Dean, just - " Hand shaking, Sam reached out and snatched the locket back. He gazed at it for a long, silent moment, then stuffed it into his pocket and started for the door.
"Sammy?"