Drabble. Takes place during 8x14.
Sam looked around the room, noting the weapons on the walls, the records, the big bed, the obsessive cleanliness. It was all so inherently Dean that it made him want to laugh and tease his big brother, but then something else caught his attention.
Perched next to the typewriter was a picture of Dean and their Mom. A picture he'd never seen leave Dean's wallet.
Sam blinked and looked around the room once again, this time setting his amusement aside. It was just one small detail, but everything changed in the light of that tiny photograph.
Sam felt his chest constrict as he finally got it. Like Dean had said, he hadn't had his own room ever. The weight of that sat on his chest and he swallowed forcefully. In his mind's eye, the weapons became toy guns and swords, the records became board games and marbles. His awareness of Dean shifted for just a second to the little boy in the photograph.
This wasn't just another place to Dean. It was his. And he'd finally taken that picture of mom out of his wallet because he knew-
He'd be coming home here every night.