Disclaimer: The song referenced belongs to Chrissie Hynde, Tom Kelly and Billy Steinberg. And The Pretenders. I get not benefit.
Swallowing slightly, Sam hesitated, taking a swig of his beer before pushing play. He was a little apprehensive about this song. To him, it represented the love and safety that being with Dean always gave him. Knowing that his big brother always had his back, and that Sam would always have his was a cornerstone of their relationship. But Sam knew that Dean would find this song girly. The rich voice of Chrissie Hynde swelled out of the speaker as "I'll Stand by You" began.
Sam sneaked a look at Dean, but his brother was silently sipping his beer as the lyrics filled the library.
Oh, why you look so sad, the tears are in your eyes,
Come on and come to me now, and don't be ashamed to cry,
Let me see you through, 'cause I've seen the dark side too.
When the night falls on you, you don't know what to do,
Nothing you confess could make me love you less,
I'll stand by you,
I'll stand by you, won't let nobody hurt you,
I'll stand by you
That line "Nothing you confess, could make me love you less" had comforted Sam through many a dark hour when he thought about all the bad he had done in his life and all the guilt he felt about the times he screwed up and, more importantly, let Dean down. The idea that his brother could still love him no matter what had kept Sam going - sometimes when nothing else really could. Sam darted a look at Dean only to see his brother looking right at him.
"Good song." was all Dean said out loud, but his eyes said a lot more. He could see why this song was in Sam's top five. The next verse was ultimately some version of everything Sam had said to him when he was dealing with the Mark of Cain.
So if you're mad, get mad, don't hold it all inside,
Come on and talk to me now.
Hey there, what you got to hide?
I get angry too, well, I'm alive like you.
When you're standing at the crossroads,
And don't know which path to choose,
Let me come along, 'cause even if you're wrong
I'll stand by you
Everything Sam had done to save him rushed into his head. Even when Dean had lost all of his humanity and tried to kill his baby brother, Sam had refused to let him go, had done everything in his power to save him, even when Dean had become a monster. Dean took another sip of his beer and cleared the thickness that had developed in his throat.
The music faded to a close and Dean pushed himself to his feet. "D'ya want another beer?" he asked his brother as he strode towards the kitchen, not waiting for a reply. He needed a second and a trip to the fridge gave him a chance to get his emotions in check again.