The air in the bedroom is chilly as Sam pulls his jeans up, trying to keep as quiet as he can. His belt makes a slight noise as the two parts of the buckle clink together and he holds his breath that the occupant of the bed he vacated doesn't wake. A small shuffle and then the figure is still again. His shirt makes a small hushing noise as he pulls it over his body that is covered in dried sweat. Still the figure doesn't wake.
The cool metal of the keys feel heavy in his hand as he moves into the hall and down the stairs. Some of them creak, but he's been here enough times that he knows where and how each makes it soft melody. As he leaves the house through the back door all the greets him is crickets and the blink of lightning bugs.
His car is parked almost a five minute walk away, under a weeping willow tree. Out of the way, out of anyone's care. Since all the neighbors know it and keep a look out for it. Dean's wife never did get over that he was sleeping with someone else, let alone when she found out it was Sam. They didn't last and Dean got the house and she told all their neighbors. They don't turn him in as long as Sam never comes around. And as much as Sam wants him to move, Dean loves the house and everything.
Sam feels that means he loves it more than him. He'll never really know what happens in the mornings, when Dean wakes to an empty bed. That's why Sam can't stay till the sun comes up and covers them in it's rays. He wants to, but it would ruin the trust that Dean's worked up with everyone.
That's also why it's always at night, where Dean can still feel the pleasure but doesn't have to feel the guilt. Darkness shrouds all of that. He can feel the pulse around him, the kisses, the sweat slicked skin, but never have to remember its his own flesh.
Getting into his car, he pulls from the curb and heads back to his own little apartment where he'll be the broken brother. Waiting for the phone call that could fix him. The one that Dean tells him their going to move far away and be together.
The one.
That never comes.