Sam knows that the walls are thin, thin enough to hear right through them even with the water falling on his shoulders. Running his hand down his chest, he gave a small breathy groan as he flicked his thumb over his nipple. Sliding it down more, he wrapped his long fingers around his cock, giving it a few strokes. Turning around he leaned on the slightly cool tiles as he started moving his hand in a steady rhythm. Bitting his lip, he let out a low moan as his thumb ran along the ridge of the head. Letting out a slightly louder moan, he moved his other hand to his balls, rolling them lightly. Through the door he caught the tail end of a moan from the other room, making a shiver run through him.
It was a game they played, a twisted one that wouldn't have a winner and a loser. The game would end with them both winning or both losing. One of them would take a shower and if they had enough time, the one in the shower would start to play with themselves. It didn't take long for the other in the bedroom to join them, a door and a million reasons why it's wrong between them.
Neither mentioned it and when it first happened it was an accident. Sam just figured that it was to long on the road and Dean was such a whore that any kind of moans turned him on. But time after time of it happening proved him wrong. Then when it flipped, it just became more confusing.
Sam could feel himself getting close as he heard Deans moans getting louder. Moving his hand faster, his hips pumping, more moans slipping through his lips.
"Fuck, Dean" He moaned out, coming over his stomach.
From the other room, he heard Dean come with a loud moan. Washing the come off himself, he let out a slow breath. He just upped the anty and now it was Deans move.