"Ahh!" Dean cried, wincing as last night's bruise hit the wall. "Calm down, Sam, you're gonna hurt me." Sam looked up from where he was kneeling in front of Dean and grinned devilishly.
"I'll be more gentle when we're done, big brother." And Dean had to admit, that was hot. He wound his hands further into Sam's hair, tugging slightly every time Sam pressed his lips to that one spot on Dean's hip. Sam mouthed at him through his boxer briefs and he sighed, letting his head fall back against the wall.
"You like that, huh?" Sam moaned, pulling his cock from beneath the cloth and running his lips down the shaft. Dean was panting, his legs shaking with the effort to keep standing as Sam did everything right. Sam lifted one arm and let his hand trail down Dean's stomach while he drew him into his mouth, suckling on the head.
"Ah, Sammy...feels so fucking good..." he groaned, biting his lip as he fought to control his desire to fuck his little brother's face. It was hard, especially seeing as Sam was being a little tease, as always. "Fuck," he moaned again, looking down to see Sam looking up at him, stroking what his mouth wouldn't reach, humming around his cock.
"God, Sammy, don't stop.." he sighed, closing his eyes to concentrate on that feeling, that warm, wet feeling, all closeness and vibration. All at once, Sam took every inch of him into his mouth and throat, making Dean cry out.
He moaned around Dean's cock, and started bobbing, keeping his cheeks hollowed. Dean's fingers pressing against the back of Sam's head was the only warning he got. Then Dean came in his mouth, and Sam let it run down his throat, making sure to get every last drop.
"Mmm, taste so good, Dean.." he moaned, wiping his lips and climbing to his feet. He kissed Dean once and smiled, reveling in the image before him. Dean, slumped against the wall, panting and covered in sweat. His masterpiece.
"Come to bed now, we have work to do tomorrow," Sam said, turning to pull down the covers from the bed nearest him. Dean grimaced, buttoning his pants as he came around to crawl into the motel bed, kicking off his shoes.
"Don't remind me," he mumbled, rubbing his head on the pillow. Sam smiled, climbing into the opposite side, reaching under the covers to take Dean's hand. Right before he turned off the light, Sam swore he saw Dean smile.