"Again?" Sam sighed into his pillow, and Dean smirked against his shoulder, where he was laying a leisurely trail of kisses. His cock was also rubbing against the side of Sam's hip, but that was neither here nor there.

"What's the matter, Sammy? Ain't got the stamina?" Dean teased, biting Sam's shoulder gently, and Sam snorted.

"I am four years younger than you, you know," Sam reminded him, "Stamina is not my issue. You're just an insatiable slut."

"Damn straight," Dean grinned, "So are you gonna fuck me, or not?"

Sam chuckled, rolling onto his side and pulling Dean against him. He sought Dean's mouth in the dark room, and Dean went into the kiss eagerly.

He hummed at Sam's hand trailed down his back and to his ass, squeezing firmly before pressing a finger between his cheeks. Dean hiked his leg over Sam's hip, giving him better access, and Sam chuckled softly.

"Slut," Sam sighed again, pressing his finger against Dean's still lube and cum-slick hole.

"You love it," Dean whispered back with a smile, and Sam laughed breathily.

"Lucky you," he said dryly, pushing a finger in and Dean gasped. He pressed forward against Sam's pelvis, rubbing his hard on against the sharp cut of muscle.

"I don't even have to do this, do I?" Sam murmured, his lips trailing down Dean's chin and to his throat, "I could fuck you right now and you'd beg me for more."

Dean moaned, his cock jerking against Sam's hot skin. Sam was getting hard now too, Dean could feel it against his hip and he reached a hand down to help Sam along.

Sam hummed encouragingly at Dean's touch, nipping at Dean's neck gently.

"On your belly," Sam instructed softly, and Dean eagerly shifted around until he was laying on his stomach, Sam sliding over him from behind. He humped against the sheets, the friction against the head of his cock sending sparks of pleasure up his spine.

He could hear Sam stroking himself as he pushed two fingers back into Dean, making Dean whimper and squirm against the pressure.

"So pretty, Dean," Sam murmured, leaning down to kiss his back, and Dean chortled.

"Don't be a sap, Sammy," he gasped as Sam pressed hard against his prostate, and a blurt of precome dampened the sheets below him.

Sam shook his head with a little chortle, continuing to kiss Dean's back and rubbing his fingers against Dean's sweet spot again, making Dean jerk.

"Fine, I won't compliment you, I'll just fuck you instead," Sam said, "How's that?"

"Get to it, baby," Dean smirked, and Sam chuckled, giving Dean's ass a little smack before he laid over him, rubbing his cock between Dean's cheek slowly.

"You're ridiculous," Sam mumbled against his shoulder, but any snappy retort Dean was ready to throw back at him was cut off by Sam guiding his cock inside him in one firm stroke.

Dean shuddered with pleasure, groaning as Sam started thrusting slow and deep. Dean reached one hand behind his head to slide his fingers into Sam's hair, and the other down to Sam's thigh, encouraging the steady push of his hips.

It was slow and sensual, and Dean shuddered and moaned as the push of Sam's cock against his sweet spot and the rub of Dean's cock against the sheets started a slow build of pleasure in him. He gave himself over to it, panting against the pillow and pushing back and forth between Sam's hips and the bed.

Sam kissed and bit along Dean's shoulders lightly, breathing warm and soft against Dean's skin. It was intimate in a way that he would never want to admit to loving, and a little moan of pleasure escaped Sam's lips.

Slow and steady as a heart beat, Dean's pleasure mounted and higher and higher until it broke over him like a wave and he came, holding tight to Sam as he shook and panted.

Sam grunted as his hips picked up speed, driving in fast and deep until he came as well, groaning into the back of Dean's neck.

They panted quietly together, Sam still draped along Dean's back and his mouth running aimlessly along his skin. Eventually he rolled to the side, pushing his hair out of his face as Dean wiggled out of the wet spot with a little grunt.

"Happy now?" Sam asked, and Dean could hear the smile in his voice.

"For now," he said cheekily, and Sam chortled.

"Ridiculous," Sam sighed, starting to doze off, and Dean grinning against the pillow.

"Night, Sammy."