"Sam, knock it off," Dean murmured against his brother’s lips, moving a hand to grip the other’s wrist, pulling his hand out from under his shirt. He received a little huff against his mouth in reply, followed by a deeper kiss and a pressing of their chests together.
Dean knew this couldn’t go on for much longer. Their make-out sessions had become a little too hot and heavy for him and worked against his self-control. He had told himself that Sam was much too young to get into anything other than heavy petting, and hell if it didn’t frustrate him as much as it did his little brother.
He closed his eyes again once Sam’s hands seemed to be content outside of Dean’s shirt and he let their tongues come together while delighting in the softness of his brother’s lips. He could feel those slender fingers moving from his side, over his chest, down his abdomen, making a b-line for his crotch.
"Sam," Dean interrupted, tipping his head back enough to break the kiss.
"You’re hard," Sam murmured against his neck, happy to be straddling the other so he couldn’t exactly pull away.
"We can’t," he sighed, and Sam drew his tongue up the hollow of Dean’s throat, biting at his jawline while he palmed that warm, hard flesh beneathe the fabric of his sleeper pants, and Dean can’t help but to give a little moan.
"Just touch me," Sam whispered, tipping his head down a bit to watch as he shifted his hand up enough to slide it into the waistband of his brother’s pants, feeling his abdomen tense, but there was no quickness to stop him. "C’mon, Dean.. I want to make you feel good. I know you want to make me feel good too. Just.. touch me.."
Heat surged through Dean’s body the moment Sam’s fingers made contact with his cock, heart hammering like a flutter of wings in a cage, and it was too much.
"You’re too young," Dean attempted to justify, moving his hand up to settle on the side of his brother’s thigh, still not making an effort to stop Sam.
"We fight monsters on a regular basis, I hardly think sex is going to ruin my innocence," Sam replied with a hint of a smirk, locking eyes with his brother before he gently dragged his teeth over his bottom lip, eyes softening. "Don’t you want to fuck me?"
"Fuck, Sammy.. you know I do.. I just —"
"Then don’t be afraid to touch me. I want to make you feel good."