Archive of Our Own ^beta

"Please, Daddy," Sam whimpered, staring up at Dean all wide-eyed and desperate.

Dean clenched his jaw as he struggled to maintain his composure. Every time John left to go hunting it was the same, had been that way for almost a year now. When John was around Sam's moods swung from distant and withdrawn to bitter and confrontational, and Dean noticed that he would never look at John directly in the eye. But as soon as the door closed behind John Sam would break down, fall to his knees in front of Dean, and beg.

At first it was only comfort and validation Sam craved. Dean knew Sam was hurting and he couldn't bear to deny him the solace he so desperately needed. Sam would cling to him as he trembled and sobbed and Dean would wipe away his tears and hold him tight, and Sam would eventually fall asleep in his arms.

But recently Sam had been needing more than just a loving embrace. Dean knew it was wrong but the more Sam begged for it, the more Dean's resolve crumbled. He would lie awake at night watching Sam sleeping in the bed next to his, his hand wrapped tight around his aching cock, imagining his baby brother's sweet mouth swallowing him down.

"Please, Daddy," Sam repeated, tears now beginning to well up in his eyes, "Please let me show you how much I love you."

How could Dean possibly refuse? He loved Sam dearly and he treasured the secret, fierce connection they had kindled. He had always been more of a father to Sam than John ever had and he knew how much Sam needed this.

Dean reached out a shaking hand and gently touched Sam's face. Sam's eyes drifted closed as he melted into the caress, his tears rolling down his cheeks. Dean brushed away the tears with his thumb, his heart bleeding for his little brother, "Okay, Sammy," he murmured as he stroked his thumb softly across Sam's lip, "I'll give you what you need."

Sam trembled a sigh of relief, months of pent-up tension lifting with those words. After a moment he looked up at Dean again and parted his lips, inviting Dean to dip his thumb into his mouth. Dean felt Sam flick his tongue against the tip of his thumb before he closed his lips around it and began to suck gently, all the while looking up at Dean for approval.

The soft wet heat of his brother's mouth made Dean keenly aware of his rock-hard erection. Not able to take his eyes off Sam's even for a moment, Dean unbuckled his belt and began to open his jeans, his usually deft hands fumbling. Sam dived forward impulsively then and nuzzled his face against Dean's crotch, purring as he breathed in his scent.

Dean's erection was still agonizingly trapped within the confines of his jeans and it throbbed at the contact. Overwhelmed with need to have Sam's mouth on him, Dean scrambled to get out of his jeans and he pushed Sam away harder than he had intended to.

Seeing the distress and confusion that flooded across Sam's face, Dean caught himself and cooed, "I'm so sorry, baby boy," and he leaned down to place a soft kiss on his forehead. Seeing how it soothed Sam, Dean smiled sweetly down at him. Taking a breath to steady himself, he slipped his jeans down.

Sam's cheeks flushed pink at the sight of Dean's cock just inches away from his face, swollen and thick, with a glistening bead of pre-come rolling down the head. He looked up at Dean eagerly, this time waiting for permission.

Dean's heart skipped a beat as he realised what Sam was waiting for. "Yes, baby boy, Daddy needs you to suck his cock," he said breathlessly to please Sam, unexpectedly making himself even harder. "Now," he added impulsively, practically growling.

Sam shivered with pleasure at Dean's command. He grasped his trembling hands around Dean's thighs, leaned in close and licked tentatively around the head of Dean's cock to taste his pre-come before taking his entire length into his mouth.

Dean cried out as his baby brother's mouth surrounded him. Months of fevered imagining and longing didn't even come close to the ecstasy Dean felt in that moment. The whole world slipped away, leaving only his beautiful little Sammy devotedly lavishing all of his attention on his cock. All he could hear over the blood rushing in his ears were the deliciously lewd wet sounds of Sam's mouth as he sucked and teased the head and eagerly licked along the engorged veins running down the length of his shaft, and back up to swallow him whole again, and the little whimpers and moans coming from Sam's throat that sent thrills of vibration through his cock.

Dean's head began to spin, each stroke of Sam's gorgeous mouth working him into a fervour until his hips jerked forward suddenly and the head of his cock hit the back of Sam's throat. Sam choked hard but he didn't pull back, instead he gripped tighter onto Dean, holding him in place as he gagged again.

"Fuck, Sammy!" Dean grasped a handful of Sam's hair, thrusting into the back of Sam's throat once more as his orgasm crashed through him, and he came hard into his little brother's mouth.

Sam choked again but took all of Dean's come, swallowing around Dean's throbbing cock, only pulling back after he felt the last pulse of Dean's orgasm against his tongue. Dean moaned aloud at the sight of the ribbons of spit and come trailing between the head of his cock and Sam's rosy lips, and his legs threatened to give out under him. He knelt in front of Sam and pulled him into a hungry kiss.

Their lips came together with urgent need and Dean tasted his brother's mouth for the first time. Sam tasted like candy and tears and come and he wondered why it had taken him so long to concede to Sam's yearning.

Dean sucked on Sam's lip, eliciting a little mewl from him that sparked a sudden primal thrill within Dean. His fingers still entwined in Sam's hair, Dean jerked Sam's head back roughly to expose the arc of his neck and bit down hard on his throat, claiming him. Dean felt Sam's body tense at the sudden shock of pain and heard a deliciously soft gasp against his ear.

Dean pulled back to admire his work. Sam's otherwise flawless skin was now signed with a perfect bite mark, each little impression ringed with raised red welts. Dean leaned in again to place tender kisses there to soothe the sting and realised Sam's body was trembling. He looked down and saw that Sam now had his hand inside his own jeans, eagerly stroking his obvious erection. Dean lovingly wrapped his arms around his little brother and breathed into his ear, "Come for me, baby boy."