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Dean was feverish. He had gotten bit by a succubus on the last hunt and he was delirious with the fever. Sam was taking care of him as best he could. It was hard to see his brother like this though.
Sam sighed and wiped a wet cool towel over his brother’s forehead. The motel was quiet and dark around him, the only sound the moaning and whimpering coming from Dean’s sleeping body. He must be having bad dreams. He laid the towel down and grabbed a beer from the fridge. When he came back to his spot next to the bed he was surprised to see that Dean’s eyes were open, if extremely glassy.
“Daddy it hurts,” his big brother whined like a little boy.
Sam paused. He looked behind him and around the room. It was still just the two of them. Dean must think he’s John. The mantle fits uncomfortably around Sam’s head.
“What hurts Dean?” He asked. He needed to know.
“Everything. I’m so hot.” Dean sat up in bed and started pulling ineffectively at his shirt, listing to the side. Sam pulled his shirt off for him and pushed him back down onto the bed, wincing at the site of the bite that had gotten them into this mess. It was red against his brother’s pale skin. Dean’s unfocused eyes landed on Sam again.
“Daddy it’s still hot,” he whined. Struggling to get out from under the blanket. Sam relented and pulled the blanket down, exposing his brothers denim clad legs and tented pants.
Sam had been worried about this. That the succubus bite would affect Dean sexually. Dean would have to get off soon or else this fever would melt his brain. But Dean was out of his mind. Sam grimaced.
“Dean, can you take your pants off and masturbate?” He asked hopefully.
Dean kind of looked at him with his blown out eyes and then flopped onto his stomach. It seemed like he’d have to keep watch and make sure that Dean masturbated to completion. Or else there was no telling if he would actually pass the venom, with it messing with his head like this. The things he’d do for family.
Sam grabbed his brother’s hips and flipped him back onto his stomach. Dean didn’t resist. Sam pulled his pants down and then his boxers. There was his brother's dick in front of him, erect and proud, a little smaller than he would’ve expected. Sam grabbed Dean’s hand and carefully placed it over his erection. Now all he had to do was wait.
Dean shakily stroked himself. Then he rolled back over onto his stomach and canted his hips up.
“Daddy be quick,” he mumbled. “I don’t feel too good.”
Blood roared in Sam’s head. Dean didn’t know what he was doing that’s for sure because it kind of looked like he was expecting to get fucked by daddy. And that couldn’t be right. Dean didn’t know what he was doing.
Angrily, Sam stalked over to the bed and rolled Dean over once again. He put Dean's hand back over his groin and groaned with frustration when his brother immediately allowed his hand to fall lax onto his thigh.
Dean looked at him with unfocused eyes. Then he spread his legs as far as they could go.
Sam had had it. His brother was going to die from a succubus bite.
“Daddy please. I want it.” Dean whined on the bed.
Sam took a long swig from his beer bottle. He wondered if sexuality changes were a side effect of succubus bites. He looked at the winking asshole his brother was showing him and felt himself harden a little in his pants. He’d always liked anal sex. And his brother had a pretty little asshole, pink and pursed just like his sweet little lips.
He was thinking crazy.
“Daddy, daddy, daddy,” Dean moaned, writhing on his back. “Come fuck me please. Only you.”
Sam stalked over to the bed.
“Who am I?” He asked the writhing man.
“Daddy. My daddy. He fucks me so good.” Dean whined.
That confirmed it. Dean didn’t know who he was.
He could take what he wanted without consequences.
He grabbed the lube out of his own duffle. The way he saw it he could jack his brother off or get something out of the experience. Maybe it was morally dubious but he wanted to come. He settled beside Dean on the bed and lubed up his fingers. Then he started to finger his brother’s asshole.
“Your boypussy is tight,” he grunted out, amazed by the heat and pressure around his fingers.
Dean moaned and thrashed on the bed.
“Only you daddy, it’s all yours I promise. No one else.”
Sam wondered briefly what was the truth. If Dean had been with a man before. If so, who? He added a third finger to the mix and watched with glee as his brother writhed underneath him.
“Daddy, please I can take it,” Dean moaned. “I’m ready now.”
Sam added a fourth finger. “Your cunt needs to be loose for me baby. Just hold on a minute.”
Sam pulled out and gripped Dean’s hips, pulling him into the proper position. Then he thrust forward, groaning with pleasure at the tightness as he inches forward into Dean. Soon he was bottomed out in total bliss. It was so good and taboo. He never thought he’d be into being called Daddy either but Dean’s pitiful moans were quite sexy.
He pulled nearly all the way out and then thrust back in. Dean cried out beneath him.
“Oh yeah daddy that’s so good. Fuck me hard, please,” he gasped.
Sam pistoned his hips like a jackhammer. Normally with a woman he’d want to hold back but with dear delirious Dean he went hard, thrusting in and out without care. From the sound of it, Dean didn’t mind, he was keening and moaning and screaming. On every particularly rough thrust, the man would moan “Daddy,” and “Uhhhh,” in these breathy fucked out gasps. Sam was getting really into it and moving like a machine, fast as he could manage, forcing those sounds out of Dean while he himself grunted with exertion. He wanted to see if he could get Dean off without touching him.
“Daddy please touch me,” Dean whined.
“Come on my cock or don’t come at all,” Sam growled, thrusting for all he was worth.
Dean cried out and weakly pushed himself back against Sam. His eyes crossed in pleasure and he moaned as Sam continued to thrust roughly.
“Only yours Daddy, thank you for fucking me,” Dean panted out between thrusts.
“I’m going to paint your pussy white,” Sam said, grinding his large dick against the walls of his brother.
Dean stuttered out and fell to the sheet, jerking his release against the sheets underneath him, his ass still raised and impaled on Sam’s dick.
Sam sighed in relief. Dean would be okay from the succubus and he wouldn’t have to masturbate his older brother. He picked up his pace, intent on coming so deep inside his brother that no cum would come out. They may have been loud but it was a sneaky fuck.
Dean sighed against the bed, waiting for ‘Daddy’ to finish. Sam plowed into him and then finished with a stuttering thrust, balls deep in the older man.
Sam pulled out and tucked himself back in his pants. Dean fell on his face in the wet spot underneath him. In seconds he was snoring.
Sam went to the bathroom for a warm washcloth and cleaned his brother as best he could, pulling his pants up and rolling him out of the wet spot, earlier disgust muddled by the orgasm. When he was sure that his tracks were covered he went and took a shower.
As he was turning into bed himself, nighttime routines completed, Dean mumbled something.
“What was that?” Sam asked with trepidation.
Dean murmured back, “Said, love you Daddy.”