NSFW | CW: omorashi/fear wetting, sibling incest, dubcon
~
Sirius paced the floor, feeling seriously irked. Regulus was only supposed to be staying for a couple days, a week at most. Today marked three months and Sirius was freaking out.
He thought if he kept his distance from his little brother, things would be easier. Surely his stupid inappropriate crush was just a result of teenage hormones and a shitty home life, nothing more. Leaving for university was supposed to fix that. He was supposed to find some girl to fall madly in love with—or at least fuck enough times to forget just how into guys he was. Then when that didn’t pan out he decided, fuck it, so I’m into guys, is that really such a big deal? I can be into guys, I can be into any guy, just not that guy.
He only ever saw Regulus over breaks and holidays, but that was still far more than he could take. He could tell Regulus was hurt by the distance Sirius had put between them, and he felt awful about it. He was supposed to be there for Regulus, especially when it was his turn to make that transition. Regulus had been so nervous, terrified he wouldn’t be able to keep up with the rest of his peers. So when he got accepted into the same school as Sirius, he was immensely relieved, and excited to get to share his college experience with his big brother.
Sirius talked him out of it.
Regulus seemed happy enough at his university, even though it was half way across the country. It still didn’t feel like enough distance for Sirius, not when Regulus insisted on calling him every other weekend, and sending pics of himself looking sinful every Friday night.
He found other ways to channel his pent up feelings. He became very popular among the other men on campus. It didn't help.
Sirius barely made it through graduation. He couldn't think about his future when he was still trying to flee his past.
The year after was monotonous at best, but at least it was quieter. Regulus had been so focused on prepping for his own graduation and applying to grad schools that he hardly even reached out to Sirius anymore. It was bittersweet. But at least, it seemed, he was finally outrunning the past. That is, until the day his past showed up right on his doorstep.
~
Sirius jumped up at the sound of keys jingling outside the lock, jolting him out of his pacing. Regulus had barely made it through the front door before Sirius was rounding on him.
“Regulus, I need to talk to you,” he said, shoving his hands nervously in his pocket.
Regulus jerked up, looking at Sirius like a deer in the headlights.
More like fucking bambi. Jesus, he’s gonna be the death of me, Sirius thought, shaking his head slightly.
“Uh, can it wait, Sirius? I just have to—”
“No, Regulus, now,” he growled, grabbing him by the arm and dragging him into the living room. “Stop trying to avoid this fucking conversation. You said you were only staying for a few days. It’s been fucking months! Have you even been looking at apartments?”
“Uh, I um,” Regulus stuttered, cheeks flushed as he glanced over his shoulder longingly. “Yes, I have been, it’s j-just hard to find—”
“I found several listings close to campus that are within your price range. I already set up appointments for you to tour them,” Sirius insisted, shoving a folder of neatly stacked papers against his chest. “Look them over. Stop putting it off.”
Regulus’s face darkened, his lips turning into a stiff frown.
“Fine, whatever. I'll get out of your hair. Is that it? Can I go now?” he fumed, yanking his arm out of Sirius’s grasp and spinning on his heel.
“Oh for fuck’s sake, Reg,” Sirius grunted, grabbing him by the shoulder.
Regulus stilled, no longer trying to walk away, but his leg bounced slightly, as if ready to make his break at any moment.
“What?” he hissed impatiently.
Sirius rolled his eyes.
“I’m not trying to be a jerk about it, stop acting like I'm the world's biggest asshole.”
Regulus merely shrugged Sirius’s hand off his shoulder and walked away.
The slight was too much for Sirius, whose nerves were beyond frayed. It had taken everything in him not to jump Regulus every single day of his visit. Sirius wanted to do horrible, unspeakable things to his little brother, things he could no longer blame on his teenage hormones. His control was shot, he was exhausted, and he was fed up.
“Fucking hell, Regulus!” he shouted, catching up to him in three bounding steps.
He grabbed Regulus by the arm roughly and spun him around, slamming him against the wall, the force of it knocking the folder out of his hand and sending it skidding across the floor. Regulus stared up at him with wide terrified eyes, and for some godforsaken reason that wrecked Sirius even more. He was painfully hard, and he hated himself for it.
“FUCK,” he shouted, spit flying as he punched a hole straight through the wall next to Regulus’s head.
He panted heavily, his chest rising and falling as he slowly started to calm down. He held his eyes squeezed shut, trying to forget the face that was just inches in front of him.
“Shit, Reg, I'm sorry. I didn't mean to—”
But his apology was cut short by the sound of soft sniffles and a loud hiss.
Sirius blinked open his eyes, seeing Regulus’s face scrunched up and splotched with tears. Then, following his distraught gaze, glanced down at the rapidly spreading wet patch on Regulus’s pants.
“Oh my god, Reg…” Sirius gasped, feelings suddenly horrified with himself. “I’m sorry, I’m so sorry, I…”
But Regulus just continued to cry, falling forward and collapsing into Sirius’s chest. He trembled harshly as hot piss continued to splatter down his legs and onto the floor, a puddle forming around the two of them.
Sirius finally felt the last of his reserve snap, wrapping his arms around his little brother and pulling him in close.
“Shh, it’s okay, you’re okay, Reg,” he hummed into soft curls.
He pulled in a deep shameless inhale, his dick growing impossibly harder. He groaned, dropping his head against Regulus’s shoulder, then turned slightly, dragging his nose along the sensitive skin of Regulus’s neck.
“Did I make you do that?” Sirius uttered. “Did I scare you?”
Regulus huffed, squeezing his eyes shut and nodded.
“Let me feel,” Sirius murmured.
He dropped his hand between their bodies, grabbing onto Regulus’s hip and pressing him against the wall. Regulus gasped, trying to protest, but Sirius was already dragging his thumb along the shape of his soft dick through wet fabric.
Regulus let out strangled gasp, high pitched and startled. His bladder reflexively pushed out another spurt of warm piss against Sirius’s thumb.
“Please don’t be scared of me, Reg,” Sirius begged softly as he continued to stroke him.
Regulus’s legs shook, and his hands balled in fists at his side, but he didn’t try to escape.
Sirius mouthed lightly over the pulse point under his jaw that was jumping erratically, sucking it leisurely then teasing the fresh mark with long gentle licks. Slowly, hesitantly, Regulus’s dick began to harden.
“Sirius,” he whimpered, his voice shaking. “W-what are you doing?”
“Shhh, baby, it’s okay.”
“B-but…”
“Shhh…”
Regulus choked on a gasp as Sirius palmed at his dick, rubbing his entire hand along the length of it, his fingers dipping down to cup at his balls.
“S-Sirius, we should stop.”
“I thought I told you to hush,” Sirius replied, nipping at his ear.
His motions were fast and sharp as he undid Regulus’s belt, his button, pulled down the zipper. He plunged his hand beneath the band of Regulus’s underwear, giving him a few rough tugs before shoving the fabric down his hips.
He dropped to his knees, splashing into the puddle of urine. Regulus looked down at him, mortified.
“Woah, w-what—”
But Sirius was already swallowing him down. He sucked hungrily at Regulus’s dick, lapping up the acrid taste of his shame.
Regulus gripped him by the curls, pulling at the scalp, trying earnestly to shove him off, whilst his hips actively disobeyed his own commands, rocking further into Sirius’s mouth. Sirius moaned loudly, sending vibration shooting through him. Regulus squeaked out his protests, but they were incongruent with the steady rock of his hips and the weak tug of his fingers in Sirius’s hair.
Sirius bobbed up and down, swirling his tongue expertly. There was a reason he was popular with all the guys in college. He suctioned his puffy lips around Regulus’s head, earning him an anguished groan, then plunged back down all the way to the base, inhaling deeply into the soft mess of curls.
It was all too much for him. He began palming desperately at his own erection through his sweats. The pleasure was too good. His throat went slack as he whined and moaned around Regulus’s dick, too distracted by his own impending orgasm to help Regulus through his. He lost himself in the steady drag of his own hand, his eyes falling shut as his orgasm crashed around him in blinding ecstasy.
Regulus gawked down at him in disbelief, then moaned.
“Fuck, Sirius,” he growled in annoyance and arousal.
He laced his fingers through Sirius’s long hair, both hands settling at the base of his skull, then pulled him in harshly until his dick hit the back of Sirius’s throat. Sirius gasped, inhaling deeply through his nose as he started to choke, but Regulus ignored him, chasing his pleasure and fucking roughly into Sirius’s warm heat. He moaned loudly as his dick began to twitch, causing Sirius to cough, pulling in desperate gulps of air through his nose, but Regulus never let up. He finally stilled as hot cum poured from him down Sirius’s throat.
He drained most of it into him before pulling out roughly, shooting the rest across Sirius’s tear streaked face before grasping his curls once more and shoving him to the ground.
Sirius looked up at him, wrecked, pleading and desperate. Regulus just snorted, shoving his dick back in his soaked underwear before spinning on his heel and walking away.
He only made it a few steps before his bladder jolted at him once more. He spun back around before he could think better of it and pulled his dick out, aiming it directly at Sirius who laid sprawled out pathetically on the floor. He tried to relax, to start the flow, but he couldn’t. His body was on fire and his dick was so hard it hurt.
He let out a furious shout from the very depths of his soul.
“WHAT DID YOU DO TO ME?” he demanded, tears brimming his eyes all over again.
“Reggie, please. I'm sorry. Let me take care of you.”
Regulus heaved with ragged breaths, before letting out a defeated huff, running his fingers through his sweaty mop of curls.
“FIX IT. NOW.”
Sirius scrambled upright, undoing the knot of his sweatpants with shaky hands and kicking them off haphazardly along with his boxers.
He met Regulus’s eyes nervously, then seeing the heat in them spat into his hand, reaching around and plunging a finger into his ass. His abs clenched as he worked himself quickly, slipping in a second finger, then a third before flipping over onto his belly and shoving his hips in the air.
“Do whatever you want to me,” he pleaded, offering all of himself.
Regulus’s eyes went wide, his hand flying to his mouth where he rubbed anxiously at his lip.
“Jesus, Sirius. Get up.”
Sirius did so slowly, his cheeks on fire, humiliated at the harsh rejection. Then Regulus’s hand was on his lower back and shoving him towards the couch.
“I’m not fucking you on the floor in that—that mess. Get on the couch. Now!"
Sirius did as he was told.
“Reg—”
“Don’t! I’m so fucking mad at you right now. On your stomach!”
He kicked Sirius’s knees further apart then shoved him roughly by the shoulder blades into the couch. He slid his tip, slick with precum, against Sirius’s slit, then plunged in roughly, giving him little time to adjust before he started fucking into him.
He hated him. He hated Sirius so much. He ruined him. It was his fault. Regulus had never felt anything this good before.
He plunged in over and over, fisting Sirius’s t-shirt and exposing the pale freckled skin of his back. He was losing himself quickly to the overwhelming pleasure. It was only a matter of minutes before he was spilling into him, Sirius gripping the couch cushions for dear life as his own dick rubbed perfectly, painfully into them. He reached his own orgasm just as Regulus was pulling out, leaving him dripping, ruined.
By the time he managed to flip himself over, Regulus was already gone. He curled up, shaking slightly as the consequences of his actions began to fully sink in. Then, he heard a loud ripping sound and looked up to see Regulus stalking towards him with the folder shredded in two.
“I’m not fucking leaving. You can’t make me.”
Sirius nodded solemnly, a slow smile taking over his face.
“Okay.”
