Chapter Text
Sunlight streamed in through the opened windows, the mint curtains fluttering gently in the breeze and bringing in the crisp scent of outside. It paired wonderfully with the subtler pheromones of excited omega already filling up the small bedroom, and the two smells blended into an aroma that could relax any alpha.
The man responsible for the scent was currently primping in front of a body length mirror, dousing himself in cheap woodsy cologne to mask the softer smells of fertile omega. Two clinical, white scent patches covered each side of his neck and helped to hold up the flimsy facade. Happy with the nose hair burning concoction of natural pheromones and artificially produced aroma, he reached for his trusty blue sequin jeans.
Karamatsu shimmied the jeans up his legs, jumping a couple times to get the waistband past the plush thick of his thighs. Satisfied with the denim hug on his ass (he’d turned to check), he finished the look with his signature skull belt, the metal naturally polished to a shine and chilled even through the thin fabric. With a deep chuckle, Karamatsu struck a pose, legs shoulder width and head tilted up just enough to be cool instead of cocky.
The sequined fabric of his pants caught the light fabulously and reflected fragments of light all around the bedroom, dots of luminescence scattered over the unmade six futons. He felt like a disco ball, a particularly sexy one. The mirror confirmed it as he spun, ceasing the twirl with a little flourish of his twist and a wink that could make any lady swoon.
The smirk reflected back at him told him one thing: today was the day. The day had come where he’d go onto his usual street corner, “free hug” sign hanging heavy around his neck, and a beautiful beta woman would be charmed by his kindness, watering the fertile soil of her heart to allow for amorous blooms to grow. Karamatsu could already imagine it, the clear blue sky spanning above them on the day of their wedding setting the mood as they read their poetic vows. His white-clad wife would look up at him with adoration, uncaring that Karamatsu had been born an omega and ready to enter a fulfilling marriage.
Smiling dopily at his own daydreams, Karamatsu valiantly ignored the automatic dampness at the gusset of his briefs, so what if his body expressed its excitement in passionate ways? Karamatsu gave himself one more wink before strutting down the stairs, fussing with his bowlcut the whole time, and into the living room area where his brothers lounged about fulfilling their NEET responsibilities. The sliding door opened with a soft thunk to reveal Osomatsu and Ichimatsu, the former’s expression turning sour at the beams of refracted light being shot into his eyes.
Karamatsu unfolded his shades and slid the cool plastic on, leaning against the doorframe simultaneously. “Well brothers, I’m off on the treacherous journey to find love.”
Osomatsu’s slight downturn of his lips transformed into a blatant grimace, a visible shudder running down his spine at Karamatsu’s words. The alpha’s scent even went a smidge bitter, and Karamatsu’s inner omega whimpered at the projected displeasure. “Yeah yeah.” He turned back to the TV without another word, eyes trained on the bouncing tits of the omega love interest.
Not discouraged, Karamatsu turned to Ichimatsu, white teeth glittering in a smile. “Ichimatsu, my cute younger brother! How is my attire? Do you think a beta maiden will find it as appealing as I do?”
Ichimatsu didn’t move from his crouch where an orange kitten was purring under his ministrations, eagerly nuzzling its small, fuzzy head into the alpha’s hand. Still smirking, Karamatsu forced himself to keep from rocking on the balls of his feet. The fourth eldest brother had been playing some rather… odd jokes on him recently. The most notable ones included the omega opening his wardrobe to find his fresh briefs wet with foreign cum and his beloved parka soaked in the harsh scent of alpha arousal. Karamatsu hadn’t been able to wear either of those two clothing items again until they’d gone through five cycles respectively. He’d laughed off the incidents, posing more dramatically and singing in deeper pitches, but his inner omega knew what it meant. The pathetic creature cowered and submitted in equal measure.
Gently, Ichimatsu scratched behind the ginger’s ears in tender farewell before suddenly standing up, his purple hood still obscuring his face. The room’s atmosphere grew tense like the moment before you step off a cliff, peering down at the endless fall below. Karamatsu’s stomach twisted reflexively as his hindbrain whispered to one word: flee. In six steps Ichimatsu stood nose to nose with Karamatsu, the omega’s smile faltering under the silence. Osomatsu kept his gaze on the screen, face blank.
“Ichimatsu?”
A thud later, Karamatsu’s sunglasses clattered to the ground with a telltale noise that meant it the thin plastic lens had cracked. Suddenly, Karamatsu’s back was pinned against the doorframe, Ichimatsu’s chest flush with his until all the omega could see was a blur of purple. Ichimatsu’s sweatpants-clad leg rudely slid between the omega’s thighs while the alpha’s hand simultaneously came up to roughly grasp Karamatsu’s chin, tilting the omega’s head to the side and forcing him to bear his neck. It was a move so blatantly dominant and alpha that Karamatsu instinctively went limp, Ichimatsu’s holds being the only thing keeping him up.
“Wha-?”
Ichimatsu nipped once at the omega’s neck. “Shut the fuck up.” Karamatsu’s eyelids fluttered.
The weight of Karamatsu’s entire body was forced upon the delicate area where his groin met Ichimatsu’s thigh, and Karamatsu could barely summon enough strength into his legs so he wouldn’t be grinding down like a whore. Karamatsu trembled faintly, breath coming out in a thin wheeze as the air became heavy with the acrid scent of annoyed alpha. Karamatsu’s hands rose with the intent to push Ichimatsu away, yet they ended up pitifully clutching the purple cotton of Ichimatsu’s sweatshirt instead. “Brother.. what’re you..” Karamatsu’s head felt water logged, clogged with wet cotton balls until the only thing he could focus on was the diametrically opposed nature of his own stupid, sequined jeans against Ichimatsu’s sweatpants.
Ichimatsu’s nose dragged against the exposed scent gland at Karamatsu’s neck, breath puffing warmly against the sensitive skin. “No bitch would ever want you,” Ichimatsu said, sneer apparent in his voice. “So why bother? Stay home and warm the cocks already in your home instead of slutting around on the streets. Or what? Is my knot not good enough for your pussy?”
Even through the haze, Karamatsu balked at the crude words, and his stomach roiled at the mental image the alpha painted. “Ichimatsu…” He valiantly fought against the terrible urge to submit and agree, anything to please the angry alpha in front of him. His cunt clenched around nothing as if to concur and tell him to simply lay down, spread his legs, and let the alpha handle everything. The omega’s voice was weak when he could finally force words out. “Brother, please don’t say such things even in jest.”
Ichimatsu huffed a laugh against his patch covered neck, sending a shiver down Karamatsu’s spine. “So. fucking. stupid.” The malice rang clear in every spat word, and Karamatsu only had mere seconds to prepare himself before Ichimatsu’s leg began grinding into Karamatsu’s soft mound.
A terrible heat struck like lightning in Karamatsu’s lower stomach and spread like wildfire from his gut to the very tips of his fingers and toes. The pressure cruelly squished his cunt, clit dragging against rough fabric and doubtlessly chafing it. “Ah- wait-” Karamatsu blinked hot tears back as he desperately gazed at Osomatsu’s back profile with wide eyes- pleading for someone, anyone to tell Ichimatsu the joke had gone too far- yet the alpha never glanced back his way. The alpha remained placidly reclined as his hand found its way to another unopened beer can, and he eagerly watched as the omega woman got groped, a cheap gag at the expense of her dignity. Karamatsu couldn’t stifle a high whimper at the clear disregard by the eldest.
Despite himself, Karamatsu felt himself getting wetter, the scent of aroused omega filling the small room until the walls seemed to shudder under the weight of such tainted desire. With a jolt of scorching humiliation, Karamatsu realized the two alphas in the room could smell Karamatsu’s slick just as well as he could and intimately know just how badly Karamatsu’s pussy ached from emptiness, their cocks the only solution to making him whole once again. Worse, Choromatsu, Todomatsu, and Jyushimatsu, though betas, would notice the obscene scent of need when they got back. The burn of such abject shame at the thought of his brothers’ expressions twisted in disgust rivaled the inferno in his groin.
Ichimatsu’s teeth grazed the edge of Karamatsu’s scent patch, worrying the adhesive and encouraging the slow peel already begun by the sweat dripping down his nape. Karamatsu’s scent spiked with frantic, helpless fear; a bonded pair among sextuplets would ostracize them to hell. No beta woman would want to touch Karamatsu after he’s tainted by such a damning relationship even if he somehow magically broke the perverted bond. Traitor that his body was, Karamatsu’s pussy clenched in mindless lust, the threat of a bond enough to have it gushing slick in an open armed invitation.
“No… please.. Ichimatsu-!” The rest of Karamatsu’s plea was drowned in Ichimatsu’s neck.
Ichimatsu’s hands settled on the omega’s waist and squeezed until Karamatsu dimly worried about the bruises sure to bloom and how he’d explain them anyway to his other brothers. The alpha flexed his fingers over Karamatsu’s sharp jut of hipbones, and Ichimatsu’s smile was pure teeth. “Fucking gross. Getting wet for your own brother, slut?”
Karamatsu’s face burned like it was doused in gasoline, and he buried it in Ichimatsu’s neck, still finding comfort in the familiar scent of cat and rain. The omega’s only response was his hips accidently jerking forward and allowing sweet pleasure to bloom where his swollen and puffy cunt was being abused. Ichimatsu’s grip turned into sharp talons along his hips where the bitten edge of Ichimatsu’s nails dug cruelty into the pale flesh, and the alpha’s own arousal began to join the fray of scents already in the air. The room began to smell like the first stirrings of sex, of an animalistic coupling between omega and alpha that’d lead to breeding and pups.
That was the last straw.
“Ichimatsu.”
Osomatsu’s voice echoed in the small room. There was no inflection behind it- the alpha not even taking his eyes off the grainy screen, yet the name carried a gravity within it that not even Ichimatsu could ignore. For a moment, Ichimatsu’s hold turned unrepentantly bruising and the part of Karamatsu that was more omega than man was certain that he’d fuck him anyway and damn the consequences. Then with a scoff, Ichimatsu pushed off the omega- Karamatsu’s head cracking against the wooden frame- and went back to his corner but not before directing a seething glare Karamatsu’s way.
Poor Karamatsu was left against the doorway, cunt aching something fierce and heart set to the tempo of fleeing prey. The silence pressed down upon him on all sides and, though neither of the alphas were looking at him, he could feel their attention like sharpened blades directed at him.
“Hahaha..Ha.. ha…” his thin laugh petered out and the silence felt worse than before. Wiping the tears from his eyes, Karamatsu willed his legs to work so he could at least flee on two legs without crawling like the bitch he felt like. “That… that was certainly a unique jest, brother. You’ve always had such an interesting sense of humor!”
Not meeting either alphas’ eyes, Karamatsu stumbled out without waiting for an answer, trying in vain to hold his bleeding pride together. He got as far as two steps before a metaphorical chain snapped out to drag him back, each link made up of familial bonds and Karamatsu’s own selfish kindness.
“Wait,” Osomatsu said, finally looking at Karamatsu. “Come here.”
And Karamatsu, damn his biology, obeyed.
For the first time since the world turned upside down, Osomatsu’s blank mask melted away to reveal something much more dangerous. Osomatsu's expression was mild, grin lazy and half formed. His tilted head rested on the backrest of their frayed couch and he crooked two fingers in a practiced “come hither” motion.
“Come on. Niisan just wants to see that sweet pussy. Can you do that for niisan, baby?” His voice was lilting, sugary enough to rot teeth.
Karamatsu shuffled over to the alpha and came to stand in front of him, fingers clutching at his own thighs until the sequins dug into the pads like tiny knives. “Osomatsu.. please..”
The alpha half rose out of his comfortable sprawl to hook an arm around Karamatsu’s thin waist, forcing him to stand right in front of him. Osomatsu tutted as his smile sharpened into a smirk. “Shush, baby. Niisan is calling the shots right now, and niisan says strip.” The alpha grasped Karamatsu’s clammy hands and brought them to rest on the cool of the skull buckle, leaving them to tremble on it.
“I.. uh.. wait...” Karamatsu barely could get enough air to breath as his pupils thinned to pinpricks and his throat convulsed around rising stomach acid.
Osomatsu sighed good-naturedly, patting Karamatsu on the hip. “No good, hm? It’s okay, niisan has got you.” The alpha smacked Karamatsu’s limp hands out of the way to start working on the buckle himself.
The clink of the metal giving in was punctuated by the harsh slam of the door closing: Ichimatsu had left. Karamatsu barely had enough time to notice the gleam of satisfaction in Osomatsu’s eyes before the alpha bent to stifle a laugh into Karamatsu’s stomach. “Jealous bastard. Oi Karamatsu, you’d think Ichimatsu was the head alpha in this house the way he acts like he gets first dibs on your pussy.” Karamatsu’s head spun, everything progressing too fast and his jeans being forced down at a rate that scared him.
Osomatsu pushed the tight fabric down to the omega’s ankles with an audible grunt of effort until it pooled uselessly on the floor. This exposed the stretch of Karamatsu’s briefs over his swollen cunt, soaked enough to where the fabric turned see through at points. Worse, Karamatsu’s own printed face became visible on the sodden mound, the underwear custom made to have his likeness proudly presented.
Osomatsu snorted again, nose crinkling in that familiar way whenever Karamatsu said something especially painful. “So fucking lame.” He teasingly snapped the elastic of the briefs once before unceremoniously shoving them down too to join the glittering, crumpled mass.
Karamatsu stepped out of them with knocking knees, the motion parting his cunt lips with a lewd squelch. Now free of the fabric cage, Karamatsu naturally widened his stance which presented his plump cunt, and he whimpered when the alpha spread his pussy with two thumbs so that the delicate pink was exposed to the cool air, juxtaposed by the warm exhales from Osomatsu.
“Such a greedy pussy,” his finger traced the fat outer lips and briefly dipped into the wet core before retreating back to spread the slick. “Look Karamatsu, it's trying so hard to suck my fingers in.” Shaking his head in futile denial, Karamatsu sniffled, trying in vain to force the hot tears down. “Aww don’t worry sweetheart, niisan is going to fill you up with his cock, so you never have to feel empty ever again.”
With a dull smack, the alpha kicked out one of Karamatsu’s legs from underneath him and the omega toppled onto his lap, face to face.
The sizable bulge in Osomatsu’s pants pressed insistently at Karamatsu’s core and sent a raw jolt of terror through his heart where it wrapped tendrils around the organ and squeezed. The omega looked into his brother’s eyes and saw nothing but his own tear streaked and flushed face mirrored back at him. He could sit there, wasting away for eternity as he gazed into his own face, reflected back in both those dark pools and the alpha’s own identical face. Karamatsu’s usual hand held mirror fell flat against this perfect reflection, and Karamatsu truly understood Narcissus in that moment, captivated by his own terrible beauty.
Osomatsu bounced Karamatsu once on his clothed cock and grinned wolfishly at the omega’s choked squeal. Ignoring Karamatsu’s fruitless squirming, Osomatsu casually popped the button on his fly and dragged the zipper down, deliberately slowly just to make Karamatsu wetter. The alpha’s cock popped out, thick and long enough to make Karamatsu’s cunt ache in phantom pain.
The leaking head of the cock naturally notched against the plushness of Karamatsu’s pussy, the omega barely daring to breathe as he stared down at where his cunt lips helplessly parted around the pressure.
His virginity was about to be taken.
By his own brother.
That was when Karamatsu realized that he was truly, utterly fucked.