Thread by @ricecopperfish

post-shibuya yuuji suddenly falling into heat due to stress, and is breaking down totally due to lack of fabric with familiar alpha scents to make a nest with, and he's sobbing "i'm a bad omega, i killed people, i can't make a good nest, bad, bad omega" until megumi shows up

yuuji collapsing at his feet, wrecked and sad, pulling at megumi's jacket, crying "fushiguro... alpha... help me..." as he curls up in a mess of sticks, random pieces of cloth he had picked up, things that had alpha scents, but all the scents were souring, their owners dead

it wasn't a good idea in the first place for yuuji to have picked up strangers' scents, but it was understandable due to his condition. but having souring, dead scents surrounding him? unthinkable, full on disaster. it was adding to his stress and emotional load.

megumi immediately pulls yuuji over to the nearest place with restrooms. pushing yuuji's head into the toilet, megumi forces him to vomit; yuuji's saliva had somewhat congealed, trapping those rotting scents in his lungs. at the same time he blasts the showers, washing yuuji down

"vomit, omega, don't you dare stop." megumi didn't mean to sound so mean, but yuuji wasn't responding to him. yuuji was running purely on omega instincts; obey alpha, obey, obey, because bad, bad omega, nasty, evil, bad nest, obey, obey

megumi's own alpha is howling and going wild seeing his - yes, unbonded, unmated, but still his - omega in distress. in his anxiety, megumi couldn't bear it any longer; his teeth sunk into yuuji's nape, yuuji bucked, unconsciously, body arching back, but megumi didn't relent.

megumi held on, carefully releasing steady bursts of his pheromones; pine charcoal and the ocean, flooding yuuji's senses with his scent. yuuji's scent gradually cleared, from the stench of mucked fruit, to clean, warm peach and citrus. yuuji himself grew docile and calm.

before long, yuuji had went limp in megumi's arms, unconscious but no longer unstable. they stay that way a little longer, on the sodden floor of a restrom somewhere in tokyo, as megumi keeps his teeth in yuuji's nape, with a little lick now and then.

but it wasn't over. yuuji usually takes pre-heat and during heat meds, to make them easier to pass, but this sudden drop into heat was unprepared for. yuuji will be suffering, he'd be begging to be bred, but it's obviously not the correct thing to do in this situation

but if megumi was to leave yuuji to pass this heat alone, there's a very very high possibility of death to shock, as this heat was induced by stress and changes in the environment, not the usual cycle. this is an emergency, and megumi'll be damned if his omega suffers anymore

making sure yuuji was well and deep asleep, megumi releases him, belatedly realizing both of them were wet to the bone. he exits the restroom, taking stock of their surroundings. miraculously, they're in nitori. a japanese ikea. nobody's here, and megumi doubted anyone cares...

so he immediately went to work modifying a section of the store to make a makeshift room for yuuji. he hauls the display mattress over, tore open some fluffy futons, and blasted the heaters on full power (it's november!), making sure to scent them up with his pheromones.

megumi then returns to the restroom with several fluffy bathrobes and towels in hand. wrinkling his nose at the state of the restroom, he proceeds to take off yuuji's miserably wet uniform, tossing them into a bucket he snagged on the way. they're to be washed and dried later.

for now, megumi meticulously washes every nook and cranny of yuuji's body. the alpha in him pushed him to wash better, scrub gentler, to make sure his omega is comfortable and clean. yuuji's heat symptoms were clear. reddened skin, puffy nipples, laboured breathing and... slick.

megumi had plugged his nose as protection from yuuji's pheromones, so that it'll be less distracting for him to work on helping his friend through the heat safely, but the sight of clear, viscous liquid leaking from yuuji's hole still had him swallowing hard.

pinching himself on the arm, megumi clears his head with a shake. turning off the water, he begins towelling yuuji dry, vigorously careful. averting his eyes, he then inserts a slick-plug into yuuji's hole, preventing the liquid from leaking out.

megumi wraps a fluffy bathrobe around yuuji, before princess-carrying him off to the bed he's set up earlier. carefully placing him in the centre, megumi throws blankets and comforters over the other. once sure everything was alright, megumi left to take a shower himself.

while in the shower he scrubs both their uniforms clean of dirt and whatever stubborn scent still lingering around. megumi hangs them from a display rack, wears a bathrobe himself and returns to yuuji's makeshift room, all the while thinking about how to get food.

an omega in heat needs food. lots of food. he's going to need to infiltrate the employees' pantry after this. if he remembered correctly, there was a konbini across the store too. he can whip up something simple and filling for yuuji and himself, maybe rice, eggs and soy sauce.

a burst of peachy citrus-y scent snapped him out of his thoughts. megumi unconsciously licked his dry lips. that scent made him feel... starved. it always had. and right now, the scent - warm, contented, safe - was tinged with his charcoal and sea salt. it smelt like home.

he peeked through the makeshift curtains. ah. yuuji had woken up and nested. full-blown, gigantic, awe-inspiring igloo-like structure of a nest. made entirely of fabric dripping of megumi's scent. his alpha howled in satisfaction. the omega is safe with him!

"itadori." megumi calls out softly. a fluffy mess of pink hair poked out from beneath the mass of fabric. eyes hazy, yuuji still seemed out of it. "fushiguro..." it's been too long since yuuji actually had a proper heat, and this will probably last a day or two.

"itadori. is your nest okay?" he got a sleepy nod in response. "may i come in?" megumi ventured. a long pause. maybe he should retract the question. "...okay." yuuji moved some blankets around, making a hole for megumi to sneak in. but he seems to be keeping away.

crawling in, megumi turned to hug yuuji, get some sleep maybe, but yuuji had curled up, sticking as closely as he can to the wall of the nest opposite megumi. his eyes were trained warily - sadly..? - onto megumi's face. "itadori, come here." the omega shook his head.

"i... i was bad omega. alpha did the work, did everything for me. but i... i killed people, failed the nest, but alpha... bad omega don't deserve good alphas." yuuji spoke matter-of-factly; megumi felt the anger and disappointment rising within himself and the alpha in him.

"ha?" megumi couldn't help glaring at yuuji, who immediately began to cower. his alpha howled. "what did you say?" yuuji's scent was overpowered by the sudden outburst of smoldering charcoal and suffocating salt - megumi's agitated scent, the pheromones of a riled up alpha.

but yuuji was firm in his belief, eyes glittering with unshed tears. "alpha... no, fushiguro. fushiguro deserves better." he touches the mark on the nape of his neck - where megumi had bitten him, to calm him down. it was temporary, not that deep yet for a permanent bond.

"i'l be fine with this, it'll disappear soon, and i'll continue with my meds. so fushiguro doesn't have to take care of a omega like me. i can take care of myself. fushiguro needs to find a better omega." yuuji smiles bitterly. "but not in tokyo, everyone's dead. it's my fault."

suddenly megumi finds himself looking down on yuuji, arms caging the other's head, teeth bared in a feral sneer. he wasn't quite sure when he moved, how fast he moved, but megumi ignored thinking - yuuji was looking up at him in stubborn defiance.

"you keep saying it's your fault, itadori. you forget your place; you're just a lowly omega. there's no way an omega like you can ever do great terrible things. you're weak." stinging words tumble out of megumi - yuuji's eyes widen in shock. megumi never speaks like this.

megumi, nobara, gojo-sensei - even though all the jujutsu sorcerers around him were alphas and betas, they never looked down upon him for being an omega. they never made him feel uncomfortable, unsafe. just a few minutes before megumi was his normal, gentle, caring alpha self.

"you have the audacity to tell me, YOUR alpha, to find another omega? ordering me around..." megumi immediately bit yuuji's neck, near to his arteries. yuuji froze, a high-pitched squeal leaving his mouth. despite his words, yuuji was still very much in the throes of heat.

"you hear that? such a whore-ish omega, embarrassing. so hungry for punishment, you blame yourself for things you didn't do?" megumi bit again, hard; blood dripped. yuuji's eyes had glossed over, breathing scattered. an unceremonious slap to his cheek broke him out of the trance.

"listen to your fucking alpha, omega." yuuji let out a small sob as he felt his insides clench at the commanding tone, slick leaking from his hole despite the plug. megumi narrows his eyes. his scent has not calmed down yet.

"in this unfair world, only alphas can do great things. terrible or good, only alphas are capable." it was a sentence hammered into everyone's mind upon their secondary gender reveal. to alphas, success came as natural as breathing. betas work harder, living as the backbone.

but omegas, who make up 1% of the world population, have no prospect of a future. they are simply to be bred. but itadori yuuji was different. he was a late presenter, at 15; he doesn't care for such conventions. doesn't help the alphas around him didn't care much too.

but here, megumi's stare is boring a hole in his soul. "only. alphas. are. capable."
yuuji shook his head, but it was really him, he was the one to raze Shibuya to the ground. he failed to rein Sukuna in. weak, omegas are weak, he was a bad omega anyway.

"no, itadori. you were capable of that because it's not your fault. it's OUR fault." yuuji gasped as megumi's teeth punctured the skin at the crook of his neck yet again. "i am the alpha behind your failure. you, omega, failed, because i, your alpha, failed."

yuuji shook his head as hard as he can, his hands scrabbling to push megumi away. "no, fushiguro... that's not-!" but megumi kept licking his neck, and it's getting a bit too warm. "it's our fault, omega. we bear the consequences together."

// end of part i, maybe i'll have the guts to write the r18 scenes as part ii one day LOLOLOL we need angry mating here www

thank you for reading, please do drop your thoughts and comments!