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The Itadori clan were known for their unique bloodline among the various Jujutsu clans. As the descendants of the King of Curses, the Supreme Ruler of the Curses inhabiting their world, members of the family were sorted after by every clan - both the high and insignificant ones.
Even though they were not the main branch (which no longer existed due to Sukuna eradicating them himself), their blood still contained hidden techniques that when mixed with other bloodlines, said techniques would either manifest or would increase the power of the techniques already available in the other clans.
Megumi and Yuuji were betrothed at the ages of seven and five, respectively. Both were the heirs of their clans - Megumi the Zen'ins, and Yuuji the Itadoris. Their match was greatly approved by everyone, seeing as Megumi presented as a Prime Alpha when he was five, and Yuuji presenting as a Prime Omega when he clocked five as well. It was just a mere week after his fifth birthday that Yuuji was betrothed to Megumi.
With their impending marriage, Megumi and Yuuji would end the strife between the Zen'ins and Sukuna - who had taken a serious liking to his many-times-over great-grandson. What even sweetened the deal for the Zen'ins was that Yuuji liked Megumi, a lot, and whosoever held Yuuji's adoration and devotion found favor in the sight of Ryoumen Sukuna as well.
Yuuji was Megumi’s very first friend. The two had play dates that saw them getting closer and closer to each other that they became best friends. Their friendship came first before their assigned duties, and deep down, even though he didn't show it, Megumi was happy that Yuuji was going to be his future wife.
The two attended the same middle and high school together. They, of course, had a chaperone with them in the form of Nobara - who later became their best friend as well. The Beta, eye patched Curse had been appointed to them by Sukuna, who didn't even trust Megumi (never Yuuji - he trusted that boy a huge deal) with Yuuji's chastity, and so he brought in one of his servants.
Megumi and Yuuji were connected by the hip. If one were to see Yuuji, Megumi would definitely be close by. Some even call them Soulmates, seeing as they could communicate without even speaking (Yuuji was the only one that wasn't a Zen'in that could understand and decipher Megumi’s grunts and 'hn's), or knew when the other was either emotional down or in need of help. Their Bond was special, and as they grew older, it became tighter and unbreakable.
When Yuuji clocked thirteen, Megumi started courting him fully - and Yuuji happily accepted. From flowers to silks to jewellery, Megumi brought gifts for his intended Mate. Of course, Yuuji found it too much and Megumi learnt to tune it down a little. Yuuji’s pout was one of his weaknesses.
Although they were already set to marry when Yuuji turned eighteen, but it still lit up Yuuji's spirits up when everyday at school Megumi presented him with one courting gift or the other. His actions even had Sukuna himself warming up to him just a bit (Sukuna really favoured Yuuji terribly).
As Yuuji's future Alpha, he regularly Scent Marked the Omega, but the black coloured collar with the amber jewel dangling in the front around Yuuji's neck (and Nobara in the background, an ever present shadow) ensured that he didn't go too far so as much to nibble on Yuuji's neck. The two usually scent marked their wrists, as it was appropriate.
Sometimes, Yuuji wore Megumi’s jacket that was drenched in the Alpha's oppressive jasmine and sandalwood pheromones. Yuuji couldn't help but sniff at Megumi’s cloth and sometimes he found himself doing it unconsciously - purring in delight everytime his Intended's scent hit his nose.
When Yuuji graduated high school, Megumi was already two years into college. Of course his betrothed wouldn't miss it for the world and attended the party. It was on that day Megumi finally got down on his knee to propose - slipping a million dollar diamond ring with different tiny jewels on Yuuji's finger. Neither cared about stares they got from people as they kissed, nor the disapproving yet resigned glare from Sukuna (who was donning on a human form).
The wedding between the two was nothing short of magical. Sukuna went all out - to the exasperation of Jin - to ensure that that day was nothing less than perfect. Yuuji's shiromuku was custom made to ensure that it fitted him perfectly. The venue was in Sukuna's temple - sakura trees planted everywhere and their petals raining down onto the earth with elegance and beauty.
Yuuji couldn't stop the smile that took over his lips the moment he saw Megumi. His husband-to-be stared at him with such love and adoration in his beautiful emerald eyes that he honestly felt like crying. Megumi looked at him as if Yuuji had hung the stars and moon for him.
The ceremonial rites went smoothly and the couple couldn't help but stare at each other with love sick expressions - getting bemused looks from Sukuna and few of Megumi’s clan members.
The pinkette couldn't help but chuckle in amusement when he remembered the fear and sadness that gripped five year old him when he had been informed that a betrothed contract had been made with the Zen'in clan for him and the heir. He'd thought his life would turn out to be miserable like those of the Omegas he'd seen on TV, but the gods smiled down at him. Instead, he got a best friend and the love of his life. He couldn't help but be amazed at how lucky he was.
The after party for the wedding was huge and epic. Yuuji, now wearing a suit with his husband, could be seen being his bright and bubbly self - being the life of the party. He dragged Megumi to the dance floor once or twice, the stoic clan head hesitant but unable to deny Yuuji.
The wedding night was equally as fantastic. In their dating years, the two of course helped each other with their sexual needs, but they never went too far. Just the usual hand job, blow job and Megumi fucking Yuuji's thighs and pecs now and then, but they never did more than that.
Megumi was gentle with Yuuji. After rimming and eating Yuuji out like a starving man with a full course meal, lapping up and drinking Yuuji's ambrosia and nectar quality slick, he took his time in fingering his bride to a dry orgasm or two - sucking and fondling Yuuji's pecs, making the Omega's nipples tender due to his pulling and biting on them. Yuuji's moans and gasps reverberated off the walls as Megumi’s tongue explored inside of him - his legs bent at the knees, his toes curled, his head thrown back and his fingers buried in Megumi’s soft hair.
The Prime Alpha made sure to prepare Yuuji well with his fingers for what was about to come. He finger-fucked Yuuji, his digits working the moist walls loose. He tortured Yuuji's sweet spot, drawing out cute moans, mewls and gasps from the naked and flushed Omega beneath him - Yuuji's delicious slick trickling down onto the bed. Yuuji pleading with him on the third finger to just fuck him already and fill him with his cum had Megumi breaking.
With the luminescent pale moon shining into the room through the balcony, bathing the two sensually in its soft eternal and ethereal glow, Megumi and Yuuji finally got to feel each other deeply and intimately for the first time. The Prime Alpha was gentle and careful as he inserted himself into Yuuji's cavern - holding himself back so as not to give into his excitement and sink into Yuuji in one, simple harsh thrust.
When the bulbous head of his cock slipped pass Yuuji's twitching rim, he almost groaned in delight. He slowly sunk into Yuuji, the Omega clutching the sheets as he whimpered at the unfamiliar pressure. When he fully sitted himself into his Omega, Megumi actually groaned out a thick moan - his stoic nature thrown out the window with just the feel of Yuuji's twitching walls clenching and unclenching around his rod.
It hurt at first, but with Megumi’s decision to not only give him some time to get accustomed to his girth, but also to start fucking Yuuji slowly - the pain resided and pleasure soon took its place. Megumi’s languid thrusts against his sweet spot had him drowning in unadulterated pleasure in no time.
Loud moans, gasps and screams soon filled the room as Megumi plowed away into Yuuji's cunt, his thrusts rough and well aimed at Yuuji’s sensitive spots. The Omega couldn't hold the sweet noises in as Megumi made him see stars - and the Alpha preened in pride at the fact that he was satisfying his Omega so well.
Megumi’s thrusts soon turned harsh and unrelenting as the seconds went by. He soon had Yuuji's back bowing as his fucked his way into his Omega's open and ready womb. The noises that joined Yuuji's sweet cries as his cock plundered his slicked up channel were loud, wet, and lewd and they, along with Yuuji's cries for more and his sweet honey and vanilla scent filling the air, spurned Megumi on.
Yuuji came so many times he lost count after the fifth dry orgasm that wrecked through him. Megumi was a beast with resolve. He was like a freight train that could not be stopped or faltered. He took Yuuji however he liked - heck, even fucking him on the balcony as Yuuji held onto the railing tight, on his tip toes as he was fucked within an inch of his life.
It was when he was on the last round - with Yuuji on his forearms, his front on the bed with his back arched, his ass up and pressed flush against Megumi's pelvis; drooling, crying and clawing at the sheets - that Megumi finally unlocked his collar to bestow onto Yuuji his Mating Bite. Megumi’s hips were moving erratically as he licked a stripe on Yuuji's nape - when Yuuji's sweet pheromones were leaking from. Now that the collar was no longer on him, Yuuji's scent was wild and heavy, thickly encasing the room in just seconds.
Megumi’s rationality and senses were pushed back as his Inner Alpha surfaced as he got a face full of his Omega's rich scent. His thrusts increased once again, the snap of his hips and his pace harsh and brutal that Yuuji knew he'd have bruises littering his body come morning.
The black haired Alpha, now feral and all Alpha in every sense of words in his false Rut, felt his knot forming as he reached his orgasm. When his knot caught Yuuji's rim and he could no longer move, the snarling Alpha took to rutting into Yuuji shallowly - getting choked cries from the Omega. He gave one final thrust that saw him bottoming out into Yuuji and the rest of his knot filling Yuuji up - making it unable for him to move at all. And with that, he leaned down and clamped his teeth on Yuuji's nape.
The Omega gave a loud noise that was a mix of a scream and a squeal as Megumi bit on his neck. His eyes were blown wide as pleasure and pain racked through his trembling body. More of Megumi’s cum filled his womb, causing his lower abdomen to distend a little, and some of it managed to leak out of his cunt even though Megumi’s knot plugged him up.
With the joint forces of Megumi cumming into him and biting his nape, Yuuji experienced an orgasm so great that not only did he pass out, he squirted - creating a huge wet spot beneath him. His eyes rolled back and he passed out to the feeling of Megumi still trying to rut inside of his limp body.
When Yuuji woke up hours later, it was to the feeling as if his body was on fire. He keened and whined in confusion, waking Megumi up - whose cock was still buried deep inside of him. One sniff at Yuuji and Megumi went feral again - devolving straight into true Rut this time. As his husband once again took to fucking him senseless, Yuuji, in the back of his head, realized that he was in Heat. Megumi had somehow induced him into full blown Heat with just his pheromones and Mating Bite alone. Holy shit.
For three days, the couple never once left their room. Of course food and water was dropped at their door once the servants at the resort learnt about their new situation (Megumi almost beheaded a poor maid for walking in on them when she tried to investigate why their newest guests weren't out of their room yet).
Megumi ensured that Yuuji was never empty - plugging him up with his knot and filling him with his seed. The Alpha littered Yuuji's already ruined body with more love bites that would take days to heal and go away. He wrung orgasm after orgasm out of Yuuji's poor body.
On the fourth day, when they finally got back clarity, the two's pheromones were mixed perfectly. Megumi now had a hint of Yuuji whilst Yuuji had a hint of Megumi. Yuuji had placed a Biting Mark on Megumi's shoulder, boldly claiming the Alpha as his. Megumi took to pampering Yuuji for days on end, carrying his wife in a bridal style (his increasing body size making it possible for him to pick Yuuji up easily, unlike before) due to the fact that their activities saw Yuuji not being able to walk for a while.
Three weeks later, after Yuuji had vomited his guts into a toilet bowl, the two discovered that the Prime Omega was pregnant. Yuuji had conceived on his Heat. The two had been visiting Jin and Wasuke when it happened.
Jin had been thrilled and didn't waste time to call Sukuna, whilst Wasuke was glaring fire and brimstone at a shocked yet happy and grinning Megumi. Sukuna looked like he wanted to string Megumi on a pole with his skin when he went to visit them in the Zen'in compound days later. The Curse was obviously displeased that his favoured descendant was knocked up too soon and fast.
Although stoic and emotionless to others but a few, Megumi was a doting husband to Yuuji. He pampered Yuuji like the Queen he was, fulfilling his pregnant cravings to the best of his powers and abilities. He didn't even think too much about Yuuji's ever changing emotions, always bearing it in mind that his lovely and emotional wife was carrying his children. The Alpha didn't even blink when Yuuji was crushing his hand on the day of the delivery, cooing out soft and encouraging words, as well as releasing calming pheromones to help the Omega strive through the child birth.
Their children were the most beautiful creations Megumi had ever laid his eyes on. Even though they were wrinkly and red, he fell in love with them. He couldn't help but gaze in awe, tears in his eyes as he held one of them whilst the other was placed on Yuuji's chest.
Megumi now had three people to love and protect, and if Yuuji willing, they'd increase in number.
It wasn't a surprise to Yuuji that his husband ended up being a doting and caring father. The clan head was always ready to see to the utmost comfort of the twins, taking over the care of them from Yuuji when he saw as much as a sign of tiredness or stress from Yuuji. Nobara and a few of their maids proved to be of great help to them.
Yuuji, currently six month pregnant with his and Megumi’s fifth and sixth child, couldn't help but marvel at how lucky he was once again. He was sitting on the engawa, a large cushion underneath him, as he watched his husband and children train with the use of their Cursed Techniques - his hand caressing his heavily pregnant stomach.
The twins, Yuuki and Wakumi (now fifteen), were sparing with Sukuna, their many times great grandfather taking it easy on them (yet easily beating their asses at the same time); whilst Jun (their thirteen year old son) and Mitsuru (their twelve year old daughter) were sparing with Megumi.
Yuuji moaned the loss of his backyard, resigned to the fact that another zen garden had to be made. Again. Nobara and Jin were cheering the twins on loudly, whilst Wasuke was watching with his usual scowl on his face, sipping tea.
Yuuji watched on with a smile, his eyes devouring Megumi’s huge and muscular body - his yukata doing nothing to hide his buffed up statue (thank you Toji-san and the Zen'in gene) - with hunger once in a while. He distracted himself with unpleasant thoughts so as not to produce slick that would let others know he was horny as fuck. He felt Megumi’s amusement through their Bond and his husband threw a knowing smirk at him before he had to leap away from his daughter's ground breaking punch.
Yuuji pouted. What a smug asshole his husband was.