Archive of Our Own ^beta

Before there was Jake Sully and his story of how he joined Pandora in its fight to preserve the beauty of its world, there was the beginning of humanity discovering Eywa and her in turn being fascinated by humanity.

Somewhere deep in the forest of Pandora, inside the science quarters of a small compound, the concept of human driven na’vi bodies was being brought to fruition. Getting the right blend of human and Na’vi dna was proving difficult. Too much human and the body turns out deformed and unable to survive outside its incubator, too much na’vi and the body doesn't allow a human driver to connect. 

Of course another issue was suppressing brain development enough so that the body doesn't become sentient on its own but can still perform basic functions such as breathing and heart beating without a conscious mind. Only a handful of early Avatar specimens came out with their own consciousness and were placed in ranks to be raised as human sanctioned hybrids, they were too expensive to waste and were instead useful in learning how to further the avatar program. They unfortunately didn't make it very long for various reasons.

A weird aspect of combining human dna with na’vi was that the human genes brought out dormant genes in the na’vi genome, such as additional forelimbs and colorful head ornaments.

Most of the too-human avatars were too deformed to make it outside the incubation chambers and the na’vi dna seemed to have a failsafe for these deformities, often peacefully reclaiming the life before it was subjected to human research, however one such specimen with many irregular na’vi features did survive, despite the odds.

This specimen surprised everyone involved in the avatar program, with the excess in human dna making this specimen equipped with two sets of arms, a wide open maw resembling a mouth was present on the abdomen, a deformed calcified plate protruding off the right side of the face and two sets of eyes like most of pandora’s fauna. It was one of the most complete looking deformed specimens they have seen yet. Despite the additional anatomy problems these could bring, this specimen proved against the odds.

Megumi cant speak for the na’vi side but he would bet that the stubbornness against odds very well may belong to the human side of this specimen.

He was assigned to the avatar program a few years ago as one of the biologists to help fine tune the avatar bodies. He was unfortunate enough to witness many of the failed trials, so many unique and interesting findings that he couldn't research further. One of the fascinating parts of Pandora is its ability to preserve itself in every aspect of its nature. Whatever it deems detrimental it swiftly removes. The first human na’vi hybrids they tried to make in a petri dish wouldn't take at all, despite them conditioning the dna to recognize one another as familiar. Megumi was even more intrigued by how little they had to do to actually combine the two species, they were so similar even in their differences. Convergent evolution would be the explanation here through the very basic blueprint of life. But two planets light years away from each other was still an impossible coincidence. If Megumi learned anything about the progress science has made in the last few hundred years, it's that despite the odds, they’re never zero.

Which brings Megumi to the present day now, where he is in charge of monitoring and maintenance of one of their most interesting failed avatar prototypes.

Optly named Sukuna Ryomen for his ‘two-faced’ appearance by the local na’vi, who they’ve asked if any individuals like Sukuna existed outside the lab. The locals were just as intrigued and curious about the strangeness that was Sukuna. They said they have not seen a four armed na’vi in centuries, only heard of in stories. Though Megumi believes those stories might have stemmed from na’vi children seeing a prolemuris for the first time, a native pandora species that resembled earth's apes and looked similar to the na’vi but still having pandora’s traditional body plan of six limbs and four eyes.

Sukuna was unique in more than just his noticeable extra arms, he also had pale pink hair, unnatural to both na’vi and humans alike, Megumi thinks it was a mutation they overlooked between the human and na’vi dna chains. In any case it functions the same as they intended, long strands to braid around the kuru. Even the tuft at the end of his tail was curiously pink. 

The most concerning part about this specimen, which Megumi was worried would be the most detrimental to its survival, was the large maw on its abdomen. They think it seems to be an attempt at the typical respiratory features of some of pandora’s fauna, like the air intakes at the base of the neck or top of the chest on a Banshee or Direhorse for example. But this strange apparatus is equipped with teeth just like a mouth. 

Upon further examining, the mouth structure does not behave like an additional eating sight but as an air intake just like they theorized. The inside is coated in lung tissues to bring oxygen as close to blood vessels as possible, functioning just like lungs would. The pseudo teeth were merely a defense of a vital organ, like any unique organism would have. It is also equipped with a tongue-like muscle to keep the lung tissue moist. Strange and fascinating all wrapped in one, Megumi still can't tell how this structure came to form at all. At least not yet.

Due to his strangeness, Megumi had to run a mandatory check-up on the specimen every week, recording any changes and abnormalities.This week was like any other.

Megumi walked into his lab room, which also happened to be the exam room. The base for his operations and side project was a small compound on the outskirts of the habitable zone, far from the military base and close to a small peaceful Na’vi tribe that he ,secretly from the RDA,  collected and shared information with. The compound was quiet this morning, Most of the staff had gone back to the main base for a while, as they were needed there to manage the actual avatars that they successfully created. Only him and a few others were here, given the only surviving non-avatar hybrid was in his care and currently playing with a microscope in the corner of the room.

The just over 3 meter tall hybrid stood up from his crouch and greeted Megumi with a fanged smile, his ears perking up.

“Megumi!”

“Dr. fushiguro, “ Megumi corrected. If he let Sukuna get away with it, he would be unbearable.

“Right,” Sukuna laughed, obviously ignoring him.

“Come on,” Megumi slid his chair over to the exam table, “ Up.”

Sukuna hopped onto the table, swinging his legs over the side and leaning back on two of his arms, the other two clasped hands and rested over his lap. He seemed excited today.

Megumi then noticed he wasn't wearing the standard issued avatar shorts, he was wearing a green loin cloth much like the locals nearby the compound wore. While Sukuna usually didn't wear a shirt because of his arms, Megumi was still a little surprised to see so much skin. 

Has he documented his unique markings in detail? He should if he hasn't already, Sukuna has a mix of regular stripes and dark contrasting stripes that Megumi would like to understand.

“You visited the Tawkami recently, I heard?” Megumi asked, nodding to Sukuna’s clothing as he gathered his papers to write down his results, as if he hadn't done this dozens of times.

Sukuna grinned, “You like it? They showed me how to make one of my own.” He picked up some of the looser cloth that hung off the front, “ And how to fix it around my tail,” Sukuna leaned to the side to show off his waving tail and the beaded loops around the base.

“The color reminded me of you,” Sukuna said, his voice soft.

Megumi drew his eyes from Sukuna’s handiwork to make eye contact with the large cat-like eyes peering down at him. Megumi sorta felt like a prey animal under those eyes.

“Oh really?” Megumi entertained.

Often when Megumi was busy with his research and Sukuna was bored, he was allowed, only to Megumi’s and a single other trusted colleague's knowledge, to venture off to the local Na’vi tribe that lived just past their perimeter way out here. Sukuna was able to learn more about being Na’vi than he could from their human textbooks, Megumi thinks it's good for him, his only other option was being trapped in this building his whole life. Maybe one day Megumi could show him more of the world when tensions weren't so high.

For now he would continue his research and record Sukuna’s growth. The height of the chair and exam table made their size difference seem a little bit closer, but still, Megumi only barely reached Sukuna’s chest from this vantage. Has he gotten taller?

“Dont let me forget to measure your height after this, “ Megumi told him. He nodded. “ Now, is there anything new or painful you’d like to share with me?” Megumi started, reading off his clipboard.

Sukuna pursed his lips and looked to the side as if he was thinking before he shrugged and looked back at Megumi.

“You don't know?” he questioned, usually Sukuna’s answer is no with a roll of his eyes.

“I mean I don't know if it's new technically?”

“What?”

“Nothing, I'll show you after” Sukuna conceded.

Megumi squinted at him, what could Sukuna be experiencing or referencing that he would bring it up but not show him right away?

“Well if something is wrong, I'd like to know about it sooner than later.”

“Nothing is wrong, I promise.” Sukuna held up a pinky on one hand. Twenty total fingers, Megumi did a quick visual count to make sure they were all accounted for as he wrote that down. Next he reached up and lightly snapped his fingers to check auditory response for both ears; good.

“Okay, whatever you say” Megumi skimmed through many of the obvious observations, yes;still blue, yes; coherent, yes; still alive.

“Hows your appetite been?”

“Ravenous” Sukuna smirked

Megumi paused his pen, looking slightly concerned, “ Are you not eating enough? If the base food isn't enough for you, you're welcome to help yourself to my fridge or I know the Tawkami are willing to share.” Megumi stated.

“No, no, I'm eating fine, I just have been hungrier lately.” Sukuna waved a hand while rubbing the back of his neck with another.

“Hmm, I hope you're not having another growth spurt, you're tall enough as is.” Megumi went back to his clip board, writing a few notes.

Due to the rapid growth hormones they experimented with for the function of the avatar bodies, Sukuna is technically only a few years old but he is mentally and physically around 20 years old, which Megumi notes down that Sukuna might be going through a form of puberty considering the hunger and the anger outburst they had a couple weeks ago. He’ll check his blood for hormone markers.

“Can I take a sample today?” He asked him.

Sukuna’s ears pinned back, the playful sway of his tail flattened, but he looked more petulant than anything else.

Sukuna hated needles. Megumi doesn't blame him, the first few weeks of consciousness for him they poked and prodded him non-stop for tests. The scientist who made him, not Megumi.

“What do I get out of it?”

“Maybe I can convince them to let you out into the field for real” Megumi suggested, looking down at his clipboard, he’s not so sure if he could do that, the tensions between the RDA and the Na’vi have not improved significantly and even his clearance in the science program wouldn't get him far. The people in charge don't like their science projects, especially ones that prove no measurable benefit.

They tried to shut down Sukuna when he first formed consciousness, because that wouldn't work for the avatar program very well, but Megumi was part of the team that convinced them it could be beneficial to keep him. Initially it was to further his research of the Na’vi genome, his area of expertise, but after a couple years, he’s the only one still in favor of keeping Sukuna around, everyone else has become more or less indifferent to him. Megumi has grown fond of Sukuna, even taking a dock in his own salary to fund Sukuna’s life.

The general thinks he is a threat to security; too Na’vi with no earth experience, and he’s too strange and alien to humanize with for most. Megumi doesn't think so.

“What if I wanted something else?”

Megumi looked back into Sukuna’s eyes, they were a mesmerizing orangy red color, 

“Like what?’

“You?”

Megumi’s brow raised in surprise. He would say Sukuna and him were close, at least Megumi would hope so, he’s the one who's been with him his whole life. Sukuna does seek him out amongst everyone else at this compound when it comes to… anything really; learning, food, entertainment, etc. 

Sukuna has him nearly all the time, except when he’s required to return to base for in-person updates and reporting his research. Or when Sukuna has his fits and runs off presumably to hang out with the Tawkami for a while when he gets tired of being around humans. Which Megumi totally understands, he would too if he could.

So over the years, Sukuna and him have bonded, becoming unlikely friends, despite the ethical convoludity of scientist and science creation.

“Me?” Megumi entertains, Sukuna is looking at him intensely and he doesn't know what to do with it. He lets his own eyes wander, staring at the pages he’s gone over a million times but not really looking at them anymore.

“Its always you studying and looking at me all the time,” Sukuna props two hands on the edge of the table while reaching one out to obscure the clipboard in front of Megumi, lowering it from view. His hand alone covers the entire page. Megumi notices. “ I want to look at you for a change” Sukuna smirks when Megumi meets his eyes. They're soft in a knowing dangerous kind of way. The kind of way a teasing lover might look at him.

Megumi feels goosebumps prickle along his neck. He can feel his own eyes widen at his straying thoughts. What is he thinking? Megumi composes himself quickly, digesting Sukuna’s words and what they could mean.

“You want to play scientist?” He asks, hoping he’s just misunderstanding Sukuna’s intent and probably needing to take a long cold shower for himself for even letting his thoughts go in that direction. 

“We could do that?” Sukuna contemplates, like an idea has struck him, “But that's not what I meant” Sukuna leans forward on the exam table, his towering height now really noticeable as it blocks the overhead lights. The hand that had slowly lowered the clipboard in Megumi’s grip now tentatively climbs to rest at Megumi’s shoulder, idly playing with the lapel of his lab coat.

Sukuna’s eyes trace down the front of Megumi’s torso and on their way back up they catch at the bob in Megumi’s throat as he swallows the saliva building up there. He can feel his heart pick up pace but it hardly compares to the heat coming off of Sukuna’s hand on his shoulder. Great mother, even just his hands are huge. 

What has gotten into him?

Megumi tries to dispel the shift in his body from Sukuna touching him. He shouldn't be reacting like this, Sukuna touches him frequently, the four arms and confined living are a recipe for a fairly touchy individual. He ruffles Megumi’s hair and he touches his shoulders or upper back all the time. Why now does it feel different?

The eyes. All four of Sukuna’s unique eyes are looking right at him. Into him. Megumi likes the attention.

“I want to see you, Megumi”

Megumi nervously laughs, but doesn't pull away from the blue hybrid. 

“There isn't much to see,” He tries. Looking down at himself in his small human body wrapped in a white lab coat and all. He has wondered a handful of times what it would be like if he was an avatar. Maybe he could more easily understand Sukuna if he was. The gaping difference between them weighs on Megumi in a way he thought he put to rest already. There's no use wondering, nothing can be between them except a mutual friendship.

“Show me.” 

Megumi connects eyes with Sukuna again, distantly wondering how he ever looks away from those all-consuming eyes, and he drops the clipboard when Sukuna leans his large head in, letting out a gasp when it hits the floor. Sukuna’s forehead is resting against Megumi’s. Their noses brushing. Sukuna is massive, and Megumi has never felt so fascinated by how small he is in comparison.

“Sukuna,” Megumi breathes

“Please?” Sukuna searches Megumi’s face back and forth, waiting for a signal.

Sukuna climbs off the table while still keeping their heads connected and crouches on the floor in front of Megumi, two hands settle on Megumi’s thighs, one still tugging at his lapel and the other comes up to brush his fingers along Megumi’s jaw, tracing the curve.

Megumi reaches his arms up to grasp Sukuna’s upper biceps, trying to get ahold of himself while holding back Sukuna. Not that there is much he could actually do to stop the ten foot tall hybrid. Something in his gut stirs at that thought.

“We can't,” Megumi says, a whisper that he must say. His heart is racing but he wants Sukuna to keep making it race.

“We can't or You can’t?” Sukuna clarifies.

“ I- we-” Megumi can't find the sound reasoning as to why not. He likes Sukuna, Sukuna clearly likes him. What more is there to it? Power imbalance? Sure Megumi is the provider and caretaker but Sukuna could easily overpower him at any given moment, they cancel each other out here. Plus a hot giant blue alien is curiously flirting with him first.

“Please Megumi?” Sukuna tilts his head slightly, his ears pinning back in concern. Megumi can see it in his eyes, he thinks he’s gone too far and ruined the trust between them. The quiet retreat on his tongue that's waiting out Megumi's response first.

Megumi shuts his eyes and rubs his head slightly into the hardened plate on Sukuna’s face. If he rejects Sukuna now, he may never see him again. Who knows what he’ll do. The man has been rejected by both species that made him and has almost paid his life for it multiple times. He’s run away before, what if he doesn't come back this time? Megumi doesn't want to lose Sukuna for something they both want anyway.

Before he fully makes up his mind, his body chooses for him by nodding his head into Sukuna’s.

He feels Sukuna dip his head a little before their lips meet, his mouth entirely consumes his, but it's soft and they find a balance. Pushing and pulling into each other, Megumi lets go of Sukuna's arms to wrap them around his neck instead, hands tangling into the short hairs by his nape. Soft. He thinks to himself. It must have come out as a hum because he can feel Sukuna smirk against his lips. 

Now a pair of hands are peeling Megumi’s lab coat off his shoulders while one more works at the buttons on his shirt, the final still caressing his cheek. Megumi lets go long enough to let Sukuna undress his top half. Layer by layer his torso is revealed. Feeling a little self conscious, especially under the blaring white lights of the lab, he subtly covers his torso with his arms. Pulling away from Sukuna.

But Sukuna doesn't let him get very far, taking his small pale arms into opposite hands so they can hold him open, exposed. Megumi can feel heat running through his cheeks and across his chest, turning the skin pink.

“I was serious when I said I wanted to see you, Megumi,” Sukuna says, his voice an octave deeper than normal. His voice seems so much older for someone who is only twenty, while Megumi has a few years on him at almost twenty eight. Those goosebumps from earlier spread down his spine now. Tingling through his body.

The bottom pair of arms land on Megumi’s hips, teasing at the edge of his slacks, 

“All of you” Sukuna states.

Megumi gets another rush of Wrong! Don't do this! And he thinks suddenly about the other people in the compound. His lab has a see-through glass door, what if someone walks by? What if someone sees? 

“Sukuna!” Megumi jolts back when he feels a large hand brush against the front of his pants, definitely feeling how turned on he’s gotten just from some light kissing and a little man-handling. Sukuna stops his intention to rid Megumi of his belt, clearly pleased with this new knowledge.

“Wait, we should-” Sukuna is kissing him again, this time dipping his tongue into Megumi’s mouth, halting all thoughts in their place. His tongue alone is big, filling his mouth and exploring his pallet and sliding against his own tongue. Megumi moans.

Suddenly a rumbling sound resonates from Sukuna. He’s purring? Megumi can feel it across his own tongue, feel it through his lungs. Accompanying the purring, there's a loud crash behind Sukuna. They both retreat from each other, fear and surprise taking over their expressions as they look towards the sound. Sukuna’s happy whipping of his tail had got caught up in the wires and tubing hanging around the exam table, sending a few rolling monitors crashing to the ground. Sukuna winces slightly and looks back at Megumi as if to say ‘whoops’ unapologetically.

Megumi laughs in relief. Before they can resume where they were, Megumi places a hand on Sukuna’s chest, sculpted of course, and runs his other hand through his own sweaty hair on his forehead, pushing it up out of his eyes. Megumi can feel Sukuna’s strong racing heart beneath his fingers, it's just the same as his.

“We need to move this somewhere else” Megumi pants, searching the lab for somewhere they could be more covered. There really wasn't anywhere that could hide them and accommodate Sukuna’s size.

Sukuna picks Megumi off his chair and spins them around, placing Megumi up onto the exam table and Sukuna’s back is to the door now. Providing little but some coverage for Megumi’s poor sake.

“Why? It's just us here, I made sure.”

“But I thought-” Megumi trails off when Sukuna shakes his head.

“Everyones off base today, I wanted you all to myself, finally.” Sukuna says like he’s been planning this for a long time.

“How did you-” cut off again, this time by Sukuna dipping and kissing him swiftly.

“Dont worry about it, will you just, “ Sukuna pointedly looks down between them, there's a noticeable tent in Megumi’s pants but there's an even more undeniable tent in Sukuna's loin cloth that's starting to show. “Indulge me?”

Megumi's mouth goes a bit dry at the reality he’s found himself in. His brain supplies him with the biological fact that Na’vi are growers in the genital department, in fact most of it is tucked away inside the body, allowing for a much smaller vulnerable area. He’s also struck by the fact that Sukuna is unique regarding his reproductive organ in another way that he was only very briefly privy to when he first came to inside that incubation chamber.

Sukuna has two penile appendages.

Megumi cannot deny that he is both curious and turned on by that fact and he wonders how the two work. Do they work in tandem? Independent? Is one sterile and the other functional? Both or neither. Megumi wants to run tests and he feels like a doorway has just been opened to him.

He's getting distracted.

Megumi nods his agreement to Sukuna, no more arguing or restraint. Sukuna’s bottom pair of arms finally unfasten Megumi’s belt and slide his pants down to his ankles where they get caught on his shoes. Without wasting time, Megumi toes off his restricting shoes and finally lets his pants slip off. Now Him and Sukuna are wearing about the same amount of clothing.

“Hmm, you should walk around like this more often” Sukuna purrs, eyeing his torso and exposed thighs, only his boxers remaining.

“Hah, you wish, “ Megumi blushes, the cold metal of the table shocks his legs where it touches but he doesn't pay much mind to it when Sukuna’s heat is radiating off of him.

“I do,” Sukuna grins as he takes Megumi's legs and wraps them around his slender waist, his upper arms supporting his back and grasping the back of his head to bring him in for another kiss. His ankles cross at the base of Sukuna’s spine right where his tail sways back and forth with excitement. 

Sukuna ruts into Megumi, their fronts rubbing, Megumi can hear Sukuna groan into the kiss.They break to take a breath “I wondered if humans had the same setup like Na’vi,” Sukuna gestures to their groins, “like me?”

Megumi pants while his brain tries to catch up to what Sukuna is saying, he gasps a little, “Sorta, though most males only have one,” he informs, "I'm curious to see how yours work” Megumi admits. The blush never getting a chance to go away. 

“Then we shouldn't disappoint our curiosity,” Sukuna leans in to go for another kiss, claiming Megumi for all he’s worth but he abruptly pulls away. “Wait, there's something I want to show you first!” Sukuna leans back before their lips touch. Megumi is momentarily jarred by it.

Sukuna takes one hand to fetch his braid that had been resting along his back. Pulling the hair and the protected kuru within forward. Megumi engages his mind a little more, having also been curious about Sukuna's Kuru before but why is he addressing it now?

As far as Megumi knows, Sukuna has never been able to connect his Kuru to Pandora, Megumi thinks he’s locked out in a sense because of his too human nature, his Neural queue is just defective to Pandora and its fauna. 

Sukuna presses the end of his braid until the Neural fibers spread out and illuminate like usual, searching for their connection point. Something in Megumi’s chest tightens thinking about how this fundamental piece of Na’vi culture and livelihood is inaccessible to both him and Sukuna. Even more so Sukuna who he knows longs to belong somewhere.

Then something he remembers brightens his eyes, ‘Something technically new and to be shown later’ Sukuna’s earlier excitement and elusiveness.

“Were you able to find something you could connect to?” Megumi asks him, excited for the possibility. Libido not forgotten but pushed to the side.

“Maybe, I don't know yet, “ Sukuna answers him vaguely

Megumi pinches his expression in question before he sees Sukuna bring the neural queue towards him.

“Me?” Megumi startles, it wont work and Sukuna will just be disappointed, his heart aches all over for the hybrid. “Sukuna, I don't think-”

“Trust me” Sukuna says as he offers his neural braid, hoping Megumi will accept and try for him.

He eyes the whisping tendrils as they fan out, pulsing with a light glow “Okay,” he says with as little doubt as he can muster.

Sukuna spreads the neural fibers across the hair at the base of Megumi’s head, right where he would have a kuru if he were a na’vi. The tangling threads twine with his hair and for a second all Megumi feels is the warm pressure from it. He can almost feel a faint almost static feeling from the connection. Like the hum of electricity.

Then a rush of emotions and memories hit him. He can feel his pupils expand at the neural lock. He can see it in Sukuna’s eyes too, his pupils blown wide and his mouth hangs open in disbelief. They’ve connected.

Megumi can feel Sukuna’s excitement and fascination and fear all wrapped together, lacing together with his own enlightenment and anticipation. He can feel their bodies sync up in rhythm for both heart beats and breathing too. He can feel the adrenaline rushing through their blood streams, the coiled strength in Sukuna’s body, the outpouring fondness he holds for Megumi.

He had no idea it was this intense and grounding to connect Neural pathways with another being. Megumi almost feels drunk with the onset of emotions and connection. Sukuna’s utter relief and desire flooding his system with endorphins. Megumi could get used to this feeling.

He moans at the spike in arousal he feels in the connection, who it belongs to he can't tell ,but it inspires Sukuna to reconnect their mouths together as they let the dopamine surge through them. Sukuna’s large hands surround him, one cupping his face, one splayed across his chest, fingers tracing his neck, another grasping his hip while the thumb brushes the hem of his underwear and the final one grasping his ankle to keep it around Sukuna’s waist.

Sukuna ruts forward again and this time Megumi can feel the pleasure like a feedback loop crossing between them, they both part to moan and pant. Sukuna breathily laughs.

“If I had known this is what it would be like,” he says. Confirming the longing suspicion Megumi had.

“We would have done this sooner” Megumi finishes for him, nodding his head which sends a shiver down his neck from the connection point. Sukuna’s neural fibers shouldn’t be able to amplify like this, connecting to Megumi’s nerves so easily. There's a part of him that wants to take this new information and study it right this moment. But with the way they're feeling, that's going to have to wait.

Sukuna grins with Megumi’s agreement, two of his hands now tracing down his ribs and ticklish sides until they reach his final garment. “Time for these to go” It could have been a question but Megumi accepted it as a statement and scooted his weight off the table to allow Sukuna to roll the fabric down his thighs and finally off of him.

There he was, bare before the most mesmerizing and stunning being he has ever laid eyes on. One whose intellect and curiosity rivals his own. One who challenges him daily and makes him strive for a better outcome for both of them. The one who makes all of his stress inducing research worth it.

And he was currently standing between his legs, eyes drawn in the utmost desire and connected through an otherworldly physical bond.

Megumi would say he was blessed by Eywa herself for letting Sukuna through her barriers.

Sukuna’s eyes wandered down Megumi’s torso, gaze landing at his hard cock that curved towards his stomach. A little above average sized and usually pale like him but now it was pink with want, blood rushing through his nether region and blushing more with Sukuna’s heavy stare. Megumi wanted to pull his legs in for comfort but Sukuna’s hand on his ankle tightened. He looked up to meet his eyes and Sukuna looked like he wanted to eat him whole.

“Sukuna,” Megumi said gently. That seemed to snap the hybrid out of it momentarily, he locked eyes with Megumi again, tilting his head ever so slightly, “ Its your turn” Megumi nodded to his loin cloth which was having trouble containing Sukuna as one purple tinted head was peaking out the side of the garment.

Sukuna quickly untied the fastenings of his coverage and let the fabric fall down, slipping neatly off his striped thighs and tail. The beads make a light tapping sound as they hit the tile floor.

Now Megumi had full sight of the two cocks jutting from between Sukuna’s legs. One on top of another, both about equal in length and girth, and Megumi’s mouth watered. He’s pretty sure he could take at least one comfortably, but it would be pushing his limits, and yet here he has two to work with. The two twitched and bobbed as more blood filled them, increasing the intensity of their purple color and Megumi could feel through the neural link that they both like what they see.

“Yours is different than I imagined,” Sukuna tilted his head, Megumi flushed with embarrassment, “ It's cute.”

“It is not cute!” Megumi cries

Megumi can feel Sukuna’s amusement through their link. Bastard. 

“Can I touch you?” Sukuna asked him, the same way Megumi asks him every time they do a check up. It tugged on something inside Megumi but he couldn't quite put words to it.

“Yes,” He breathed, his fondness for Sukuna concentrated into their connection.

One of Sukuna’s hands gently glided over Megumi’s erection, the touch causing the appendage to twitch in response. Sukuna curled his pinky and ring finger around the base letting his thumb hover just above the head. Just the two fingers were enough to completely wrap around it. Sukuna squeezed a little and the pleasure quickly shot through both of them, causing them to moan in unison.

Megumi could also feel the arousal spike from Sukuna, he was loving this.

A thought occurred to Megumi, “ I'm assuming you've jerked off before, right?” He lifts his head as he asks, not realizing he let it sag between his shoulders while Sukuna studied this new part of him.

Sukuna gives him a look while the lightest blush appears on his cheeks that answers that question for him. ‘Yes but also do you think im stupid?’

“Sorry, I was just wondering,” Megumi lifts one hand to apologize for what sounded condescending, “ you are a healthy young male after all, half human at that”

Sukuna brushes off the slight quickly, sighing, “ Yes, I've jerked off before, what about it?”

“ Let's start with that” Megumi suggests, scooting his body closer to Sukunas and showing the hybrid to line up their dicks, well Megumi’s and Sukuna’s lower one for now.

“See?” Megumi lets out a shaky breath when Sukuna wraps his massive hand around both of them, applying heat and pressure that Megumi needed. Sukuna is quick to understand the idea and begins pumping them up and down. Their precum is abundant enough to provide a good slide. They moan and hum as the pleasure builds between them, Sukuna’s grunting in his ear providing the perfect soundtrack for his fantasies for years to come.

Megumi reaches out his hand towards his jaw to pull Sukuna’s mouth back towards his own, while his other hand finds his neglected upper dick. Megumi moans into Sukuna’s mouth and swipes his tongue over a fang as he realizes his hand doesn't wrap around Sukuna’s dick all the way, he’s bigger than he previously thought. The man is massive in comparison to himself

“Oh fuck” he whispers in between a breath.

“Hmm” Sukuna purrs into his mouth as Megumi squeezes and rubs his thumb at the frenulum. His cock is so hot in his hand, Megumi would think it could burn him if he wasn't already feverish himself.

They both match in pace and begin to speed up, sensing the peak of pleasure through their neural lock. Megumi hasn't had a partner in years, and he thinks this is likely Sukuna’s first time so this is going to be quick.

They both link up and come at the same time, cum coats both of their hands as wave after wave of euphoria washes through them. Megumi verbally gasps and moans as he hasn't had a good orgasm in a long time. Twitching as Sukuna provides pressure to the oversensitive head of his dick, rubbing and forcing out every last drop.

“Ah! Fuck, Sukuna” Megumi pushes his hand off them as he continues to overstimulate him.

Megumi looks down between them to see their mess, his vision spotty from the pleasure, it definitely was Sukuna’s first time because he can feel the new experience being filed away into his mind through their connection. He chuckles at the way this whole thing feels, how it started and where they are now.

Sukuna’s cocks are now only half hard, as Megumi confirms his studious mind that as far as he can tell, both penises are functional and both produced a sufficient amount of vividly white cum. Now the question is, are they supplied by a testicle each or simultaneously?

Sukuna laughs.

Megumi looks back up at him, eyes squinting and expression half pointed and half blissed out.

“Whats so funny?”

Sukuna smiles at him, breathing like he ran a marathon, “ You're always studying me” he answered.His expression fond.

Megumi blushes, because not only did he get caught but his cock twitched at the observation, clearly interested in performing more ‘tests’.

“I think to make sure this ‘study’ is done properly, we should do it again.” He braves. Hoping Sukuna really did enjoy what they just did.

“Oh, really?” Sukuna raises his eyebrow, the eyes on the calcified plate seem to narrow in on him, filling with a new wave of lust. “ Should we test this again right now?”

Megumi is still catching his breath as he answers with a convicted “yes” 

Sukuna rushes in to kiss Megumi again, their mouths colliding and Sukuna’s tongue reigning dominance throughout Megumi’s mouth. One of Sukuna’s hands reaches behind Megumi’s head and presses the neural fibers against his skull harder, Megumi can feel the electric connection deep in his brain cavity, it was an addicting feeling he never wanted to part with.

Sukuna was rutting against him again, this time his lower cock was rubbing through their combined mess on Megumi’s stomach which he was able to get a visual idea of how deep Sukuna could get inside him and the thought made him feel drunk with pleasure.

Sukuna was leaning over him, leaning him back on the table. The cold metal was an afterthought by now, Megumi was more concerned with the whereabouts of his lube. Now both of Sukuna’s cocks were hard again and rutting on either side of Megumi’s. Megumi was only half the length of Sukuna, and outnumbered as well, but the slip and slide of all three dicks was overwhelming and yet he was greedy for more.

“Mhm, Suk-” Sukuna bit into his lip lightly, grunting in pleasure, “ Sukuna, inside, please” Megumi found himself begging. He wanted the man all the way, in every sense.

Sukuna licked his lip where he bit him before he pulled back to look at Megumi curiously.

“Inside?”

“Yes, get inside me?” 

Megumi looked back at him, also confused before it struck him; Sukuna’s SexEd class wasn't very detailed if they could even call it that. It was your standard anatomy lesson for humans with a few terms like sperm and egg thrown around without much context. Though Megumi had thought the locals might have taught Sukuna more as part of his teachings, perhaps not. If Sukuna doesn't know basic sex, he most definitely doesn't know how to navigate it with another man.

Megumi chews his lip in worry, maybe he took on more than he realized allowing this passion to spark between them. Is he doing the right thing here? Should he have rejected Sukuna’s advancements? Is he taking advantage of his lack of experience?

He must get lost in thought because Sukuna is bringing their foreheads together again, “hey hey, what are you worrying so much about, huh? I can feel your thoughts spiraling, Megs” Sukuna looks at him with a tenderness he shouldn't be given, "I'm not a baby, you don't have to treat me like I'm fragile.” 

Megumi sighs, reeling his thoughts back in, "I'm sorry, you're right, maybe we should stick to just the frotting for now,” he suggests though his arousal had taken a dip from his worries.

“No, Megumi, I want to do everything with you, I just need you to show me,” Sukuna says, like it's a fun new experiment they haven't tried yet. Which it is essentially. “Do male humans have secret anatomy I didn't know about?” Sukuna’s eyes light with curiosity once again, laced with a never ending lust towards the small scientist.

“Heh,” Megumi breaths out a laugh, “You could say that, but first we need lube”

“Tell me where” Sukuna’s ears perk up.

“In that cabinet where you were when I came in, there's tubes of glycerin, grab a couple of those.”

Sukuna nods and kisses the bridge of his nose before he leaves the comfortable space between Megumi’s legs. Only to be stopped quickly by his attached kuru. They both hiss at the tug and then laugh together at their oversight. 

Rather than detaching like a normal person, Sukuna comes back between Megumi’s knees and hoists him up to straddle Sukuna’s hips, wrapping his legs around his slim waist and crossing his ankles. Even with his arms outstretched to cling to Sukuna’s neck, he doesn't have to worry about falling because Sukuna is supporting him with his posterior set of arms, one hand giving a reassuring squeeze to his ass. Megumi rolls his eyes and grinds their hips once as repayment. 

While Sukuna is busy searching the cabinet, Megumi decides now is a good time to more closely examine Sukuna, more pointedly where he might be sensitive. With his position, he could reach Sukuna’s nipple or if he wanted to he could climb the man like a tree and nip at his throat. Both options were equally tempting. Too bad Sukuna finds the glycerin before he can decide.

As Sukuna carries him back to the exam table he does plant a few kisses to his chest and collar bone while pinching a blue nipple with his fingers, Sukuna grunts at his efforts and seems to enjoy it.

He sets him down on the table again and Megumi can feel a sense of anticipation growing between their connection.

Oh this is going to be hot! Megumi is going to have to coach Sukuna through this part and he’d be lying if he said that somehow didn't affect him. The thought alone has him resisting arching into Sukuna. Megumi leans back and pulls Sukuna with him, the hybrid happily leans over Megumi’s body, casting him in his shadow, allowing Megumi to glimpse the glowing freckles all across Sukuna’s skin. He wants to map them like stars, find all the patterns and constellations etched on his toned body. When he looks back into his sunset eyes he sees the undeniable want reflected in his blown pupils. Sukuna is taking him apart with just his gaze, studying every hair and freckle on his body the same as he was, tracing every rise and fall of his rib cage, every shape of shifting muscles, every available stretch of nakedness he can commit to memory, Megumi can feel it. This is indeed a good idea.

Megumi runs his hands down Sukuna’s arms, squeezing the biceps appreciatively, he then loosened his legs from Sukuna’s waist and bows his knees to really open all the way up for the large man over him. With a whisper, like this moment somehow needs to be more private, he says, “ Now who’s studying who?” He quirks a lip.

Sukuna returns the look, “You fascinate me, Fushiguro Megumi”

Megumi’s heart skips a beat in his chest. Sukuna feels it too.

He reaches his hands up to cup Sukuna’s face, his hands are so small in comparison to the man's massive size, one palm covering only a fraction off his soft blue cheek, one of Sukuna’s hands come up to do the same, cupping over Megumi’s hand and tilting his head slightly into the touch. How long has he been waiting for this kind of connection? How long has Megumi missed the signs?

“Now what?” Sukuna whispers between them.

“Oh! Right,” Megumi feels like he was dislodged from a trance, remembering they were in the middle of something more primal before getting lost in a tender moment. Megumi takes the tube of glycerin and spreads some onto his fingers, quietly showing Sukuna the honey-like substance and making him watch as he brings his fingers between his spread legs. Going past his dick, past his balls and leading his fingers and Sukuna’s attention to his fluttering hole. He spreads the lube around the entrance and experimentally dips one finger inside. Megumi hisses at the slight burn, he hasn’t used one of his toys on himself in a while, but he also moans at the stretch because he forgot how much he missed this feeling.

“Oh, I see now,” Sukuna gravels, watching Megumi rub the lubricant all around his entrance, he almost sounds like he’s growling in delight. Megumi is conflicted between moaning louder for Sukuna or being embarrassed about how turned on he is and willing to finger himself in front of him. He ups it to two fingers.

Megumi didn't realize he was squeezing his eyes shut until he felt Sukuna stop his wrist when he plunged his middle and ring finger into himself. Holding his fingers inside him while he makes intense eye contact with Sukuna is seriously doing something to his psyche and he wants to whimper at the notion. “May I?” Sukuna purrs, his smile showing his fangs as he slowly pumps Megumi’s wrist just a little. Megumi nods, unable to form words at the moment.

Sukuna slowly pulls Megumi’s fingers out of himself, without thinking too long, Sukuna licks the remaining lube off of Megumi’s digits, tongue dipping between them and fully removing the sweetened substance off of them. Megumi moans. Sukuna hums a “tastes sweet,” and then kisses the palm of Megumi’s hand before bringing his arm up over his head, another hand pulls up Megumi’s other arm, pinning both there with one of Sukuna’s. 

Sukuna then copies Megumi by putting the glycerin on his own fingers, coating two just like he did. Megumi gulps, one of Sukuna’s fingers is about as thick as two of his. So if Sukuna puts both fingers inside him, it’ll be like him fisting himself and he squirms at the thought. Sukuna peers a look at him, feeling his growing anticipation through the kuru, his look is curious and lustful, further amping Megumi up.

Sukuna first touches his lubed fingers to his taint, rubbing against the muscle there and feeling his balls jump at the close contact to his dick. Megumi sighs at his own sensitivity, and Sukuna presses further, completely fascinated in watching Megumi’s body react to him. Megumi can feel the little spike of satisfaction in Sukuna when he tugs on his balls a little bit and precum dribbles out of his cock. Finally, after an eternity of teasing, Sukuna presses a single finger tip to his waiting entrance.

Its thick, Megumi has to consciously prevent himself from clenching, as the digit proceeds further into him, he can feel the pressure in his guts as the finger goes past the first knuckle. Or was it the second? Megumi doesn't care, all he knows is that it feels amazing. All of a sudden, Sukuna curls his finger inside Megumi and his whole body lights up with pleasure. There it is.

The intense feeling makes both of them stop and pant. Sukuna felt it too to a degree,

“Oh Megumi” Sukuna groans,  he leans down to peck Megumi on the mouth, one hand holding his above his head while another slowly begins pumping his finger in and out of Megumi’s ass and the other two support his weight over Megumi over the table.

Sukuna watches Megumi’s face closely as he flicks his finger into his prostate on every couple of strokes. Watching as pleasure expands his pupils impossible wide every time and the mirrored effect it has in Sukuna’s eyes. They are in an incredibly pleasing feedback loop as Megumi can also distinctly feel Sukuna getting harder and harder the closer he gets.

“Okay oka- Sukuna!” Sukuna slows his finger but doesn't pull out, waiting for Megumi to catch his breath. “Fuck,” Megumi sighs, his legs twitch, encouraging him to keep going. He’s too close, he doesn't think he’s capable of coming three times in such a short time so he needs Sukuna to stretch him and get inside before he comes again.

“You’re close” Sukuna observes

“Yes” Megumi hums as his desire to grind down on Sukuna’s finger and finish slowly recedes. “Okay, I'm ready for two fingers, but try to not hit that spot again just yet.” Megumi coaches Sukuna who retrieves the lube again and re-applies an ample amount to his fingers and around Megumi’s hole.

“Focus on stretching, spread your fingers until there isn't much resistance.” Megumi sighs as he leans his head back, trying to focus himself on relaxing and not coming right away. Sukuna easily does as he’s told, moving and twisting his hand until he’s confident he’s done what Megumi wanted. While Megumi lets out soft noise after noise, Sukuna listens to every intake of breath and every soft moan.

Finally after a deliciously long time of stretching and massaging the area, Megumi feels ready to take at least one of Sukuna’s cocks. He feels loosened up in more ways than one. Sukuna had been gently twisting and spreading his fingers while also squeezing and rubbing where Megumi’s leg met his pelvis, relaxing his hips and back. Megumi is grateful for the pre-care aftercare already.

“Mmmhm, okay, are you ready?” Megumi mewled,

“Yes, Doctor Fushiguro” Sukuna purred, “Im ready”

Megumi would laugh if it didn't send a jolt of pleasure zipping through his stomach, “Fuck, what are you waiting for then?” Sukuna pulled his fingers out, a squelching pop sounded. Quickly like a new wave of energy was surging through them both, they moved into a better position. Megumi scooted himself all the way to the edge of the table while Sukuna applied more glycerin to the palm of his hand this time. Slathering it up and down his lower dick.

Without wasting any more time, Sukuna lined up the tip with Megumi’s hole. They both gasped as he entered. Slowly he pushed his twelve inch dick inside of Megumi, the purpled flared head popped inside, a wet sound burbling past as he slid further in. Megumi arched his back and moaned loudly, pushing his chest into Sukuna as he stopped about half way in. Sukuna leaned down and groaned into his ear, the hairs tickling his cheek.

“Oh, Fuck! Megumi, You feel so good” Sukuna growled through his pleasure, Megumi whimpered as Sukuna jerked forward, clearly wanting to chase more of the feeling, just to see what he’d do, Megumi clenched his sphincter hard around Sukuna, working his pelvic muscles to elicit a reaction. And a reaction he got; Sukuna thrust further in before pulling all the way back until the head was the only part remaining and then thrust back in about 2/3rds the entire length. The movement punched the breath from Megumi and with it a broken “Yes!” fell from his lips.

Sukuna kept whispering praises and groans into his ear while the kuru connection pulsed with intense need and pleasure, between that, Sukuna beating into his prostate, and the man's other dick gliding against his own in their combined mess on his stomach, he wasn't going to last very long and oh how he wished this could go on forever.

Megumi mewled louder and louder until Sukuna shut him up by claiming his lips again. There is nothing he can do to prevent himself from coming, the overwhelming pleasure and the position Sukuna has him in. He could not ask to be anywhere better in the universe.

Sukuna keeps plunging into his hole, the sheer size of his dick is bound to bruise his insides for weeks to come. But it feels so good, the flared head keeps catching on his spongy prostate and igniting the core of his belly. He’s going to come soon.

“Oh, Sukuna, Sukuna yes, please, Sukuna mhmm” he pants on each thrust, interchanging those same words in different orders. Sukuna keeps a brutal pace as he humps into Megumi over and over. Suddenly, when the pleasure seems to have reached its highest point, Megumi feels a liquid hot wetness cover his untouched dick. He breaks his kiss with Sukuna to look down between them. Sukuna’s stomach mouth has made a move. The tongue-like appendage inside the pseudo mouth has lapped out and coated over Megumi’s and Sukuna’s other dick, the moldable muscle curls around them together and a hot breath washes over them while Sukuna’s other cock still pumps inside of him.

Megumi has died and gone to Eywa, because the next thing he does is see a blinding white light.

He’s coming and it's more than he ever has before, semen is spurting out of the tunnel created by the pseudo tongue and it's clearly Megumi’s because Sukuna is still going. Pumping both cocks and tongue faster to catch up with Megumi. 

Megumi whimpers at the too much feeling thats startingt o build but thas when Sukuna’s movements stop. Then Megumi feels he hybrid’s cock convulse inside him as he comes. Hot gushing cum fills his insides and splurges out the sides, Megumi can feel it explode up his taint and balls, let alone the sheer amount that comes pooling out of the tongue tunnel. He’s going to need a serious shower after they've subsided their desperate horniness.

“Holy Fuck,” Sukuna curses as he finally lets Megumi’s hands go and he hangs his head against Megumi’s shoulder. Megumi can still feel him twitching as his orgasm slowly ebbs away like a receding tide. Megumi hisses when Sukuna slowly and delicately uncurls his abdominal tongue from their now spent dicks.

“Yeah, “ Megumi agrees and pants, he can't help the whine that escapes him when Sukuna removes the cock inside him, the head catches on his sensitive rim on its way out. The pressure in his stomach releases as all of that come dribbles out of his loosened hole.

“Hmmm, I like this look on you.”Sukuna comments while he leans back to take all of Megumi in, dragging his eyes from Megumi’s slack jawed expression, down his flushed chest, to his flaccid twitching dick and to his cum filled ass hole.

Megumi rolls his eyes adoringly, “ I didn't know you could do that,” he says while pointedly looking at his abdominal mouth, the tongue peeking back out and licking over would-be lips.

“I didn't either,” Sukuna admits. Megumi raises his brow when he looks back at him and they both laugh in disbelief.

Megumi plunks his head back on the table and takes note of his sore body. That was incredible. Sukuna regretfully detaches his kuru from Megumi’s head, the appendage returning to its dormant state and he leaves Megumi for a few seconds to retrieve a towel. The pleasurable buzz in his head ceases and Megumi feels like an extension of him is now missing. He pulls a leg up to release the tension in his lower back, placing a naked heel on the table. He tries not to think too hard about how his ass is on full display to the entrance of his lab. He couldn't really care about that right now.

Sukuna returns with a cloth and begins wiping the mess on his stomach first, cleaning up their shared spillage. Megumi closes his eyes and lets Sukuna work over him.

“You did amazing, Sukuna,” Megumi praises. “Mhmm” He’s met with a pair of lips, licking into his mouth and nipping at his bottom lip before being left with a tender peck on the mouth.

“There are more things.. I would like to try..with you, Megumi?” Sukuna whispers over his breath. Megumi makes eye contact with Sukuna, searching his beautiful eyes.

Megumi brings his hands up to dig into the hair around Sukuna’s braid, pulling their foreheads together so that he can't be too far away.

“Anything, I'll do it.” he states and Sukuna grins. Megumi may have been crazy but there is nowhere else he’d rather be.