Content Warning: This story contains Body Horror and Sexual Content but not at the same time.
Yu had received a report from Solaris United that a young man wielding a strange sword had fell out of a black void rupture on Valis. There had been many of these ruptures with strange infested that seemed to be resistant to damage like the Sentients but scans did not show any damage adaptation biological or tech based. After Narmer and the Zairiman's return they knew they needed to figure out how to stop these ruptures. They transferred into a Loki so they could better sneak close to the new rupture and investigate. When they landed on Orb Valis they saw the man in a red cryosuit fighting along side another man who had a stranger cryosuit with golden accents and they were easily dispatching these strange humanoid infested. "Riku, have you ever been to this world?" they heard the man in the cryosuit say. Maybe they were Dax but Yu had never seen Dax around their age. "No, but since we defeated Xenehnort the darkness has dispersed pretty far."Said the golden cryosuit. Yu crept closer and saw another void rupture open behind the pair. They leapt to intercept but realized they needed more distance, calling on the void they projected themselves through the creatures that flooded from the rupture. As they did a cold wave seemed to flow down into the depth of their soul and then they lost consciousness.
When they came to they were shocked to see that they were surrounded by the Ventkids and the two strangers in cryosuits. Since they had removed the hood of their suits Yu saw that they were both very attractive. The shorter one looked like any other middle class subject of the Orokin with their brown hair clipped back sweeping gold ornaments and glistening aqua lip gloss on their full lips. The other who must have called Riku had his long white hair in a ponytail with one of the Corpus hair ties that they mass produced and his lips were bare of anything save a hint of aqua that Yu could easily guess the source of. "How did I get here" asked Yu groggy. "Well, Sora insisted that you get princess carried back here when Boom and the others came to help." Riku said pointing to the beautiful brunette. "I mean why would I leave them to die after they risked their life to save my boyfriend." yelled Sora as he jumped up his cheeks starting to grow red as Mapricos. "You two are from somewhere else aren't you?" asked Yu. "How can you tell that?" asked Riku. "You came from Void ruptures and fight with weapons that didn't exist for the entire time of the Orokin. " Said Yu getting up but something felt off. They tried to use Transference to get back to the ship but couldn't feel any connection out. This started them to panic as without going back to the ship they were cut off from their hormonal pump. Then they realized something their suit had seemed smaller and when they looked down they realized their chest had grown. "How long was I out?" they asked. "We carried in here just 4-ish hours ago" Sora said. Yu started to cry tears of joy. They had been trying to sneak and keep their violet Kuva pump running since they saw how they could be if they started becoming themselves. "Yeah, somehow your heart turned this into your body."Said Riku.
"What, do you mean this isn't my body?" Said Yu getting confused.
"It's really complicated Riku figured it out but I don't really get it."
"Sora, I had to tell you that we were dating after our fifth date."teased Riku.
"You promised Kairi you wouldn't bring that up,"whined Sora "and I thought you only liked me as a friend."
"We introduced each other as partners for weeks." Said Riku. Yu heart crept up their throat as they looked at the way Riku's muscles made the cryosuit ripple. "So you two are dating?"asked Yu embarrassed by how sheepish their voice sounded. They looked around and realized that the Ventkids had left awhile ago.
"I guess we didn't introduce ourselves, I am Riku.."
"And I am his boyfriend, Sora."
Sora stuck out his tongue which made Yu giggle. "You two are really cute together, I'm jealous and you can call me Yu."
"We should probably deal with those Heartless," said Riku "Is there any super evil power obsessed person in this world you can think of Yu." Yu began to go through all the people in the Origin System that the Tenno hadn't put out of commission that week and sighed heavily. The only one who had the resources to do this much damage without the Queens or the Corpus Board catching wind was Alad V. "Yeah let me call Ordis to get us to Deimos." Said Yu. They got one of the Solaris to loan them some tools to get the com out of the Loki's flesh since once again they didn't have access to their frames.
"Operator, did you lose your Tenno magic again." Said the cheerful voice of the Cephalon Ordis when they came aboard. "Yeah Ordis, but it should be back soon but, can you not report this to Natah I have a feeling our new friends will be better than calling in everyone." Said Yu as they went to their Transference chamber and checked their other body. It was still there sleeping peacefully. "You look different in person." Said Riku. "I wish I didn't ,let's stop this idiot and also don't go in the door on the right I haven't feed him in a bit." Said Yu as the lights flickered angrily. Yu set Riku and Sora up in the personal chambers as Ordis set the jump to Alad V's ship. "So what are those blades you fight with?" asked Yu. "They are Keyblades, weapons formed from the power of our hearts and the most effective way to kill Heartless..,umm those creatures we were fighting."Said Sora. "Can you loan me one when we land I kind of don't want you two to get hurt fighting them and the infested since this is better for them " Yu said presenting a Sirrico they had modified in case someone broke into the back of the ship. Riku gave Yu a Oathkeeper and summoned Oblivion. "Hopefully you won't have to deal with this long" he said smiling a little. "Oh my God, you are so sweet Riku." Said Sora.
"Don't say anything Sora."
"But you two would be soooo cute together."
"I don't even know if they would be interested."
"Just ask, it's not like we can never come back."
"You guys actually think I'm cute" interrupted Yu. "Of course you are, you and your body in the back room." blurted out Sora leading to Riku and Yu to turn the same shade of red. "Sora, my love you know you just lost coffee privileges for a week." Said Riku in a voice that was just barely audible. "If the operator and guests are done trying to fornicate flirting we have reached the airlock of Alad V's lab freighter." came Ordis voice over the intercom. "Ordis I will factory reset you I swear." yelled Yu throwing a pillow in the direction of the speaker. After quickly standing up they rushed over to the ship airlock and boarded the freighter. The entrance of the ship was eerily quiet. There was only a sound like a distant waterfall that seemed to be getting closer. The trio prepared their keyblades and crept toward the sound. The moist fleshy walls pulsed like the throat of a great beast eliciting a muttering about Monstro from Sora. Centipede like Maggots scurried around them as if having better things to do than assimilate them into the Infestation and still the sound grew closer and louder. When they reached the loading bay the noise was near deafening and on the far wall they saw the many billion eyes of the Demontide rush down the wall and sweep Yu away in a black wave of many legs. Sora leapt after soaring through the air thanks to the lack of artifical gravity and slashed at the Tide causing it to release Yu. Riku jumped to guard Sora's back as Yu took shots at the Infested that seemed to have been awakened by the commotion. "How do you like my new acquisition Betrayer" came the voice of Alad V over the intercom."Alad, do you ever get tired of me kicking your ass from Mercury to the Void." yelled Yu. "Who did you betray?"asked Sora crushing an especially zit covered Heartless. "I'll tell you when we go on a date." Shot back Yu meaning to be sarcastic but it came out a little bit hopeful. "Me, you, and Riku on a date deal." Said Sora shooting ribbons of light that vaporized the Heartless Infested on the left. Yu felt so much blood rush through their body they just jumped corkscrew at the Demontide and ran straight to where they knew the command room was most likely. While they feverishly worked to hack the door Sora and Riku caught up. "If you aren't interested then you can just say no." Riku said after catching his breath. "No talk, kill badman, kiss both of your stupid faces." mumbled Yu trying to line up the wires for the door. The wires finally cooperated and the door slid open to reveal a mass of flesh and wires with the face of Alad V. His hulking form was not the best for fighting in the somewhat confined room. The void pistol had almost no effect so Yu holster the useless metal and worked with Sora and Riku to cut the mass of flesh tentacles. One grabbed Sora by the leg and one wrapped around Yu's waist dragging them towards the main body. "You will make a most interesting research subjects." Said Alad his voice wet and strained. "Nobody lays a hand on my boyfriends." yelled Riku slicing clean through the tentacles and freeing them. Then as Sora turned slicing the head of the beast Alad spit a jet of acid that began to eat through Riku's suit. With a gurgle a mass of crystalline hearts flowed from Alad's throat as the flesh began to flow like melted wax into the vents leaving a weakened Alad V. He pressed a small button on his wrist and alarms began to sound as the ship began a self-destruct countdown. Yu just turned on their heel and began to switch their mask to deal with the vacuum of space. Sora and Riku followed behind as they made their way to the evacuation point Ordis picked. They climbed aboard as the ship exploded behind them through the open airlock they watched a small vessel fly deeper into the asteroid belt toward distant Jupiter. "Will he be okay" asked Sora as they ran into the Personal Quarters. "Yeah and Riku could you maybe call me your girlfriend next time"said Yu as they ripped the upper part of the melting suit. Without the suit somewhat masking it Riku's lean muscles glistened with sweat. "There is a God above." Said Yu almost choking on their own tongue. "So are we going to just hang out here for our first date." Sora said placing an arm on Yu's shoulder. "Oh yeah, the three of us, on a date, together in my room, I am so stupid."Said Yu starting to hyperventilate. "It's fine I know you were joking back there Riku explained it to me when you ran away."Said Sora blushing lightly. "Only a little, I would be happy to try dating all of us together if you want."Said Yu getting all the courage they could. "Yes, do you mind if I play your guitar while you and Riku clean up you two are gross I'll clean up later." he said and then Sora bolted out the door and up the ramp.
Riku and Yu moved over to the shower with Yu guiding the way. In the cramped shower Riku locked his soft lips onto Yu's which yielded like marshmallows as the water ran over them. Riku's hard arms pulled Yu closer still their bodies threatening to join together as one. Yu's lips moved down to Riku's chin gliding down his strong jawline into his neck. Tasting the sweet sweat they nipped Riku's neck wanting all that he could give them and they could give him. "I want you." was whispered neither could say who but it was mutual. They didn't wait to dry as they moved to the futon that was already pulled out. Sora must have done this. Riku thought as he laid Yu down their legs rising to lock onto Riku's waist sturdy as a tree. Riku's thin fingers glided over Yu's neck over their shoulders making Yu gasp and purr with pleasure. Every inch Riku touched was ignited with lightning. "Is it fine if I come down?"Sora asked still dripping from the shower he must have taken. "Yes, it's our bed tonight "Said Yu reaching a hand out for Sora. With one hand Sora sent the pleasure more vibrant than a supernova through Yu as he rolled his hand over their breast and Riku moved to catch the escaping gasp with his mouth. Hands, lips, and members joined in the dance of of ecstasy until Riku slowly slid into Yu. Only one thought, one word, More as he began to fill them. Riku let out a shuddering gasp as Sora entered him. More gasp as Riku began to move sending waves of love through Yu's body, no their bodies. The breaths grow sharper,shallower as hearts beat like drums of war. Faster. He can feel his mind swim. They are swimming their hearts joining in rhythm and purpose. They release their love in series first Riku then Sora and Finally Yu. They don't want to stop Riku and Sora move like beast possessed sending wave after wave through Yu as they climb higher and higher. More Love. Finally when they can climb no higher Riku and Sora collapse on either side of Yu and the trio fall into joyous sleep.
When Yu wakes they walk and stand before their pod. Lift their hand in which appears a ornate golden key and thrust the tip into their own chest they open their eyes and see themselves in the pod and one standing outside. They go to wake their boyfriends who they now can stand beside as fellow Keyblade Warriors.