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Unfathomable - Complete	By : ColdSilence Category: Kingdom Hearts > Slash/Yaoi - Male/Male Views: 11975 -:- Recommendations : 1 -:- Currently Reading : 2
Disclaimer: All of the Kingdom Hearts franchise is copyright to Tetsuya Nomura and Disney. No money is made whatsoever from this publication.

Chapter List
- 12
- 13
- 14
Author: Cold Silence
E-Mail: writer.coldsilence@gmail.com
Pairings: Riku x Sora, some Sora x Kairi
Warnings: AU, Yaoi, Het, Mpreg, mer/human sex. Does that count as bestiality?
Special Note: I swear to god that this is the very last time that I write a non-human fic with Kingdom Hearts. This story is purely a bodice ripper. I did it for the tentacle sex. And to do Mpreg at least once. God save us all.

Unfathomable
-Final Chapter-

In Atlantica, the younglings that had been left behind were gathered in the palace. They were huddled around piles of bioluminescent algae that were hastily pooled together before the soldiers and citizens left to fight.

Sebastian and Flounder took care of the small mers by delivering food and soothing their worries. Many of them were vibrating with so much anxiety that the sand beneath them tremored.

“Der der,” clicked the crab as he tried to console one of the saddened children. “You ‘ave nouding t’ worry aboud. Da king and da prince will return vicdorious, an’ all da mer will be wid dem.”

“Y-yeah!” agreed Flounder. “Once they get the Trident, it’s gonna be like – bam!” He swam in a circle, trying to simulate hitting something with his short fins but mostly just spinning. “And wham! A-and they’ll definitely win.”

“But what if they don’t get the Trident?” asked one of the younglings. “What will happen then?”

Sebastian chuckled. “Dun worry. Da Trident 'as es own trudh. Do you know wad et is?”

The younglings leaned forwards in anticipation to learn the secret. Even Flounder swam a little closer in eagerness.

Sebastian drew into his tallest pose, as if he was going to say something profound “Da trudh es dat nouding es more impordan’ den family n’ de connecshions wid yo’ friends.”

“That’s it?” clicked a youngling in disbelief. “That’s what’s going to help them win?”

“What a load of sea cucumber,” added another mer.

Sebastian gave the children an annoyed look. “Why do you dink dat yer family es figding now? Es for all of you! Now. Let us pass da time wid some music.”

The younglings sang frustrated notes as the crustacean tapped a rock with his claw to signal the start of a song. Even so, they were willing to sing, if only to help ease their tension.

“Ah won, an’ a two,” clicked the crab, before bellowing happily, “Unda da Sea!”

“Under the Sea,” chimed the younglings in high and low tones that blended into a sweet chorus. “Under the Sea!”

Flounder swayed his body to the music, but occasionally looked through the carved windows of the palace in hopes of seeing everyone make it home.

{{———————————————–}}

By the time Terra made it to Noctis, the battle had reached its crescendo. The mers were caught by surprise when the lava flows began to shoot vertically from the sea floor, burning anything that came in contact with the hot liquid. There were serious injuries among the atlantians and their allies, as well as among the orca. Those left on the battlefield were disoriented from the carnage, and then a shaft of white light spat out of the palace caverns, making it appear as if the serpent head was belching a plume of power.

Everything was thrown into white relief, and then became silent. When the mers could see again, they discovered that the entire valley of Noctis was completely flattened. Instead of small hills, lava flows and signs of life, the terrain was smoothed over with white, glittering sand.

The orca were gone. Not a single mer with a black and white tail remained. The atlantians were stunned as they looked for the enemy but found no one. Then their searches turned to each other. They called for chosens, sisters, brothers, sons and daughters who had gone into battle and vanished in the aftermath. King Triton was among them, and he called for his missing Athena and his son’s family with frantic song.

Then, circles of light appeared on the sea floor. The sand tremored as more and more of them appeared, dotting the shaking landscape like polka dots. Harmonic sounds of power reverbed through the ocean as missing mer burst upwards from the iridescent pools in small vortexes that left them spinning. Songs of despair turned into pure joy as friends, relatives and allies appeared from the sand, perfectly intact even if they had been mortally wounded before.

King Triton caught his wife as she emerged from her own plume, and he swam her in a happy circle as they reunited.

“What has happened?” sang Athena in confusion.

“Take a look my queen,” answered Triton with a grin. He held her close as he gestured to the valley below. “We have won.”

Terra swam through the rejoicing mer, desperately searching for the one that mattered to him the most. The sand beneath him illuminated, and Aqua sprung forth with a note of confusion. She was immediately caught in a tight hug from her chosen.

“Terra–” she clicked in recognition, but that was all she was able to communicate before she was swept up in a deep kiss that left her cheeks turning purple.

The scavengers swam in circles around each other and the dolphins pealed in victory as they reunited. Everyone believed that the conflict was over since there was not a single orca in sight.

One final pool of light appeared, and from it emerged Sora and Riku. Unlike the others, they rose up as if billowed from a hidden fountain of water. They were holding each other’s hands as they arrived, perfectly healthy and healed from their wounds. The only exception was Riku’s hair - it remained shortened as it had been before the battle.

They were greeted with songs of praise and victory. The two mer looked at each other, and then Riku lifted the Trident over his head to confirm that yes, it was over now. A resounding chorus of triumph rippled through the crowd in answer.

“My boy,” sang Triton as he swam over with his wife. “Were you able to do this with the Trident? To think that you had this ability! Its power has not been used in this way for an unthinkable amount of cycles. You are a natural!”

“I can’t take the credit,” clicked Riku quietly. “It asked me what I wished for, and I answered.”

“Then it was the right answer.” Triton rested his hand on his son’s shoulder in a proud way. “The Trident doesn’t blindly follow anyone’s command. I could barely use it to light the chamber I was in when I was your size.”

“Is this the carrier of my grandson?” interrupted Athena.

Sora had been intently listening to Riku and Triton’s conversation, and was surprised to be addressed by the redheaded mer. It took a few moments to realize that she sang 'grandson,’ which meant that she was the grandmother, which meant that she was the queen. He made a strangled note as he hastily moved into a bow. “Y-yes, that’s me!” he sang with embarrassment.

Athena placed her hands on the human’s face and lifted him out of his bow. She gave him a serious look, one that lasted for several uncomfortable moments. Sora met her gaze quietly, knowing that he was being judged for everything that he was. Even though he was far from perfect, he was okay with this. He could understand where she was coming from as a parent.

The queen finally released his face and gave her final assessment. “I like your eyes. They are strong from experience, but kind with understanding. You have chosen well, Riku.”

The prince was relieved when there was no comment about Sora’s drab tail, but he was uncertain about how to respond to his mother. He didn’t regret choosing his human, but that didn’t change the fact that he had yet to be chosen in return. “He’s the kind of fish that never gives up,” he sang fondly.

Sora felt sheepish underneath everyone’s attention. Then he looked around and frowned when he couldn’t see what he was searching for. “Where’s Ventus?”

The happy expression on Riku’s face changed immediately. “You don’t know where he is?”

A concerned look crossed the grandparent’s faces. All four of them broke apart to look for the missing youngling. They canvased the entire valley, but their efforts were fruitless. Terra and Aqua eventually joined the search, but sadly even Nemo was unable to catch a scent.

“Why are we doing this the hard way?” asked Triton. “Riku, call to him with the Trident. We can get this done before the next cycle.”

The prince had forgotten all about the mythical weapon. He raised it up and commanded it to bring him his son, but nothing happened. It didn’t even twinkle in response. “Why now,” he clicked in frustration.

“It’s because you are an amateur,” sang Triton. “Let the old mer take a gander at it.” Upon receiving the Trident from Riku, the king also attempted to compel it to find their grandson. The weapon glowed briefly, but nothing happened.

Athena gave her husband an amused look. “This is the result of an expert?”

King Triton flared his gills and passed the Trident back to Riku. “It seems that it has presently used up all of its energy.”

Riku received the useless weapon with a frown. He thought that its power was limitless.

“I have an idea,” sang Sora. There was an inspired expression on his face as he started swimming away from the group.

“What’s your idea?” asked the prince. He darted after his chosen, who was heading outside of the former kingdom of Noctis.

Queen Athena and the sirens moved as if to follow as well, however they were stalled by a gesture of Triton’s hand. “Wait a moment,” sang the king. “I believe that the Trident is going to teach my son one more lesson.”

“What sort of lesson?” asked Aqua curiously.

“Possibly the most important one of his life,” clicked Triton knowingly.

{{———————————————–}}

As soon as Sora left the battlegrounds, he diverted his swim to ascend upwards.

“Sora,” clicked Riku in alarm. “Where are you going?”

“To the surface,” he explained. “My dad’s boat has really strong listening equipment. If I use it, I think I can hear Ventus if he’s singing.”

His suggestion was met with silence. Sora rolled his body to look back, and found that Riku had stopped swimming. The prince was holding the Trident in his hands with an unhappy expression.

Sora knew what the problem was. His gills flared with frustration at the fact that the mer was going to be stubborn about letting him go to the surface world now, of all times. “Riku, you have to let me go! Our son is out there. You can’t keep me trapped in the ocean like this. I’m not your pet, I deserve better than this!”

“If you could have kept me like a pet back when we first met, would you have done it?” sang Riku quietly.

Sora was stunned by the question. The answer to it was even worse. Yes, he would have kept Riku to himself if he could. In that respect, they were no different. But… “I wouldn’t now,” sang Sora. “The person that I was back then is gone. That stupid kid who just wanted to sleep with anything just to feel good about himself is not here anymore. You are the father of my son. I respect you and I care for you, but I need to have those things too. Don’t you think I’m worth at least that much?”

“Yes,” sang Riku quietly. “You’re worth that, and more. The problem is not you. It’s that I didn’t believe that I could be without you. I couldn’t see my life without you beside me. But now I realize I’ll be okay. Even if you go to the surface world and never come back, I know I can survive. I have my family and friends beside me.”

The water became silent between them. A crossroads had just opened up and neither knew which direction to go.

“Sora,” sang Riku, his notes filled with emotion. “I wish I could take back so many things that I did to you. I’m going to spend the rest of my life thinking about how I messed up. But even with all that, I still think that we can have something. We can be happy, if we just let it.”

The prince lowered the Trident so that its tines pointed at his mate. A soft light illuminated from it and spread towards the other mer. Sora was surrounded in a glowing bubble that made his body vanish from view. A hot sensation ripped down the middle of his tail, and in the next instant, he was shooting upwards towards the surface world.

{{———————————————–}}

Sora gasped. Air filled his lungs, and his chest felt open and light in a way that it hadn’t in ages. He found himself beached on a sand bank, and he used his hands to push himself off the ground. The feeling of joints on the lower half of his body bending to support his weight made a sound of pure joy escape his lips.

Legs. He had legs again. He touched everything below his waist, feeling skin, light hairs and bones where they should be. Warm tears sprang into his eyes, and finally he could cry for all the times that he couldn’t while he was trapped under the ocean.

He didn’t know how long he spent rocking and hugging himself. It was dark outside with only the light of the crescent moon illuminating from above. When he wiped his face and looked around, he easily recognized the beach. It was the same one where he grew up and had all of his adventures. There was a city close to it where his old friends and parents could still be living.

Then he remembered Ventus and his purpose for being here. Sora shored up all of his strength and stood up. Something seemed off when he got to this feet, and it took a few moments to realize what it was. He was taller than he was before. There was no mirror to confirm this, but he felt like his limbs were longer and his body wider than the time he left.

  Was I gone that long?

Anxiety welled up as he thought of how old he could be and what that meant if he were to return to the human world. How much did he miss? Was it too late for him to go back? Was his father’s boat even still there anymore?

  Now is not the time, he told himself. Sora forced those thoughts out of his head and he rushed to the docks. His legs carried him over the cool sand, and he felt an exhilaration as he ran, completely naked and happy to feel the wind in his hair and against his skin. A nostalgic feeling filled him as he passed the wooden docks, which were haunted with memories of his family, friends, and the days when he first met Riku and Kairi.

Desperation filled him when he reached the marina. He hurried to the slip where his father parked his research vessel and let out a loud “Yes!” when he saw it there. He immediately jumped aboard and climbed up the ladder to the bridge, and pulled the door open.

Everything looked the way he remembered it. He hurried to the dashboard and felt beneath it until his fingers bumped into a metal box that was magnetized to the console. It was pulled out and opened, revealing the boat keys.

  You never changed, he thought as he held the keys to his chest. Thank you.

He checked the gauges and was relieved to see that the gas tank was full. Then he hit the power button to start warming up the engines and rushed back down the ladder to free the boat from the moorings. The ropes felt heavy and familiar in his hands, and he went through the act of releasing them from the bollards in the fastest way possible.

When he started winching the lines back in, he felt like he was being watched. He looked towards the moon dappled docks to see if anyone was there. The sound of the heavy ropes being secured on the spool stopped as he froze.

There was a man standing there. He had a long, scraggly beard and a sallow face, but those features didn’t fool Sora. He recognized his father.

They stared at each other in shock. Everything that he wanted to know about what happened when he was gone was answered in a glance. His father mourned him. His father missed him. His father still loved him. And he was still waiting for him to come home.

Tears fell from Sora’s eyes. The boat was already adrift, and the gap between himself and the man on the docks widened. His father stepped forwards to stop him, but he couldn’t let that happen.

“I’m sorry!” Sora called brokenly. For all the times that he took his family for granted when he was young, he was so sorry. He abandoned trying to put the lines in properly and climbed the ladder back to the bridge. He could hear his father calling out to him by name, and he didn’t dare look back as he jammed the key into the ignition and made the motors come to life. He took the engine out of neutral and eased the throttle forwards. The boat pulled away from the marina and drowned his father’s pleas with the sound of churning water and heavy machinery.

  I’ll come back someday, he silently promised. The boat sped off into the darkness, and he kept wiping his eyes in an effort to see clearly. Guilt was clawing at his heart but he couldn’t fall apart now. Ventus needed him.

Everything looked the same out on the surface. The ocean stretched on endlessly without a single landmark in sight. Sora hoped that he would still have a sense of what was beneath the waters, but his human body did not have that ability. He turned on the radar in hopes of getting a better idea of what was under him and bit his lip. The equipment could only do so much; it was inferior to the senses available to the mer.

“Sora!” called a breathy voice.

His heart came into his throat upon recognizing who that was. Sora idled the engines and turned on the flood lights. Then he leaned out of the back of the bridge, and after some squinting, spotted what he was looking for. Riku was in the water, waving back to him.

“Here!” called the mer. The prince dived into the water, only to resurface a few meters away.

  Of course, thought Sora with relief. They could use Riku’s abilities to find the place where Ventus was last seen. He went back to the bridge and eased the engines back to full power. Together, they crossed the ocean in search of their missing son.

The mer eventually came to a stop and pointed downwards. Sora nodded, and he weighed anchor to make the boat stay put. All of the engines were turned off, and soon the night was filled with the muted noise of water lapping against the vessel. The delicate sound equipment was lowered into the depths as the prince silently looked on.

Sora placed the headphones over his ears. The smell of them reminded him of his father, and he remembered all those weekends that he begrudgingly spent out on the ocean with him. Back then he thought it was a waste of time, but now he could look back and understand that his dad wanted to spend time with him. To know him and love him in his own way, even if he was too stubborn and headstrong to realize it.

Now that he was a father, he understood it all. With that sort of feeling, he closed his eyes and listened.

  Come on Ven. Call to me.

The sounds of the underwater world filled his ears. Despite losing his sense of direction, Sora was relieved to know that he could still understand the conversations of the ocean. The whales were traveling back to their home, a nearby pod of dolphins were complaining that the water was too cold; all idle chatter that didn’t matter at the moment. He used the dials to change frequencies, listening intently.

Sunrise began to color the world. Beautiful pinks, oranges and yellows stained the sky. Riku waited in the water, his expression pensive and worried. Everything he remembered of the surface world was still the same. Its beauty, its adventure. The infinite amount of possibility. He stole the finest treasure that he could find from that place, and now the time had come to give it back. As the morning stretched on, he came to terms with this.

It was close to noontime before the miracle happened. Sora’s fingers paused. His brow furrowed as he listened intently. He heard a faint song, one full of sadness and longing. It called to him in a way that no other melody could. A breath of joy rushed out of him. The headphones were pushed off his head and he hurried down the ladder from the bridge. Then he stepped onto the starboard edge of the boat and dived into the water.

The Trident glowed. Riku didn’t have time to think before power lanced from it and surrounded Sora’s figure. It circled the human’s body, causing it to fade into silhouette before reemerging in the form of a mer with a burst of bubbles.

“Found him!” sang Sora with urgency. “He’s this way!”

The prince was stunned. Sora’s tail was a beautiful gradient of blue, with scales that flashed silver along their edges. Delicate dorsal fins shaped like thin dragonfly wings spread out from his back and beat against the water to add to his speed. His arms were textured with white ghost marks in the shapes of scales that never erupted, leading all the way to his shoulders and down his back.

  Finally, Riku thought as he followed. At last, Sora had found a way to love himself again.

{{———————————————–}}

Ventus vibrated loudly with emotion. Lea had taken him to a small community that was filled with other striped mers. They lived in a cliff side that was guarded with poisonous anemone. The smell of flora was so thick that nothing would be able to track them there. The older mer ensured that his ward would make it past the natural barrier without getting hurt, and now they were waiting for news in a cave.

“Hey, don’t be that way,” Lea sang in an attempt to console the youngling. “No matter what happens, I’ll protect you.” He petted Ventus’s drifting hair and hoped that things would turn out okay. He felt responsible for getting the poor guy into this mess.

“Ven! Ven!!”

Upon hearing the unfamiliar voices, Lea swam to the entrance of the cave. His fins puffed up as he nervously prepared to fend off whoever came to take Ven away.

“Dad!!!”

He wasn’t prepared for the small green rocket that burst past him and went tearing through the anemone in the direction of the voices. It was all Lea could do to lift his hand uselessly as Ventus sped by. “Wait, Ven - you’ll get stung!”

No heed was taken to the warning. Ventus burst through the anemone covered cave and swam into Sora’s waiting arms. They collided together, filling the ocean with a song of joy as they went adrift.

“I was so scared!” Ventus clicked as he held onto his carrier, his small claws digging into the other’s scales. “I thought I was never going to see you again!”

“That will never happen,” Sora sang as he held onto his son with a smile. “You’re all mine, little fish.”

Riku floated close and circled his arms around them both. His smile was relieved, but something bittersweet pulled at the edges. “It wouldn’t be much of a turning party without you in it.”

Ventus twisted around so that he could also hold Riku, his expression practically blissful. Sora exchanged a look with his mate, realizing that the jig was up concerning the surprise party that was going to be thrown for their son. He knew that the prince was holding back his feelings on that matter for their son’s sake, and that made him nervous.

“What happened?” asked Lea as he floated close. He was staring at Sora as if he had grown a second tail. “Did King Xehanort use the Trident to turn you into an atlantian mer?”

“What?” For the first time, Sora looked down on himself and realized that he was different. He turned his body sharply because he sincerely thought that it was someone else’s tail that was attached to him for a moment. “Oh no, did I get even uglier?”

Riku sang an amused note at Sora’s reaction. Ventus looked at his carrier and sang stubbornly, “You’re not ugly!”

“No, he’s not ugly,” agreed Riku. “Let’s go back home.”

“You might want to take this,” sang Lea. He reached into his satchel and pulled out a wad of sea leaves that were weaved together. “He went right through the anemone, he’s going to need medicine.”

“Thanks,” clicked Riku as he took the leaves from the young mer. “For this, and for taking care of him when we couldn’t.”

“Yeah, you owe me!” sang Lea with a flaring of his striped dorsal fins. “In return, I want a promise that I can still be Ven’s friend. I don’t care if he’s human or a royal. Those things don’t matter, right Ven?”

Ventus turned pleading eyes to his parents. Sora rubbed the back of his head. “I don’t see why not.”

“It’s true that those things don’t matter,” relented Riku. “Just don’t push your luck on it.” With that, he led his family away. Ventus waved to Lea, who returned the gesture with a happy one of his own.

{{———————————————–}}

Ven was treated for the sting marks on his body as they swam back to Atlantica. He barely kept still as Sora dabbed at the welts forming on his scales with the medicated sea leaves. Their son wanted to know everything about what happened, but he was given only vague answers in return. His parents didn’t want to tell him too much about the adult world, at least not until they had a private moment to discuss it with each other.

Thankfully, when they arrived at their kingdom, another distractor was waiting for the youngling. Light returned to the darkened waters the moment they swam back into the city, and as the curtain of shadows lifted, it was revealed that every mer was waiting for them with joyful expressions on their faces. Among them was the King and Queen, and fifteen beautiful mermaids who sang “Surprise!” and fluttered their dorsal fins upon seeing the family arrive.

Ventus was so shocked that he hid behind Sora. “Who are they?” he clicked nervously.

Sora smiled in amusement as he answered, “Your aunts.”

“All of them?” sang Ventus in disbelief.

“All of them,” confirmed Riku.

“Wow.” Ventus slowly swam out from behind his carrier to look at all those mermaids. “They’re all mine.. my family is so big!”

When he saw his son’s joy, Riku realized why Sora risked speaking to his father behind his back. There were some things parents could give their children, and some things that they could not. He had not seen his sisters for what seemed an endless amount of cycles, and as they surrounded his family, he felt an empty part of himself starting to fill.

Ventus wasn’t the only one who needed this.

{{———————————————–}}

The celebration was seemingly endless. When it was finally over, Triton extended an open invitation for the prince and his family to return to the palace. Riku politely declined, but promised that he would visit. As a show of good faith, the Trident was returned to his father for safe keeping.

By the time they returned to the cave, Ventus was completely spent. He had to be carried home because he became too tired to swim. The stings that he acquired from swimming so recklessly through the anemone were turning red, and Riku was tending to them with more medicated leaves.

They were together in the main room of their cave. Sora was resting on the sandy floor with his tail stretched out and his torso leaned against one of the smoothed rocks that made up their furniture. He lazily watched Riku float with Ventus. Every time he dabbed at a welt, their son would murmur sleepily from the pain and the prince would sooth him with gentle notes.

Riku was a lot of things, but seeing him as a concerned father made Sora willing to forgive the bad. He always thought that the prince was a beautiful creature, but in the moment, even without his long hair, he found a kind of beauty in him that would have taken his breath away if he had any to give.

Riku disappeared momentarily into Ventus’s bedchambers so he could lay his son to rest. Upon returning, he floated to where Sora was, and for a few moments, they just looked at each other.

Their intent gazing was interrupted when something pink crept into the corner of Sora’s vision. He clicked a note of surprise and tried to bat away at the slim, prehensile tendril that was wiggling upwards. “What is that!” he sang in bewilderment.

Riku’s eyes rounded as he beheld the tendril, and he followed its long, slender length down to where it originated from Sora’s scales. A huge grin stretched his cheeks as he vibrated with mirth.

“What’s so funny?” demanded Sora. He kept trying to edge away from the unfamiliar appendage, which he could only identify as some kind of huge worm, or worse, a parasite.

Riku doubled over with his laughter, his cheeks coloring purple. It took a long time before he was finally to regain his composure enough to speak. “Sora… that’s you.”

“Me?!”

“Yes!”

Sora looked at the strange thing again, noting its sleek and smoothed texture. He followed it down, finally understanding that it was attached to him. A few moments later, it finally clicked. “Oh my – is that my…. that is my… it’s so long.”

“I actually wasn’t sure if you had one of these things,” sang Riku. He swam close to Sora so he could reach out and stroke his fingertips up the top half of the stalk.

“What’s that supposed to mean,” sang Sora in flat notes. Anything else he wanted to express was forgotten when his member was touched. An aching pleasure traveled from the tip of his appendage down into his tail, leaving him dazed. His newfound cock began to creep around Riku’s body, circling him in a deliberate way.

“I think it likes me,” sang Riku playfully. He found the confused yet piqued expression on Sora’s face to be so attractive. His chosen really didn’t know anything about his own body at all. He longed to be the one to show him everything. To be who his human looked to for guidance and intimacy.

“I’m sorry, I don’t know how to control it,” began Sora.

The rest of what he was going to say was silenced by Riku’s fingers on his lips. There was a pleading expression on the prince’s face, and Sora knew that whatever was going to happen next was going to be something genuine and heartfelt, and he felt a tense excitement rising in anticipation of it.

Riku pressed a soft kiss to Sora’s mouth, and then he floated back, but not far enough to break contact with Sora’s tendril. He turned his body in a lazy circle, letting his scales and skin brush over every inch of his mate’s cock in an erotic dance. The prince vibrated with a quiet, almost shy song of an intense, deep love that he would give up his world for.

They had been together so many times before, but this was the first that Sora felt Riku’s vulnerability instead of his ego. It was no secret that the fragileness existed, but to actually have it displayed before him in such a show of trust had his mouth slack with disbelief.

This Riku who was so open, this Riku who could so easily be hurt. Sora had been trying to reach that person for so long. There was so much he wanted to say to him, and now that the moment was here, it was all he could do but be enthralled by him.

The prince used his claws to slice through the thin membrane that held the scales down over his most intimate area. He lifted the loose pieces up, revealing the puckered entrance to his channel. Then he sang one, single note that made every last vestige of hesitation and control completely vanish from Sora’s mind:

“Please.”

Everything that happened afterwards was purely instinctual, and Sora would never know if he responded to Riku as a mer or as a human in a mer’s body. His member ceased to become an alien thing, it was suddenly a part of him that he knew how to control and right now he wanted nothing more than to use it to make his mate say nothing but sweet things for the rest of his life. It surged towards that opening with single-minded intent, pushing past initial resistance before diving down into his tail. The mer’s voice pitched with pleasure and the sound alone satisfied every resentment ever felt towards him.

Sora swam around the prince’s body to unravel his member from where it had looped around the other’s tail and held his lover close. Every inch of him entered until they were flush against each together. His gills flared open, and he could feel water rushing through them as Riku’s body contracted around his cock and milked the water back out. The greedy desperation of it made him feel masculine and powerful, and he unconsciously spread his dorsal fins outwards in display of his prowess.

The pleasure was absolute; the only difference was that he controlled when it began and when it ended. Sora realized that Riku must have felt that way every time he dominated him. Now that the roles were reversed, so many emotions went into every gush of semen that he pumped into his mate’s tail. He wanted to cherish him, he wanted to subdue him, he wanted to protect him, he wanted to punish him. All his feelings about their relationship poured forth in a cloud of cum that filled the mer to the brim and engorged his tail.

Sora didn’t stop until he felt the catharsis of his emotions and had his fill of his own pleasure. He didn’t know how long that took, only that Riku was completely passed out by the end. He carefully rested the prince on the sandy floor and returned his member to its waiting place in his own tail. Then he embraced his mate and silently thanked him for giving him this moment.

Even though Riku never sang a word, Sora had heard his pleading loud and clear: Pick me. Please.

No one had ever wanted him that way. No one. Kairi had wanted him for a moment, but Riku wanted him for a lifetime. It was a humbling, beautiful thing.

{{———————————————–}}

When Riku finally opened his eyes, he found himself wrapped up in Sora’s tail. His face was against his mate’s shoulder, and he could feel the other’s fingers stroking the nape of his neck. It was odd but strangely titillating to feel something touching a bare place that had previously been covered with hair.

“I heard what you wished from the Trident,” sang Sora quietly.

Riku could barely move his tail. He felt spent. The prince didn’t so much as lift his head as he asked, “Did I make a mistake?”

Sora was quiet a few moments before answering, “When you told the Trident, 'I want everyone to be safe,’ you didn’t just mean the atlantians and all our friends, did you. You wanted that for the orcas too. Why?”

“Because they have families too,” clicked the prince in a simple way.

Sora gave a soft, wistful smile. “I bet the Trident sent them really far away. But they’ll come back, won’t they.”

“Yeah,” answered Riku quietly.

Every orca on their side of the sea had vanished. Even Vanitas was gone from where he was being held. The ocean was a large, vast place, but they would be fooling themselves if they thought that their enemies would just forget everything and move on.

Another thought occurred to Sora, and he asked carefully, “Aren’t you worried about becoming pregnant?”

“I’ll gladly carry your egg for you,” clicked Riku without hesitation.

Sora’s cheeks purpled with that declaration. “You would do that?”

“I would do anything for you,” sang Riku. “But it will probably never happen. It’s very hard for the seed to take with two male mers. The fact that it even happened at all with Ven is because you were human at the time. He might be all we ever have.”

“But Braig –” the moment that Sora started to sing, he realized how stupid he sounded. Of course Braig had lied to him in order to draw him away from Atlantica. He couldn’t believe how foolish he had been to fall for it. “I’m so stupid. I should have just asked you about it.”

“You didn’t want another egg, did you.”

Sora didn’t answer. It felt cruel to say anything. They both knew that if another egg was laid, then he would have to stay in the ocean longer, and he still didn’t want that.

Riku’s gills flared in a sigh. “I promise that from now on, I won’t stop you from being who you are.”

A hopeful feeling bloomed within Sora. Was Riku saying what he thought he was saying? “And I promise that I’ll trust you from now on. No more going behind your back.”

The prince smiled, feeling both happy and sad.

All that was left was one last decision.

{{———————————————–}}

Dawn painted the skies in vibrant golds and pinks. The water was calm at the surface world, and it lazily lapped at the shoreline in small waves. It was disturbed by a small pool of energy that whirled about fifteen feet from the breakers.

The water broke as Sora calmly rose up from the depths. His hair instantly dried the moment he broke the surface, as did the rest of his body as he walked to the beach. He was wearing a simple white shirt, and as he approached the shoreline, it was revealed that he also had matching pants and his legs. Ventus was in his arms, dressed in the same exact way. His son was twisting with excitement, and as soon as they were on dry land, he was placed on the ground so he could try his new legs for the first time.

Ventus wobbled at first, and he clung onto Sora’s hands to keep from falling. However, the moment he took his first step, and then the second, he let go of his carrier and began to walk. He gave a shout of glee, and then he covered his mouth when he heard an air filled voice instead of a mer’s song.

Sora smiled with pride at his son’s first steps. It was a bit late, considering that he looked to be around six years old, but that was alright.

A splash made him turn to look behind him. Riku was emerging from the water, walking as if he was trying to keep his balance on top of a moving circus ball. Sora laughed as he reached out to help steady the poor guy before he fell.

“It’s like having two tails, and they don’t want to listen to each other,” complained Riku as he leaned heavily against the human. His voice was an attractive tenor, and Sora found himself longing to hear him speak again.

“You just have to get used to it,” answered Sora. He looked in Ventus’s direction, and found that his son was running in the sand with his arms outstretched and yelling at the top of his lungs with childish glee. “Ven already has the hang of it.”

“He gets it from you,” said Riku dryly. He looked down at his own body, and then over at Sora. The last time his chosen was human, it was hard to see what he had become in the darkness. Now it was obvious that he was an adult. The prince knew that it was his fault that he had stolen that time from him, but he didn’t feel remorse. Every moment, both the good and the bad, had been amazing for him.

Sora found Riku staring, and he asked tentatively, “You sure you want to do this?”

Riku looked at Ven, and he answered resolutely, “Yes. I don’t want to be the kind of father who is only there from afar. I want Ven to know that I’m always there.”

“My mom and dad are in for one heck of a story,” said Sora wistfully.

They decided that Ventus was safest in the human world. Until the orcas gave up their ambitions, they had to protect the future king of Atlantica. It was also necessary that humans begin to understand that the mer existed. Their worlds were growing closer and closer every day, and it was only a matter of time until they collided, just as it had for the two of them. It was Sora’s hope that his father would know how to bridge that gap, after he got over the shock of what happened to his son.

“Am I an ugly human?” asked Riku.

Sora made a sound that was halfway through a laugh and a snort. No matter what form they were in, Riku was always Riku. With all of his vanity and stubbornness, his love and desperate need to connect, it was all the same. He made a show of eying the prince’s body, which was still a perfect porcelain white. His short, silver hair reflected the sunlight, and his eyes were as blue as the ocean. His body was unfairly chiseled, and when Sora looked down, he was dismayed to find that even his toes looked perfect. He was probably really hung too.

“Eh. You’ll do,” was his final assessment.

He patted Riku’s head affectionately and then helped him to walk along the sand. Ventus happily ran ahead of them, enjoying the wonders of his new body and the amazement of being on the surface world. A rainbow appeared in the sky, and they looked back towards the ocean. Hundreds of mer had broken the surface, and they smacked the water with their tails and waved goodbye to the prince and his family. King Triton and his wife were there, as were all of Riku’s sisters. Sebastian was standing on Flounder’s head, looking as if he would cry if he could. The dolphins pealed loudly and blew air through their air holes. Terra and Aqua held on to each other as they waved, their smiles bright. Namine was nodding in encouragement. Lea stayed close to the shoreline, unable to speak but expressing so much to Ventus with just his green eyes.

They waved back to them all, and Sora found that for all that it was, he was going to miss life in the ocean.

  Kairi,

  It’s been a while since I last thought of you. I hope that you find the same thing that I did. There’s a kind of love out there that changes you for the better. It’s not always fun, and takes a lot of work and time. You have to sacrifice so much. You can’t just leave it behind and start over with someone else, not without losing a piece of yourself. If you can stick with it though, you get strong in ways you never knew you could. All you need is faith and trust in each other. I just hope that you don’t make my mistake and have a kid first. Not that I regret him, I just wish that I had my life together so I could give him the best of his. But I think it’s going to be alright.

Riku was starting to walk better, although he had to look down at the ground constantly to make sure one foot was going in front of the other. Sora smiled at him. “So what’s a chosen ceremony like?” he asked.

This question surprised Riku enough that he stumbled. He looked at Sora askance. “Why are you asking?”

“Just curious,” he answered evasively, but still smiling.

Sora would give him a little more time to prove that he was a better mer. He had learned to be patient and wait for good things. Riku had a lot of giving to do to make up for the taking that he had done, but he was already forgiven because he was loved.

Even if the prince didn’t realize it, Sora couldn’t help falling for the way he loved their son, the way he steadfastly raised him above everything else no matter how ugly he became or how others felt about him, and the way he continued to stay by his side when he could have picked an easier life with someone else. It made him want to give the prince another chance and see how they could grow together.

When he was done testing Riku in the human world, Sora would grant him his greatest wish, and choose him. After all, there was no higher form of love’s expression, than to chose forever.

The End

Author’s Note

Can you believe that it’s been ten years since I started this fanfiction? I stopped writing it halfway because I went through a lot of life changes that made me forget this story. Then Kingdom Hearts 3 came out, and I was watching a lot of Paternity Court, and suddenly the inspiration for this story came back.

Writing this last half the story was a pretty solitary experience. I realize that in the time that passed, a lot of my original readers are gone. They are obviously a lot older, and some might even have kids of their own. Maybe in the traditional way with marriage before children, and probably some in the not so traditional fashion. But a family is a family, no matter what it looks like or how it moves. If those people ever find this story again, I hope that your lives have gone well and that you still find some enjoyment in my silly fanfictions.

I originally wrote this because I wanted to tackle some difficult things in fanfiction, including erotic relationships, MPREG and the kind of loves that come from a difficult place. I think that finishing this story ten years after I first started it helped to shape the shifting perspective in this fic. I really do wonder if the first half of this fic reflects the immaturity of the couple and probably my own immaturity as a person, and how that changed in the last half when I wrote it as a much older adult.

Not that I will ever stop writing erotic stories! The next one will probably be the worse one yet, if I ever get around to writing it. Thank you for reading Unfathomable, I hope that you enjoyed it!
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