AN: Smutty... Again, corruption... OoC.
AN: I can't promise I will continue this... But, here you go...

Pilot:

Ever since Naruto had the mission in the Land of Waves, he felt something calling towards the waters. Naruto had ignored it for a while now, but the voice insisted on his mind, echoing, convincing him to go to the dark waters in the Naka River. He had enough, he needed to know what the hell the voice wanted from him.

Naruto was moving towards the Naka River, the single river that comes through Konoha. The river is located on the land where the Uchiha clan once lived and prospered, some say this river was damned and haunted by the souls of those murdered in Uchiha's massacre.

Naruto was at the edge of a cliff, looking down at the waters, the voice coming out was a rising vibrato, a pulsing, a singing, a siren song that wrapped and coiled around. Naruto was paralyzed as he stared down at the waters below him. Something about the voice kept him staring, almost pulling him forward off the rocky edge. His toes curled around the edge of the cliff, conscious enough to stop himself from falling forward.

{Come to me… Be with me… Feel the warm water wash around you...} The whispers echoed between his ears, reverberating around his brain itself.

The haunting melody entwined around his body. For who could possess such an ethereal voice? The song kept going, high then low. Almost like the tides rising and falling. Mixed in was the sound of the waves crashing against the rocks. The waters reaching the rocks in a way that brought a moan from his lips. Naruto moved down through the hill, moving towards the chore.

Naruto saw the waters running in the river, the waters were thick almost oily. The smell was strange, earthy and musky, putrid and sweet, and very potent. It almost made Naruto dizzy to smell it, but as he was trying to recover from the fumes. The song changed, becoming more hopeful, more yearning, and when Naruto touched the waters, he was trapped and pulled into the river. The thick, gooey water came up around Naruto. It was as warm as bath water, glowing red, and it slipped over his skin like liquid silk. He felt his clothes get warmer than his skin, warmer still until the fabric started to dissolve into the water, leaving him naked.

Naruto was struggling to get back to the surface, seaweed slipped around his wrists and ankles, pulling him deeper to the bottom of the river. In a bed of skulls from those killed in the Uchiha's massacre. In between his legs, there was a sword. It was large, longer than Naruto's height. The actual blade is comprised from a series of downward-facing scales running along the entirety of its length until its hilt.

- "What's this sword?" Naruto wondered as he saw it.

There was an oily thick substance, almost black coming out from sword. The thick fluid was taking shape in front him, first humanoid, until then it was gaining a feminine shape, the bare skin of her breasts exposed to the waters. The creature moaned as she gripped her breasts, while her taut stomach and shapely thighs continued next. One hand was gripping and tweaking her breasts while the other was down, covering her crotch.

- "What?" Naruto thought.

She then dropped to her knees, completely exhausted. She gasped before she began cackling evilly, finally she had him in front of her. Naruto saw her eyes flared like violet stars and her black hair coming down her body. She smiled, as she then moved rapidly towards him. Her body was on top of him, pressing her breasts to his chest. Suddenly, she kissed him, forcing Naruto's lips open with her tongue, but instead of liquid, air spilled in, filling Naruto's lungs. Her nimble fingers caressed his loins. She pushed more air into Naruto's lungs before breaking the kiss...

- "Ahh... " Naruto moaned, feeling her nimble fingers caressing below.

Naruto looked into her entrancing violet eyes, Naruto wished to speak, but he could not, so instead he thought out loud: "Who are you...?"

- "Samehada," she said. "I'm a sentient sword, and we connected long ago," she said.

Flashes appeared in his mind, Naruto saw moments of dark impulses that he never acted on, when he wished to hit harder his opponents, when he felt like biting them off. Naruto hold back kicking and punching those who despise him for having a demon inside. The thoughts were intoxicating as they attempt to take the responsibility and duty from him, eroding away as pleasure and rebellion were presented to him.

- "I can help you made the move, make you stronger," Samehada squirmed against him, fidgeting, loving to get to know the human that was so like her.

Once more, Samehada kissed him, her powerful tongue slipping in, dancing with Naruto's, filling his lungs back up before pressing their foreheads together again. Naruto was aroused at the connection, realizing that when the kiss broke, he felt again so alone, and the connection was the most wonderful, embracing feeling that he'd ever felt.

Naruto groaned as he felt himself slip away, bombarded by feeling her solf flesh writhe on top of him. Samehada moaned as she ground her hips down on his crotch. Naruto's hands broke free from the seaweed as they found her globes, and he squeezed them. Her skin was intoxicating, urging him to squeeze and suck every bit of her.

Samehada broke their connection long enough to nuzzle his lips. Naruto exhaled, bubbles emerging from his lips. Samehada moved over to his ears to whisper: "Do you want us to be together?"

- "Yes..." Naruto's voice was frayed and hoarse.

- "You shall take my hilt and come inside me..." Samehada smiled wickedly, rejoicing in his decision to become one.

Naruto moved his hand from her curves and then he reached the hilt behind her head. The feeling was instantaneous, spikes pierced through his hand, and inside him, trapping his hand to the hilt.

- "Ahgg..." Naruto moaned in pain.

- "We won't be apart," Samehada when she mounted him, and finally impaled herself on him. Both moaned. Samehada smirked as she felt him jutting up to meet her, now a willing wielder.

Samehada kissed him once again, pushing air into his longs, as their bodies undulated, twisting, and turning like snakes, becoming one flesh. Samehada took more of him.

- "Do something, bastard, it is pulling me, pulling us apart..." Kurama was agonizing, the thick and slick water sloshed across him, Samehada was sucking the chakra out, but then replacing it with a mysterious shade.

In the mixed euphoria of pain and pleasure, Naruto almost didn't notice the changes in his chest cavity. The burning had continued to spread outward from his lungs, making it all the way to his ribs. Furious red gashes split through his skin, three on each side of his ribs. The gashes spread open to reveal the soft meat of gills. The new organs began to shift water back and forth across the membranes and Naruto felt the weight of drowning starting to disappear. He could breathe again, though he was breathing water.

{Those air breathers are flesh to eat, souls to devour and chakra to suck dry} Samehada said.

Naruto's jaw hung open to reveal teeth that turned into spears all the way around, from front to back, but wasn't enough. Bumps formed along his gums as new teeth formed a new row beneath.

{These teeth are better suited for the task} Samehada whispered.

Naruto panted harder, breathing more water. Samehada's hands moved around his head, his blond hair was dissolving in the water. His head was forming spikes angled back and away from his head. The central rows of spikes forming along his skull curved around, growing seamlessly into the like that ran down his neck and spines.

Naruto's skin began to toughen up, taking on a purple color, as then scales spread across his shoulders. Some of the scales were like armor plates while others were small and tight. The scales were exactly like the Samehada's. The muscles between Naruto's shoulders and his neck grew tighter, becoming ribbed and scaled. More spikes pushed out of the back of his neck.

{You shall be strong to carry me}

Naruto's biceps and triceps bulged with new muscle, reinforced but as white as his throat before the scales started on his forearms with vengeance. As his arms drifted, his fingers stretched out, gaining the curve of claws. The skin between his fingers grew together, and finally thick, long claws emerged from the back of his arms, curving towards his elbow before they were webbed together.

Purple scales covered the sides of his body, his pale pectorals became brigther as they turned white as his throat. His nipples stretched and flattened, losing all color until they disappeared into the leathery skin. His abs began to expand and swell, fusing in the center. New layers of scales started slipping down from his pecs, covering his stomach in interlocking rectangular armor plates.

{Wielder, a bit more} Samehada said before picking up the pace.

Naruto's back arched as he felt the bones moving beneath his skin, stretching down along his spine, pushing and pushing at his skin before it started to stretch freely. The skin erupted like a fountain of flesh, a tail growing out of his backside. The flesh formed a shark tail, they had sharp edges. The tail was moving and swishing to hard that the seaweed did the best to keep it from moving.

Naruto's body twitched and steamed. Scales formed around his legs and feet in perfect harmony. In a few moments his toes had grown longer than his fingers, the flesh between stretched out into long flippers tipped with deadly talons. Naruto fluttered in the water, his limbs treading just a bit.

Samehada leaned over her new lover, her new wielder in exhausted bliss. Her heavy breasts squishing softly into his chest. Samehada cut the kiss, as she saw his eyes, they were particularly glassy and black, now alight with malice, and she flashed a devilish grin. Nonetheless, his face remained intact, even with his cheek marks.

- "Ahgg..." Naruto moaned as he felt a dorsal fin forming on his back.

{It's over, you have given up to me...} Samehada whispered, before she disappeared into the sword. {However, now there is so much to do...}

- "I can't wait..." Naruto smirked.

{We must find the other two wielders, do you remember them?} The thoughts rushed as memories flashed.

The thought excited him, memories came back: Kubikiribocho, the decapitating carving knife. Naruto thought he had known it, but its presence has not been revealed yet, not to Zabuza. The wielder typically gets blessed with the fire of hell. Lastly, the third sword has not been wielded by any one in long time. A whip sword, its wielder is granted the charms and deceive, they get blessed by its poisonous venom.

{Among the three, we have reigned to protect the Mizukage, our leader, but she has been dormant}

Naruto's mind was flashed with memories of past fights, his muscles wriggled as he was remembering how to fight. Naruto was the leader of three, and among all, they have conquered, feast, and reached the ends of the world to collect the tailed beasts in order to reincarnate the past Mizukage. Naruto's mind collected her figure, her eyes burned red. Dark red ran between her body.

{So much to accomplish...} Samehada said before Naruto fell asleep in a hazy dream.

(To be continued)