Part One
Kancolle: The Multi Chronicles - Musashi and Yamato

Musashi groaned, sick to her stomach. The powerful battleship girl had never felt anything like this before. It was like she was seasick.

But she was a shipgirl! A human reincarnation of a battleship! She was born to be on the seas, so how could she be seasick?

She’d been hit by shells, struck by torpedoes, bombed by Abyssal planes, but the worst injuries to come out of any of her battles were concussions and torn clothing.

This was quite different. Perhaps it had something to do with her most recent battle. A battle to eliminate the Abyssal Research Princess.

Her island had been heavily fortified and protected. Not only was there a fleet of Ru-classbattleships, Ri-class cruisers, and I-class destroyers, but the island itself was equipped with shore batteries.

It had taken a full combined assault by the Japanese shipgirl forces fleet of carriers and battleships to completely neutralize the land-based guns. The battle had been an unmitigated success for the shipgirls, all enemy forces destroyed, in return for a few girls needing a few days in the repair baths, no losses.

Musashi, being the most powerful vessel fielded by the JMSDF, had obviously taken her fair share of hits, but her heavy armour protected her from most of the damage.

But as the fleet returned home, she had noticed what appeared to be a shell splinter embedded in her abdomen. This was rather strange, as Abyssal shell exploded on impact, and splinters typically didn’t have the energy left to get stuck in battleship grade armour.

Curious, she had shown it to Akashi, the shipgirl repair ship, who determined it was simply a shard of Abyssal steel, consistent with their 20-inch coastal guns. It was just a piece of metal, especially as all shipgirls were inoculated against Abyssal steel corruptive effects.

So if it was just a piece of harmless metal, why then did Musashi feel so terrible now, three hours later? It had got worse and worse over the hours, and now she felt as pathetic as a seal on land.

She had discarded her jacket, gloves and her heavy collar piece, and she lay on her bed, clutching her stomach and groaning, feeling so rotten that she couldn’t even find the strength to get up and go to the factory for Akashi’s help.

A sudden spasm within her, sent her rolling off the bed and onto the floor, crashing onto her front. In that moment, the sickness went away, relief washing over her, as if she hadn’t been sick at all. But as she pulled herself up into a kneeling position, she became aware of something else. A strange hot sensation in her breasts and crotch.

Without warning, a wave of pleasure struck her. She buckled and gasped as her body was instantly aroused, her pussy soaking her panties, and her nipples hardening, working their way through her sarashi and becoming exposed to the open air.

Gritting her teeth, Musashi panted like she was running a marathon. There was a great pressure in her groin, just above her pussy, and twin pressures in her tits, like something big wanted to get out.

At the same time, images flashed through her mind, images of her Admiral. It was no secret that most shipgirls had the hots for the Admiral that commanded them, even if said Admiral was female. Musashi’s Admiral was a man though, as manly a man as a man could get. So of course, this Musashi fancied him.

So why were these images of him getting progressively more feminine? And why was she getting more and more turned on by them?

...Ohhhh SHIT!

It seemed that whatever was affecting her, had grabbed her orientation, and was now twisting it, subverting it. Previously a stalwart straight, Musashi was suddenly now bisexual, with a femme preference. The boobs of this progressively more female Admiral were setting fireworks off in her head. The images showed pussy lips being spread apart, the false female Admiral presenting her most sacred place. Musashi shuddered as she was wracked with carnal desire.

“Noooo…,” she moaned, “Teitoku… Teitoku is the only one for me! I love him, I trust him!”

She fought back against the assault, projecting images of her Admiral, thinking about that time she had managed to glimpse his chiselled chest and abs. He was the perfect man for her. And, for a moment at least, it seemed like she was winning, her attraction for the man growing once again.

But the affliction renewed its offensive. Musashi shuddered and moaned as her body was wracked with pleasure and arousal, much stronger than before. The strange hot pressure in her crotch and breasts was growing more unbearable, and was joined by similar sensations below her arms and in the middle of her head, the latter in a perfect line that reached to her neck. It felt like her head wanted to split apart and expose her brain.

The images of the male Admiral she was projecting, were shattered by the renewed offensive, replaced once again by his female equivalent. But the false Admiral looked different now. Instead of resembling a female version of her Admiral, the woman now resembled someone else, resembling the one person on Earth Musashi trusted more than the Admiral…

... her own older sister, Yamato.

The arousal Musashi felt seeing these images, was overwhelming. She should have been, wantedto be disgusted at the thought of being turned on by her sistership. But some new part of her justified it. Light Cruiser Ooiwas in love with her sistership Kitakami, so why couldn’t this Musashi be in love her sistership?

The last logical part of Muashi weakly protested, trying to impress the Admirals face over the images of Yamato, but it was completely hopeless.

Her breath hitched and she sighed, as the last semblance of her heterosexuality vanished from her mind, leaving Musashi 100% lesbian. She would never have sex with a man now.

But still, she denied it.

‘This is a dream, falsehood,’she thought, ‘It’s an Abyssal weapon, none of this is real!’

The images that bombarded her disappeared, replaced by an apparition of Yamato. Now, Musashi really didn’t know if this was real or not, although she desperately hoped that Yamato had finally come back to their shared room, discovered her sisters distress, and would now be taking her to Akashi, to rid her of this godforsaken Abyssal weapon!

“Musashi,”the apparition spoke in a dreamy voice. Instantly, Musashi was focused completely on the voice, looking into the ghostly eyes of her false sister. She felt as if her destiny was about to be spoken.

“Musashi,”the ghostly Yamato spoke again, “I love you, Musashi. We’re meant to be together, Musashi, not just as sisters, but as lovers!”

Butterflies flew in Musashi’s stomach, and her chest felt tight. The words felt right, like they should have been spoken long ago. But she still meekly protested,

“Yamato Onee-sama, I love you too. But we are sisters! Our love is sororal, it should not go beyond that.”

Clearly, Musashi needed to be further convinced,

“Please Musashi, let’s be lovers, let us one day become wives! I want to have your babies, Musashi. I want them SO badly! Please grant me my wish dearest sister.”

The apparition vanished, and with that, the damage was done.

All of Musashi’s protests fizzled out, her mind finally convinced that this, was in fact, the right thing. The words the false Yamato had spoken were like gospel to the stricken shipgirl, as if the real Yamato had spoken those words to her. In fact, she was absolutely sure that this was what Yamato wanted.

“Yamato loves me,” she murmured, entranced, “She wants to be my lover, my wife… she wants my babies…” Her expression turned to that of pure joy and elation. Yamato wanted to have babies, and she wanted Musashito be the one to give them to her.

“Yamato!” she cried, “Yamato wants my babies! And I, Musashi, will give them to her!”

Musashi surrendered. And the process could finally reach its conclusion.

The sensations in her breasts, crotch, and armpits, until now just a pleasant warmth, became searing hot. The tingling line that seperated her head and neck into halves, became a splitting headache.

But Musashi felt no discomfort. Yamato wanted this, and Musashi was doing it for her. She was taking the first step to righting a wrong.

Her patch of pubic hair was absorbed back into her. The skin in her crotch, already a wonderful tanned brown, darkened further, becoming an almost jet black. It grew and sagged, an opening forming in the middle, preparing for the coming presence of something wonderful.

There was some discomfort caused by her panties, but she reached down and unhooked the little anchors that secured the side-ties. As the little piece of fabric fell to the floor, she told herself that she’d never wear underwear ever again. Not that she’d be able to, by the time she was done, not even the largest pair of mens boxers were going to hide the artillery she would be packing.

Another wave of pleasure washed over her, like a reward for finally allowing the best to happen. She arched her back and moaned loudly, thrusting her breasts forward. Her mighty mammaries took this as a sign, and rapidly expanded at least two cup-sizes.

Her sarashi, the bandage-like strips of cloth she used to support her breasts, were already strained by her bountiful bosom, but their sudden growth was too much for the sarashi to handle.

The prominent knot that held them all together, failed and released the gorgeous boobs to the cool air of the room. The heat within them burned even hotter, as new things formed inside, her nipples darkening to the same shade of black as between her legs.

They would not be nipples for very much longer, but currently all the energy was needed between her legs.

For there was now a mass of sagging, empty black skin hanging from her crotch, currently useless, but it would not so for long.

Gradually, with such a pleasant sensation that made her pussy gush, Musashi’s cock began pushing out of her body. First, the dark skin distended with the head, until about six inches out. It reached its limit and opened up, exposing the cock head to the air, the new feelings causing Musashi’s breath to hitch as it lifted up her skirt.

It kept growing and growing, a colossal pink and black tube as thick as her upper arm, the head flaring slightly, making the business end slightly wider than the rest of it.

This was not a human cock. It was animalistic, equine… a horsecock. The only type of cock that belonged on shipgirls. When it finally halted its growth, it had an ultimate length of 18.1 inches, 460mm of gorgeous horse member. It was only right that the length of her cock be the same as the caliber of her main battery.

She opened her eyes, and looked down, laying them upon her cock for the very first time. She was so proud of it, it was so beautiful. She removed her glasses and cast them aside, not just to see her cock properly, but also because she knew that if she kept them on, they’d get broken.

Yes, her cock was simply wonderful, but it was missing something.

Her balls. Her balls hadn’t dropped yet. What was she supposed to do without balls?! You can’t have a gorgeous horsecock without gorgeous horseballs! No balls meant no babies! And not only that, but she only had one cock! ONE!

“More…”she growled, her voice full of need and lust, “I want MORE!”

Her body could only oblige.

The dark flesh in her crotch being extending once again, another great rod of horseflesh pushing out of her crotch. She screamed in ecstasy as it reached full mast, the base rubbing deliciously on the base of its neighbour.

With her pair of horsecocks standing side-by-side, her grape-sized balls finally decided now was the time and dutifully dropped into the waiting scrotum. There, they each expanded up to the size of a coconut, stretching the sack nice and taut, no wrinkle in sight.

These balls would never hang down by her knees as a loose, sagging sack. They’d stay up between her legs in comfort. That being said, they still hung low enough to just kiss the floor beneath them.

Her pussy gushed, feeling the need to play catch-up. In a way that was not so dramatic, but just as gratuitous, Musashi’s clit duplicated, a ridge formed between the two little nubs, continuing right to the other end. Her singular snatch had become a pair, a fact that was cemented when her womb and ovaries duplicated as well. And not wanting to be left out, a second anus winked into existence.

There was now two of everything between her legs… and Musashi loved it. Her cocks throbbed, pulsing with every heartbeat, begging for release. She held back, knowing that soon enough she’d experience pure bliss. She just needed to wait for the rest of it to grow.

By this point, her nipples and areola had completely cast off their original purpose. Black and sagging, They weren’t nipples anymore. Now, they were sheathes, sheathes for morecocks.

A bizarre feeling filled Musashi’s chest. She moaned yet again as her former nipples filled out, extended, and birthed new horsecocks. They weren’t as large as her crotch mounted members, only being about a foot long and as thick as a can of deodorant, but they were no less sensitive, and no less functional either, as a pair of heavy balls dropped from beneath each of her new dicknipples.

Musashi sighed, the majority of her additions now complete, but there was still some way to go.

The heat below her arms peaked, bony growths forming and pushing out. They lengthened, forming a kink halfway, matching her tanned skin. The new lengths stopped growing as soon as they were as long as her arms, five smaller nubs forming on the extremity.

Yes. Extremity. That was the proper term for it. Because these lengths were new arms after all. And now Musashi had four slender, ravishing arms. She stared at them, wondering for a moment if she had double vision. Not yet, but very soon.

Finally, the changes came to a head. Literally.

At first, she was hesitant. Did she really want to go through with this last change? She’d never be able to out in public again If the last addition grew.

But then she thought about it. She had two of almost everything else. So it seemed obvious that she should have a second head. At least she’d be twice as smart.

She allowed it to happen, and the last change began to take form.

Her eyes closed as the splitting headache she’d had all this time really upped the ante. For the first time in the entire process, she felt real pain as new stuff began forming in her head.

After what felt like an eternity, Musashi’s head began to widen. Her thoughts couldn’t help but concentrate on the sound of new bone and flesh forming, the cracking sound of her nose bone duplicating.

Her neck similarly thickened, her spine cracking and splitting into two. The new skin on her widening head, was currently formless and flat, but it gradually began matching the contours of her head, gaining features and growing hair, until it reached the final act.

With a strange sucking sound, the two heads fully separated, the necks moving aside and finding their new places on her shoulders.

Musashi was now one mind, with two heads. Four arms adorned her sides, her gender completely new to the world: a true full-package futanari, no longer fully female, but not male enough to not be called ‘she’.

Gasping for air, she opened her eyes. She was stunned for a moment, processing the world through two new eyes and ears. Her breath rushed down two windpipes, twice as much hair flowed down two necks.

Finally, after all this time, she had reached her final form… at least for now. She sighed happily, biting her lips, as she thought of her potential future additions. More arms, tits, cocks, pussies, legs, maybe even more heads. Hell, she could possibly even create a complete clone of herself. All of it was so fucking enticing.

But what was most enticing right now, were the thoughts of finally granting Yamato’s wish. Images of Yamato flashed before Musashi’s eyes once again, but they were different this time.

She hummed with arousal as she noticed that the Yamato she was seeing, was just like her: transformed, two headed, four armed, equipped with powerful… cannons.

Musashi giggled as she imagined Yamato’s mouths licking her dicknipples, kissing the napes of her necks, their cocks and balls meeting in a frot.

Oh how she loved her sister. How she wished she were here to marvel at her glorious form. How she wished she could kiss her!

A thought hit her then. Yamato may not have been here to kiss… but this Musashi did have two heads now.

Uncertainly, but steadily, Musashi turned her heads to face each other. It was a very odd feeling, but it felt so right, especially when she locked eyes with herself.

It was strange to be the first person in history to look into your own eyes without using a mirror. Her four crimson orbs stared deeper into her soul than any mirror could afford to.

It was wonderful… and her faces were quite… alluring as well.

“Well,” She chuckled, “Not only am I love with Yamato Onee-sama,” she spoke with her left head,

“But I’m in love with myself,” she continued with her right, “Mmmmm, and why not, I look so good!”

Grunting, she stood up from the kneeling position she had fallen into all that time ago, and sat down heavily on her bed. She hummed at the touch of the cool fabric. It felt so good upon her ass cheeks, her twin pussies and her balls. But she was about to feel so much better than good.

Gently she took a hold of each of her four horsecocks into each of her hands. She savoured the thick, rock hard flesh of her manhoods, the natural ribbing just beneath the skin.

Pulling her hands back (a movement her cocks demanded she continue), she rubbed her three pairs of balls, sighing at their sensitivity, before pushing out and rubbing her cock heads, and plunging fingers into her urethras, slick with pre-cum.

Her body jolted, desperate she continue stroking herself. She could take no more of this. No more waiting! She had to jack off NOW!

Her wet pussies protested, demanding attention themselves, but Musashi knew what female orgasms felt like. She wanted to experience her first male orgasms, and she would be having four at once!

She began jacking off like her life depended on it. Her horsecocks felt so good, to finally have her hands moving up and down their entire lengths. They felt impossibly hard and filled to the brim with bliss.

She moved her heads together, her mouths meeting and She started kissing herself, feverishly, hungrily. Her eyes closed as she pretended one of her heads was Yamato.

She lost track of time as her heads filled with numerous scenarios between Yamato and herself. Images of her horsecocks penetrating Yamato’s twin pussies, Yamato’s mouths suckling on her dicknipples.

The pace she was jacking off at never faltered. In fact, it only got faster as she grew more confident and used to the somewhat awkward positions of her dicknipples.

A characteristic slapping sound filled permeated the room, mostly as her upper hands smacked into her breasts, the impacts rippling through the mighty mammaries and sending waves of pleasure through her spine

It felt like no time had passed when the pressure began to build in her crotch and breasts, as her balls began to clench. Her cocks were so hot, they could have been molten, the sharp sensations at the tips feeling almost like she needed to pee.

The pleasure was incredibly intense now, it hurt in a way. But she still refused to let up, continue her rapid wanking despite her cocks now wanting her to slow down.

Musashi shuddered as the pleasure wracked her body, the release so very close. But she needed one last thing. One final trigger to make her orgasm.

The bedroom door opened, and Yamato stepped in.

“Musashi,” she began, “Are you alright? I heard…” she trailed off, her eyes widening and jaw dropping at the sight before her.

Musashi’s own eyes shot open as she heard Yamato speak her name. It was so wondrous, so unexpected, that it pushed her over the edge.

Moaning into her mouths, her hips bucked and thrust as she finally climaxed. Her hands slammed down to the bases of her cocks as her balls completely clenched and tightened, the pleasure almost overwhelming.

Hot cum was practically fired from her dicks, drenching Yamato in girl cum. The older shipgirl stood and stared silently, as what looked like litres of cum were spat out from Musashi’s four huge cocks.

One string of it landed perfectly in her open mouth, coating her tongue. The flavour was intense, indescribable. It was so very delicious, that before she was aware of what had happened, she had unconsciously swallowed it all.

Her cheeks flushed when she realised what she’d done, her body starting to feel warm in response. Why did Musashi look so inviting, so delectable and sexy all of a sudden?

Despite the orgasm winging down, and her cocks no longer spraying hot girl cum everywhere, Musashi barely had time to bask in the afterglow. Still dripping copious amounts of cum, she pulled her heads apart, gasping for breath.

Eyes wide, she turned her gazes towards Yamato, seeing just how much cum was dripping off of her. A part of her was scared, scared that Yamato would be afraid of her, hate her, call her a freak.

But that wouldn’t be happening, for she noticed Yamato’s blush and her legs together. A strand of cum hanging from Yamato’s lips was wiped away by her tongue, as she licked off the cum from wherever she could reach.

Musashi grinned widely. Clearly her cum tasted good, Yamato couldn’t get enough of it, the older shipgirl whining pitifully when she ran out of cum to lick.

Standing up from the bed, she brought her left hands down to her still hard crotch rockets, coating them in cum, whilst she used her right hands to remove and discard her skirt. All she was wearing now were her thigh-highs and and remnants of her sarashi.

She licked the cum off her upper left hand with her left mouth, humming contentedly at the wonderful taste and the thick, creamy texture. The stuff tasted better than one of Mamiya’s parfait’s. It seemed that the food resupply shipgirl needed to change her recipe.

Continuing to seductively lick the cum off her hand, she put on a sultry smile with her other mouth, Musashi slowly approached her beloved sister, carressing her skin and dicknipples with her free right hands, hypnotizing Yamato.

“Yamato Onee-sama,” she spoke with both heads, her voices full of lust and carnal desire, “Why don’t you close the door? There’s so much I want to show you.”

Yamato obeyed. Why wouldn’t she? Musashi was her sister and lover, right? Her clothes suddenly felt incredibly restricting. She needed to get them off, soon!

All she managed to remove, was her rangefinder headband and chrysanthemum gorget, when Musashi pinned her against the door, the rock hard horsecocks pressing against her belly, horsecock dicknipples resting either side of her, brushing against her bare shoulders.

She squirmed as Musashi lifted up her lower left hand, still covered in delicious cum, offering it to Yamato’s hungry tongue.

“Don’t worry Onee-sama,” Musashi spoke in unison once more, “Musashi will deal with your clothes. You keep eating my cum, it will make you sexier.”

Yamato instantly began devouring the cum, leaving Musashi to remove Yamato’s clothes with her three remaining hands. 10 seconds later, Musashi’s hand was licked clean, and Yamato was down nothing but her thigh-high socks. Neither girl questioned the others speed, Magical Sparkly Shipgirl Bullshit followed them wherever they went.

Finally, Yamato hummed and moaned as her body shivered with a surge of ecstasy. Her breasts, now unbound from the shell caps she used a bra, swelled at least two cup-sizes. Her nipples and crotch darkened to a familiar shade of black, and two solid rods of horse flesh forced their way between the two girls bellies.

Her breathing hitched at the new sensations offered by her new cocks, her purple eyes rolling back as the bliss threatened to overwhelm her, her weight leaning heavily on the door behind her.

She could feel herself slipping into unconsciousness. But she wantedto feel this, so she fought to stay conscious. And she was so happy she did.

She began actively vocalising, moaning and groaning as her pussy and asshole duplicated, as her new arms stretched out of her body and grasped Musashi dicknipples, inviting a moan from the other girl.

Her balls dropped and rapidly expanded, signalling her breasts to birth her own dicknipples.

“Mu-Musashi Nee-chan?” Yamato’s voice wavered as her dicknipples reached full mast, and a pair of balls dropped from each of her breasts.

“Yes, Yamato Onee-sama?” Musashi replied, watching in awe as Yamato’s head visibly widened, her nose already copied.

“Wh-when… Hhnng!” Yamato whimpered as her head fully split apart, ending her transformation, and marked the start of her new existence.

Taking a moment to acclimatise to her new two-headedness, she began again, speaking in unison,

“When I’m done having your babies,” she locked her four purple eyes with Musashi’s four crimson orbs, a cute expression written across her faces, puppy dog eyes included, “Will you have my babies too?”

Musashi smiled widely, chuckling softly,

“Of course Yamato Onee-sama! What are sisters for?”

Yamato sighed, relieved, “Good. I’m glad.”

Her demeanor then changed, her faces emitting predatory smiles,

“What are you waiting for Musashi Chan?” She leaned forwards, pressing her mouths to Musashi’s outer ears, her bountiful dicknipple capped tits squeezing delightfully against her sisters own dicknippled boobs.

She spoke with low, husky whispers, “Fuck me!”

Musashi chuckled, “Fufufu, I thought you’d never ask!”