[Bimbofication, Twinning]

“Saaaaay, Admiral? What’s this big thing you’ve got?”

I-26, one of the subs that had been transferred to the naval base swayed her hips back and forth as she looked at the big machine in the back of the room, her rabbit-like ears twitching as her eyes neglected to even look towards her short-statured Admiral. Something that he didn’t seem to be very pleased about.

“That… That’s a retrofitting station, if the documents I have here are correct.” The young black-haired Admiral, Murakami Iehisa, muttered as he started shuffling some papers around on his desk. The way that the submarine girl looked straight over him didn’t really help his lack of confidence. “I don’t know why they’d send me one, considering we barely see any action…”

His words went practically unheard as the young girl skipped around his desk, pushing her face up against the machinery with a big old grin on her face. “Can I try it? I wanna see if I can get even better at sinking Sirens!” The tanned gal asked, turning around to face towards him for once.

She didn’t immediately receive an answer, as the boy was busy reading through the actual letter portion of the documents. Just looking at it gave him the chills, especially as he noticed who had sent it in the first place.

Fleet Admiral Otomo Tsubaki. A woman known for her… difficult personality. Something that he had witnessed first hand when she tore into him for failing to properly accommodate for his girls.

“To Murakami Iehisa.

Given that your base has lagged behind in performance, and due to the appearance of certain difficult ship girls at your command, I’ve given you the chance to make things right. Once you’ve received this letter, a retrofitting station will be installed in your office. Just push one of those difficult girls inside, and they’ll never bother you again.

I will give you this one warning. Use it with caution. I was told that it could potentially harm human bodies, but I know you’re too much of a worrywart to actually get involved.

Signed

Fleet Admiral Otomo Tsubaki”

The words that she used in that letter were foreboding first of all, and insulting just the same. It indicated that she still had no faith in him, regardless of his attempts to show improvements. A sentiment that she shared with a fair amount of his own fleet, most of the girls lacking any proper respect towards him.

“Aaaaadmiral. Earth to Admiral! Can I try the retrofitting machine?” I-26 waved her hand in front of the young man’s face, her ears twitching as she bounced back and forth. She was filled with energy, and the longer he denied her, the more impatient she’d get. A self-perpetuating cycle for sure.

Iehisa let out a bit of a yelp as he finally snapped back to reality, dropping the papers on the table as he whipped around to face her. Given what he had just read, there was no way that he could morally allow himself to use it. No matter how troublesome his girls were, and how little they cared about him.

“Absolutely not!” He cried out, getting up from his chair as he pointed towards it. “The fleet admiral sent it to me to deal with troublesome girls, not girls like you, I-26! You’ve done a lot of good for this base, and… and..!”

She just looked at him with a sly expression on her face. “More good than you have, Admiral.” She cheekily chimed, taking a couple of steps towards the machine. “Besides, troublesome girls? You sure that she’d send you something to deal with those? Sounds like it’s just a big prank, you know, like the kind I’d pull with my torpedos!”

“N-No! She’s never about to joke about that stuff! She’s always serious, no matter how joking her words may seem! You’re in danger if you go in there, honest!” Iehisa didn’t want to back down, no matter how little respect he got. He didn’t want to be the one to… He didn’t want to let his girls, the ones he considered his friends, get turned into something unrecognizable!

He quickly stepped between the machine and the girl, putting his arms out in a defensive manner. “You’re not going inside, and that’s an order..! Please listen to me for once!” He tried to sound as firm as he could, but his immature voice and the way the tears were starting to build in the corners of his eyes didn’t help. At all.

“You’re no fun, Admiral. What’s even in there? Usually, it takes Akashi a couple of days to properly retrofit us with all of the materials and cash you give her. I wanna see how this thing does it!” I-26 continued to ignore his pleas as she tried to push past him, even as the door to the machine started opening. Her determination and curiosity against his instinct to protect her…

The two pushed against one another, their panting and gasping growing in intensity as they each put as much power as they could into their bullheaded decision making… Until Iehisa’s feet gave way, letting the submarine girl push her way into the machine, taking him with her in the process.

“Can’t you take a hint, Admiral? When a girl wants something, you’re gonna have to let her!” The tanned girl chimed as she got back up, the doors shutting behind her as she looked around the inside of the machine, giggling a little even though she just trampled all over his feelings.

The Admiral sighed as he put his hat back on, adjusting it as he looked around as well. The inside of the machine looked surprisingly bare, making it hard to understand how it operated. Maybe it sprayed them down with something? Maybe arms popped out and pulled at their bodies until they had been…

His thoughts were rudely cut off as a loud siren echoed throughout the mechanical chamber. “SHIPGIRL LIFEFORM DETECTED. INITIATING RETROFITTING PROCESS. INTENDED RESULT: BIMBO” It cried out loudly in full english, making it hard for either of the two to understand it.

Little by little, the chamber filled with gas. A pink-colored gas that seemed rather heavy as it quickly sunk to the bottom, covering both the brown-skinned submarine girl and the admiral, causing them both to cough as it seeped straight into their lungs. It wasn’t very pleasant, to say the least. Which was to be expected, considering that it had been arranged by the cruel Fleet Admiral…

“Hey, Admiral? You said this was retrofitting, yeah? Why’s it trying to drown us in gas?” The tanned submarine girl coughed amongst the sharp intakes, gasping as she tried to breathe in some sort of clean air. To no avail, of course.

Iehisa didn’t know the answer to the question, and he frankly couldn’t focus on it either. His body felt like it was burning up the more the gas seeped into him, whether it was through his nostrils or his mouth, or straight through his skin. In fact, he noticed something quite peculiar as he held up his arm to try and shield his face from it all…

His arm had begun to tan. To the exact same hue as the bunny eared girl, leaving him a little bewildered. More so as his clothes were affected by the gas as well, changing in shape until he looked like he was wearing the exact same outfit as the submarine girl. A swimsuit with a litlte decorative collar that showed off so much of his body that he couldn’t help but feel embarrassed.

“Whoa! You look just like me now, Admiral! Except, you know, there’s that thing down below.” I-26 chimed as she reached over to grab his arms, admiring how smooth they were. Just like hers. In fact, it was like the two were twins, besides the thing that actually separated their genders.

And even then, that wouldn’t remain for long. As soon as the submarine girl went to reach down and touch his family jewels, both of them were surprised to feel it all smooth. In fact, that first touch sent such a shock through the poor Admiral that he fell onto his knees, completely floored by the new sensations reaching their way into his brain.

“W-What happened? Wh-where is it? Where’s… Where’s my…” The boy muttered as he reached down himself, trying to grab at his crotch in sheer disbelief. But no, there was not a single trace left of his private area. Just a flat surface divided by a single line, just like the pussy of a proper girl.

Poor Iehisa had been transformed into a girl that looked identical to I-26. Down to the bunny ears that popped out of his head as his hair took on the same dark-brown hue as hers. They were like twins now. If he had to make a farfetched guess, it was because the machine couldn’t handle two different shipgirls at once, so it had to make them identical before it would continue its conversion process. That was nice to know for the future, at least…

“Ehehe, you know, Admiral, you’re much cuter like this. Now we’re like a pair of twins! I bet we can play a lot of pranks, especially if you soak up all the attention!” The original tanned girl chimed as she wrapped her arms around her newly converted twin, lifting her back up onto her feet in the process.

As much as the Admiral wanted all of this to be over, especially now that he had to call himself a she due to this radical shift in her physical traits, it wasn’t even close. The machine had called for the two to end up as bimbos, and they were still far from filling that criteria.

The gas around them got denser as it started sinking further into their bodies, sending shocks of pleasure throughout. Both of their minds fogged up as their eyes grew dim, making it harder and harder to think. The exact conditions that would make it easy for them to be changed and manipulated by the machinery.

“W-Whoa… M-My mind’s all… cloudy…” Iehisa muttered as she reached up to rub her head… Which felt really nice, actually. Rubbing herself felt like a ton of small shocks pouring their way through her body, and it got even better as she reached down to play with some of the more naughty areas.

I-26 wasn’t far behind, though she had felt this way before. It was like a more intense way of the release she felt whenever she sank a ship, so she definitely couldn’t stop herself from pushing her fingers up against her nipples, no matter how much they seemed to strain her swimsuit.

Neither of them were really aware of their bodies’ reaction to the gas. Beyond just their minds being turned to easily manipulated mush, their curves were sucking in as much of that gaseous substance and being enhanced in return. Their moderate curvature was quickly bouncing outward, making them look sexier, complimenting their heads lacking any sort of important thoughts.

They didn’t need that stuff. What they needed were those heavy tits now hanging off their breasts, each of them reaching a comfortable H cup, full and reach to be played with by anybody that might want to cup a feel. Not to mention their hips or their asses either, perfectly sculpted to fill out an entire chair and still have room for a cock slipping in between those soft cheeks. They were made to be fucked, something that got all the more evident as they grew a few inches, making them look a lot more ‘matured’ in just the right ways…

Iehisa’s mind was losing more and more of itself as the pink gas that she had slurped up started replacing the rest of her thoughts. In fact, her name was getting harder and harder to remember. But since she looked just like I-26, and since she seemed to be having just as good a time as her, squeezing into her mammaries and wiggling her breed-happy hips around… Maybe she was I-26 too? Yeah, that sounded about right…

The two identical bunny bimbos shivered all over as they reached for one another, pushing their tits up against each other. Being together brought them more pleasure, especially as those nipples of theirs docked together. It felt so good that they couldn’t help but squat down ever slightly, with their former selves dribbling out from between their legs in the form of the pussy juice gathering below…

“CONVERSION COMPLETE. BIMBO RETROFITTING OF UNIT “I-26” HAS BEEN CARRIED OUT. ADMIRAL, ENJOY YOUR NEW BIMBO.”

Both of them didn’t really care as the machine opened up, nor did they understand the words that the machine spoke to them. All the two bimbo bunnies could think about was one thing, and one thing alone. The single thing that’d drive them as they walked out, swaying their hips from one side to the next, their asses bumping into each other and driving them further into pleasure…

Cock. Cock is what they craved. And if they were lucky, some of the other shipgirls might just have some for them...