[Breast Expansion, Lactation, Macro]

"Thank you for coming, Kirika. I'm sorry that we couldn't do this aboard the ship, but I needed new materials, and the lab that they had on site was really good too. So I..."

"You don't need to worry about it, Elfnein! I'm sure the others would've come running if you asked them instead, dess!"

Kirika grinned as she sat across from SONG's tiny Alchemist, who happily smiled in turn. As for why she was here, it was quite simple. She had some LiNKER to test out. According to Elfnein, it should allow her to achieve an even greater synch rate with Igalima, to the point where she could be even stronger than Hibiki. It was a little weird to think that she could end up stronger than her, but was worth a shot.

"You're right, Kirika. Thank you." The short Alchemist said, before rolling her chair towards the nearby fridge where she kept the various vials of LiNKER. "I did end up making a tiny mistake with the last batch I made. But hopefully, this new batch should-" Elfnein explained, before her eyes widened since there was a vial missing from the failed batch she had stored away for safety. "W-Where'd it go?"

"Mm? Where'd what go, dess?"

Elfnein turned her head back towards Kirika, as a single worry filled her heart. There's no way that the girl... Yeah, no way. Not a chance. Right? She... She hadn't grabbed the failed vials, right..?!

Kirika tilted her head slightly as she pulled the trigger on her LiNKER injector, trembling slightly as the faintly off color liquid sank into her bloodstream. All while Elfnein's fears were realized.

"K-Kirika. That... That was one of the batches that was contaminated by my mistake." Elfnein said, as sweat ran down her face. "Y-You don't feel anything weird, right? You feel okay, right?" She had to make sure that Kirika wasn't in pain or anything. If she started hurting because of her, then she couldn't live with herself.

The blonde girl looked at herself for a moment before shrugging. "I don't feel that different, de-" Though before she managed to let out her vocal tic, a moan slipped out instead. And in an instant, her chest started to swell up.

Elfnein was not quite horrified by the sight of her friend's breasts growing like this, as she expected a much worse effect. But it was still distressing to see how quickly that bosom was growing. "D-Don't panic, Kirika. All we have to do is try to suppress the growth somehow. I've got some bindings here, just hold on!" She had to act quickly. If she didn't, then those breasts were going to ruin the building. And... Well, that was bad, but it was worse to subject Kirika to whatever came with the growth of her breasts!

Kirika was shocked to see how big they were growing. They were even bigger than Maria's, and bordering on being as big as Chris'! And they were still growing, really quickly too! What should she do?! She always had trouble thinking under pressure, especially when faced with something so weird...

Well, if they needed to make them smaller, then maybe if there was something in them, she could get it out! That was an idea, at least! So with her hands, she reached forward and grabbed both of her nipples, and squeezed as tight as she could to try and get some milk out.

That was possibly one of the very worst things that Kirika could've done, because the rush of pleasure made them expand by several cups right then and there. Leading her to cry out in delight as nothing really poured from her nipples. And it left her floored too, resting against the back of her chair as her nipples trembled and throbbed. They wanted to be milked, but it would take more than that...

"Oh no, they're even bigger..!"

Elfnein was shocked to see them roughly double in size by the time she had returned, with Kirika drooling a bit thanks to how intense the pleasure was. She probably tried to milk herself, given the way that her nipples throbbed. This wasn't good. She needed to act quickly, otherwise...

With a deep breath, Elfnein tossed the bindings into the air. And a small bit of wind-based alchemy, just enough to carry the bindings on the wind, poured into the material. All so they could swirl around the girl and start to bind down those breasts.

She had made sure to bring a lot of material with her. And it was warranted. As the material quickly circled Kirika several dozen times over. Each circling brought them closer and closer, tightening the radius until they made contact with those mighty mounds...

And it actually almost seemed like it worked. Because as the bindings tightened and brought the breasts closer and closer to her torso, it definitely seemed like they weren't growing any further. She hadn't investigated the full effects of the LiNKER that had been contaminated, but if they were able to subdue this growth with bindings, then she'd have a chance to closely investigate the finer details...

At least. That's what Elfnein was planning to do, if she was able to bind them down with nothing more than bindings. But unfortunately, her hopes and dreams were shattered in an instant, as Kirika let out another powerful moan and an equally powerful "D-Dessssss!". In that instant, her breasts tore apart every layer of the bindings that had tried to suppress her growth, causing all of that fabric to be promptly launched away...

Not only did they manage to break free, but they had doubled in size again. Each breast was now the same size as Kirika, and they showed no sign of slowing down. And they were just as happy to be milked as before, given the throbbing nipples that were practically begging for it. They wanted to be played with. To be toyed with and forced open...

"D-Dess... E-Elfnein, they're so heavy..!" Kirika cried out, panting and gasping as her nethers grew wetter and wetter. It was one thing to have them grow like this. It was another to have all of this pleasure bundled together with it. She didn't want to be overwhelmed by it, and yet it felt so good...

Elfnein was running out of options if they kept growing like this. She had to think of something. She couldn't call upon the Autoscorers, they weren't made to help with something like this and they were still under reconstruction after she managed to salvage the remains. And if she were to try and stir the few memories that remained of Carol, she'd probably just chew both of them out. But she did have her alchemy..!

"Just try to hold on, Kirika!" Elfnein cried out as she used her Alchemy, three stages of fire specifically, and wrapped her power around both breasts. Then she added another stage of water near the tip, and prepared two hoses that led towards the garbage disposal. Two that were equipped with vacuums to make cleaning easier.

With her alchemy and these hoses, it should be easy to force the milk out of Kirika's body. And if that worked, then... Maybe they could suck the contaminant out of her too! It was worth a shot!

Kirika let out a moan as she felt the two hoses being attached to her chest, and trembled a little more as she felt warmth across both of her breasts. But she knew that this was probably going to end well. She trusted Elfnein. If there was anybody that could help her with this, especially since it had partly been her fault, then it was Elfnein!

"This might be a bit much, Kirika, but just hold on!" Elfnein cried out, as she turned on the two hoses and activated her alchemy in tandem. Hopefully the multi-stage stimuli would cause her to lactate quickly and make it easy to extract the worst of it!

Once she felt her breasts heat up intensely, and an artificial flow of water flowed out through her nipple, Kirika could immediately feel her breasts compensate by letting loose everything they had inside. Letting all of that wonderful milk pour its way out, quickly letting the two hoses slurp up as much of that milk as it possibly could...

And despite Kirika's many moans from being milked in such a strange and haphazard way, it seemed to be working. Her breasts were shrinking. Not by much, but if this just kept up, then she would be able to turn back to normal. But... At the same time...

Seeing her being milked like this was really uncomfortable. Not because she thought Kirika felt a lot of stress and discomfort from being milked. But because it would last a rather long time, and she couldn't be sure that Kirika could endure all of that.

So Elfnein did her best to maintain the alchemy as much as she could, while at the same time reaching for the batch of Anti-LiNKER that she had on hand in case of emergencies. She slotted it into the injector, and then prepped a second injector just in case. Then she took a deep breath and pushed the two of them up against those massive mounds, hoping that Dr. Ver's old formula worked even when the LiNKER had been contaminated.

Kirika let out a very brief moan as she felt the other liquid slide its way into her breasts. And for a very brief second, it seemed like everything just stopped. Her growth, her lactation, everything just... stopping...

Silence. A brief calm before the storm. Or a moment of relief? Neither of them could tell. But Elfnein hoped that it was the latter. She hoped that it had worked.

But it didn't. All of her alchemy shattered as she was immediately launched at the wall, and the hoses that were trying to slurp up Kirika's milk were forced off as well, all thanks to the growth starting back up yet again.

In a mere instant, the growth intensified to levels that neither of them would have predicted. And Kirika was wracked by orgasm after orgasm, which just made the breasts that were four times her size all the more ridiculous. Because their growth was the cause of her pleasure...

Just as her pleasure was the cause of the waterfalls that her nipples had become. Gallons and gallons of milk started to pour out of her nipples, filling the floor in mere moments. Short circuiting any kind of electronics that were still active, and raining it all down on Elfnein as she wedged herself out of the wall.

All so she could see the horrifying sight of Kirika's breasts growing even further, and bursting their way through the ceiling and the walls. Those things just didn't want to stop. They doubled from their original size every few seconds, which made the growth all the more absurd. It was like it was skipping inches, and the skips only grew bigger and bigger.

Elfnein was forced to quickly run in between those growing breasts for safety, before the wall and ceiling around her caved in as well. And even while she was between them, she could still see the destruction that was wrought. She could see it all...

As Kirika continued to moan, those contaminated breasts of hers were now the size of a small building. And they were tearing their way through the complex. Growing further and further, and showing no signs of stopping. When would they stop? What size would they end up as? Would Kirika manage to come back from this?

Thoughts like those rushed through Elfnein's mind, unaware of the heat in her own chest. Unaware that the contaminated milk's fumes had an effect on her...

Unaware that she had set off a chain reaction, and that Kirika's breasts would be joined by hers very soon...