[Instant Loss, Lactation, Brain Drain]

"Hey, Pyra."

"What is it, Mythra?"

"You ever wonder why these girls appear on the milk bottles that keep getting sent out?"

"I don't. They're Cows, Mythra, you should know this by now."

"Yeah, but they look like girls. You know, like us?"

"You're saying we're Cows, Mythra. Please think about what you're saying."

Sitting in the middle of the apartment that had been alotted to them during their stay at the Smash Brothers Tournament were two parts of a greater whole. The Aegis, Mythra and Pyra. The hotheaded light-wielding swordswoman, and the kind-hearted flame-wielding caretaker, who were able to stay apart while they were in this world.

It really was rather strange to see the likes of former competitors like Samus, Palutena and Rosalina, each experienced in their own right, plastered across these simple milk bottles that they drank for breakfast every day. But at the same time, they weren't missing. They were probably just carrying out their duties as Cows. Not that Pyra or Mythra truly realized how idiotic that was, nor that Milk Duty definitely wasn't a thing in this world. But the milk had already done more than enough to them.

"It's about time for you to be milked, Mythra." Pyra said with a smile as she reached towards her other half, carefully lifting up her breasts with her gentle hands. "You want me to be rough or help you slowly coax it out as usual? Or would you rather deal with my milk first, so you can work out your frustrations?"

Mythra narrowed her eyes. She definitely felt like something was off about all this. First of all, they definitely weren't this busty when they first arrived. They were bigger than this. And as far as she remembered, Cows didn't get milked by other Cows. Hold on, no, that didn't make sense either. What was going on..?

As the blonde Aegis did her very best to try and keep her mind on track, she downed another bottle full of Palutena milk, not realizing that her breasts were growing a few inches to make them grow bigger than her head. "Alright, listen-"

Before she finished her words, the doorbell rung. Or rather, the Cowbell. And the two Cows that were still on the border between Cowhood and Humanity trembled as their nipples started to drool a little bit of milk in response. It felt nice to hear the cowbell. It meant that it was time to... Time to...

"Cows 102 and 103! Open up! It's your time to be processed!"

Oh, yes. Time to be picked up by Atlas Corp and get their brands so they could get stuffed into a very tight stall that wouldn't fit them properly and would probably make them feel all sorts of stuck. It was that time.

Both Cows walked towards the door leading out to the rest of the complex, opening with their tits bouncing as obnoxiously as possible while they smiled like the idiotic Cows that they were. "Sorry about the wait, Sir! Cows 102 and 103, at your service!" They cried out in unison, the stupidity at display practically leaking out of their ears. In fact, a little bit of white did pour right out of their ears...

The boy standing outside the door was dressed in a white suit, his white hair and red eyes unmistakable as the young man that had laid claim to them the second they had signed the deal to a free lifetime's supply of Cow milk. The idiots didn't realize that it was turning them into Cows. You are what you drink, after all.

"You both didn't wear your uniform, Cows. You really are the stupidest Cows I've seen thus far." The young boy said as he adjusted his tie. "You two have powers beyond Cow comprehension, right? Fix your outfits so we can get to work."

Both of the stupid Cows nodded and saluted in front of the much smaller boy before their clothes suddenly disappeared. The swimsuit-like leotards that they wore whenever they were being casual either burned up in the case of Cow 102 or just dissolved into light in the case of Cow 103, with their respective outfits being replaced with such a tiny cow-print bikini that their nipples were poking out through the fabric.

It didn't matter what they were wearing, because they were Cows that didn't deserve to wear anything, but this was a level beyond. The bikinis that Cows like them were assigned to wear consisted of a top with such tiny pieces of cloth that it was utterly impossible to expect the cloth not to sink straight into their nipples from how wet the fabric would get, as well as a bottom that could best be described as a literal piece of string that started to rub into their pussies to get them gushing before they'd be milked.

The boy looked at the two Cows and slowly examined their tits, weighing them with his hand and squeezing into them to make sure that the Cows were making the right kind of moans. If they were high quality, they'd be making so much milk from a simple squeeze that they started turning stupid.

When he looked up at Cow 102 and 103's respective faces, their eyes were spinning like a slot machine. And once he tugged again, making the milk splatter across his hands to the point where he'd have to lick them clean as to not waste some rich milk, their eyes ended on a matching set of "MORON" displayed in every eye. He had won the grand prize. Excellent.

"Right. Since you two need to be branded, please step inside. It'll be the last time you'll be in this awful apartment, but I need more space to milk you." The boy said, and both of the moronic Cows nodded and mooed in response to his abuse. They thought that it was totally normal to be treated like a common milking animal by a boy that was half their size, it was just what Cows did.

The former Aegis lined up side by side, 102 and 103 letting their tits stand out as they put their hands behind their heads. They were assuming the proper manual milking position. And as they looked at the boy that owned them, they really hoped that one of them would be first. Because their milky tits were reaaaally heavy and weighed down lots on their brain...

"Let's start with you, Cow 103. You seem like you've got the most tension in your tits. Can't have you lugging those things around without making sure you're completely brainless." The boy said as he grabbed ahold of her tits, making sure that his grip was properly aligned with the ground, and then...

He tugged on both of her nipples separately. And the stream that poured forth was incredibly thick. Thicker than his arm. The moan that left the blonde Cow's mouth was something to behold as well, as she just kept on letting it all pour out. It was like music to his ears. There was nothing as delightful in this world as the sound of a freshly broken-in cow.

The Cow once known as Mythra could feel her memories tearing themselves free from her mind. She could feel that something was dangerously wrong, but it was far too late. Even though she could see all her friends and allies pouring past her eyes, they were turning into little more than fuel for her breasts. The more her Owner tugged, the more that they were being converted. It was being tugged straighti nto her tits and converted into rich milk that was being completely wasted.

The fact that Cow 103's first proper milking was leading to this kind of waste, when she had once been one of the most powerful beings from her original world? That was the thing that made her mind completely and utterly break as she started to smile like a dunce. There was absolutely nothing left up inside her head. If one were to calculate her intelligence before and after she had been milked for the first time, they'd be shocked to find that she had 50 points already. But now that she's been tugged to the point of complete brainlessness, that nice 50 turned into -500, as she drooled like a complete and utter idiot.

Cow 103's eyes were spinning into useless yet very nice spirals. Nice blacks and whites spinning around wildly to the point where if another Cow were to look straight into her eyes, they'd probably end up as stupid as her because Cow brains couldn't handle this sort of sensory overload. And it would also keep her nice and docile while she was being milked, because all that spinning was doing a number on her empty head. Should a thought ever try to root itself inside her mind, it would quickly be twisted and tugged back down into her tits so it could be made into more milk.

Satisfied with Cow 103, the boy pulled back and gave her tits a few slaps to give his approval, before looking to Cow 102. The redheaded Cow hadn't even really reacted to what happened right beside her. She had just smiled from ear to ear, waiting patiently for her turn like the moron that she was. What a good Cow. Cows were supposed to ignore anything that happened to their kin, to make it even harder for them to ever rise up. If they were ever aware of what happened to each other... They would probably cum themselves stupid, way before they even started to put together any semblance of a plan.

Instead of giving her the same kind of rough treatment that completely destroyed Cow 103's brain, the boy grabbed ahold of Cow 102's tits and steadily started to pump his hands up and down. Instead of a rapid and thick stream that poured from both nipples, he paced himself and made sure that the streams would be changing back and forth. When he pumped one tit, he'd pump the oter after letting the first rest and so on.

This kind of stimulus was doing a number on Cow 102's brain. Although she was regaining her identity as Pyra by having her mind turn into milk at a slower pace than Mythra's, the way that the owner worked her tits meant that the thoughts were being pulled into two separate trays. Sure, she could remember some of her friends, but their faces was in the other half of her mind, and she quickly started to forget it all once she started to moo.

Cow 102 let out moan after moan as she mooed more and more. It felt really good to be milked. So much that she didn't even realize that her tits were growing from this kind of milking. By the time that her Owner finally let go of her tits and let her breathe because she had proven herself to be a great Cow, her tits had expanded until they were about four times the size of her head. And they were really heavy too. If she ever did get a thought, that heavy sensation that her tits brought would make sure that the thought would quickly be yanked down into either itt and turned into way more milk.

"I was right to go seek you two out." The boy said, pulling out a set of pictures from his pocket. Their respective neutral expressions, before he had turned them into Cows. Perfect for advertising the brand new Aegis milk. It even came in Pyra and Mythra variants to suit one's needs. And both were a different kind of rich, ensuring that he'd be making even more cash than before. "You're the best cows yet, 102 and 103. Be proud!"

They didn't say a thing, merely just smiling like the dopes that they were. Even as he stamped their tits with their respective numbers, they didn't react. Because they had nothing left up there to react with, just drooling it all out of their tits...

The Cows still had to be branded. But for the time being, they followed right behind their Owner. Giggling like the ditzy morons that they were, more than happy to get shoved into a stall when they finall arrived.

And their milk would do well to convert another set of Cows, just like they had been. The cycle of Atlas-owned Cowdom, repeating eternally, one Cow at a time…