Hello all, I give you a chapter I managed to squeak out while busting my ass every day as my semester winds down, I haven't had as much time as I would like, but cest la vive. This chapter is a premise I always found to be odd that no one has ever thought of, and I tried to take a more humorous approach to it. I'm probably not as funny as I think I am lol, but once more cest la vive. Regardless, I hope you all enjoy it!

Synopsis: As Nepgear and Neptune unwind late in the evening, they come to a horrifying realization about the nature of their relationships with certain black-haired tsunderes, and what that means for one another.

As the late evening rolled around on a non-suspect day in the surprisingly busy nation of Planeptune, the citizens enjoying the recent boom the country seemed to be experiencing. The last few months the nation had seemed to finally be kicking into gear. Was this a once-in-a-lifetime event? Was Planeptunes leader finally working for seemingly the first time? Well… not quite… But to get there we first must look into the central building of the nation, where the 2nd in command returned from her night out.

Nepgear was dressed in her nicest outfit as she hummed a tune kicking off her shoes as she entered the living area of the basilicom. Seeing her sister mashing away at some type of game she was playing at the moment, Nepgear spoke up as she passed by,

"Good evening, Neptune, I'm home" Neptune paused her game as Nepgear took a seat close by on one of the comfortable chairs. Giving her feet a rest, no matter how many times she did it her feet always killed her after wearing heels for extended periods. But they completed the outfit, so she lived with it.

"Well, hey there Nep Jr, how went the ol co-op mission?" Neptune amicably asked as she turned to face her sister. Her eyes with a twinkle of mischievous nosey sister energy.

"Heehee~ It went pretty well, of course, Uni was nervous to be in public but it's always so cute when she gets like that" Nepgear brightly smiled as she clasped her hands together.

Ah yes… the reason that Planeptune had experienced such a boom in recent months. It had leaked that the CPU and CPU candidates of Planeptune were in romantic relationships with their counterparts from Lasation. The shock value alone sold millions. And in fact, it did. A certain gilded robot had made millions off the breaking of that news, how he obtained such news was not important. The threatening of his life at the hands of the Lastation goddesses? Also irrelevant, he made bank.

Regardless, the mere association of Lasation with Planeptune was enough to boost confidence in the small nation. This, of course, was not on the minds of either of the easy-going purple-haired goddesses, but admittedly was a neat side effect. Plus, it got Histy off their cases! Even if the little fairy nearly had an aneurysm at the source of Planeptunes sudden growth.

"Those two really are the same, aren't they?" back in the living room, Neptune gave a hearty chuckle at the similarities between her girlfriend and her sister.

"Hmm they say the same thing about us don't they" Nepgear put a finger to her chin as she thought it over. She could think of numerous occasions she had been accused of being just like her sister.

"I guess I've heard Nowa say that a few times…" Neptune also considered it.

"I guess it should be expected, how often does a pair of sisters date the other" Nepgear pointed out,

"True… But if we ever decided to get married or that junk the other would be marrying… their own sister?" Neptune spoke slowly coming to the horrifying realization, as she stared blankly at Nepgear, "Haha so whoever got their's second would be marrying their sister…."
"...sister-in-law" Nepgear pointed out, returning the intent stare.

"Yea like that matters, I mean we'd be in-laws haha"

"Haha"

"So, you'd totally let me go first right?" Neptune looked at her sister in the eyes, who seemed to consider it for a moment

"Isn't it older sister like to be gratuitous and grant her younger sister the right to go first?" Nepgear added and the two continued to look at each other.

"..."

"..."

The two continued their staring match, eventually, Neptune let out a chuckle,

"But like it matters… right Nep Jr?"

"O-Oh? Yeah, of course…" Nepgear scratched her head, before adding, "Say I'm a bit beat, I'm gonna go to bed early" She said, and Neptune looked at her before considering,

"Yeah, I guess I should head down too, wouldn't want to wake ya if I go in later"

The duo silently got up as they made their way to their shared room, putting on their nightwear before quietly getting into their bed. Soon both women looked around carefully, noting the other wasn't watching them as they checked under their pillows, satisfied that the box they had planted there was in fact where it belonged.

After some time, Nepgear carefully listened to ensure Neptune had fallen asleep. Turning to her side she noted the time, 9:37. If she hurried, she could make it to Lastation no later than 10:30, and considering Uni never went to bed until at least 11:00… she could make it. Nodding to herself she grabbed the box under her pillow, gingerly getting up while making her way to the door.

Quietly she tiptoed to the door, Neptune was a deep sleeper, way too deep most days, so honestly, this was more out of paranoia than anythin-

"Well, hey now, Nep Jr what are you doing going all stealth mode" Neptune's voice suddenly reached Nepgear and she slowly turned around, thinking of a response,

"Uhhh I'm going to the bathroom, I didn't want to wake you is all" Nepgear nervously chuckled as she gave her response, which she thought was pretty good in all honesty.

"Say, what're you holding there?" Neptune asked, giving Nepgear no time to rest.

Nepgear stared at her sister, then at the box in her hand, then back to her sister. Nothing came to her mind as she tried to think of an excuse. With nothing to say, Nepgear simply turned on her heel and began to quickly make her way out of the room, quickly breaking out into a full sprint. Hearing Neptune jump off her top bunk and quickly made her way after her sister.

"Taaaake thiiiis!" Neptune yelled out as she summoned a banana peel from somewhere (?) and made a perfect throw, hitting Nepgear in stride as she quickly spilled out, gracefully jumping over the fallen candidate on the ground as she made her way out. Only to feel a hand grab her heel,

"Hey, where did you even get that?" Nepgear asked,

"Don't ask too many questions Nep Jr, now let me go, the protagonist gets first dibs!" Neptune stood up with resistance as she slowly began trudging out.

"No way, I don't wanna marry my sister! I get called a sis con enough already!" Nepgear re-upped her effort as she hugged onto Neptune's leg, causing the goddess to spill out on the ground once more.

"Don't be a spoilsport Nep Jr, I'm the protagonist!" Neptune huffed as she tried to pull herself up,

"That's not fair! I was the protagonist once, plus the next game is mine too!" (Note: this joke was written before SVS released lol) Nepgear yelled out in defiance. For a moment Neptune paused, thinking it over, before shaking her head.

"I have 3, you have 2!"

"Victory 2 was Uzume's game!" Nepgear yelled back

"How could someone in my own family say something so horrible!" As the two continued their yelling match, they seemed to miss the loud opening of a door close by,

"By the true goddess! What in Celestia are you two doing!" The angry voice of the diminutive oracle yelled out, and the two goddesses stopped, looking at each other for a moment.

"Histy! Nep Jr is a big bully, she wants me to marry my sister!" Neptune whined, and Nepgear quickly pinched her cheek,

"That's not at all! Neptune is being a greedy older sister and wants me to marry my sister!" Nepgear complained

"What are you two talking about!" Histoire yelled, none too thrilled to be woken up by the seemingly feuding sisters. She pinched the bridge of her nose as the two continued to pinch each other bickering, "You two that is quite enough! What is going on!" It would also seem the small fairy had run to the end of her famously short patience,

Eventually, Histoire would gather enough from the bickering sisters to piece together what was happening, with her voice as exacerbated as it could she looked at the two once more, "So let me see if I got this straight…

"But we're not straight" Neptune cheekily added,

"Neptune, I swear shut up." Histoire had never heard of something so brain numbingly stupid in her whole life. "So, you two are competing to marry Noire and Uni first so the other has to marry their sister-in-law?" Histoire could barely comprehend the words she was saying,

In front of her, the feuding sisters looked at each other as if nothing was more natural in the world, before eyeing their oracle,

"So Histy, who gets to get married first?" They both eagerly asked

"..." Histoire simply looked on, baffled.

Neptune and Nepgear continued their eager eyeing, and Histoire eventually let out the deepest sigh in her entire existence, before feeling the vein in her head pop.

"What is wrong with you two!? Get back to sleep!" She scolded, and the Nepsisters looked at each other before gradually making their way to the room they shared, gently shutting the door.

"I do not know what I must have done in a previous life to deserve this, but surely I must have repaid it, no?" Histoire asked, to no one in particular as she soon too made her way back into her room.

Down the hall, Nepgear let out a deep sigh as she made her way to her lower bunk, although out of the corner of her eye, she could not mistake Neptune in the corner of the room, fiddling with the window,

"Sis, what are you doing?" She asked, curiously

"Winning my dear sister" Neptune gave her a wink as she opened the window, quickly jumping out.

"..." Nepgear looked on, baffled by the sight she witnessed, a few moments later her brain processed what had just happened, and soon she sped into action, masterfully jumping through the window at top speed, before quickly assuming the form of Purple Sister, speeding after the CPU.

"You're the worst you know that sis!" She yelled out

"My dear Nepgear do not take it personally" Purple Hearts' suave voice called back as the two blasted across the continent at max speed.

Nepgear clicked her tongue as she quickly realized there was no way she could catch up to her sister, thinking over all her options she eventually drew her prized MPBL and fired on minimum power to slow the speeding Purple Heart, who elegantly spun out of the shots, although in the process slowing herself.

"Man, why'd she have to do a barrel roll..." Nepgear bemused to herself, although she soon smiled as she passed by the slowed Purple Heart.

"I am impressed, Nepgear! But you're still 10 years too early to beat me! Look at something I picked up from my other self!" Purple Hearts' voice faded to Purple Sister as she slowed to activate her skill, and Nepgear could only look back in mild confusion, well before she felt her face conform into the famous Nepgya face as she saw the massive wall of pudding forming in front of her. Unable to slow her momentum, Purple Sister quickly found herself engulfed by the massive gelatinous summon.

"Noire will be mine first~" Purple Heart blew a kiss to her defeated sister before speeding off. Or at least that was what she had intended to do, but as she planted on her glyph to speed off, she felt a fierce grab on her ankle, looking to the source, the metallic being with claw hands that had gripped her given away by the face. "I do wonder why she doesn't fix that…" shaking her head at the thought, the composed goddess quickly turned her attention to the proverbial mountain of pudding she had summoned, seeing the base of it shake, glowing in a lilac hue before exploding.

"What a waste of pudding…" Purple Heart clicked her tongue as she began focusing her efforts on disengaging the Nepgeardams claw from her leg.

"Nepgeardam! Do not let her go until I have proposed to Uni~" Nepgear sweetly, the crude robot nodding in affirmation,

"Tch" Purple Heart quickly cycled through her options, deciding rapidly on her best option, which was using her 32-bit swords to de-arm the robot, planting on a glyph, before taking after the candidate. Arm still dangling from her leg.

"This is silly, Nepgear!" Purple Heart called out as the two sped, rapidly approaching the border of Lastation

"If it's so silly, then let me go first!" Nepgear retorted,

"Of course not, I'm the older sister!"

"I don't want to be a siscon!"

"Why is that such a prevalent thought in your mind!"

"Everyone keeps calling me it…" The second of hesitation from the candidate proved to be fatal, as in the split-second Neptune from her angle underneath the candidate was able to precisely fire a 32 blade… slicing Nepgear across her processor,

"Eeep!" Nepgear immediately slowed, her hands flinging, in an attempt to cover herself, "Sis you're the worst!" Purple Sister yelled with tears threatening to make their way down her face,

"Tis the fate of a war over love" Neptune smugly added before speeding off, the skyline of the capital city quickly appearing in the distance,

Purple sister looked on in horror, before gently and slowly moving her hands, assessing the damage to her outfit, finding that at least most of her modesty remained preserved, she pouted, "Didn't you say you wanted to be a better sister after how you treated me in Plutia's dimension…"

For but a moment Purple Heart looked back with a conflicted expression, all the morals and conflicts in her life colliding in one moment… well at least for but a moment,

"How about this, you can be the bridesma-" Neptune was cut off as she felt something slap into her face, by the feel of it, "mmm egg pudding is my favorite…" Nepgear had thrown the pudding that still covered her

At the moment that followed, Purple Sister made a mad dash for the majestic building in the center of the city. Ordinarily, Nepgear liked to make her way in through the front door, greeting the workers and following all the proper protocols, now? Almost in a dead freefall, she plummeted to the balcony, rolling with her momentum as she broke out into a full sprint.

"Not so fast my dear sister!" Neptune also flying at dizzying speeds slid on the ground using the small amount of sp she had remaining to summon a small pudding creature right in front of the sprinting Purple Sister, who in turn slipped on the sweet delicacy,

In a moment of defiance, as she gracefully slipped, Nepgear managed to take a hold of her sister, stretching out her processor set to its limit as Purple Heart dragged the candidate as she continued her march through the basilicom.

Thinking quickly, Nepgear summoned her bits as she quickly issued commands, and in turn, the robotic creations obeyed, creating a tripwire in front of the CPU as they both stumbled once more.

Once more the duo found themselves pettily tugging at one another, shouting mildly funny quips as they tried to make their way through the building. Of course, the volume of their conflict was quickly noticed by the two occupants of the basilicom, who quickly rushed to find what all the ruckus was about, completely unexpecting the sight that awaited them,

Purple Sister and Purple Heart mildly wrestling. Purple Sister, still covered in pudding, her processor cut, looking much more like the one worn by the Lastation candidate than her own at this point. Not to be outdone by Purple Heart, who still had some type of robotic arm attached to her, her own processor stretched by the grapple performed by her sister.

"Neptune?!"

"Nepgear? What are you two doing here?"

Noire, then Uni responded. Noire, who sounded much more irritated at the intrusion than anything, was complemented by Uni, still in her formal wear from her night out, who was more confused as to why her girlfriend was here… covered in pudding.

"Uni!" "Noire!" The duo yelled as they lunged, summoning their key items from their inventories, using the last of the energy they had left, dashing forward to kneel before the goddesses, presenting the gorgeous rings they had come to present.

"Will you marry me!" The Planeptunian goddess yelled… in complete synchrony. Having used the last of their energy, both women felt their transformations break as their faces plummeted to the ground, using all they had in them to hold up the opened boxes.

Neptune's ring was a bold golden ring that accented the quite sizable jet-black quartz, whereas Nepgears ring was more subtle, a silver band that held a merging gray labradorite gem with a brilliant purple amethyst.

Both of the goddesses on the ground could only look up when they heard the loud 'conk' that resonated in the room, looking up to see the fainted forms of the Lastation goddesses smacked into one another,

"Uhhh…."

"Should we help them Nep Jr?" Neptune looked over to her younger sister, and as if nothing had happened at all the two sighed as they willed their bodies into action, carrying the fallen duo to their respective beds. Well after not so subtly slipping on a brilliant ring they had spent the national budget on… not that Histoire had to know. It would take multiple attempts (many many attempts) to convince the black-haired tsunderes that the attempts were in earnest, and even more to get them to actually stay conscious long enough.

Eventually, a grand ceremony would be held, of course, after much bickering, it was decided that in a bold move, both weddings would happen simultaneously. In all of this, somehow the Planpetunians missed on the irony in that they both now were married to their own sister-in-law….

It's been a bit, but I do have some reviews to get to here.

Gigarot- I'm glad you appreciate good ol yandere Nepgear getting a W, although I must say, did you really think I had it in me to not have them get together? Uni doesn't have to worry about a thing, Nepgear will give her everything she could ever need, and really who cares if a few people get traumatized/injured?

Uni-Bot- Why thank you, means a lot. I honestly played around with the idea of Uni being the yandere, but I couldn't think of a good reason for her to just snap without making up something, which is why I choose Nepgear who snapped over Steamax. Although if I do recall there is a yandere Uni story on this website somewhere.

end5- I'm glad you enjoyed it; it was fun writing an unhinged Nepgear, and I'm not sure I've seen that anywhere else so it's neat to write a cool concept.