The Great Temporal Step-Sibling War!

By Sift Green and AndrewJTalon

Disclaimer: This is a fan based work of Prose. RWBY is the property of Rooster Teeth and ViZ. Please support the official Release.

Yang Xiao-Long yawned and stretched her arms up over her head. The early morning sun was up on this beautiful weekend, and she fully intended to get in a good jog before the start of her day. She set off on her usual track. She could see Jaune Arc jogging as well, and let herself smirk a bit.

VB's got the spirit, if nothing else, she thought, as the blond jogged on the other side of the quad. He waved at her briefly, and she returned it. Good on him.

She made it down to the Ruin Gardens just outside the main grounds. Yang liked the trees and marble ruins along the path, framing the beautiful view of the valley beyond. It was soothing, though Yang wasn't a treehugger or anything. It was relaxing and tranquil... When what appeared to be a comet of burning yellow aura slammed right into the ground in front of her. She stood her ground and held up her arms to protect herself, and summoned up her Aura.

"What the hell-?!"

The aura and dust cleared. A girl stood there, about her age if not a bit younger. She was taller, curvy, and dressed in a black skirt, white tank top, boots, fighting gaunlets, and a blue and white jacket. Her long blonde hair was in a pony tail and her blue eyes glowed briefly.

"Uh... Hey?" Yang managed. "Nice of you to drop in."

The girl groaned.

"Ohhh geez, you're just as bad now," she moaned. She shook her head. "Okay, look. We don't have a lot of time, which is an actual joke once I tell you the rest."

"Hey! I am not bad at jokes!" Yang defended herself. "Who the hell are you, anyway?"

"Ugggghhh," the girl groaned. "Okay look: I'm your daughter Xia. From the future."

Yang blinked. She blinked again.

"I uh... Wait, what?!"

"I time traveled here by accident thanks to my friend Moses' Semblance, a lot of my half-siblings from different timelines showed up, long story short, if you don't get with my dad today, me and my siblings will cease to exist!" Xia held out her hand to Yang. "Please Mom, I know it sounds crazy, but if you don't do something, namely my dad, I'm a goner!"

Yang blinked a few more times. She snickered.

"Okay, who put you up to this? Ruby? Blake? This sounds demented enough to-"

"Your bio mom Raven abandoned you when you were two," Xia stated, eyes gazing into Yang's, "And then Granny Summer died on a mission after raising you and Aunt Ruby. She's your real mom to you and always will be. That's why you named me Xia, it's Mistralian for 'summer.'"

Yang again laughed, but angrily. She held up a fist.

"This is really getting a bit personal-"

"Uncle Qrow let you have some vodka when you were ten!" She went on. "You swore off the stuff after it made you throw up! But you get strawberry sunrises and other drinks like that!"

Yang's fists shook. She stared in disbelief.

"I... How could you-?"

"And you fell in love with Dad when he swore he would never abandon you," Xia went on, "And you knew he was telling the truth because you could always tell when he lied. And he never lied to you. Not ever!"

Yang slowly shook her head.

"N-Next... Next you'll tell me I marry Jaune Arc and he's your dad," Yang joked.

Xia nodded. Yang gaped.

"WHAT?!"

"That's right, Mom," Xia said, "That's my dad. That's your husband. Look!"

She pulled out a photo from her wallet and unfolded it. She held it up to Yang.

"See? That's you, that's me, that's Dad-!"

Yang did see. And I still look so damn hot?! Yang thought to herself. That older version of herself in the purple bikini had even more amazing tits, and abs you could grind meat on! Older Jaune held her with one arm, and she had her other arm wrapped around his waist.

And Jaune... Holy shit, was that what Vomit Boy was going to look like in a few years?! Built like a brick shithouse! He was tall, with a beard and everything! He was bare-chested, wearing just blue swimming trunks, with abs sculpted by a chisel!

Mama like. Mama SO very like, went her brain.

She also saw Xia... And a LOT of other kids besides her. Boys and girls, all with similar features. All smiling, some more strained than others, but all relaxed. All... All happy. Content even.

"Is that... Nine kids...?" Yang asked, a bit faint.

Xia nodded cheerfully.

"Yup! Well, ten. This is just before you found out you were pregnant again!"

"Again?!" Yang squeaked, eyes wide. Xia nodded.

"Yup! I know it sounds crazy, and you probably still don't believe me, but if you don't date Dad today, this future and me? We'll cease to exist and you might end up as some-some lonely biker lesbian with a cat or something!"

The girl's eyes... That fear. That loneliness. That desperation. She'd seen it before, in the mirror.

If Yang did become a mother, she often wondered what kind of mother she would be. Would she quit and run off like Raven? Or would she stay, and be a mother even to a child that wasn't hers but still loved anyway?

"Please Mom, help me! I don't know what else I can do to convince you-!" Her daughter begged.

Yang reached out her hand, took the photo, and calmly tucked it between her breasts. She then grabbed Xia's hand.

"Come on, Xia! Your Daddy's waiting!" She said with a fiery grin.

Xia stared at her in shock for a moment... Then she blinked away tears.

"YES!" Xia cheered, before trying to look cool and composed again. "I-I mean, not that you'd ever do anything less!"

"Damn right!" Yang laughed.

If it comes down to being like Raven or like Mom? I know what I'll choose, every time, Yang thought happily.

Besides, she continued to herself, I'm not ending up as some lesbian biker living with a cat!

Elsewhere, Blake sneezed.