Harry Potter and RWBY crossover

By: FunahoMisaki

(A/N: I own nothing and read last chapter.)

"Well here's an easy way to solve this…how old would this Ceres girl be right now?" Coco asked after a moment of tense silence in the hall as she looked at Dumbledore and the others.

"Fourteen. Her birthday is on July 31st. She's the older of a set of fraternal twins." The red haired woman Coco recognized as her birthmother said immediately.

"Well then you have the wrong people. All of us but Ren and Nora are eighteen. Those two are seventeen." Ruby said shrugging her shoulders and causing everyone to blink at her.

"But you barely look fifteen!" A bushy haired girl said causing Ruby to sigh slightly.

"Yeah I know, I act like it too most of the time but that's just for shock value…and cause being childish is fun. Being a grownup sucks…I'll explain it again, I have speed as my semblance which speeds up time around my body while also making my body age slower than normal. It was hell trying to get into any of the fighting schools when I looked like I was two when I was actually five. My mind is normally younger than my body looks, about twelve or so if I had to wager a guess, but I'm smart and can act mature if I want or need to." Ruby said shrugging her shoulders again with a grin on her face, causing Coco to chuckle.

"And it helps that you like to cuddle and being so small makes that easier to do." Coco said causing Ruby to blush and scowl, punching her girlfriends shoulder gently.

"So time must move differently between Remnant and…this…Hogwarts place. Which means that one of us could be the descendant of the Ceres girl you were attempting to get your paws on. Wait…using that logic…oh crap we could have been gone from Beacon for months or years by now!" Velvet said her eyes widening as she realized that and causing all of the students to look shocked and promptly begin freaking.

"Oh man is Goodwitch going to kill us!" Ruby groaned causing a chuckle to be heard as the portal reopened.

"You'll find that I won't hold you accountable for something outside of your control." Goodwitch herself said walking through the portal with a rope around her waist. Looking around for a minute she narrowed her eyes at the people staring at her shocked before nodding deftly and yanking the rope twice. She got two yanks in return before a bunch of other people came through the portal.

"Fox!" Velvet said happily rushing over to her blind teammate.

"Nora! Ren! Are you two alright?" Jaune asked as he and Pyrrha dashed for their teammates.

"Sis how are you doing?" Yang asked rushing towards Ruby who was still in Coco's arms, Weiss and Blake on her heels.

"We're fine. We haven't even been here an hour though…how did you get here so quickly?" Ruby asked amazed and not fighting it as her sister picked her up out of Coco's arms and hugged her gently, despite the hug looking like it was a hard one.

"An hour? You've all been gone from Beacon for more than a week." Blake said frowning as she glanced at her teacher, ensuring that she was fine before she pulled out her weapons and stood guard with Weiss.

"So what exactly is this place?" Jaune asked even as he held his sword at the ready, eyeing everyone in the hall as the portal closed.

"It's a magical castle in what seems to be another reality given how time moves slower here!" Ruby piped up cheerfully before pouting up at her sister.

"Coco wouldn't let me down so I could help find out what was going on but will you set me down Yang?" Ruby asked causing Yang to pretend to think about it for a minute.

"Let's see…set you down and risk you getting injured…or keep you in my arms where I can protect you like a good big sister?" Yang asked rhetorically with a smirk on her face.

"You do remember that I'm older than you right?" Ruby asked her eyebrow twitching slightly.

"You don't look nor act it most of the time, therefore I am the big sister and it's my sacred duty to protect my cute innocent little sister." Yang said grinning and causing Ruby and Coco to both snort.

"Innocent my ass. You have no clue what she can do when she gets' in that mood." Coco said smirking widely and causing Ruby to blush and scowl.

"Shut it Coco! You do know Yang will kill you once she finds out what all you've done to me right?" Ruby asked smirking slightly and causing Coco to blanch, making Yang blink before her grip tightened on her sister.

"She's done what to you Ruby?" Yang asked the air around her beginning to heat up as she glared at Coco.

"Yang if you're going to go super sayan then put me down first. I don't want you setting me on fire again." Ruby said casually, earning wide eyed looks from everyone but Coco and Yang.

"She set you on fire?!" Pyrrha asked/demanded looking horrified and causing Ruby to blink.

"More than once but it's okay. My aura shields all but my cloths from it and my cloths have been fireproof since I was two. Heck I've set myself on fire before from going too fast for too long…wait is that setting myself on fire or is that just self-combustion?" Ruby asked confused and causing her friends to stare at her wide eyed.

"Self-combustion means you blow up, babe. Setting yourself on fire is different." Coco said not fazed in the slightest although she smiled a little at how worried her small girlfriends friends were.

"Thanks Co." Ruby said nodding her head in understanding.

Goodwitch, despite looking slightly worried about this herself, was the one to bring everyone back on track as she glared at who she guessed was the man in charge.

"So mind explaining why exactly eight of my students were kidnapped? One of whom was still under medical supervision from being stabbed in the lungs?"