Thin Walls

The first inkling that Ruby had that something bad was going to happen was when Yang asked her if she would be okay with sharing a room with Weiss at the hotel while Yang and Blake shared a room of their own. It wasn't that Ruby minded sharing a room with Weiss, quite the contrary, actually, but she and Yang almost always shared a room whenever their team stayed at a hotel or an inn. They were sisters. It made perfect sense.

Of course, Ruby wasn't completely oblivious as to why Yang might want to share a room with Blake. The two were in a happy, committed relationship that also happened to involve a great deal of physical affection – physical affection that they hadn't been able to indulge in for weeks since their team had been stuck on an extended missions tromping through a Grimm-infested wasteland.

Now that they had safely returned to civilisation and were at a hotel, it was only natural that Yang and Blake wanted to reacquaint themselves with the more physical part of their relationship. Heck, Ruby could totally see where Yang was coming from. Blake was, well, really hot, not that Ruby was interested in her that way. Her tastes ran more toward a certain heiress.

Being the wonderful sister that she was, Ruby had agreed to share a room with Weiss while Yang and Blake shared a room, which mysteriously happened to have only one bed. Yep, she'd bet every bit of the reward they'd be getting for completing their mission that Yang and Blake would be spending most of their alone time doing very adult things to each other, which Ruby was totally okay with… well, she was totally okay with it until she discovered how thin the wall between the two rooms was.

She and Weiss were forced to lie in their (unfortunately) separate beds as Yang very vocally informed them about how talented Blake was in the bedroom and how much trouble the Faunus would be in if she even considered stopping what she was doing. Blake hadn't said a word so far, but Ruby had a theory about that. Her mouth was most likely occupied with something else.

Now, Ruby loved her big sister very much, and Blake was one of her best friends, but there were some things that she really, really did not need to know. For example, she did not need Yang wailing like a banshee about Blake's apparently unmatched prowess in certain, ahem, oral activities.

"This is a nightmare," Weiss muttered as she rolled over to meet Ruby's gaze. "Do they not even care that we can hear them?" Yang let loose another scream which may or may not have involved a mix of expletives and Blake's name. "Seriously, can I just borrow Crescent Rose and shoot them through the wall?"

"No, your aim with Crescent Rose is terrible. Let me do it." Ruby cringed as Yang's voice hit a new, impressively high note. What was Blake doing to her to make Yang sing high soprano? Then again, it was probably better for Ruby's sanity that she didn't know. Knowing might have given her ideas, and ideas were a dangerous thing to have when Weiss was lying down in a bed less than six feet away in a negligee that was doing horrible, horrible things to Ruby's imagination. Suddenly, a very evil idea occurred to Ruby, and a smirk slipped onto her lips. "Hey, Weiss, do you want to mess with them?"

"Will it make them suffer?"

"I can guarantee that it'll work on Yang. Blake, not so much."

"I'll take it." Weiss scowled. "After all, Yang is the one making all the noise."

X X X

Yang slumped back onto the bed and tried to catch her breath as Blake finally allowed her a few moments to recover. The Faunus was absolutely evil in the most delicious way possible. But her attempts to recover before Blake inevitably decided to pounce on her again were interrupted when she heard cries coming from next door – the room that Ruby and Weiss were sharing.

"Oh…!" Ruby cried. "Oh!" The cry turned into a long, drawn out moan followed by what sounded like a brief scuffle. "Wait… Weiss… that's… that's too big… ohhhh!"

Rest completely forgotten, Yang sat up and pressed her ear against the wall.

"Yang?" Blake asked.

"Shh…" Yang's brows furrowed as she listened. There was a thump against the wall, and Ruby let loose another moan followed by a gasp.

"What are you doing, Weiss?" Ruby sounded breathless.

"Just be quiet," Weiss replied. "I know you'll enjoy this…"

"Wait… Weiss… that's… you can't… that… banana! AH!"

That was it.

Yang was not going to just sit there and listen while Weiss… defiled Ruby with a… a piece of fruit! Yang threw on some clothes and raced over to the other room, kicking open the door and getting unready to unleash hell upon the wicked heiress. Nobody, but nobody, did things to her sister with a banana!

But instead of catching Weiss and Ruby in the act, Yang found them completely clothed and laughing their asses off.

"What… but… what?"

"Oh? Could you hear us through the wall?" Weiss asked, far too innocently. "Funny how thin it is." Her eyes narrowed. "So, you can imagine how we felt when you and Blake decided to get reacquainted."

Yang slumped against the wall. "So… you two aren't… the banana…?"

"No, I am not accosting your sister with a banana." Weiss rolled her eyes. "Please, Yang, we don't mind if you and Blake feel the need to express your love physically. In fact, we think it's great that you two care so much about each other. But, please, it's been a long, long mission, and Ruby and I would like to sleep. Try to be a little quieter."

"I… I guess we could do that." Yang got back to her feet.

"Good." Weiss smiled. "Well, you should probably go back to Blake."

"Yeah, I'll do that." Yang stepped toward the door and then paused. Her gaze raked over the room before settling on the bowl of fruit on the coffee table. There was a bunch of bananas in it. She walked over and grabbed the bowl of fruit before leaving the room, slamming the door shut behind her.

Weiss and Ruby shared a look and then burst out laughing.

"That was incredible." Weiss snickered. "Ruby, you are the most evil person I know. And the banana thing? That was genius."

"I do my best." Ruby sketched a bow. "But how about we get some sleep now." Her eyes twinkled. "Or I could tell you what I was thinking of when I came up with the banana thing."

Weiss whacked her over the head with a pillow. "Good night, Ruby."

X X X

Author's Notes

As always, I do not own RWBY. I'm not making any money off of this either.

Well, I'm not dead. If you follow my tumblr, you'll know that I've been caught up in a lot of stuff lately. Anyway, it's always fun messing with Yang, especially when Ruby and Weiss are the ones doing it. And never, ever, trust a banana. Those things are evil.

As always, I appreciate feedback. Reviews and comments are welcome.