Making a Mistake

They won't see me. No better time to do it than now.

Ruby sat down, watching the other students. Eighteen. There were eighteen of them. Ruby pulled her legs up close, then started massaging her breasts.

She thought about all the things she had done today. Running around naked, pranking everyone. Stripping Nora, exposing Pyrrha. Having almost-sex with Pyrrha.

Ruby craned her neck and looked up at the ceiling. She let out a soft moan. She was so slick. She squeezed her breasts harder. She must have looked like Pyrrha.

But the difference was that she was invisible.

"RUBY!"

Ruby sat up, her eyes widening. She looked around, but no one was staring at her. Looking down, she realized she was still translusent. She sighed and giggled. She was still invisible. Then she searched for the source.

It came from the front doors of the pool. Weiss, Blake, and Yang hurried in, but none of them had swimsuits on. They looked around wildly.

"She's here somewhere," Weiss growled. "Find her."

Ruby's heart skipped a beat. Weiss knew she stole the Dust! But... she couldn't see her. Maybe it was best if she got up and left.

But she was still horny.

And there was no way she was going to get a chance like this again. Ruby continued rubbing herself down. She laid down on her back, spreading her legs and she continued to furiously masturbate in front of everyone at the pool.

"Oh," she whispered. "Oh, yeah."

"I hear her," Blake said.

Ruby didn't care. She started rolling around on the pool floor, running her fingers in between her legs. She was there. She was there!

"Oh! Oh! OHHH!"

Ruby climaxed as she rolled to the edge of the pool. Losing control, she fell in, splashing water everywhere. The water cooled her off, and she shook her head before swimming back up to the surface. She looked around smugly, **** to see the reactions of everyone to the splash from nowhere.

But all eyes were on her.

"Where did she come from one?" one female student asked.

"Did she just masturbate?" asked a male student.

"Is she naked?" asked another, craning his neck to look beneath the surface.

Color drained from Ruby's face. She looked down to find that she was no longer translucent. Quickly, she swam to the edge of the pool and pulled herself close, laughing nervously.

"Um, hi," she said. Then she looked at her team. Blake was covering her mouth to suppress a giggle. Yang had her hands on her hips, clearly annoyed.

And Weiss had her arms crossed in front of her, fuming.

"You stole my Dust," she said.

"I, uh, didn't think it would wear off this fast," Ruby said, scratching the back of her head. She glanced at the other students, then shimmied closer to her team. "Could you, ah, get me a towel?"

"No can do, sis," Yang said.

"Ah?"

"You got yourself into this situation," Blake said, turning her back on her. They knelt down and started scooping up towels. Yang joined her.

"Uh, W-Weiss?" Ruby asked.

Weiss turned away, then raised a finger.

"Just a bit of advice," she said. "Test the Dust next time before masturbating with it."

Ruby blushed as she realized everyone knew what she had just done.

"Y-you can't leave me here!" she called out.

"I can and I will."

WBY left, taking every towel with them. The other students were beginning to laugh now, with Ruby covering herself as best she could underwater.

"YO!" Yang shouted from the front doors. "THE BEACON GHOST'S OVER HERE!"

Ruby could hear a hum from outside as students **** to see her hurried. She needed to get out, and fast.