Finally tell them first.

"Well, then I got good news for you," Jaune informed Nora, giving her boobs a squeeze, and making her gasp. "Hey Ren, Ruby, you two come over too," he added.

Ren blinked as Ruby grinned and set her cards down, getting up and grabbing Ren's hand, walking her right up to Nora and Jaune. Nora blinked. "Oh? You got something to tell us?" she asked, pausing her game.

"Indeed I do," Jaune grinned. "Ruby... Show them," he said, making a motion to Pyrrha, who immediately went to grab the lamp from where he had stowed it, and walked back to him, taking great care not to rub it, and thus muddy the waters as to who Ruby's owner was.

Ruby nodded, and Ren and Nora stared in disbelief as her feet started dissolving into silver vapor that billowed out initially, before condensing into her tail. She twirled in the air, stretching. "Ah, I never get tired of that~!"

"Uh, what are we looking at?" Ren blinked in shock.

"...cool, Ruby's a genie, like out of one of those storybooks!" Nora said excitedly, almost instantly snapping out of her surprise, and completely skipping the skepticism phase. "Can I get three wishes? Oh, what should I wish for?" she jumped up and grabbed a surprised Ruby by the shoulders, and started shaking her. "Can we ask for more wishes? CAN WE ASK FOR MORE WISHES!?"

Jaune and Pyrrha glanced at each other, sweat dropping heavily. "...well, this took a turn," Pyrrha chuckled nervously, rubbing the back of her head, still holding the lamp.

"I'm not that kind of genie..." Ruby slurred, her eyes replaced with comical swirls. "I'm a Sex Genie, I can only grant wishes of sex is involved, but I'm unlimited in the number..."

"...oh, that's hot, gimme!" Nora immediately declared, dashing to Pyrrha and swiping the lamp, making Pyrrha gasp in some surprise... Only for Nora to promptly drop it, and blush heavily. "Um, excuse me~!" she said, before rushing to the bathroom, slamming the door behind her.

"...uh, what?" Ren questioned that sudden turn of events as Jaune face palmed, before picking the lamp back up. From inside the bathroom, they heard Nora giving many feminine moans of pleasure.

"I should have seen that coming. I wished that anyone who touched the lamp without my permission would immediately have the urge to drop it, and go somewhere to masturbate... And forget about it upon orgasm," Jaune pinched the bridge of his nose. "Which means we're going to have to start to explain it to her all over again."

"...I'm not letting her shake me again," Ruby puffed out her cheeks.

"...so, I'm guessing this is why I'm a girl all of a sudden?" Ren asked rhetorically.

"Yeah, don't worry, I'll explain everything once Nora's out," Jaune chuckled nervously.