Ruby has a gift for Jaune.

"So, Yang, is it possible to give anyone else the power to make wishes with you?" Ruby asked Yang thoughtfully as she got up and patted Jaune's head.

"Eh, kind of... shared ownership is kind of a grey area with genies," Yang remarked, perfectly casual about dicsussing herself as property. She enjoyed the designation after all. "Basically, whoever has my lamp has priority, but you can tie some of that authority to say, another object. How much authority you want to give is entirely up to you, but the one with the lamp always has the most. No one you shared my power with would be able to make any wishes involving you without your consent for example. You could also set some other limits."

"...why exactly are you asking?" Jaune asked Ruby curiously.

"Easy~!" Ruby grinned. "I'm giving you a special place in the hierarchy of the harem!" Ruby grinned at him, clapping her hands together. "You'll be the Master of everyone else, but still subservient to me! Though I might occasionally put someone else in charge of you for a bit... either as a punishment for you, or a reward for them~!"

"...that sounds quite hot actually..." Jaune blushed heavily.

"It does, doesn't it?" Yang agreed with a toothy grin.

"Alright Yang, I wish for Jaune to have a ring that gives him secondary ownership of you, and ability to make some wishes, with these rules: one, he can't make any wishes that violate anyone's own desires without their consent. Two, he can't make any wishes that interfere with any I've made without my permission. And three, he will be required to make at least one wish with you a day, so long as it is viable for him to do so. And I am to be aware of any wish he ever makes."

"Done!" Yang grinned, and snapped her fingers. Purple mist formed around Jaune's ring finger, and condensed into a shiny silver ring.

Jaune could feel the small degree of power in it, and looked at Yang. "Wow..." he remarked.

"Go on, give it a try~!" Ruby grinned. "Try making a wish, and make it sexy!"

Jaune gulped, looking from Yang to Ruby, and considering his options.