Making Plans

As Jon exited the bathroom, he could hear a chorus of voices softly moaning from behind Zoe's door. A smile crept over his face as he changed direction and headed towards her room. As he opened the door, his smile only grew. "Hey Karyn, check it out," he said, pulling his limp and still slightly dazed dick out of his boxers. "Oh wow..." she whispered. "That is so hot." The two looked on at Jon's sister and her lover on the bed. Athena was lying face up on the bed with Zoe straddling her. The two were sharing a passionate kiss with Sarah's face in between Zoe's legs was eagerly licking at Athena's slit while Amber and Tiffany were just as eagerly sucking on Athena's tits. While Zoe had her arms braced to keep her full weight off of the girl below her, Athena's arms were moving nonstop between running her fingers through Zoe's hair, cupping her ass and pulling Sarah's face even deeper into her sex, and caressing the two faces pressed firmly into her own chest.
"I think they're all having fun," Jon said with a smirk. As if to prove him right, Athena's body suddenly started to shutter in orgasm, her legs wrapping around Zoe's waist, and her hands clawing at her back. "Jon I think I'm ready to go again," Karyn breathed, a lustful glimmer in her eye. "Later, Karyn," he said, giving her a few firm pumps, and turning to leave the room. "First, we need to set things up for tomorrow. I am still curious about just how many girls Zoe's been with" He closed Zoe's door, barely muffling the sounds of passion and continued back to his room. "So, what's this great idea? You don't want to use the stone to just know who she's been with, so what are you going to do?" Karyn asked. "That would be too simple, too boring," he replied entering his room. He was a bit surprised but also very pleased to see that Lisa had already gathered up his discarded clothes and made his bed after their last round of sex and was busy laying out a fresh shirt and pair of shorts for him. "So, what are you going to wish for then?" Jon crossed the room, passing Lisa who gave a slight curtsy with a smile, and sat at his desk, the stone laying in front of him. "I am going to make a wish that transforms each girl Zoe has been with. That way, at school tomorrow, I can see for myself just who she's fooled around with." Karyn rotated her body and looked up at him. "Not a bad idea. That could actually be a lot of fun. But what if she's fucked around with people who aren't at school?"
"That doesn't really upset me. Basically, I just want to know anybody else I want to bring back here in the future hasn't already fucked my sister, and have a little fun while doing it." Karyn smiled up at him. "Ok, so what are you going to do to them?" she asked excitedly. "Well, I don't really know," he replied. Karyn's smile began to fade. "You don't know?" she asked in disbelief. "Jon, come on! There has to be something really wild you could wish for! What if you gave them all huge boobs?" He sighed. "No, I've already seen someone's boobs grow." A shutter ran down his spine as he looked Karyn in the eye. "Right," she replied. "You could just ask to see Lisa do it again. Well there has to be something." Jon released a sigh of relief. "Yeah, Lisa," he said. "Wait! Lisa!" He spun his chair around to face her. "Yes, Master? Can I help you?"
"I sure hope so," he said with a grin returning to his face. "Lisa, I want you to think of really weird and strange, but erotic, changes I can do to the girls Zoe's fucked around with!" Lisa stood still as if in a trance, her eyes starring off into the distance, her head occasionally twitching to the left, and then the right, until finally she said...