"Zoe, could you give me control of my body for a minute, please?"
"Hmm? Oh, sure." Jon nearly crumpled onto the floor, but managed to walk his way back the bed and sit down. "Jon, can you still feel for yourself?"
"What do you mean?"
"I mean, can you still feel as if my skin wasn't covering you?"
"Well..." Jon had to think about it and touch himself on different parts of his body. "when you first put yourself on me, it felt like butter on top of my skin. But now... now I don't feel a difference... It's like there's nothing there at all. What does that mean? Did your arm dissolve into my body?"
"I don't know. Here, let me try and take my arm back." Zoe concentrated on Jon's body, and attempted to will her arm back into its proper shape...but to no avail.
"Hm. It won't come out," she said matter-of-factly.
"You don't seem too worried," said Jon, who had yet to come to terms with the fact that Zoe had permanent control of his body.
"Oh I've lost body parts before. I just grow them back!" The stub at Zoe's shoulder then began to grow until her lost arm returned.
"Oh, well that's good. But what about me? You can control whatever I do whenever you want!"
"Well, look on the bright side: now whenever we have sex you'll be in just the position I want you to be in every time!"
"Wonderful..." Jon muttered.
"Oh cheer up! I'm your sister. I won't do anything to embarrass you or hurt you." She put on a pouty face. "Don't you trust me?"
Jon sighed. "Of course I do. It's just weird."
Zoe laughed. "So! Wanna go at it again?"
"Again? I don't have the stamina to go again so soon."
"Pssh. That's where I come in!" With a flick of her hand, Zoe willed Jon's penis to be fully erect again.
Jon looked down and laughed. "Okay. But only if you look like someone different this time."
"Who would you like me to be?" Zoe asked as she walked over and put her arms around his shoulders.