Manipulating Your Sister Subconsciously

(Author's Note: This chapter is inspired by [read 'blatantly copying the idea of'] "The Nerd," a story by Couture over on Literotica. If you're into it, I highly recommend looking it up over there. Also, there's no sex yet. I wanted to make the rules for Kelly for this particular chapter line perfectly clear before moving forward.)

Before getting into any fun, an idea comes into your head.

"Alright, I'm speaking directly to Kelly's body now. Kelly's body, please nod for me if you can hear me."

Kelly nods.

"From now on, whenever I say 'Barbie,' it means I am only talking to Kelly's Body. Barbie, nod if you understand me."

Kelly's body nods.

"Whenever I'm talking to Barbie, Kelly will not be able to hear me. Barbie will follow my every command whenever I talk to her, but Kelly will never understand why. Barbie, if you understand me, spank your ass."

Kelly reaches behind her and gives her ass a hard spank.

"Barbie will always answer me truthfully. Barbie will always get turned on when I'm in the room. Barbie is a submissive slut and will do whatever I say. Barbie, jiggle your boobs if you understand me."

Kelly wiggles her boobs at you.

"Barbie, I find you very sexy. I want you to know that I have jerked off over the thought of you many times in my life. Does that turn you on?"

Kelly nods.

"Barbie, I plan to fulfill my every fantasy by using you. Are you okay with that?"

Kelly nods eagerly.

"Barbie, tell me. Does Kelly find me sexy?"

Kelly brings out her hand and waves it a little in a "so-so" motion.

You frown. "Is that because I'm her brother?"

She nods.

"If I wasn't her brother, would she want to fuck me?"

She nods very fast.

You grin to yourself. "Well, she's going to get to fuck me, whether she thinks it's right or not. Do you find the thought of that sexy?"

Instead of nodding, she brings one hand to her breasts and starts kneeding them. She also brings a hand down to her pussy and gently starts to pet at it. You chuckle.

"Stop touching yourself, Barbie."

Kelly pouts and her hands move back to her sides.

"I want to use your body tonight. I don't want any of those precious orgasms to come from your well-used fingers. Your pleasure is coming from me tonight."

Kelly moans a little. You can see her nipples have hardened and you can smell her sex from where you are.

"Now... Let's make some fantasies come to life."