Whatever you need to cum

One thing that you and Sophia both shared was an utter hatred for your older sister, Andrea. She embodied everything that turned your childhoods into memories better forgotten. Her beauty was all she had going for her. Whenever her performance was lacking, she used those pretty puppy dog eyes of hers to get just enough points to pass that test. If there ever was a fight at home, dad always used to side with her. Mom, well mom was just too scared to do anything, the poor thing. You really ought to show mom the weapons she has in her arsenal.

Back to that bitch sister of yours. Whenever Sophia would visit, Andrea would make it her task to never let her rest. She would push her head into the sand, when you played outside. Rip up the notes you were taking when studying for an exam. One time, she even went so far as to destroy Sophia's most loved Pokémon card, right in front of her eyes. So, yes. She deserved everything that was going to come her way.

The shocked face in front of you has you smiling. "You want me to do what? Sophia asks, looking at you with her mouth agape. Quickly, you push your temptations for that hole away.

"Like I said. I want you to go to Andrea's room, take the sluttiest clothes she has, and put them on." It seemed rather self-explanatory to you. "Yes, I get that. But why? Is this not enough for you?" she asked, and attempted to seductively showcase her own clothes and body. You shake your head. "That is not the point. Yes, if I wanted to, I would take your soft, nubile body, throw it on my bed and fuck the air right out of your lungs," Sophia's eyes perk up with excitement at those promising words. "But that is not what I want, right now," and her shining eyes start to dim again. "That is not what would get me off," you add, clearly lying, but it seems to convince Sophia.

"So, what is it you have in mind? Why do I need to wear her... that cunts clothes?" Sophia growls angrily, looking out of your room, towards where Andrea's room is located. "Well. Will you do whatever I need to cum?"

"Of course!" she perks up and stands up straight with newfound energy and motivation. Something has clicked inside her brain. She wants to make you cum, even more so than to have another taste of your dick.

"Alright Soph. You will go to her room, dress up in her sluttiest clothes and meet me in the living room," you say, seemingly finished with speaking. After a few seconds, you add the following words: "When we next see each other, you will act and talk like her. You will be my Andrea. My little, stupid, slutty Andrea. Only once I cum will you return to being Sophia. Is that all understood?"

Sophia thinks for a moment, then nods. It seems you have challenged her, but she gladly accepts that challenge, if it means you get to relief yourself of your seed.

With a spring in her step, Sophia leaves your room. You smile to yourself, and leave soon after. Downstairs, your mother is waiting for you. "The movie is about to start, baby. You ready?" she asks and pats a spot next to her on the couch. "Never been readier, mommy," you reply, sitting down next to her and putting an arm over her shoulder. Giggling like your mom so often does, she takes the remote and presses play.

Just a couple of minutes into the movies, a sound from the stairs make both of your heads turn. It's Sophia. Both of you are stunned at what you see before you.