"Alright..." you say, deciding what to tell this girl first. "You have...really long hair."
"I have really...long hair..." she repeats robotically. As she speaks, her brown hair magically grows out, the edge of her ponytail now reaching halfway down her back. Your dick stiffens at the feeling of power sweeping through you. You had a feeling this thing changed reality, and it seems it does.
"OK then, next...wait, how old are you?"
"I am...28..." she answers.
"No, you're 18. You're a teenage girl. You're in high school."
"18...teenage girl...high school" she mumbles, and you watch her body de-age by ten years. It's not a dramatic shift, but her skin smoothens out, she gets one or two inches shorter, and she's a bit skinnier. Her face is also less mature-looking, and her glasses are replaced with contacts. She's now in a crop top, sneakers, and booty shorts, though still has those specs and ponytail. The whole room you are in changes; now you are in what must have been her childhood home, but it does not look like anyone else is around.
"Next...you aren't that smart."
"I'm not that smart..." she affirms. Immediately, her body gets tanner, and it's a pretty good tan. Heavy makeup also appears on her face as her ponytail comes undone; she must now care much more about her appearance than her studies. This, combined with shaving ten years off her life, is obviously going to make her anything but a total geek. You could never date a girl like that, anyway.
"Uh, wait, are you straight?" You ask, wanting to know so that if you made her straight, you would be aware it mattered.
"No I a-am...lesbian..." she says, almost embarrassingly.
"That won't do. You're straight, and you're always horny."
"Straight...h-horny..." she says as her body begins to quiver. You notice her hands move towards her pussy, likely as her whole life is rewritten with her as a horny heterosexual instead of a nerdy lesbian. You think you did her a favor.
"You're going out tonight. You're dressed like it."
"I'm...going out tonight..." she mutters as her clothes morph into a hot Carolina blue dress and heels, with a handbag appearing in her left hand and a fancy necklace around her neck. Her hair is perfectly straight and her makeup is even heavier.
"And you're going out with me," you declare, smiling. "Because I am your boyfriend."
"I'm going out with you..." she says softly. "Because you are my boyfriend." As she says this, your clothes change into a tux, but you also get memories of this girl, Sarah, flood your mind as if you have been dating her for years. She's really wild, a spoiled brat, and a dumb bitch, but man does she know how to please (because she is always horny). She's apparently madly in love with you, so that's great! Just...Sarah is a boring name.
"Good girl. And your name is...Nicolette, but you go by Nikki."
"I'm Nicolette...but I go by Nikki..." says Nikki, your memories being updated to match the change (though you remember renaming her). Once that's settled, you clasp the end of the pendulum with your hand, releasing her from trance immediately.
"Babe!" She squeal, striking a sexy pose. "I, like, can't wait to go out tonight! The ball my daddy is throwing is gonna be, like, sooooo fancy!"