Of course, Sarah knew Becky would be shocked to see Jon dressed as a girl. She'd probably turn and run out the door as soon as she saw him. Of course, Sarah would make sure that wouldn't happen. As Jon made his way downstairs, she made a wish.
"I wish that no matter how disgusted Becky felt, she wouldn't end her date with Jon until at least midnight." Sarah then paused, "I also wish that her disgust would grow throughout the night, but that this disgust would actually turn her on. The more disgusted she gets, the more attracted she would be to Jon."
Sarah watched the two greet each other downstairs. She could tell Becky wanted to bolt, but she held firm. The two then left.
Sarah decided she would spice things up even more, "I wish that at ten o'clock tonight, Becky would grow a giant penis in place of her vagina. She would become a fully functioning male, despite being otherwise female." She chuckled thinking of the pink miniskirt she saw Becky wearing.
Then she added one more wish, "At eleven o'clock, I wish that Jon would turn into a woman, complete with large breasts and tight virgin vagina, filling out the outfit I put him in perfectly!"