John wished that all girls over 18 will turn into cyborgs. They'll look the same but each have an owner to look after them. The girls younger than 18 will turn into boys and everyone will remember them that way.
After he made the last wish it radiated outwards throughout the planet. All women became cyborgs that didn't understand their inner workings. Every girl changed to male along with their clothes. Every lesbian couple turned into gay male lovers. Everyone underage person having straight sex disappeared and reappeared in the same room but instead of sex they were just two guys hanging out, maybe playing video games or watching sports.
Jake and Jenny were lucky. She had just turned 18 yesterday and even though Jake was 17 still then wish didn't change anything. A few days sooner and he would have lost his girlfriend and gained a close friend instead.
She was watching tv at his house in the living room when the wish came over her. Like every other girl she was now aware she was a cyborg. Jake was her owner and could command her to do anything that didn't involve physical violence. She felt a little bit colder and knew she was metal underneath her skin now.
Jake walked into the room and saw Jenny. She looked shocked at something. "Hunny is something wrong?"
"Yes..jake. I'm a cyborg now. I feel weird.'' She responded.
"What?excuse me love?"
"Well I'm a cyborg now. I have to do whatever you say and change how ever you want me to."she said looking like she was on the verge of crying.
"Hunny. It's okay. I won't change you without your permission. So if this is true um..how would I even go about this?"
Then something clicked in her brain like a command was asked and she needed to answer it. "I can give you a small example of what I can change. Would you like to see?" And then she covered her mouth. She didn't say that on her own. Her mind just suggested to give him a chance to change her.
"Ummm. Okay jen. Give me a random example "jake said.
He was going to see her change. He was a bit excited but scared. What would change? How would it?
She felt something start to shift on her body. It felt like her whole body got warm once. Then her clothes burned away leaving her naked. Once he gave her a command to change it also started to focus in on an area and got smaller over time. it felt like she was getting massaged there and it felt arousing.