He kept scrolling through the various options, getting better and better as the list went on. From what he could tell, the more 'Tame' options were directly at the top, as he passed through various functions that can be related to fetishes near the end of the overall neutral stuff, and at the end of them is when they became a lot more sexual and violent.
After reaching the sexual options, though, Jeff didn't need to go further down. He made his choice as soon as he saw it. "This is going to be good!" He decided to turn her into a sex doll, and specifically make her belong to him. What better way to torture her than forcing sexual intercourse? And he'd benefit directly as well, even if it wasn't for revenge, as he'd have a toy he can actually use.
He started through the options, looking at her physical settings. He wanted to keep her vagina tight, yet lubricated so he can use it easily. He put in that, even if she wasn't actually wet at the time, she'd always have it nice and soft inside her vagina, with it always wet enough to use without pain.
He looked at the model on the side, zooming in on her vulva. He saw it was puffed out, with a smooth vertical slit indicating it's there. He found it cute enough, he decided that, no matter how rough he goes, it'll still retain a similar appearance. Having decided he's done making changes to her genitals' appearance, he begins to scroll further.
He did notice the "Can be impregnated" option, which was left blank. He definitely did not want to accidentally get her pregnant when using her, even if it didn't seem like a risk at all, so he set it to "False" just to be safe before going through some more. Not much else seemed interesting on her physical attributes, so he went to the next section.
He looked through, and it seemed to be about what control she would retain. Individual limbs, bowel movement, all of it. At the bottom was a condition he could add for when she no longer has this control. He decided to type in a condition that only when she's being used would any control be taken, and since he didn't want to be kicked or slapped when using her, he had her lose control of her arms and legs in this instance.
He left it at that though, and moved on to mental changes. Reality Shift was the first one that stood out, and he read through it. "So it'll change reality to be as if this was always the case... Well that doesn't sound like fun!" Though he looked a bit further down, and saw something else. "Actually, scratch that. That seems like a great idea."
He clicked the reality shift option, and then added both his name and Alice's name into the "Aware" box, leaving only him and his sister aware of her changes. He looked through a bit more, and wanting true pain for her, he put that every time she was used, she'd be left unable to walk properly for a varying amount of time ranging from two and nine minutes, based on the length of usage. He also added to it that she'd be in pain every time she'd be used, with it amplifying based on how hard or long he goes.
He looked a bit further, and found another interesting option. "Gaslight scenario? Strange results? What's all this about?" He read through it, the device informing him of how it still uses the changes he put in, but only when he brings up flaws in what she does. "So the transformation goes in stages as I bring things up? Sounds fun."
He looked a bit further into it, reading up that it could be used to disable or enable individual parts of the transformation just by telling her directly whether she should or shouldn't do something, and didn't actually change her until anything is brought up. "Alright, so she's unchanged, but if I tell her something related to the transformation, it changes her. I think I'll..."