Jacob thought about what to do with his little sister who was 15 years old two years younger than him and the only one in the house as of now when a dark thought entered his mind. Make her into a sex slave for him to use. He clicked appearance and learned she has a-cup breasts which he increased to b-cup and changed her height from 4'6" to 4 feet and then moved to race and made her into a human fox girl with the ears and two tails along with some fur. He changed her hair color to red and went to her mentality and made it so she is willing to do things with even if it's wrong, like being fucked by her brother. Only the two of them will know of the changes to her and she'll be unable to use the game, matter of fact only he will be able to unless he dies. The new breast size and height will be known already as a part of the world and no one will question it.
He hit change and headed downstairs and found Keno in her new form. "Like your new form? You did tell me you wanted to be a fox girl." He told her. She blushed remembering before. "Yes but I was a kid back then. I don't want to anymore." She told him. "Don't lie." He tells her seeing through her. "Fine I still wanted to." She told him in a low tone of voice. "But this is a little different than I was expecting." She told him pointing to her second tail, breasts, and height. "The tail was me but don't tell you like it." He pointed out to her. She blushed as he saw through her as usual. "You don't have to worry about the new breast size and height change. no one will take notice of them and will view them as those wear already there." He told her. "The changes in height and breast size were from the race change so don't mind them." He lied to her. "I can change it if you want later for now just try it out as it is for now and only the two of us will know of the race change." He told her. "Ok I'll try it out." She told him as she headed to her room to look at herself.
Jacob headed back up stairs following her as he thought about what to do next...