Sarah debated for several minutes before coming to a conclusion. "Ah, yes this should be a very fitting punishment for you, I wish that I could change Jon's mind and body in any way when I really desire to. Now, Jon let's get you ready for your new life. I wish that Jon would stand up in the nude and stay standing until I release him." Sarah smiled just thinking about was coming next.
"Jon, I wish to know your darkest secrets," for a moment Sarah froze as her mind was filled with Jon's darkest secrets and fears, and then a perfectly evil smile formed on her face as she thought about an especially juicily secret from Jon's childhood. That until Jon entered preschool his mother would dress her son up as a little girl, because she really wanted a girl, which was the reason that she had another child so soon after having Jon. In fact, Zoe wore most of Jon's girl clothes after he outgrew them, until she stopped dressing him up. There was even a secret photo book of pictures of girly Jon that his mother has locked away that she will threaten to pull out when she really needs to get Jon to do something that he doesn't want to.
"Oh, Jonny boy, I remember how you would not play with me when we were young because you thought I was too girly then you went off and played with Karyn, and now I know why. So, for your half of the punishment you are going to be much more girly and if Karyn wants to be like a big hairy boy then she can really look the part.
"Jon, your mother never stopped dressing you as a girl. The reason why no one stopped her is that she never married your father; she had all her children by sperm donors that she personally selected. When she found out that she was going to have a boy, she made use of her job as a genetics researcher. That's right Jon; your mother is not a lowly legal aid now, but a head researcher at a local lab. She was able to introduce targeted changes to turn your body into what it is now; in fact she has been working on further changing you into a complete girl and hopes to grow you a fully female reproductive system before your junior year. She wants her little Joni to be able to be able to have the full prom experience. In fact, the reason you and Karyn are so close in this new reality is that Karyn's mother works in your mother's lab as her assistant and she has been working on Karyn, like your mother has been working on you."
Now Jon let's get started on your changes, first you will need to get a little shorter, so let make you 5'5" and your measurements are 36D-24-36." Looking at Jon's mostly female body, Sarah found it somewhat funny, what with Jon's penis and mannish hands and feet spoiling the look. "OK, that just doesn't look right. Jon your body will change to look like a young sexy woman with smooth hairless skin, long black straight hair on your head, curly full eyelashes, and neatly shaped eyebrows. Oh, and full sexy lips. Your cock will shrink to the size of a baby's about an inch long and your balls will retract up into your body becoming similar to ovaries in that they produce estrogen not testosterone. Mmm, you can still pee standing up and we can't have a girl like you doing that, so Jon your penis will face backwards and sit a little lower between your legs."
"My, Jon don't you look precious now, I'm sure your mother will love her little darling Joni. But, I don't think you will be able to find anything in the men's department that will fit you anymore, so I will really help you out here. I wish that Jon's clothes were replaced with what a sexy girl his size would have, but in nice name brands and some really special costumes for those truly special times."
Looking around, Sarah saw that a lot of Jon's new clothes were hanging off hooks and over chairs. "Jon, you clothes horse you, I wish that Jon had a room that truly reflected his new life and the space to properly store everything needed."
In a second Jon's room changed from a typically messy boy's room to a very nicely furnished girl's room with what looked like a teddy bear and a few dolls that a girl might save for sentimental reasons. Sarah even noted that it had a fully equipped mirrored vanity table and a large walk-in closet.
"Now, Jon you will remember your old reality, along with the knowledge of your new reality, but not know how these changes were made, just that you made an enemy of someone powerful. I wish that everyone else, but Karyn and Jon's mother remembers Jon as a girl named Joan (Joni) Ann Gibson. Joni, I just realized something important, I need to prepare you for your new life. So, let's make a few changes in your school records, let's exchange gym for gymnastics, dance, and yoga that will help you without you completing against me as a cheerleader. What a lucky girl you are Joni, this means that you will have the honor of having me cheer you on at some of your meets. And, Joni you have taken home economics and cosmetology instead of those boring advanced science and math classes that your mother hoped you would be interested in." Unknown to Sarah, Jon did not forget these classes, because of her earlier wish that Jon would remember his old reality, but he would realize that that was what the wisher believed happened, so he would still be able to go to a good college if he wanted.
"Finally, I wish that Joni will be able to wake-up and be able to move a few minutes after I leave and the first thing, he will do is fuck his wonderfully callipygian like ass with his favorite dildo from the large collection of sex toys in his nightstand for at least twenty minutes while dreaming about Karyn doing it to him. Oh, so they don't go to waste after this, I wish that Joni will feel the need to use or have used on him at least one of his sex toys for thirty minutes each day."
"I now wish I was in Karyn's room with her unable to move until I said she was free." And with that Sarah disappeared from Joni's room.