Karen looked at the Chronivac as she decided what she was going to do to her brother, then she started to remember the thing he used to tease her about and a smile came to her face.
Karen called up her brother;s stats then made the first two changes as she renamed Jeff to Jess and changed him into a female.
In Jeff's room he slept through the changes as he became female.
Karen seen that nothing except what she put in had changed so she looked around and found some bars that set the environment. She set the bars so everyone but Jess and her would think nothing had changed then made it so the environment would change with the changes she makes.
Karen laughed as she started to made the changes to her former brothers life.
In the other room Jess did not notice any changes as her breasts grew to a DD-cup and her PJ changed into a transparent baby doll nightie.
The next morning when Jess got up the first things she noticed were her breasts as her hands went to them she felt a little shock of pleasure at how sensitive they were and that's when she notice the change to the room.
Jess through back the covers and got out of bed so rapidly that it took a sec for her breasts to stop quivering.
Looking around she seen a full length mirror and went over to it. As she tried to sort out the changes in her mind she know she also had to get ready for school.