Jeff was sitting in his room messing with other settings on the Chronivac when he felt a sudden heavy feeling wash over him. he briefly lost his vision and found when he could see again, that his room had completely changed. It looked like a girl's room.
"What the- wait" he found his voice sounded off, higher pitched than what he was used to. Jeff quickly looks down to see his body has changed into a woman's, his vision is filled with his or, now her own b-cup cleavage.
"Whoa... what just happened? Did I mess with something on this thing?" Jeff messes with different settings on the Chronivac and finds that it was the random bimbo setting he had set a couple days prior.
"Oh wow, I didn't even think that might affect me, why do I still remember my old self though?" Jeff asked herself.
After a few minutes she realizes it was because she was holding the Chronivac when the change happened, that seems to override any awareness command. "Ok, I'm fine, I just need to change myself back, easy!"
Jeff tries for the rest of the day to try and change herself back with no luck, the Chronivac won't let her reverse a change until the transformation is complete. "No... come on! There has to be something!" She screams before dropping the Chronivac on her new bed. Looking at the clock she finds out it's almost midnight. "Ugh, guess I'll have to figure it out in the morning, my best bet right now is just to hold the chronivac when the next change happens, that way I might be able to fight the mental changes and change back, hopefully..."
"Honey! Remember, you're coming with your mother and I tomorrow!" Jeff hears Diane yell from the other room. "Great, guess I have to deal with that too..." she thinks before falling asleep.