Mike pondered for as few moments and realized something about the experience wasn't quite right. "Hey Jeff, let me double check the settings, my body is different but I still feel like my normal self just... shorter."
Jeff moved over and Mike began checking the settings realizing that Jeff accidentally turned off ALL mental changes, which kind of ruined the whole point of experiencing something new. Mike changed the settings to allow him to feel like a teenage girl mentally and emotionally while retaining his memories and clicked begin.
Mike's brain immediately began rewiring itself, his thoughts and even his old memories seemed to be broken up and sent through a new system of filters as his brain made a whole slew of new connections and abstractions. It was as though his brain was reformatted and putting his knowledge back in place it needed to first be converted to be compatible with the new system.
Instead of his knowledge being condensed into simple facts, everything had tons of contextual data, which made everything interlinked. The simple thought of his car tied back to everything he knew about sedans, the shade of blue, and his emotional experience purchasing the vehicle.
Mike felt a sudden rush as his change in settings allowed his new biology to effect his mental state for the first time, meaning he got to feel all the hormones and saw Jeff with a new perspective.
"Wow Jeff, this is different... I mean it's the exact same... but its totally different at the same time. You should try this sometime..."
With Mike poking around at the controls Jeff thought it would be worth reviewing the settings he chose and why. He did select to change reality, to make a place for the new Mike expecting he may want to go to school with him. Though Jeff explained that he was extra careful to keep Mike's original existence a part of reality as well so that Jeff wouldn't be erased... Technically Mike now exists as both his father and a teen girl at the same time. Jeff didn't alter either of their memories so that Mike's experience will be novel instead of a normal day, but that also means their exact relationship was left up to the Chronivac and remains a mystery until they look.
Jeff explained all this to Mike who looked at his profile, seeing that he has two sub forms under his profile and each form has a separate life full of responsibilities, relationships, skills, and goals.
Mike marveled at his female skills, which included soccer, baking, cheerleading, and biology, with a strong interest in the medical sciences. Each of the skills had an image of a padlock and when moused over explained that without having access to the memories, he will not have her skills.
Mike realized he was missing the game and left Jeff on his own. Jeff was left to his own devices and shied away from the computer, instead playing video games and trying to figure out what he wants... His dad knows about the machine and will likely want to use it again beyond setting things back to normal... actually, there will probably never be a normal again. Jeff mashed the buttons on his controller as his dad's words came from the teenage girl below, screaming at some play as the game went on.
Dinner was awkwardly for Jeff, he had a thousand questions about the future but didn't have the words, or energy to bring them up.
Mike happily filled the silence commenting about his experiences with his new body, "These boobs are perfect, they don't get in the way too much but they are noticeable. Functional, I have functional boobs..." Mike said with a chuckle. "I wonder how much bigger they would get when this body finishes maturing. Boy it feels nice to be trim again. Jeff maybe you should try picking up a more active hobby. I never realized how much space I took up, its going to feel weird going back to being a big bulky man. I think a romantic comedy would be interesting to watch tonight." and on, and on.
Jeff finished dinner and retreated to his room, He was actually looking forward to tomorrow despite it being Monday. He had school and Dad had work so things would go back to normal and he could see how things played out tomorrow night. Jeff played games on his phone hearing his dad binge watching shows downstairs.
Eventually Jeff drifted off to sleep still hearing the TV. Jeff smiled knowing that lack of sleep is more devastating to a teen than an adult, Dad will be in for a surprise when his alarm goes off.