Derrick took pity of Tanner. Yes, he liked teasing him, and the adjustment for others was necessary to not alert their parents, but maybe he could make a deal with Tanner about the whole thing. After some thoughts he spoke up.
„Okay, Tanner. How about a deal? I will change you back, make you older again, but I stay my current age, at least for the weekend. Then I can decide if I want to stay as I am or go back to my younger age.“
Tanner was easily accepting that. „I have no problem with you being older or even for me to being the younger brother, I just don´t want to be a toddler, Derrick.“
Derrick smiled at Tanner before looking at the chronivac to change Tanners age. But now Tanner had given him an opportunity to change him to any age he wanted, as his only wish was not to be a toddler. But he decided it wouldn´t be fair to go back on their deal so Tanner could be as old as before the whole thing.
He set Tanners age back to 17 years, but decided on one small thing in his favor. Tanner looked curious what took Derrick that long and why he typed so much. But before he could ask Derrick was finished and saved the change.
Tanner felt himself growing older. He was stretching the pull-ups he was wearing, but they never ripped. In fact they started to grow as well, so when Tanner reached his original age and size again they were still in place.
There was a small tingle in his head, but before he could ask Derrick it went away again. So instead he asked, not remembering the tingle: „Why have you let the pull-ups grow with me, Derrick? You didn´t let me stay incontinent, did you?“
Derrick smiled at him before answering: „No, I didn´t. I simply decided you wouldn´t want to stay here naked again, so I made it grow with you. Beside it could have been painful to stretch it until it ripped away. You can go change out of it and get some normal clothes on. And I have changed reality again, so nobody but us two remembers toddler you or that you should be only two years old.“
With an unsure look Tanner left the room to change the pull-ups into normal clothes. He trusted his brother, but sometimes he wasn´t sure if that was right.
Derrick grinned. He had made two small changes to Tanner without him knowing. First, Tanner would trust him, even when sometimes reluctant. The other was that Tanner, along with everyone else, thought Derrick had always been his current age of twenty, so he wouldn´t need to get younger again. He enjoyed his new age to much. He then used the chronivac to adjust his own intelligence. It would be bad if he remained in his old stats, as that wasn´t fitting his age now. But being a bit above everyone his age would be good enough. Not a genius, at least for now, but also not average to his age. He smiled as his knowledge expanded with his intelligence.
Now he would need to speak with Tanner, maybe they could have more fun with the chronivac later.