"Jess, this thing is messing with our heads!" Nikki scowled, but even more alarming to Nikki, she was feeling kind of happy about her tail. Not because she wanted to grow one, but because she had always had one, and it made her sort of unique. Many people even said the beautiful long hair was one of her best features. So maybe it wasn't so bad that---
"Ugh, we have to stop this!" Nikki closed her eyes, trying to breathe.
"Oh, c'mon, aren't you liking this just a little? I mean, I'm really loving my tail. It's like having an extra hand. We can even change other stuff, anything we want!" Jessica tried half-heartedly to calm Nikki while she was actually scrolling through the different options on the Chronivac. "Why worry about it? No one else will, so we might as well enjoy it!"
"Look, I don't want you messing with my brain anymore; no new memories, no different preferences, no nothing!" Nikki demanded sternly, finally getting Jessica's full attention, resulting in a heavy pout.
"Fiiine, I won't do anything else to you. But that doesn't mean I can't change myself, right? I want to enjoy this more!" Jessica whined.
"Just leave me out of it," Nikki snorted, but didn't actually demand that Jessica returned her to her original tailless state. After all, she could do that anytime, right? Why not have a tail for just a little longer...
"You got it!" Jessica grinned, turning back to the computer. "Now, what should I change next?"