Nina finished setting up the Chronivac and decisively hit the OK button. The Chronivac's beam device started to glow and the other girl (let's call her Linda from now on) could already feel something changing. Her proportions squeezed themselves inwards, her flesh becoming pudgier and less bony. "H-hey, what's happening...I thought this thing would change me back to normal?", she asked in panic. "I'm sorry dear", Nina replied, "I tried to find a way but the Chronivac can only change back to normal what was previously changed by it. You were changed by Jeff, who is currently comfortably wrapped around my body." As if praising Jeff, she slowly rubbed a hand across the fabric. "Since there was no way back, I figured it'd be kinda hard on you to suddenly change gender in the middle of your life so I'm giving you plenty of time to get used to it." Linda, in the meantime, had lost most of her hair and teeth, and she looked at her grubby little fingers. She shrank more and more, until nothing but a naked crying toddler was left, which Nina quickly wrapped in a towel for warmth. "Don't worry, you'll have the fun of a lifetime - or should I say second lifetime?", Nina chuckled at Linda the toddler. "And Jeff, you don't need to worry either that I'll do this to you once you change back...one is enough." With two people changed, Nina started wondering what she could do next.