Jake entered his name, and figured since 'gender' was the first option the programme had suggested, he might as well try that first. To be honest, he had wondered sometimes what he'd look like and feel like if he was a girl, so it'd be interesting on that level too. Locking his door so no one could interrupt, he clicked the gender option. The programme scanned him, and a moment later his clothes vanished, as well as the world around him seeming to blur out.
A weird sensation came over him as the Chronivac started to reshape his whole body. His figure turned curvy and slimmed down, his arms and legs and hands and feet shrank slightly, his shoulders narrowed and his hips widened, and most of his body hair vanished as his skin became smooth. His jawline softened and his voice started to increase in pitch, and his hair lengthened down from his head while it vanished from his face.
By now Jake looked like a very feminine boy, and the Chronivac moved onto making him look and feel wholly like a girl. He felt his nipples perk up and swell to an oddly large size, and they became very sensitive. He breathed heavily and his chest convulsed as mounds of flesh started to swell from it, and he looked down in amazement to see breasts forming before his eyes. Once they had finished growing, he looked past them to his crotch, realizing only his mind and his penis remained from his male body.
The Chronivac now seized on these too. Jake moaned in her high-pitched voice as he saw his penis start to shrink away and felt his balls be swallowed up inside her. Her mind became fuzzy as he felt himself become emasculated. Her sexuality was changing as her attraction shifted from girls to guys. Her reproductive system was changing as her testicles reshaped into ovaries and connected up with a womb which was burrowing a vaginal passage through her crotch. Even her memories were changing, as she started to remember being a girl called Jade, and having been Jake felt like some weird fantasy.
Jade saw reality iris back in around her, and panted as she felt herself come down from the bizarre high of transformation.