Jeff, curious towards the immense amounts of customizability that this seemingly straightforward transgender package had, decided to have some fun and play around with it. After all, he had just discovered he could undo anything he did as he so desired. He began by first giving himself breasts and nothing else, highlighting the upper torso on the screen and making the adjustments. As a familiar pair of teats grew back in, the rest of him remaining inarguably male, Jeff chuckled to him. He raised his hands once more to his new, firm bosom, and after lifting one up after the other as if they were squishy, soft weights, he slid his hands underneath his shirt and began to play with them on a more direct contact level. Jeff sighed with bliss as he toyed with his now much more sensitive and malleable nipples, and found that the experience was causing him to sprout an erection. Taking notice of this, after he was satisfied with feeling his breasts, Jeff undid the transformation and then changed his genitals.
Similarly to what he had done the first time, Jeff reached in under his pants and began to play around some more with his new body part, getting further acquainted with it than he had when it first became an addition to his physicality. Nearing the point of climaxing, Jeff stopped short and took a breather, not wanted to ruin the experience just yet by literally blowing his load, female orgasm or not. The way he figured, the longer he could experiment with this while simultaneously remaining aroused, the more enjoyable it would be. And, the more relieving the payoff would be, as well.
This went on for a while, while Jeff toying around with the Chronivac in an exponentially energetic and, some could argue, irresponsible way. He changed his face, then he changed it back. He changed his butt and his legs, then he change them back. He changed his left pectoral muscle into a breast and changed his right buttock into that of a woman. On and on this went, with Jeff too infatuated with this raw surge of power to notice that the Chronivac was making loud whirring sounds, desperately trying to cool itself off like an overworked animal. Still, Jeff continued. Blind to how hard he was driving the machine, Jeff felt impervious to any negative ramifications; he was able to switch back to his old self after every transformation. What was there to be worried about?
Suddenly, as he was ready to turn himself into a woman with a penis for the third time, the Chronivac sputtered, the screen glitching out before going dark black. Green text popped up on it, typing out lines of binary as a sound akin to dial-up began to echo ominously. Jeff, confused and annoyed, slapped the side of the device, causing the screen to turn blue. Then red. Then green. Then blue again. Then red again. Like a strobe, it cycled between these three colors, before finally shutting off and turning back on again. From what it seemed, nothing had been broken, and the machine looked as though it was working just fine. Proud of seemingly having solved the issue, Jeff went in to start typing again, only to be interrupted by a strange, new feeling washing over him.