Jeff had always been a leg and ass man, and he viewed this program as a way to get closer to a girl's lower body than ever before. Grinning mischievously, he selected himself as the first subject, but he couldn't decide who else to pick. There were just so many good options! Deciding to make things interesting, Jeff selected "random subject." The screen then showed several parameters, one of which was required: swapping range. Jeff set this to 30 miles, so he'd have some good variety. He then set the device to only target human females, and he made the age range from 10-35. He didn't want to end up with an infant's legs, and he didn't want to be half old lady, either. He set the minimum age to ten in order to make things even more interesting. If he was going to change himself, why not go all-out? With this in mind, he selected the "Additional Swaps" drop-down menu, and started looking at the options.
Intrigued by the mental options, Jeff browsed the list to find something that'd really spice up the swap. He found an option for "Intelligence," and selected it. A second option also caught his eye, called "Personality." It had a slider that represented a percentage above it, which currently read "0%." Pondering for a moment, Jeff set the slider to "70%." He knew that that was a lot, but he really wanted this to be an experience unlike anything else. However, he needed a fail-safe in case his new self forgot how to use the Chronivac. So, he set the time limit for the transformation to 12 hours. He'd swap, enjoy his new body and mind for a while, go to bed, and wake up normal. Jeff also set the transformation to be reality-altering to everyone but himself, so his family wouldn't freak out when they saw him. Finally, he set the transformation duration to 1 minute, and made it pleasurable. He then sat back and reviewed his changes.
Subject 1: Jeff
Subject 2: Random human female between 10-30 years of age within 30 miles of the Chronivac.
Items swapped:
Lower body (w/ clothes)
Intelligence
70% of Personality
Time-Limit: 12 hours
Transformation duration: 1 minute, pleasurable
Subject 1 Aware: Yes
Subject 2 Aware: No
Everyone Else Aware: No
Reality-altering: Yes
Jeff smiled and clicked "Start." A notification box popped up that read "Scanning for subjects, please wait." About two seconds later, the box read "Subject found! Beginning transformation..." Jeff started to chub as he felt a tingling in his legs.
Jeff would soon have the lower body, intelligence, and most of the personality of...