Dan had just started his first year of college. He was quite tall at 6'1, and fairly good looking. But he had very low self-esteem since he was as thin as a rake.
He crawled out of bed one morning and looked in front of the mirror. He sighed as he saw his weedy pathetic body.
"What I wouldn't give to get rid of this body," Dan said to himself. He had only just started to get body hair before he left for college, so that made him look even younger than he actually was, and his dick and balls weren't exactly huge: about 3" soft and 6 long. Definitely not the shortest they could be, but he'd always secretly wanted more.
He showered, had a slice of toast and went to check his mail. After a set of bills and spam mail, he came to a very plain package. Wrapped in brown paper, it was about the size of a textbook.
"Weird, I thought I had all my books," Dan thought as he wandered back upstairs with the mail.
He opened the package, and out fell a CD, USB cable and something that looked like a small gramophone trumpet. The CD read 'Chronivac, v4.0'. Puzzled, Dan plugged the gramophone into the USB port and put the CD into his laptop - after all, what harm could it do?
The screen flashed and a slick loading sequence played, before a table came up on the desktop. It gave various options:
AGE
GENDER
HEIGHT
BODY MASS
% BODY FAT
MUSCLE
GENITALIA
HAIR
SKIN COLOUR
and pretty much anything else you could think of. At the bottom of the screen was a message, inviting him to experiment with the options.
Dan sat there, feeling very confused. Was this some really low-rate version of the Sims or something?
He decided to set age for 19, gender as Male, and height as 6'1 - why not experiment with himself in the game? He set all the options to as he was now, except he lingered over the BODY MASS tab. He had no idea how much muscle he had at the moment, but it couldn't be much at all. He decided to boost body mass up to 200 lbs, and % BODY FAT down to 8%.
Dan then clicked GO at the bottom of the screen, and a timer came up, counting down from one minute. Dan was slightly confused - did it really take this long to program a computer character?
When the timer got down to 50 seconds, he started to feel very warm. As it reached 30 seconds, his clothes had started to feel very tight, and he looked down to see his body expanding underneath them.
Dan raised his head towards the ceiling and roared as his clothes ripped away from him, and as the counter hit 0 he looked at himself in the mirror. Where there had once been a puny, thin guy was no a muscular young man, with rippling abs, spherical pecs and big biceps. Dan smiled a cocky smile, and thought "What else should I change?"