Greg grinned as he saw an option to Duplicate. It would be neat to have a twin brother! Clicking on the option brought up some choices. The duplicate could be aware or unaware, and be exact or individual. He chose aware, and then individual, and his Accept.
"Hey! My turn now!" He was startled by a voice behind him, and spun around to see a red-haired teenager standing there. It was his new twin brother! Since Greg didn't normally look like he did now it wasn't like looking in a mirror. Still, seeing someone who looked just like he did was a lot more impressive than looking at an image on the computer.
As he stood up, his new 'brother suddenly shoved him so hard he fell backward across the bed! "Hey!" Greg struggled back up, but the twin was already moving the mouse. The duplicate grinned back at him, with an evil look. "I know I'm just a duplicate made by the computer. You shouldn't have left 'aware' on, bro'!" Greg gasped - individual had made his twin an evil version!
Before he could get up, the evil twin clicked something and Greg suddenly shrank. He looked down and realized he was getting younger again. Much younger. Already 8 years old, he looked to his now older brother. "Please, don't make me a baby!"
The evil Greg grinned even wider. "Oh, don't worry. You'll only have a one in a million chance of being stuck as a baby. Assuming I have sex with a girl instead of just jerking off right here."
Greg gasped as he saw the duplicate's testicles start to swell. "No! You can't..." Then everything went black as he dissolved into as thick puddle of whitish liquid that evaporated.
The evil Greg cupped his swollen balls in one hand and hefted them. "Hope you are comfortable in there, former twin brother! As a sperm, you better hope I can keep from shooting my wad into a Kleenex!