Jeff decided to test the program on himself. He chose to change the size of his genitals. He started increasing the size of his package, but then decided to have a little fun. He looked around to ensure that no one was watching, and set the length of his penis to mere one inch when hard.
Soon Chronivac did it's magic and Jeff felt his package shrink. He examined it while giggling a bit. When he was about to increase the size, he noticed that his tiny penis was hard. "Oh come on, I can't be getting aroused by this." He thought as he put his hand into his pants. He felt his miniature cock and balls around and was soon wanking.
After cumming, he decided to save the changes, thinking that this condition might be interesting for a while.