As he sat with his sister eating nachos and watching TV, a new Chronivac warning message popped up on his computer screen.
It read, "Warning: Fatal error. Chronivac reverting all changes."
***
Downstairs Jeff felt a tingle. "Uh oh," he said.
"What's up?" Emily asked without looking away from the TV.
Jeff stood up and kept going up. He was growing! For a couple of seconds he felt relieved that the Chronivac was finally working again. He was glad to be turning back to normal. Then, he noticed the breasts forming on his chest. "What the hell?" he asked as he cupped his growing mammaries. "This doesn't make any s-" he started to say but stopped when his voice cracked up an octave suddenly.
"What are you babbling about now?" said a noticeably deeper voice from his sister. Jeff looked at her. Her hair was getting shorter, and her face was starting to look more masculine. Her breasts were shrinking too, even as his grew.
"No," he said, but his voice didn't even sound right for a woman. It had a pinched, chipmunk quality to it. It sounded like a little girl's voice. Jeff felt himself swelling all over in strange places. "Stop," he cried in his girlish voice. "Stop it!" He grew even more curvy for a few more seconds, and felt a strange pulling and shifting sensation in his crotch. Then, the changes ceased.
"Jenny, what are you shouting about over there?" said a male voice.
Jenny, apparently Jeff's new name, looked over at the person who had just spoken. Instead of Jenny's sister, a young man, bearing a strong resemblance to her sister, sat in the chair where Emily had been. He looked to be about 16 years old. "Emily?" Jenny said.
"Emile," he said. "Remember, your brother. Been around your whole life. Don't like to be called girls' names, by the way." He picked out another nacho and ate it. Nothing about the situation seemed to be bothering him except for his sister's strange behavior. "Have a nacho and sit down. I'm watching something," he said and went back to watching TV.
Jenny looked down at herself. She was definitely female and very curvy on top of it. It was the curves on top that drew her attention first. Her breasts were gigantic. She looked behind her, noticing her long, dirty blonde hair, and saw that her ass was just as curvy as her chest.
"You're freaking me out," said Emile. "Sit. Have a nacho."
She did as he said, planting her big ass on the couch and grabbing a cheesy nacho. The nacho seemed somewhat bigger as she put it in her mouth.
"Good girl," he said as Jenny swallowed it down.
Jenny needed to get a good look at her whole body. "I'm going to hit the toilet," she said standing up, again feeling weird about her chirpy little voice.
"Eh," said her brother. "More than I needed to know."
Jenny headed for their parents' bedroom again. Every step sent her breasts bouncing and her hips swaying. It was hard to keep moving straight with so much weight flinging around on her body. The bouncing and swaying was even worse on the stairs, but she held tight to the railing and made it to the mirror in their parents' room.
"Fuck," she said as she saw her body. She had the head of a 10-year-old girl on the body of a busty, 20-year-old woman. The face looked vaguely similar to Jeff's face form when he was a boy, but the body was easily recognizable. It was the same sexy body she had given Emily earlier before the Chronivac had malfunctioned. "Great," she said in her little girl voice. "Just great. This has to be some sort of cosmic justice, right?" A brief brush of her hand past her crotch confirmed that she was all female now.
She headed for her room. Inside it was painted pink and filled with the same sort of toys and dolls that used to be in Emily's room. She guessed that Emily's room would now be decorated similarly to how her room used to look when she was Jeff. The warning message on the computer screen confirmed her suspicions.
"'Reverting all changes,'" she read aloud. "Yeah," she said. "But, you fucked up and got it backwards again, you piece of shit," which would have been an impressive statement if it weren't delivered in the voice of a 10-year-old girl. She sighed and threw herself on the bed, her breasts bouncing and bouncing for seconds after she hit the mattress. How did girls put up with these things? she wondered. She mentally kicked herself for making them so big on Emily. This is what she gets for being a breast man. She looked at the Chronivac. Even the red flashing light had turned off. The machine looked dead.
"Now what do I do?" Jenny moaned, putting a hand to her face. She was a little girl with a grown up body, not exactly a dream come true, and she had no way of turning herself back now that the Chronivac was totally broken. "This sucks," she said and wiped away a tear, another new unwelcome addition to her life. She seemed to be a crybaby now. In spite of herself, she sobbed like a little girl. "God, what am I going to do now?"