Jeff grinned evilly as he looked down at the fruity body of his little sister. She really did look pretty good...
Before he knew it, he had picked her up off the ground, carrying the large fruit downstairs to the kitchen. He saw his mother standing by the counter, putting away the groceries that she had bought that day. Perfect. He snuck back upstairs quickly, taking a seat by the chronivac and pulling up the older woman's file. With a few adjustments, he made his mother completely unaware of his sister's existance. To everyone in the world but him, Jeff would have always been an only child. Only he would know the dark truth.
With that done he crept back downstairs quietly, placing the watermelon on the counter with the other groceries while his mother was in the bathroom. He then snuck away, watching from behind a wall as she came back. "Huh. I dont remember ordering this...oh well. It would make a nice addition to dinner tonight..." With that, she picked up the large fruit and set it aside with the food she had been preparing, turning back to the other groceries
Jeff chuckled mischieviously, walking in and acting like nothing was wrong. "Hey mom! Whats for dinner?"
"Oh hey Jeff. It will be ready soon. I just have to finish baking the chicken and chop up that watermelon I got from the store-"
He gave a nod, walking over to the fruit with a smile. "Here, I can help do that. You just focus on the chicken..." As he said this he reached over, grabbing a large knife. This was it. Soon his sister would be gone for good. Reduced to nothing more than a juicy snack for his family to enjoy. And they all would be none the wiser about eating their former daughter...
"Oh thanks hun. Just chop it up quickly. Your father will be home soon..." She shrugged it off and walked away, leaving to get the last of the food out of the car.
Jeff smiled and turned back to his former little sister, raising the knife up. "Heh...so long sis..." And that was the end of that. He brought the knife down quickly, cutting through her rough skin and slicing through the juicy insides, splitting her perfectly in half. He then continued to chop her up, until all that was left were several slices of the juicy fruit
His sister was completely oblivious, having no memories of her human life...until something unexpected happened. The chronivac in Jeff's room suddenly turned active, trying to restore the subject as it sensed her being damaged. "Error! Could not restore! Restoring mental capabilities..." Instantly she woke up, feeling massive amounts of pain as her brother cut into her. Unable to restore her body, it saved her mind as well, forcing her to endure the feeling of her body being chopped to pieces. A truly cruel fate.
As Jeff finished the job, he took one of the slices with a grin, and took a bite of the conscious girl, swallowing a bit of her whole as she kept up the silent screams of agony. "Mmh...delicious-"