Jeff licked his lips, he was feeling a bit hungry. Looking back at the bratty little girl behind him, he knew exactly what he was going to do. He typed out "WATERMELON" into the transformation field and pulled the trigger. A green beam shot out of the chronivac, and his sister screamed as it struck her right on the head. She got to her feet, dazed and confused.
"J-jeff...what just happened...I feel strange" She said, placing her hands on her now tingling stomach. Jeff smirked.
"Its okay, sis. Soon you'll be a lot sweeter" He said, laughing. Already he could see her stomach begin to push out slightly, and a green dot appear on her nose. The green spread across her face, though she didn't notice yet. Soon her entire face was green, and as it spread upwards to her hair, that too began to clump together and harden, becoming leafier and more plant like. The little girl panicked and tried to push her expanding stomach back in with her dainty hands.
"Jeff, whats happening to me! I'm filling up with something, I can feel it!" She said, as the green now spread down her arms and to her stomach "AHHHH WHY AM I GREEN!". Her skin was now turning two shades of green, with both light and dark green stripes. She was now green all over. She moaned as her stomach continued to fill. Her entire body began to inflate as well, making her rounder and rounder, like a ball. She squealed as she could no longer maintain balance, and rolled over onto her round back. She was at least 4 feet wide at this point, much larger than she was as a little girl. Her massive body sloshed and jiggled with the watermelon juice that filled her.
"J-jeff! You better change me back right now...or I'll...I'll tell mom!" She squealed, feeling the juice within her start to slow down.
"Oh silly, you won't be doing much talking once you're finished."
Her juice began to harden, the sloshing slowing more and more and more. She expanded a bit more as the juice hardened into watermelon pulp. Her inside all disappeared so that she was nothing but fruit. Her green skin also began to harden, becoming smooth and fruit like. Jeff walked over and knocked on his sisters massive body. It sounded as though he was patting a basketball, her skin was now solid.
"Jeff I'm sorry pleeeeease I-" her voice was cut off as watermelon pulp flooded into her face. Her eyes now darted around in fear. She felt her changed progress even more. As she moaned and grunted, her feet and hands began to sink into her fruity body, leaving her completely smooth. She began to reduce in size, shrinking and shrinking until she was the size of a beach ball. Her head began to sink into her watermelon body. As she reached the size of a normal watermelon, her thoughts began to change. She didn't want to be human again, being a fruit felt so good. She just wanted to sit there, enjoy the sunlight, be as tasty and juicy as she possibly could. Her human memories disappeared as her head finally sunk into her body, leaving just a smooth, happy watermelon in its place.
Jeff grinned at his little sister turned watermelon. She looked delicious