"Oh, no!" he said. He felt himself shrinking!"
Jeff looked down at his body to see the floor creeping up towards him. He was getting younger again! He could see his hands getting stubby and his tummy growing round. But, how? He hadn't touched the Chronivac.
Then, he realized what had happened. "Emily!" he said and noted that his voice sounded more like a baby's than a boy's now. He whimpered. How could she do this to him?
He felt his underwear expand under his jeans. Touching his butt, he heard the crinkle of a diaper. Then, his legs wobbled and he dropped forward onto his little hands. Thankfully, it was a short fall at his new height. Kneeling there on his hands and knees, he felt the changes stop. He was too stunned to move, but he noticed a pair of large feet approaching him down the hallway. He looked up... and up, to see his "kid" sister, Emily, looking down at him, her towering height making her seem like a giant compared to his new size.
"Hey, Jeffy," she said as she crouched down in front of him. "Aren't you the cutest baby ever?" She tickled him under the chin causing him to giggle uncontrollably, which only infuriated him. "Yes you are, Cutie."
He yelled at her. "Ah bah fufth amee," was all that he could babble back to her. Was he too young to even talk now? His lazy tongue probed his mouth but found only soft gums in there.
She tucked her large adult hands under his arm pits to lift him up in front of her as she stood up, his pudgy feet dangling what seemed like dozens of feet above the ground from his shrunken perspective. Hanging there helplessly and totally encased in her strong grip, he knew that he was trapped. There was no way that he could escape from her, and he had no way of communicating with her either. Hopeless tears filled his eyes. A look of concern appeared on Emily's face, and she pulled him in close into her warm embrace, pressing his whole body against her enormous breasts, the breasts he had given her, he realized. She shushed him gently, "Sh sh sh... it's okay, baby. I'm here to take care of you. You're safe with Emmy. It's okay." She gently rocked him, and he felt himself relaxing. The fear subsided, and a strange comfort filled him. He felt safe and protected in her strong arms. There was nothing he could do, but he felt like there was nothing that needed to be done anyway. It was all someone else's problem now, which was unexpectedly calming. He gazed up at her benevolent face and felt at peace.
He was so peaceful in fact that he barely noticed as Emily walked him back to his room and laid him in a new crib that must have just appeared in there when he changed. He felt sleepy. A dinosaur mobile rotated slowly above him.
"I'm going to put you down for a nap now, Jeffy," Emily said as she gently slid a blanket over him. He felt so tiny in the crib staring up at her enormous adult body in awe. He feared her, yet he also felt comfort in knowing that something so powerful and huge was looking out for him. He could sleep easy, he realized, if that much woman was protecting him. His eyelids started to droop. "In case you're wondering, it's true. I did this. There's some new machine attached to my computer that can alter reality somehow. I don't know how it got there, but I wanted an opportunity to try it out without being disturbed. Also, I wanted to test it out a bit on you. I hope you don't mind too much. It's really something. I mean, the settings are really detailed. I was able to make it so that you would be unusually sleepy for an infant, so that I could keep you out of the way for a little while. Enjoy your dreams, Cutie, and don't worry. I'll probably turn you back later. I might even let you try using it yourself." Jeff yawned and shut his eyes completely. "Sleep tight," she said as he drifted off into dreams.