Our TG Caption

As soon as the words touch the paper, I could hear a scream out of my sister's room. I ran over to see if she was ok. "Hey Sis, are you ok?" Once I entered her room I was shocked. I was expecting to see my 16-year old younger sister, but instead of that I saw a girl who was around 8 years younger. She saw the shock written in my face and said "I know you did this! What did you do?" She ran over to my room and found the book. She brought it over to her room where I was standing. With rage in her voice she said "What is this? I never saw this before." I just shrugged and looked like I didnt know what she was talking about. She then took a pen from her desk and sat down on her bed. She began writing something inside. I didnt see what she wrote, but upon finishing, I felt some sort of tingling coursing through my body. I as a muscular boy, was used to having a lot of muscles. I felt my muscles disappear. My male features started to disappear. I looked up and saw that everything was bigger than before. After a few minutes of the transformation, it stopped. I looked up and saw my sister smiling. I looked into the mirror in her room and was shocked to what I saw. I was no longer a boy, I was a girl. "So this is what this book does" my sister says. I was still looking in the mirror at my new body and didnt notice that my sister started writing in the book again. I only noticed it when I felt the tingling feeling again. This time it was different. This time it was more concentrated on my brain. I felt memories flood into my head which are not mine, but that of a teenage girl. "I always wanted a bigger sister, and now it is possible due to you giving me the book." Just as she finished talking, I forgot ever being a boy and only being a girl.