Jenny, the eight year old neighbor next door, had just come home from school, she noticed the note on the door and took it with her to her room, she was alone in the house at the time, her parents would be back in a half hour. She put down her back pack and read the note aloud. "I wish that I had the ideal body of the opposite sex, in it's adult form, with my original head, and that no one would notice this other than me and the writer of this note."
The note ripped up in Jenny's hand and she felt a tingle in her crotch, it was weird she hand never felt anything like this before, she looked down to see a bulge growing larger and larger under her skirt until it suddenly ripped her panties. She lifted her skirt and saw her new penis, still growing larger. She new what it was and what it does from talks with her mother about sex, her mother believed in telling her children early so that they would know not to fool around. She screamed, she was a girl what did she have a penis for????
Still reeling she saw her feet growing larger, they bust out of her shoes, their new large meaty look startling her. Her lower legs started growing larger and longer, muscle piling up on muscle as her legs gained definition that would make any body builder envious. She couldn't stop staring as her body changed, her upper legs grew into matching her lower legs, her torso shot up giving her sudden vertigo as her chest exploded with growth, larger and larger she grew, muscle pounding as it gained more and more mass. Her short arms shot out form her sides, her hands growing nearly four times their original size. Her arms grew tremendous as her neck finished filling out.
The last thing to stop was her, now his, penis. It stood out at a proud twenty five inches, with balls the size of grapefruits. Jenny couldn't believe her eyes, she was huge. She stood up and noticed that everything was smaller in her room. She walked over to the full length mirror in the corner and gasped, her tiny little girl head was now on a behemoth of a body. She now stood at seven feet tall, her mass had to be at least five hundred pounds. She cried, mom was going to have a fit, all her clothes were ruined and now she couldn't stop feeling this weird heat coming from her penis.
