After about thirty seconds, Amy made her decision. “Could you turn me into a boy?” she asked the store owner.
“Of course,” he answered, “Gender-flipping is one of my more popular requests. Most of them are boys who wanted to become girls. Is there any particular reason you wish to join the male gender?”
“Just curious” Amy replied. “I have two younger brothers at home, and I always wondered what they go through”
“Guess that’s a good a reason as any” the proprietor said as he went through the book. He grinned as he obviously found the page he was looking for. “Here it is. Now, before I continue, there are a few things you should know. First, this spell will do more than just change your gender from female to male. It will also change history in which you were conceived as a male. Everyone around you will believe that you have always been a boy. To them, you will always have been.”
“Can I choose what kind of boy will I be?”
“I’m sorry” the old man answered. “It’s completely random.”
“OK” Amy was slightly disappointed. “Can you change me back, if I don’t like being a guy?”
“That gets to the other thing I must tell you” the man answered in a more serious tone. “Yes, I can change you back. However, there is a time limit. As I said before, this spell will alter reality. At first you not have any memories from this new timeline. However, as time passes you will gain memories of your male counterpart. At the same time, you will lose the memories of your original, female identity. Eventually you will not have any memories you were Amy, including our conversation. As a result, you will live the rest of your life as a male. Do you understand what I’m telling you?”
After a moment, Amy nodded. “I guess so, but how long would it take for me to forget being Amy?”
“A week, give or take a day” the man moved closer to Amy. “Now that you know the risks, do you still wish to go through with this.”
Amy stood there for a few seconds before answering. “Yes, I’m sure. Do you have a mirror where I can watch myself change?”
“I have one in the back room” the store owner led Amy to a storage room in the back of the shop. The girl saw a full-length mirror in front of one of the walls. She gave a long look at her reflection, steeling herself for the change to come.
“I’m ready when you are” she told the man.
The man opened the book which was turned to the page containing the aforementioned spell. He uttered words in a language unfamiliar to Amy. When he finished, she felt a strange sensation go through her entire body. She noticed that her hair was a few inches shorter than before, and it was becoming shorter. She pressed her hands against her chest and realized her breasts were shrinking. Then she reached down to her crotch and felt a strange growth. It took a few seconds for her to figure out what they were. Any doubts she had about the man's powers were gone as she saw her clothing change with her body. She wondered what kind of boy she ... he ... will be.
After about three more minutes, the transformation was complete. The eighteen year-old boy that used to be Amy stood in amazement at his 'new' male body.