Charlie was only 15. While he wouldn't be the only one to try out how the other half lived, there were still people who made fun of guys who became girls.
He also heard from a friend who had done some time as a girl that the hormones could really do a number on what, and who interested you. However, Charlie made up his mind. This year his sister would get what she always wanted.
Charlie reminded he was doing this for Rebecca's birthday while waiting in the lobby. Then he reminded himself as the escorted him to the device. As they closed him into the tanning bed like chamber he briefly wondered if he should have gotten her something a bit more normal, like chocolate.
The machine hummed as it activated. Too late now. For safety reasons they were made so they wouldn't turn off once started. Charlie was bathed in a blue light, and started to feel tingly all over. As time passed the sensation grew stronger and began to squirm a little.
Moments after the process started her could feel his growing hair tickle the back of his neck, and his clothes started to become looser as he shrunk. All of a sudden some parts of his clothes started to feel tighter again. Specifically around his chest and butt.
There was a twitch in his crotch as the thought of breasts entered his mind, but it was a lot smaller the he expected. Soon the familiar sense of arousal was gone and replaced with a new sensation. Charlie had a pretty good idea what it was too.
As he changed the lights faded to a dull blue, and then pink. From there it became more intense until the color was a hot pink. There was a ding and the door opened. She was done.
Charlie left the chamber in her baggy boy clothes and went to a mirror. She was cute, with long brown hair, a bit top heavy like her mom and sister. She reached up to touch her breasts,, feeling a shock pass through her. She didn't expect that much sensation from a light touch.
Next a hand went to her groin to confirm. Feeling outside the pants she was certain. Completely flat. She jumped as the door opened and her mom went in. "Congratulations. " she told her mother. "It's a girl!"
Her mom smiled. "Your sister will be thrilled. This is really nice what you are doing for her."
"I just wanted to get Rebecca something really special" Charlie said.
"And you are. However, how you wrap your present is always important. I'm sure Rebecca would love to see you in a skirt with make up on. Do you want to go shopping before heading home? "
Charlie thought about it. Rebecca would love it if she showed up as a girlie girl instead of a girl in baggy boys clothes. But she would also like it if she got to help pick out Charlie's new wardrobe. Shopping with a little sister was one of the things she wanted to do. Charlie decided to...