"No, let's do this." You say before you have a chance to chicken out. Your heart is pounding. You've been a boy all your life and you were about to step into a device that would change that.
"All right, just strip and step into the device." The technician instructed.
You blush. "Strip?"
"Well, yeah. The machine emits rays that alters you, your skeletal structure, internal organs, right down to your DNA and your very cells. Inorganic matter just messes with the process. Don't worry, all technicians are required to be medical doctors to do a quick physical after the procedure to make sure there aren't any complications. There is nothing to be embarrassed about."
You turn to look at your sister.
Becky smirked. "Why do I have to leave?" She grabbed the bulge in the front of her pants. "You don't have anything I don't, and it's not like I haven't seen your's before. You do remember when you were three and you ran around the house naked right?" Becky turned to the technician. "He even got outside and declared he was never wearing underwear again."
Your blush deepened at that. "Don't tell her that!" You cried.
"Then stop stalling and start stripping. There's a line behind us." Becky shot back.
Grumbling you took off your clothes and laid down in what looked like a tanning bed.
The technician finished putting the instructions into the device while you laid there. "Now, the exact time for a full male to female transformation varies. To avoid unnecessary stress on the body we can't accelerate growth past a certain point, and this causes those with the genetics for bigger breasts to take a little longer." She gave Becky's breasts an appreciative look. "I'd say you may be on the longer side."
"Are you setting it to give me bigger boobs?" You asked. In the moment you aren't sure if you want her to say yes or no."
"It's all genetics here, so I'm just guessing. Now, sit tight." She closed the device and a blueish purple light came on.
After awhile, you body started to tingle. You felt a stirring down below, as if you were aroused. This was followed by another sensation. It took a moment for you to realize that your dick was shrinking. The space inside of the device was too small for you to move your hands to touch it or anything else. Since your hands were by your sides you did notice that your legs were smooth. The hair was gone.
A strange pressure built up in your chest. You could only assume it was your boobs coming in. Your sister and mom both were top heavy so you were sure you would end up the same. Soon, something tickled your neck. Your hair was growing out.
You weren't sure how long you were in there, and you couldn't tell what was happening outside of the pod you were in thanks to this whooshing sound the device made. After what felt like forever the lights shut off and the lid popped opened.
You wait a moment looking at the partially opened lid, thinking the technician would open it the rest if the way. When that didn't happend, you tentatively lift your hand to push open the top. Sitting up, you look out at the room and are greeted with a sight that you have seen one too many times.
The technician was sitting in your sister's lap. Becky's pants were unbuckled and the technician's hand reached within, playing with a piece of equipment that you now lacked. The two of them were making out too passionately to notice you had finished.
You gave an awkward cough to get their attention. Instead of stopping, Becky began to unbutton the technician's top. "Excuse me!" You said quickly.
The technician quickly stood up and blushed. "Oh! You're finished. You're procedure was on the long side and...uh..."
"We decided to get to know each other." Becky finished with a smirk. "So Charlotte," she stressed the feminine version of your name and held up the bag she had brought from her room. "Ready to see the change of clothes I brought you?"