"Alright Jon," Zoe began. "If you're going to be my sister, there are a few things that you'll have to learn. Hopefully, most of them will just come to you naturally as the disease takes it's course-- like, how you want to wear female clothing now-- but from now on I want you to think of yourself as a girl in training."
"I'll try," Jon promised. He was actually very conflicted about the idea; part of him, the part that was still male, resisted the notion. But that part was rapidly losing ground to his growing feminine side, which couldn't wait for his training to be over.
It's just for fun, he forced himself to think. I can always wish myself back to normal later.
"Good," Zoe replied. "Now then; I'm glad that you showed some initiative in wearing women's clothing, but you need to consider a few things. First of all..." she gestured to his legs, which clearly, through the fabric of the fishnet stockings, were still covered in hair.
Jon flushed in embarrassment. "I'm sorry. I..."
"No need to apologize," Zoe said. "You're new and eager. But that really is pretty gross. Before anything else, I want you to go shave your legs."
Jon nodded and turned toward the door, but Zoe stopped him. "And don't put your clothes back on when you finish. I'll want to run a full inspection." Jon was about to object, but Zoe added, "don't worry about being naked, it's just us girls, now...or at least it will be soon enough. Besides, we'll need to do something about your underwear anyway."
He started to turn to the door again, but again Zoe stopped him. "Oh! Also: you might want to use the bathroom downstairs; mom still hasn't managed to clean that mess that you made last night."
"Mess?"
"GPAD doesn't produce regular vomit like other diseases," Zoe commented. "You barfed-up excess fat, muscle, bone and skin tissue; everything that you won't need once you become a girl."
"That's really gross," Jon commented. No wonder I had felt so sick.
"I know." Said Zoe. "Well, what are you waiting for? Those legs aren't going to shave themselves!"
**** *
Jon drew-up a bath for himself, and stripped off his clothing. His breasts remained small and delicate and a part of his masculinity died as he saw just how limp and whithered his penis now looked. For the first time he wondered what it would be like to look at his own naked body and see not a penis, but a vagina.
With that he climbed into the tub, lathered down his legs, and set about shaving them.