'...I could transform my body at will!' Andrew had always been fascinated by transformations in fiction, ever since he'd read books where people turned into animals or werewolves, and seen that show where the boy turns into a girl and back all the time.
When he saw the letters on the card rearrange to read, 'Your wish has been granted,' his heart raced. Part of him knew it'd probably be sensible to go home and change himself, but he couldn't resist the temptation- he wanted to change NOW!
Looking around to make sure no one would see him, he hid behind some of the machines and started to take off his clothes. He pulled his T-shirt off and cast it to the ground, then removed his shoes and socks. His jeans followed, and at last his boxers. He put them all in a neat pile next to the machine, and looked down at his body eagerly.
He knew what he wanted to try first. For so long, he'd wanted to be just like that boy who was also a girl in that show, but he figured he'd like to change one little thing- he wouldn't just snap his fingers and be a girl version of himself. No, he wanted to watch and feel his body readjust itself.
To his surprise, almost as soon as he started to imagine it, his imagination started to enact the process on his body. Prickling sensations ran through his head as his jawline softened, his larynx shrank and his hair started to lengthen down his back. He felt his upper body muscles quake as his shoulders narrowed, his arms and hands turning slightly more small and lithe.
Suddenly, he let out a slight high-pitched pant as his nipples perked up. They rapidly swelled, becoming wider and longer, and suddenly feeling intensely sensitive. When he touched one of them, he moaned, surprised not just by how pleasurable touching them felt but by how soft his chest had become. A twinge raced through his chest, and he breathed heavily as mounds of flesh started to rise on it, the rest of his body (particularly his torso, legs and feet) slimming while his hips and butt enlarged and slightly widened to compensate.
Looking down at his new form, Andrew started to realize that 'he' didn't quite feel right to describe himself. His self perception was shifting with his body- as she became more feminine, the hormones rapidly being produced inside her reasserted to her that she was female. By now, she looked like a rather pretty young woman with a penis.
This last detail soon started to correct itself. Peering over her breasts, he saw his balls move up inside her, the bulge of his scrotum and his erection rapidly starting to flatten into a new feminine mound. She watched eagerly, feeling intense pleasure as his shaft was tugged into her more and more. At last the transformation finished, as his penis reshaped into her clitoris and settled into its hood and his scrotum split open into moist vaginal lips.
Andrea looked at her transformed body and laughed in surprise. 'Whoa, it wasn't a scam?!' she giggled. 'This is so cool! I wonder if I can do it again...'