Greg wonders how powerful, and how quickly, the potion will work. He'd once mixed it with fertilizer to change his tomatoes into apples, but got some weird sour apples with a juicy inside in return. This, by his knowledge, is the first time he'd seen it tested by a human.
"Well, as secretary for the shop, it's important to know the best combinations of potions" Greg starts saying. He noticed that Rachele is looking slightly taller. The potion is working. "Of course, not knowing what they say is a big hindrance. So let's sit down and go over the language of the Ancients, huh?"
Rachele nods and follows him to the desk. She doesn't seem to be noticing any changes. Greg can hardly see anything either, but he does note that her hair has started to shorten, just reaching past her shoulders at this pount.
Rachele sits down and Greg places a thick folder in front of her. She reaches for it but stops when she sees her hand. Gone are the well manicured and thin fingers she used to have. As she watches, her fingers thicken and the joints pop. The skin starts to toughen up. With a gasp, she realizes her hands are no longer her own.
Greg noticed the gasp and looks up to an odd sight. What was once a cute face with round cheeks is changing before his eyes. Rachele's chin pops out, a diver appearing in the middle. Rounded cheeks slimmed and gained sharp edges as her brow pushed out and her eyebrows became bushy and less maintained. She may not realize it yet, but Rachele is most certainly not going to be a girl much longer.
"Are you alright?" Greg asks, curious to how she's feeling.
" Yeah, uh, I just feel really odd. Look at my hands, they seem like a man's" Rachele says, showing off her gruff hands to Greg. Upon lifting her arms, her sleeves roll down a bit to reveal hair growing up her forearms that weren't there before.
All of a sudden, Rachele groans and leans forward clutching her stomach. As she does, Greg noticed her shoulders spreading and her torso bulking up slightly. He rushes in and holds her, trying to comfort her through her changes.
"What's happening to me?" Rachele asks, her voice deepening noticeably during the sentence.
"I lied to you, I'm sad to say. That potion was a potion of Sex Change. It's working faster than I -
" A POTION OF WHAT?! "Rachele exclaims, her voice cracking a little. With a popping sound, Rachele's spine repositions itself so that the natural curve of her spine straightens out. She looks down at her chest as her breasts, which had already been shrinking, deflated into her wider chest. Rachele throws off her shirt, clearly not caring of Greg sees something risque, to find a manly chest with a few hairs starting to poke out to create a happy trail.
Clearly Rachele is about to freak out, so it's time for Greg to really test out his previous spell. "Relax Rachele, everything is going to be fine." Rachele looks at him with a mixture of shock and fear, but her breathing slows down to a reasonable level. Once again, Greg's spell works better than expected!
"If recommend you take your pants off as well, but I can look away if you need" Greg notes. With a nod, Rachele unbuttoned her jeans and wiggled them off. As she does, the jeans become harder to remove as her hips and was narrow and her thighs swell. With a little effort she removes the ripped jeans.
Greg has to stifle a chuckle as a lean hairy man stands in front of him wearing nothing but a thong. His\her hair is now fully gone, leaving a shaved head of red hair in its place. If not for the thong and package underneath, Greg wouldn't even know that this person used to be an attractive girl. Rachele, or perhaps he should be called Ray, looks visibly uncomfortable in his new body but pleased he still has a vagina.. Until it feels like something is trying to push through down there...
"Oh no, I think I'm getting a thingy thing down there" Ray says, this time causing Greg to bust into laughter. Ray ripped off his thong showing a pulsing and wet vagina. However, sure enough, the clit was growing, first slowly then in pulsing waves. Ray gripped his new dick and couldn't help himself from slowly stroking as he was overcome with new sensations. Greg, still laughing at the situation sees his dick is quite large, definitely bigger than his. By the time it finished growing, the dick was close to 8" and fully erect. Ray closes his eyes and pushes as a sack, complete with large balls, plops out noisily from the vagina. After a few seconds, the lips sealed around the sack and Ray finished his transformation.
"What the fuck?!" He says, confused and pissed with the turn of events. "Whhyd you give me that potion if you knew it would do THIS?"
Greg smiles, wiping the tears from laughter off his face. "Because we've got some experimentation to do now if you want to go back to normal."