Rick's eyes darted between the medallion being held by Jacky and down at himself.
"You can't be serious. I can't be a girl!" Rick yelled. "Maybe it didn't work? I didn't touch it very long to her clothes."
"That doesn't matter" Jacky said with a grin. "No turning back now, Rick. Soon, you will be Sharon and I will be Jacob. I'll have a cock and you get to have a pussy." She said the last part with a slight giggle. Rick's face looked like he had seen a ghost.
Rick began to notice that he was getting shorter. Shorter and smaller in general. He could feel his muscles that he had spent so many years crafting dwindle away. "Fuck! No!" Rick cried out in alarm as he watched his arms become thinner. His hands become more slender as his fingernails grew longer.
The hair on his body began to recede, especially over his chest, back, and face, leaving smooth skin behind. He felt a tickling sensation behind his ears and on his shoulders as his hair lengthened and turned a dirty blonde color. The color of Sharon's hair.
Rick still didn't want to believe what was happening to him. He was a man damnit! No stupid magic medallion could change that in his mind! His thoughts were interrupted by an almost pleasurable sensation emanating from his nipples. He was still naked from the sex he just had with Jacky, and so he was given an unobstructed view as his nipples and areolas both grew larger and darker. Rick let out a small gasp and brought his hands up to his chest as his flesh began to push outwards from beneath the nipples. Mounds grew out on his chest and sagged downward slightly - Sharon's boobs showed their age a bit but were still very sexy for a middle-aged woman. Rick certainly always appreciated them. Now, he sported them himself.
Rick was so distracted by his new boobs that he failed to notice other changes taking place on his body. His feet were now smaller and at the ends of legs lacking any of Rick's muscle. His hips had widened, and his thighs had bulked up. His butt was now much larger than before and extended further outward from his frame.
The final changes were then made to Rick's favorite part of his body. Rick's cock had been semi-erect during his transformation. Rick began to feel it quiver slightly and then a tugging sensation could be felt on it and his testicles. Rick brought a hand down as if to keep it from leaving, but his penis only continued to shrink in size as it pulled closer to his groin. Rick could feel the skin in his groin shift around and become very sensitive as vaginal lips formed and his penis was pulled inside, becoming his new clitoris. This experience was quite pleasurable, and Rick couldn't help but moan slightly as his vulva finished forming and some coarse pubic hair grew around his mound. His testicles also pulled inside his new vagina and moved up into his body forming his ovaries.
With that, Rick was now Sharon. His wife. He blinked a few times in confusion and bewilderment looking down at his wife's body, which he now inhabited. He felt so different physically - the weight of his breasts, his lower center of gravity, the void between his legs. Yet he also felt like he had a different kind of sexual energy that was stronger than what he felt as a man.
Rick was so preoccupied with his own changes that he hadn't noticed that Jacky had also finished changing into Jacob. Jacky stood there smirking at Rick with her erect cock pointing straight at him!