Karyn Gets It

Karyn was about to rush in and scold Jon for making such a thoughtless wish, but suddenly the urge to go to the bathroom hit, really bad. Reasoning that she could scold Jon later, and that any wish to fix his wish would require more planning than she had time for before the next period, she decided to answer nature's call first.
Rushing into the girls' bathroom, she made a beeline for the toilet stalls. Unfortunately, Sarah McMillan was at that moment dashing towards the exit. "Ohmigod," she screeched as she shoved Karyn off to the side, "I'm gonna be late for class!" With that, she exited the bathroom, never even glancing back.
Karyn stumbled off to one side - unfortunately, she happened to stumble right into the closed shower stall. Its rickety door offered only the slightest resistance before crashing inward, and Karyn hit the wall, knocked the faucet to the "on" position, and fell to the floor.
She realized right away what was coming, and made a desperate attempt to scramble out, but she was too slow, and the water hit her. She got a terrible sinking feeling in the pit of her stomach as she felt the change coming on; she could feel her womb grow smaller until it was gone, she could feel her vagina invert and a bulge begin to fill her panties.
Then it was over, and she frantically unzipped her pants and stretched out the waistband of her panties, only to find what she already knew would be there. Though Karyn looked otherwise just as she had looked since her accidental appearance-altering wish, between her legs was not the vagina she'd always had, but an average-sized penis and pair of testicles. Karyn was now biologically male.
She stared, not knowing what to say or do. All she could think of was her new penis, and the vagina she'd had...just like...Jon's new vagina..., she thought, Jon's new vagina which she'd seen yp close and personal...so up close and so personal...she'd probed and felt it, in fact, when she was making sure there was nothing wrong with it...there sure wasn't anything wrrong with it...it was...perfect...
She suddenly realized what she was thinking, and noticed that her new member was partially erect. Oh god, she thought, am I attracted to girls now? Er...vagina guys, that is? Am I...attractedd to Jon?
Jon, she mused, Jon, a quietly handsome sort of guy...with such a...such a perfect pussy...She snapped out of it again. Could she really be thinking the things she was thinking? What...what woulld Jon think if he knew what he was thinking?