Jon and Karyn continued to have sex in a variety of configurations, trading the dildo back and forth. They actually preferred to not wear it, as without it they could feel the sensations from both sets of genitals. Jon ended up having full-on sex as a woman, and could not find complaint. He wasn't sure if it was that his penis being detached had lessened the amount of testosterone in him or what, but he had come to like his body. He was disturbed a bit by this thought, but looking at Karyn, or himself in the mirror for that matter, aroused him still, so he wasn't too bothered.
Eventually though, they realized that they ought to go home.
"Alright Karyn, time to change me back." Jon announced.
"Awww, but Jon-girl- you're a mega hottie!" Karyn pouted playfully. "Tell you what-"
She began to wish. "Stone: I wish that Jon would be in his normal male form so long as he's wearing his dildo, and in this female form so long as the dildo is removed. I wish that he could retain this female form while putting on the penis by putting a finger in his ass while putting it on, and vice versa when taking it off."
Jon feined anger at this (and he still wasn't prompted to accept), but he was somewhat happy he could keep this admittedly awesome body in some form. "Karyn, why so cavalier with MY BODY?!"
Karyn laughed. "Let's try it out!" She stuck the dildo on him, returning him back to his usual self. "Cool!" she shouted, then put a finger in his butt and yanked it off.
"WOAH!" he cried. He looked down, and was in fact still his old self, sans penis. Karyn reattached the dildo then plucked it off again. He reverted to his female form. She once again stuck a finger in his butt and reattached the penis.
"Damn it, Karyn!" he once again cried. He was a beautiful woman with a large dick. Karyn pulled it off one more time.
"Alright, hotshot," she said with a firm slap on his gorgeous butt, "you put it on this time."
"Thanks," he said, glad she didn't put it on herself, making it real to him and unalterable. He'd be glad for the ability to mess around later. He made it 8 inches long by 6 inches around and stuck it on.
"And now you've got yourself a REAL cock." Karyn chided.
Jon left to find his clothes, and Karyn decided to leave herself a loophole. "Stone: I wish that I can always remove the dildo, no matter who it's on or who put it there."
Jon came back out. "Ready to go?" His pants had noticeably more in the front.
"Yeah, I think so," she replied with a smile.