"I wish that Karyn was here also and that she will be frozen right beside Jonny-boy, until I let them go." There was a familiar flash, both Sarah and Jon were forced to look away and when they looked back Karyn was standing frozen alongside Jon.
"What the he-" Karyn began to say before getting interrupted by Sarah. "Now Karyn, there is a little problem with you and Jon." Sarah paced back and forth, "you both know about this little magic stone here, I've taken some thought on it and I want both of you to remember what power you had, and what power you lost." Sarah began to snicker to herself, "So what I'm going to do is this..."
"I wish Jon, that the only way you can get rid of an erection is by fucking Karyn in the ass until you cum. And I wish you can only ever cum by doing this specific act, no matter what else you may try."
"What??" Jon and Karyn gasped together.
"I'm not going to do that!" Jon said. "I can't... do that to Karyn. I just won't do it!"
"Well then, Jonny-boy, it looks like I may have to give you some motivation!"
"Don't do it Sarah," Karyn begged, "please!"
"I wish for each full hour Jon maintains an erection, his dick will grow one inch longer and a bit wider too, to keep the same proportions." Sarah laughed harder. "Now you'll have to fuck Karyn up the arse, or in a few days you won't be able to move at all!"
"Oh my God, oh my God," Jon tried to turn away but couldn't because of the earlier wish. He was clearly starting to panic.
"Sarah, how could you do this? Wishes can't be undone! It's... it's obscene!"
"You know what is obscene Karyn?" Sarah cackled. "The thought of you trying to straddle a three foot long dick! Ooh, that reminds me. I wish that, while it will probably be painful, Karyn will be able to take Jon's cock up her ass no matter what size it is, without lasting injury of any kind. Don't want Jonny-boy to slip past the point of no return, do we Karyn?"
Karyn fell silent, so Sarah began laughing harder, "Now I'm going to leave, Oh! Yes! One more thing, I think Jon will really appreciate this one, I wish that Karyn is totally naked."
Karyn gasped as the cool air hit her body. Looking down her clothes had completely vanished!
She snickered again, "You'll be able to move again after I leave this house. Oh and Karyn? Jon looks a little freaked out. Maybe you can should him a hug? TTFN!"
With that she left Jon's house and entered the world.
