Again, this was The Substitution Stone, so Karyn's wish wasn't granted the way she wanted it to. Instead, her wish was changed to "I wish Zoe was naked and desperately wanted to lick me."
Suddenly, Zoe was completely naked. It was just as Karyn wanted, except for the next part. Zoe eagerly approached Karyn, but instead of kissing her, Zoe began licking her breasts.
"What the hell are you doing?" Karyn asked.
"Licking you, of course. Mmm, you taste so good," Zoe said, before licking Karyn some more.