Karyn felt the stone warm again in her hands, and felt a pressure in her head rapidly fade as it did so. "Okay, she's gone."
Jon waited patiently from within Sarah's breasts, unable to move or act. Without being directly addressed he wasn't able to speak, and he realized that Karyn left out a critical part of the spell, Sarah's location.
"Wait, Jon, where do you think Sarah went?"
Jon felt the spell preventing him from contacting Karyn drop. "I don't know, what do you think the stone would chose to turn her into?"
"Well," Said Karyn, "If it turned you into these breasts because you were a bra the stone may have made a similar judgment about Sarah."
"Wait, what was the last thing the stone turned Sarah into?"
Karyn's new eyes widened in shock, and she gingerly reached for her pelvis, fingers brushing against Sarah's panties. A familiar voice called up to her.
"Aaah, not again! Get me out of here! Give back my body!"
"Yep, she's back to being a pair of panties. Hold on Jon, I'm not having any repeats from earlier. I wish that Sarah will be limp and unable to move while she is being worn as a pair of panties."