Sarah couldn't afford to let that former red-head ruin her games so soon! Unless... unless, as she thought of doing earlier, she made that cow part of the games too!
"Okay then, how about Round Two?" Sarah held the rock tight and spoke concisely into it, "I wish that whenever Karyn tries to use this rock, in her wishes she will unwittingly say Jon whenever she means herself, and Jon's Mom when she means to say Jon, and finally she will unknowingly refer to herself whenever she tries to refer to any one else!"
Sarah smiled an evil smile and looked into her pocket mirror. Show me Jon, she thought, and saw that her perverted little guinea pig had finished his dinner and was heading back upstairs to his room.
"Oops," Sarah talked to the stone, "he can't notice you're gone can he, my little friend? I wish this magic stone was transported back to Jon's room, hidden under his pillow."
The rock vanished from Sarah's hand and she settled back on her frighteningly-expensive super king-sized bed to watch the show.