Sarah forgot something

As Jenny writhed in ecstasy, Sarah felt strange. She blinked, and when she opened her eyes, she found herself naked and on top of Jenny on the bed. As she got her bearings, her own words came back to her: "I wish that you won't be able to come to orgasm except by having sex with a guy." Sarah gasped as he realized his wish for Jenny to orgasm had turned **her** into that guy she needed to have sex with.