Sabrina the Teenage Wicth

Sabrina was furious. She had walked around school during lunch with a sign on her back that read "Still wetting my bed!" that Libby had put there. She had been humiliated.
She stormed home and went straight to her room. She studied her book of spells. She noticed a section whose pages were black with red script on them she had never noticed before. These spells were darker and more sinister than the ones she had studied before. As she read, her lust for **** on Libby grew. She read spell after spell. She could make Libby's hair fall out, make her totally incontinent, make her ass expand an inch an hour for an entire day, make her forget to put on clothes after showering, or even crave male semen. What to do?