Come up with a plan that makes sure mom is willing to be my lover

As I kept pondering about the possibilities in front of me I realized one thing. I didn't just want to use magic to **** mom to want me or have sex with me. I wanted to set things up so that she would make the choice to have sex with me as a willing subject. This didn't mean I wouldn't use magic to push her in the right direction, but I wanted mom to want me. I thought of a number of ideas from making it so dad could never get hard, to making it so mom could only cum thinking about me, to making it so dad would never catch my advances or mom would never tell him about them. I just had to decide on what path I would take.