There's a shortage of mommy's meds. Special meds to keep her...addiction...in check. No, its not anything like *that.* Not that kind of addiction. This is an addiction that makes her unsafe to be alone with you. Especially after that incident a few years ago, when she saw you jerking off in your room. She had to double her dose to keep from making a big, BIG mistake with your young, big cock!
But now, she's been without for three whole weeks, and its her weekend with you. God, she can barely control herself. She's pawing you, throwing herself all over you, purring at you, touching you, flattering you...kissing you. Touching you more, and more, and more, until your cock is pressing against her, laying on top of her in the bed, humping your horny, sex-addicted mother while she dirty talks about smelling your cum tissues and dreaming about sucking you!