Levitate to Elevate

This is a book with a short collections of stories inside. Book one is about a woman finding love with her step brother. She overhears her husband fucking another woman in his bed. Book two is about a young woman skipping class to get a nut off. While pleasuring herself, her University's fine Chancellor walks in on her. Book three is about a woman suffering from a broken heart. Her ex has his mean best friend keeping her company, and soon she turns to him for comfort.
Book four is about a woman getting dragged to an orgy party by her younger sister. She ends up slowly opening up to a fine man that turns out to be her sister's man.