A girl from church with whom Jeanette has a love affair one year after her relationship with Melanie ends. Katy and Jeanette have a sexual relationship for several years before they are found out, at which point Jeanette decides to take all the blame so that Katy is not subjected, like Jeanette was, to a torturous exorcism. Jeanette describes Katy, who is nearly as spiritual and devoted as she herself is, as her “most uncomplicated love affair,” and Katy’s relationship to Jeanette ties in with the novel’s themes of women and womanhood, as well as religion and control.