The Moore sisters' diary entries detail their insatiable hunger for each other, from secret trysts in the family home to passionate encounters on holiday. Kate's vivid descriptions of Ursula's tight, eager pussy, and Ursula's accounts of Kate's skilled tongue and fingers, paint a graphic, lewd picture of their incestuous love. Katy's entries hint at her own awakening desires, her curiosity piqued by her sisters' explicit words, leaving readers on the edge, wondering if she'll join their forbidden dance.