In "Family Affairs," Cassidy Klein and Lily Rader, stepsisters bound by taboo, can't resist their magnetic pull. Cassidy, the elder, catches Lily masturbating, her fingers deep in her tight, wet pussy. Instead of shame, they share a heated gaze, and Cassidy joins her, their bodies pressing together. Mia Malkova, their unsuspecting stepmother, walks in, catching them in a web of lust and denial.