Briar Rose, the innocent 18-year-old, finds her world turned upside down when her stepbrother's obsession with her mature curves spirals into a hardcore, familial taboo. The petite teen, caught in the web of her stepbrother's perverted desires, becomes the unwilling object of his anal fisting fantasies. As she struggles to maintain her innocence, the lines of their relationship blur, leading to intense, forbidden encounters that leave them both breathless.