Delphine Stephenson, a religious woman, finds herself in a state of turmoil as she's plagued by lustful thoughts of her stepbrother. She prays for forgiveness, but her body betrays her. She sneaks into his room, finding him asleep, his cock tenting the sheet. She can't resist the temptation and takes him in her mouth, sucking him off until he wakes up. Despite his initial surprise, he's eager to fuck his stepmother, and they do so quietly, urgently, trying to contain their pleasure. But their lust is too intense, and they soon find themselves lost in a sea of taboo passion.