My Sexuality Is Distorted By The Fact That My Favorite Mother Was In A Relationship To Have Sex With My Governess. Mary Tachibana

Mary, a novelist and single mother raising her son, uses a dating app for work research and ends up dating a medical student she meets there. He's young, handsome, and shows his S-side, and she gets more and more hooked. Even though she has a son, she gets deeply into sex, forgetting she's a mother and becoming a woman...