Everything you need to understand or teach Story of O by Pauline Réage.
This novel, sexually explicit without being crude, is indeed the story of O, a woman whose love for a man leads her to increasingly submissive behavior - allowing herself to be sexually used, violently beaten, and physically mutilated, which releases her independence of thought, and eventually causes her to abandon her individual identity. As O's submission deepens and becomes more extreme, the novel simultaneously deepens its thematic explorations of the relationship...