"Once you find out, you can't stop! An intelligent beauty (secretary/teacher/female doctor) who was raised as a young lady can't refuse even if she's fucked by a disparate dick hungry for women from a different world."

A young lady who grew up in a wealthy family, and the men she has dated so far have all been kind men. A cleaning worker who seems to be from a different world approaches him by chance, but he can't control his desire and attacks her. Although he refuses, his crotch becomes wet from the fresh and wild approach that he has never experienced before. Her body is dominated by her estrus, which overcomes her embarrassment, and she begins to seek it out on her own...