A 35-year-old married woman, Kohinata Mai, who loves to serve men and has an M-type personality. Mai, who has a lover in secret from her husband, is not satisfied with normal sex and is said to be interested in SM. Today, such Mai is subjected to bondage training, brain-shaking with bondage masturbation, and repeatedly stimulated with an electric massager, a rotator, and a vibrator. When Mai craves a penis, she is vigorously fucked with a large penis insertion, in reverse, and in the train bento position, continuing until she goes crazy with pleasure, and then generously given a thick load inside her vagina.
