Shizue, 43. Her first masturbation experience, first vibrator, first electric massager. Gradually getting used to it, she's surprised by the pleasure, her heart racing at the vibrations resonating through her clitoris. Mai, 48. A pianist by profession, yet harbors a secret life as a masturbator. Even after marriage, she continues to enjoy her sex life, but because she's loud, she quietly indulges in her pleasures inside the piano room. Hiromi, 45. Sex was forbidden before marriage, so she followed the rules and had her first sexual experience at 19 with her husband. Keiko, 52. Started masturbating after her divorce. Recently living with her parents, she enjoys her private time alone for masturbation. Sachi, 45. Became sexually active after divorce, with episodes of masturbating over