Mayu's husband always uses work as an excuse to ignore her, leaving their marriage sexless while her desires grow impossible to suppress. Partly to relieve herself and partly to spite him, she visits an erotic massage therapist roughly twice her age. Though he is not her type, unfamiliar deep-cervix pleasure destroys her self-control. External pressure, fingers, and toys make her convulse, arch, and squirt through repeated orgasms, her slim J-cup body bending under sensations she has never known. Finally she begs for the cock she knows she should refuse. Once penetrated, her soaking pussy is pounded into more back-arching orgasms, and she becomes so addicted that she keeps returning even as the visits drive her into debt.