Ai secretly feels unsatisfied with her husband, who is serious but has a special propensity, and is unsatisfied. At that time, her brother-in-law Bunta suddenly visits the house. Her playboy brother-in-law sees through her sorrowful heart and skillfully persuades her... She is swept away by his mouth and has a relationship with Ai "only once". Even after that, she refused Bunta's persistent invitations, but her pleasure that shakes her whole body, which she could never experience with her husband, and the stimulation that gouged out her vaginal wall was Ai's flesh. Engraved hard on...
