This role-play is performed by adults. It's been two days since I saw off my wife who went on a trip. The living room was already in disrepair and was beyond repair. The savior who appeared there was his wife's older sister, Kaho. Although Kenichi is surprised by the sudden visit, he is forever grateful to Kaho for helping him with the housework. That night, after promising to stay overnight as a way to return the favor, Kaho attacks Kenichi while he is relaxing in the bathtub. ``What are you doing, sister-in-law!?'' ``I was thinking of letting you wash my back.'' The softness of her big breasts pressed against my back made my erection rise.