Two days after Kenichi's wife leaves on a trip, the living room is already a disaster. His savior is Kaho, his wife's older sister, who arrives unexpectedly and helps with the housework. Grateful for her kindness, Kenichi invites her to stay the night. While he relaxes in the bath, a naked Kaho suddenly presses herself against him. “What are you doing?” “I thought I'd wash your back.” The softness of her huge tits against him immediately makes his cock hard...