Married Sumire takes her first private hot-spring trip in years with a man other than her husband. The enclosed car ride already has her heart racing, and the moment they reach the inn he penetrates her and gives her an immediate creampie—another man's semen entering her womb for the first time. The pleasure of bare cock sets her on fire, and they keep fucking even in the private bath. After dinner come oily toy-induced orgasms, followed by more passionate creampie sex the next morning. She cums repeatedly, forgetting the husband waiting at home.