After my father remarried, my stepmother's daughter 'Hinako' suddenly became my sister. Soon after the remarriage, my parents went on a honeymoon trip. The stepsister who suddenly started living with me is incredibly cute and I can't take my eyes off her... And now we have to spend three days together... 'Hinako... you're so cute...' 'I think I'm starting to like you too, big brother...' My perverted brother's erect penis makes her climax!
