A good little brother. A poor sister. A little brother who took his sister's virginity by force. But after that, the sister developed a pathological love for her little brother's dick. When she was brushing her teeth or taking a bath, she would take it deep in her throat and give him a blowjob, and whenever she got the chance, she would try to insert it into her pussy. She felt it in her throat, hands, and pussy, and it would run down her whole body as she came. Then the sister tied up her sleeping brother...