Gimai Juurin ~Chijoku to Zetsubou no Shojo Ryoujoku~

My father recently remarried, giving me a beautiful new mother and little sister. My sister was so cheerful and sweet. We had so much fun together! But it aroused a part of me that just had to r*pe her, and for every day after that it got worse. Virgin loss, anal, oral, train molestation, gangbang, S&M, netori/netorare, more. Each day imouto's eyes are opened as she becomes a slave a little more.