SONE-480 — A Rebellious Little Sister Who Grew Into An H-Cup Bust Is Captivated By Her Lolicon Brother's Perverted Dick... Miyu Kohinata

My step-sister, who I ended up living with after my parents remarried, is so cute and has amazing boobs... I'm going to take advantage of our relationship and have her all to myself! I was so excited about this anime-like situation, but she said, "Big brother? Gross... We're not related by b**, are we?" She blatantly hates me... But one day, I looked into her room and saw my sister masturbating... From that point on, we crossed the line and became like close friends with benefits. We're not related by b**, so it's okay to have sex, right?