MIDV-204 While my girlfriend was away, I secretly had sex with my prematurely ejaculating younger sister who seemed to be sensitive to pressure. 7 days of living together Kiho Ichinomiya

Exclusive 3rd edition! First challenge to Kiho Ichinomiya drama! The electricity and gas were cut off at my house, so I ended up staying at my girlfriend's house. She has a younger sister, and this is the first time I've met her, but she seems... wary of me. That night, she was refused sex by her girlfriend, and while she was masturbating, her younger sister saw her! She's my girlfriend's little sister who doesn't seem to be pushy, so maybe I'll fuck her...