MOC-051 My little sister, who mocks me for being a virgin and provokes me with her dick, gets counterattacked with in-vagina ejaculation. Shiraima Reo

One day, I was outed as a virgin at school, ridiculed mercilessly, and returned home feeling utterly dejected. Then my adorable little sister came along and threw a terrifying line at me. "Hey hey, big brother, are you... still a virgin?" Not only my friends but even my beloved little sister was making fun of me!! Shocked to the core, I thought about jerking off and going to sleep, but in the next moment, my sister uttered another unbelievable statement. "...Should I help you graduate from being a virgin?" Ever since then, my days have been completely controlled by my sister….