JUMP-4047 My brother is my onapet #7. Shuri-chan Shuri Atomi

Shuri, a cute girl as cute as a doll, has a perverted brother who has failed three years of school and is always hiding in her house, spying on her masturbating or bringing her boyfriend over for sex. One day, he sneaks into Shuri's room to try and have sex with her at night, but is found out. From that day on, the brother becomes his sister's slave, and it seems that his sister is forcing him to perform cunnilingus on her like a butter dog on a daily basis... Such a brother and such a sister!