Ai Mukai is a beautiful athlete girl with boyish short hair, a dignified and handsome face, and a slender, macho body with prominent abs, just like a member of a track and field team. She becomes an erotic and cute little sister and engages in a carnal and intimate sex life with her perverted brother! Her tits are teased, her pussy is relentlessly licked, and finally, she is fucked with an oversized, hard cock, which she feels with a look of anguish on her face!
