``Let's practice sex with my pussy...'' Even though she's nearby, her silent and quiet younger sister clings closely to her and whispers obscene words into her ear as she gets fucked thoroughly! - When I go to my girlfriend's home for the first time in my life, I meet my younger sister Noruka, who is wearing a school uniform and plain glasses. - Even though they are sisters, they are so different... - As I was thinking about this, Ruka-chan whispered, ``Actually, I'm a slut...'' and slowly slipped her hand between my thighs, pressing her huge breasts against me...