``Have you had sex with your sister yet?'' Even though she's nearby, my girlfriend's younger sister, who looks sober and serious, clings to me and whispers obscene words into my ear as I get raped! - When he goes to his girlfriend's home for the first time in his life, he meets his younger sister, Kanon, who wears glasses. - As I was waiting for her home-cooked meal, she seemed shy and didn't even say hello, Kanon put her beautiful breasts close to each other and whispered, ``I've learned a lot about naughty things...'' and slowly slipped her hand between my legs. - It's here...