Her big-breasted sister whispers dirty talk and breast rubbing techniques and gets slutty and gets trashed, making her titjob and cumshot 10

Hajime went to her home for the first time to have sex, but she's been dating for a long time and is so serious that she still doesn't let her do it, and she's completely in love with her younger sister Mao, who has an open-minded personality and is full of love and bold personality... Her girlfriend still doesn't let her have sex with her, and her fair-skinned, big-breasted, erotically open-minded little sister... What's more, it's a fussy story about a girl who is seduced by her younger sister, who is whispering dirty words and falls into an affair with sex.