JUFE-028 A defenseless big-breasted sister gets fucked by her super-obsessed younger brother. She thought she was trying to seduce her virgin brother, but... it turns out to be a complete reversal! - Sana Matsunaga

My older sister, Sana, works as a librarian in Tokyo and had come back to her hometown. - Sana is worried about her younger brother, Keiji, who is all about sports and has no interest in women. - When I showed off my cleavage and seduced him by saying, ``I was thinking of letting you touch me,'' the younger brother's pent-up sexual desire exploded! - He uses his arms to grab his sister and fondle her huge breasts! - She gives him a strong blowjob and finally ends up having sex after graduating from virginity and cums inside her... - Just one joke awakens the younger brother's sexual instincts, and he is chased around all the time and begged for raw sex anywhere in the house...