My brother's girlfriend rubbed her huge breasts against me on the street and then had unprotected sex with me, giving me a crazy orgasm! (Shiraishi Nagisa OPG-024)

Nagisa Shiraishi is a female college student and cosplay idol, and her younger brother's girlfriend. While visiting her brother, Nagisa performs erotic cosplay. Just then, her older brother, Seiichi, a lawyer, returns home. From Seiichi's unusual gaze, Nagisa instinctively senses his attraction to large breasts. One day, she encounters Seiichi on the street and rubs her prized large breasts against his elbow. This ignites Seiichi's lust, leading to her invitation to his room where she uses her large breasts for unprotected sex, leaving him completely defenseless. Nagisa, who is very fond of sex, secretly indulges in breast play and penetration with her older brother, Seiichi, without her brother's knowledge.