Boku ni Sefure ga Dekita Riyuu Episode 4

Beit Saki no JK Hen 2

Saki, an aggressive blond girl, and Koharu, a timid bobbed girl with huge breasts, are two schoolgirls who come to hang out in the room of their part-time job buddies at the same coffee shop.

She is curious about the body of the opposite sex and seduces her hero and the two-start having sex in front of Koharu's eyes. From that day on, a strange relationship begins in which Koharu, who is timid and can't say she wants to have sex, stares at the two of them having sex.