The 19th installment of the popular series that examines how far a seemingly innocent female massage therapist will go into sexual territory. Aiko Hirase, the therapist who struggles to turn down customer requests, finds her large breasts repeatedly brushing against the client during the session. She uses the line, "Since they're touching anyway, it's okay to touch them, right?" to push the situation into erotic territory. She doesn't resist at all—instead, she appears to enjoy it. Soon, she strips naked, straddles the cock, and starts grinding her hips, actively leading into increasingly sexual acts. This progression suggests Aiko might just be a horny woman at heart. Her reactions and demeanor throughout the encounter deliver intense temptation to the viewer.