医生为性冒险夫妇提供小费
A couple seeking to spice up their love life consults a doctor, who secretly films them for his sex therapy research. The doctor advises the wife to invite another woman to join their intimate sessions. The husband, a medical student, brings home a sexy classmate for a steamy threesome. Unbeknownst to them, the doctor is surreptitiously observing from a hidden camera in the room. As the action heats up, the wife eagerly performs oral pleasure on the classmate, while her husband watches and masturbates. The group engages in passionate, hardcore lovemaking, unaware of the doctor's voyeuristic presence. The scene concludes with the wife pleasuring her husband, all the while oblivious to the doctor's continued observation. This explicit encounter leaves the wife feeling energized and satisfied, fulfilling the doctor's purpose of sex therapy research.
