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"Don't be shy! We'll treat you with your back facing!" I want the patient to focus more on sexual intercourse ... With that in mind, I started back sexual intercourse! - The main postures are the back woman on top posture and the back posture ... In consideration of the patient's shame, the treatment is performed in a posture that does not look at the face. - In addition, underwear is wearing a T-back! - * 4 sexual intercourse & 9 ejaculation recording.