Doctor Yna's CBT treatment

Description: It is a known fact that slaves have low fertility and erection rates, this is true for most of them; the causes can be many, from prolonged time periods in chastity to the constant torment their genitals are subjected to over the years. the luscious lady yna, as the doctor on call must apply treatment under the form of cbt, to immunise the patient. in time, after many, many sessions, our slave will not only withstand all forms of cbt but also enjoy it, getting hard at the slightest form of torment on his genitals..