Makes Her Very Compliant
Miss Cassidy has been a patient here for awhile and the Dr knows just how to treat her. He gives her an injection and begins asserting his control over her by having her count backwards from 10. By the time she reaches one the treatment is having it's full effect and Miss Cassidy is willing to do anything the Dr asks. He instructs her to remove her panties and masturbate til she has a few orgasms which she eagerly does. While she fingers herself the Dr prepares for the rest of her treatment.