Casey returns for treatment but is still too perverted to help. So Dr. Mercies and Orderly Johnnie just use her for their plesure by making her their dog. They give her a dog head, make her do tricks, and take turns fucking her ass. After he feeds her his cum, Dr. Mercies also ties her up in the air and makes her chase a bone she can never catch to symbolize the hopelessness of her situation.
