You are waiting for your yearly doctor's appointment. A young female doctor invites you into her study. You are a bit confused because you were expecting your usual doctor. She explains that he has changed jobs and you are going to be her patient now. While she fills in some forms, she notices that your face is turning red. She checks your pulse and it's really fast. She is a bit concerned. She listens to your heart beat and her undone coat reveals her naked breasts. She decides that further examination is needed and tells you to change. Your penis seems to be swollen so she needs to treat it. Nothing seems to be working so she tries an experimental method. She takes it into her mouth and sucks on it. Ineffective. Should you try something more invasive? This is the only way! She gets undressed and starts riding you. She is very determined to cure you and gets frustrated because it's not working. Your penis gets bigger and bigger. You suggest that maybe changing positions will help and now your trying to stop your cock from getting more swollen in a doggy position. It's working! You go faster and faster and it's working! You cum inside her and she is so proud of herself that you cured a difficult case.