My first complete physical as an adult was when I was 24. Previous to that, the last time I had a physical was when I was probably about 16, and it wasn't nearly as thorough as this one that I experienced. I found this doctor at a local medicenter here in our city and made an appointment to come and see him. I was nervous about this whole experience but since it had been so long, I decided that I should have a complete physical to make sure everything was alright.
When I was called into the exam room, I took a seat on a chair in the corner and waited for the doctor to come in. When he did, he introduced himself as "Dr. Campbell" and seemed very pleasant. At this point in my life, I still hadn't come to terms with my sexuality and I guess I also found him to be quite handsome as well. We talked and he asked me all of the pre-exam questions that doctors do, and then when we were finished, he said that he was going to step out of the room and asked me to strip down to my underwear and socks. After he left, I did as he requested and had a seat on the exam table sitting there only in my boxers and socks.
Dr. Campbell came back into the room shortly after and started off the exam pretty much how I was expecting things to go, Ears, nose, throat, blood pressure and he listened to my heart and lungs. He then asked me to lay on my back on the exam table and that's when things got a bit more interesting. Dr. Campbell started pressing around my abdomen like I remembered, and then as he started pressing around my lower abdomen, I felt my penis start to shift a bit inside my boxers. I didn't think too much about it until he said "You are at that age where we should check you for lumps, Please slip your boxers down to your knees". For some reason, I wasn't expecting that, and when I did, me penis was fully erect and poking straight up as I lay back down on the table. He was very nonchalant about it and just told me to try and relax. As he started feeling my testicles, all I could think about was how embarrassed I was but how I enjoyed this good looking doctor feeling my testicles like that.
That was pretty much the end of the exam. After that he let me pull my boxers back up, and yes, I still had a very strong erection making them tent up. He said that I was healthy, gave me a requisition for lab work and then left the room.
I got dressed and left the clinic but all I could think about was what just happened and how my erection would not go down as I kept playing the exam over in my mind. I ended up going home and masturbating over the experience.
I have actually been seeing Dr. Campbell for 25 years now (I am almost 50) and I still do get a bit nervous when I go in for my annual physicals. They are still a huge turn on for me and I still get erect when he examines my testicles and even more erect when he examines my prostate.