I'm going to actually post a version of this as a story if people like it, but this is my ultimate exam scenario. I actually have done a scene very similar to this this hot - open minded guy I met online. Here goes:
In my fantasy, the doctor was a bit older than I am. He is very authoritarian and in stunning physical condition. I am stripped down to my shorts and the doctor finishes with boring parts of the exam. In anticipation of the next part, I am beginning to feel an apprehensive tingle all over my body.
The doctor moves two chrome appendages from the foot of the exam table-, which I recognize as stirrups that are used for gynecological exams on females. My apprehension grows. The doctor picks up the intercom phone hanging on the wall and indicates to the nurse that he is not to be disturbed for the next half hour or so – while sternly eyeing me up and down.
On the other end of the phone, the nurse obviously gives the doctor some news that changes his plans. I'm afraid I just got a call from the hospital and I need to cut your exam short, however we do need to complete the last part as soon as possible so that your insurance will stay current. My schedule is pretty booked for the next couple of weeks, but I could probably fit you in tomorrow evening after the office closes if that is not too inconvenient
The tingle quickly dissipates in my groin but I agree to return the following evening. It would also be best if you abstain from any sexual activity between now and then the doctor adds. The tingle returns as I agree. That evening, in anticipation of my visit the following day, my cock stays hard.
The following evening I show up at the doctor's office just as the nurse is leaving. The doctor greets me in the waiting room and takes me back to one of the exam rooms. Kyle, I need you to strip down to your shorts and have seat on the table while I get the instruments prepped for your exam. The tingling returned. Instruments? What sort of instruments would the doctor be using?
The doctor continues: For a man your age, I generally do a very thorough - rather involved physical exam. Once men hit their forties, there are a number of problems that can occur that can be prevented if they are caught early. We completed the initial part of the exam yesterday, but today we need to finish up with a very extensive genital and rectal exam. Some of the procedures are going to be slightly uncomfortable; some of the procedures are ones that you have probably not experienced before. All of them are going to leave you very feeling very embarrassed and vulnerable, but they are necessary.
The tingling changes to a lump in my stomach and a dull ache in my testicles.
Please remove your under shorts and let's get started.
After I have stripped completely, the doctor has me place my arms above my head and he begins stimulating various parts of my body with a white feather to check my nerve responses. The doctor decides it is necessary to bind my arms behind my back using leather cuffs above my biceps for the first part of the exam so that I cannot interfere with the stimulation. The method of binding causes my chest to stand out and makes my hairy pecs and nipples especially available to stimulation.
A really thorough chest and nipple exam follows and the doctor introduces clamps to each nipple. I am told the clamps are to check stimuli in the nerve clusters connected with erotic activity. An abdominal and inguinal hernia exam and a VERY involved testicular exam in which the testicles and scrotum are examined from every possible angle follows. To add to my feeling of total exposure, an elastic band is wrapped around my scrotum to force it to thin out so that the testicles become more available to the doctor's caresses and pinches.
I am further humiliated as I develop a full, dripping erection. I am assured that this is a perfectly normal male reaction as the doctor rubs his lubed thumb in circles across my piss slit and glans causing me as much pleasurable discomfort as possible.
He comments extensively and in a detached clinical manner on the various physical characteristics he finds. At this point the bindings are removed from my arms and the doctor once again moves the stirrups into position from under the examination table and has me lay face up on the table placing my legs in the stirrups so that my penis, scrotum, perineum and rectum are totally exposed to the cool air. My scrotum cannot contract because of the elastic band that the doctor placed on me earlier.
In preparation for my rectal and prostate exam, the doctor tells me I must take a series of enemas and he wheels a chrome I.V. stand with several enema bags attached from behind a screen in the corner of the room to the exam table. I am tremendously humiliated as he gives me the enemas and I sweat profusely as I attempt the hold the liquid in my guts for the ten-minute interval between infusions. I return from the bathroom for the last time and mount the table and the stirrups again for my rectal and prostate exam.
My cock literally drips during the prostate stimulation and I nearly ejaculate, but the doctor stops short. He then explains that he needs to do a thorough inspection and dilation of my urethral passage. A chrome sound is cleaned with an alcohol swab, lubricated with water based gel and the gel is also applied to my piss slit and liberally worked into it, and then the sound is slowly introduced inch by inch into my throbbing erection until it's most of they way in. At this point it is worked up and down while the exterior of my penis is gently stimulated with the white feather. I literally see stars I am in such sexual agony.
Finally using a vibrating prostate probe that also stimulates my perineum, the doctor masturbates me to a mind-blowing ejaculation.