I have found myself with some difficulties in having regular bowel movements and needing to get up in the middle of the night to go the bathroom. I am not sure what is going on and it is quite impossible for me to examine the dysfunctional areas myself. I wouldn’t know what to look for or what to do and, although I might not embarrass myself by trying, I am sure I would not find the attempt either a source of satisfactory resolution to the underlying problem or a very exciting thing to do. Being examined by a patient by a firm, skilled and knowledgeable doctor, on the other hand, might do wonders and perhaps, in some small way, advance the frontiers of knowledge, something I have already been trying to assist. My track record seemed like the perfect route to resolving my little problems. When I asked Dr. Gray about it, he readily came to the same conclusion.

Some time ago, I was persuaded by a friend to serve as the model for a medical class. I have a good physical build, making anatomical study all the easier and somewhat pleasurable for most students, and I had posed for anatomy classes in the past. It gave the students a chance to see how muscles worked together and how the body moved in ways that a cadaver did not allow. Today, I entered the room in a small towel to find some 40 students, about 25 men and 15 women, several of whom stood out as exceptionally attractive, waiting for the class to begin. It was not the amphitheater I had been in before but something different and unusual. An examination table with stirrups attached was on a platform in the middle of the room and the floor rose in just three steppe-like rings to a height of no more than three feet above the central floor. The furthest platform level was no more than 10 feet from the central area and that area was large enough to accommodate quite an array of equipment. Tubes and valves, smaller tables and various instruments surrounded the table in the center but I didn’t see any space suitable for posing.

Doctor Gray, who had led me in, said, “Jim, the students have thoroughly enjoyed having you as a model in the past, and their enthusiasm prompted me to offer a bonus class that I think you will enjoy as much as them. And we will no doubt get to the route of your problems in the course of our session.”

I wonder if that was possible given that there seemed to be no way I could pose to help them understand the muscular system, given the abundance of strange gear in the center of the room. Dr. Gray explained, “Jim, this is an experimental class where the students will get a chance to see how the male body responds to invasive treatments and extended examination in the genito-urinary tract and alimentary canal. That’s why we will get direct knowledge of what ails you. So; first, we have to prep you. There are several stages to that beginning with putting you in the right position and ending in a high colonic that will make sure your colon is entirely clean. I have asked some of the advanced students to attend to those tasks. The others, of course, will begin observing your responses.”

Two students, Beverly and Steve came forward and as Beverly removed my towel with a graceful sweep of her hand, Steve led me to the table. I held back for a step but then remembered I had volunteered and that the doctor has actually made it sound intriguing. I also felt the first flush of embarrassment warm my cheeks although it all still seemed a bit mystifying. Not knowing what I would be doing, I felt more self-conscious than usual about being entirely naked.

Steve steered me to the side of the table and gently nudged me so that I was sitting on its side. “You won’t have to worry about getting tired from all that standing and posing this time. You can just relax and we’ll take care of you.” He had an anticipatory look in his eye as he said it.

Beverly gently grasped my thigh and pushed so that I compliantly swung my legs up onto the table. The back of it was angled so that I could recline and have my torso at a 45 degree angle. Steve and Beverly went to opposite sides of the table and in sync lifted my feet and slipped my knees into the stirrups that compelled me to spread my legs quite wide. My exposed butt was right at the edge of the flat part of the table and I suddenly felt extremely vulnerable.

I was amazed at how exposed I felt. I could feel cool air on my butt, especially my anus and the now unprotected area below my scrotum. I could also feel some 45 pairs of eyes staring straight at that part of me. I usually posed to show myself to best advantage but this seemed to have little do with my musculature and more to do with those parts of me that had never been the subject of scrutiny in my previous sessions. It felt like I was being displayed in the least flattering and most objectifying way possible. Oddly, it didn’t feel all bad. My penis had begun to engorge and there was nothing I could do about it. That had never happened before and I moved to cover myself, but Steve quite assertively took my arms and hands, and strapped them to either side of the bed and then did the same to my legs so that I could not swing them back out of the stirrups.

Meanwhile Beverly took an odd looking clear glass cyclinder from a table and slid it down around my penis and testicles. It made a snug fit and I realized that my now fully erect penis filled the cylinders internal circumference almost perfectly. The cylinder extended about five inches above the tip of my penis and to this end she brought down a thin clear hose I hadn’t notice before and attached it to a small nipple on the glass top of the cylinder. She slid it into the cylinder until it just touched the tip of my penis and seemed to enter my urethra ever so slightly. Beverly turned a switch and I heard a slight hiss and felt a sucking motion pulling my penis even further up the cylinder. The small tube, which had gone further into my urethra, was producing a pulling sensation as well.

I also noticed that the cylinder had metric markings on it, and at almost the same time Dr. Jim said, “Beverly and Steve, I want you to keep notes on how high in the cylinder Jim’s penis reaches as we get him ready for the actual examination. You will use the vacuum pump to ensure that his penis stays at that level or higher throughout the exam. Later we will need to remove the cylinder to carry out the third series of exams.” Having my penis looked at was one thing but having it continually monitored for what had begun to sound like a long exam was quite another. I didn’t feel entirely humiliated at the prospect but it did make me feel as if I were entirely at the mercy of others and unable to retain any control over my own body’s actions. It was a strange state and a disconcerting feeling; I had a fear it would get worse before long and a suspicion that the result would be not anything I had ever experienced before.

As the doctor was speaking I noticed that the students had wheeled a small tray over near my bottom and that there was a tube of shaving lotion and what looked like feminine style razors on it. I was trying to guess what they were getting ready to do, having an ominous sense that I knew but couldn’t bear to admit to myself that two women were going to do something so personal and potentially embarrassing as expose my genital area to the concerted gaze of all without any of the adult hair that had come to partially obscure and identify it. If I was right I would soon become just another physical specimen whose genitals and anus presented themselves as anatomical landmarks more than portions of my individual personality. I was more than right when I heard Doctor Gray say, “We will be doing a navel to knee shaving procedure so that all of the muscles that might come into play will be as plainly visible as possible. Twitching and tensing are likely to occur at various stages and we want to observe all such movements carefully. And, of course, Jim’s pelvic area will also be afforded maximum exposure to your observations.”

Two more students, Jennifer and Blake, joined Beverly and Steve and set to work applying a lather to my entire, exposed body from my navel to my knees. At one point they looked at each other and nodded and the next thing I knew they were lathering my calves as well. Beverly kept an eye on the cylinder vacuum during all of this and she and I exchanged a glance after she nodded at the small bead of pre-cum that had entered the clear tube that extended up to the top of the cylinder. The bead slowly rose, sucked up by the vacuum until it emptied into the “U” shaped collecting portion of the tube just beyond the top of the cylinder.

Meanwhile, Steve and Blake helped by pulling my skin taut as Jennifer set about shaving. She was clearly a good medical student since she took her time and was extremely methodical. No hairs escaped her razor as she slowly worked down from my navel, removing every single pubic hair and then gently, with the boys’ help, shaving off all of the hairs that surrounded my anus. Then it was on to my legs and their gradual denuding. I felt a slight tingling around my anus as if it has been opened and was experiencing some form of penetration but it was just the after effect of having the skin pulled taut and the coating of fine hair totally removed.

As Jennifer made her way down to my ankles, I heard another cart being wheeled up to the base of the table. Steve had taken a warm towel and was wiping my body free of any lingering shave lotion as I saw Dr. Gray holding a long tube in his hand. He turned to the group, “This is the tube that I will insert into Jim’s anus and slowly thread up into his transverse colon, at least. It is actually a tube within a tube and this machine will pump water in that the second tube will gradually allow to run back out. It was be a continuous cycle as water enters and leaves, carrying more and more fecal matter and waste material with it. The first pulse contains a cleansing solution of castile soap to get the process going but we will switch to isotonic saline solution after the first 4 quarts have come back out.”

Beverly continued to monitor the penis pump as Dr. Gray lubricated the tube and Steve took a big gob of lubricant and massaged it into my anal area. Jennifer came back with a giant metal syringe with a large, blunt “needle” on it. As Steve helped guide her aim, she inserted the 4 inch probe like needle end into my rectum and then slowly pushed the plunger: I could feel a steady stream of what must have been a lubricant fill my rectum fuller and fuller. Dr. Gray explained, “We will be filling Jim with lubricant fairly often as we proceed; it helps things go smoothly and we have an abundant supply.”

No sooner had Jennifer removed the syringe than Dr. Gray began feeding his tube into my butt. It was about ¾ inch in diameter, and slid in fairly easily. After a bit I could feel it hit something and the doctor backed up, changed his angle, and seemed to make it glide further in effortlessly. The same thing happened again but before too long it looked as at least 2 – 3 feet of hose was inside of me. Dr. Gray nodded to Blake and Blake flipped a switch.

Dr. Gray, “At first, the drainage tube is not activated so all the water will enter but not leave. Then, when we have the first 4 quarts of cleansing solution in, we will begin our drainage.”

I could feel myself slowly getting fuller and fuller. My abdomen began to swell, blocking my view of the base of my penis. A few more drops of pre-cum had made their way to the collection trap and I was beginning to feel as if I was entering a state of slightly altered consciousness. I was much less aware of all the observers and much more acutely aware of the stretching, filling, bloating feelings in my abdomen. Peristaltic waves were beginning to kick in and the doctor said firmly, “Do NOT expel any of this liquid if you know what’s good for you.” I forced myself to retain it and when Blake said all 4 quarts were in, the doctor said that was fine; we will just watch and wait for a few minutes. The room felt incredibly silent. Jennifer was still standing near my left knee with her hand on my thigh, watching where the tube disappeared into my body. I could feel her hand, when a peristaltic wave wasn’t bearing down, and the warmth of her fingers seemed to radiate directly to my cock. I wondered if I would ejaculate at some point and possibly spoil the experiment.

I caught Dr. Gray’s slight nod to Blake and heard another switch come on. I could hear water splash into the receiving bucket, but felt no less full: clearly the water being withdrawn was being replaced by fresh solution from the machine at the foot of the table. The process continued for some time and I’m sure the students could see many of my muscles twitch and tighten, shake and shudder as I experienced this intimate invasion that seemed as if it would never cease. There were strange sensations of currents ebbing through my bowels. The water no longer just pushed against my stomach but seemed to take on a life of its own, like a writhing snake crawling through my colon.

The four helpers and the doctor seemed to confer among themselves from time to time and one result of this was while the machine was doing its work, converting my bowels from a harbor for dark, fetid stuff to a far cleaner place that produced an effluent that looked almost as clear as the fluid entering, Steve and Blake attached glass cups to my nipples. In the center of the cylinders were little rods that had metal tips and as they sucked out the air, drawing up my nipples quite some distance, these metal tips pressed down on my nipples quite sharply. It was then that I noticed that a pair of wires ran from the top of each cup to a device on an adjoining table.

Jennifer now took a bunch of sticky patches, about an inch square, and attached them to the inside, top and outside of each thigh. Four more were attached to the different quardrants of each buttock. They too had wires attached and all the wires ran back to the box on the table.

Dr. Gray nodded to Blake and the hydrocolonic machine came to a halt. Water continued to drain out, though, until it felt like I was empty once again. The doctor slowly slid the tube back out of me. It sent tingles up my cock as it slid past my sphincter muscles for what felt like a minute. “Now we’ll see if he’s as clean as I think he is.” With that the doctor took a proctoscope from the tray, lubricated it, slid it into my rectum and began sliding the two bills apart. I could feel my anus stretch, more and more, more than I thought possible as the doctor slowly increased his pressure. He paused every so often and then resumed until it felt like I just couldn’t possibly open any wider. He left the instrument there, my anus like the welcoming entrance to a dark tunnel. “We’ll take a look with this,” he said as he inserted another probe that had a light at the end of it. I felt it slide in past the first curve as he entered further and further. “Just as I thought, Jim is as clean as a whistle. It’s time to go to phase II.”