Note : It looks like someone else picked up the story from here on…..

By Jack Straw

Arthur Willis was the leader of the next group that Penny would be subjected to. Like most of his classmates, Willis had first begun thinking of attending medical school as a horny adolescent fantasizing about ways to see girls naked. His interest had taken a detour from the usual ob/gyn realm, however, due to his passion for athletics. Although short, skinny, and underdeveloped himself, Arthur was a sports fanatic - always watching, betting on, or arguing about games and players. He was secretly interested in women's sports, because he loved to see fit, confident girls bouncing around in skimpy clothing. He saw himself as a doctor specializing in treating and advising these types of women - examining their muscles, keeping track of their reproductive cycles, and so on. Working closely with Dean Richards, he had developed a program for Penny that had something to suit everyone. Well, everyone but Penny. In fact, Penny very definitely would be doing without a suit of any kind. The girl arrived, as usual, with no knowledge of what lay ahead for her on the particular day. The classroom was empty, however, except for Pete Lyons, one of the Willis team members. "We need to go down to gymnasium for today's session," he told her, hopping down from the examination table on which he was seated with his legs crossed. His casual posture on the instrument of so much of Penny's humiliation reminded her of her powerlessness against these dweebs. "What's so great about the gym?," Penny asked, trying not to show any dread of what might be in store for her. In truth, she couldn't think of anything in the gym that could be worse than this examination room. Maybe she was in for an easy day, today! "You'll see when we get there," Lyons said, brushing past her with an open-mouthed grin and beckoning for her to follow. Penny had dressed a little bit more informally today. She knew Richards preferred skirts and blouses, but since the damn things kept coming off anyway so what did it matter how she started out? It was a minor act of rebellion to show up in a pink T-shirt, Levi's, and tennis shoes, and small shows of defiance helped to keep her morale up. Lyons was walking swiftly down the hallway, like a man with a very definite mission in mind. Penny had to hustle to keep up, despite her instinctive desire to run the opposite way. Clearly one member of this pair was eager to see what was about to happen. A desperate thought took hold in Penny's mind. This was the first time she had been alone with one of the science nerds. If she played her cards right, maybe she could make an ally. Penny caught the redheaded boy's arm at the elbow to slow him down. "You're Pete, right?," she said, looking up at him with shining eyes. "Um, yeah," Lyons replied, clearly surprised at this sudden show of friendliness by the girl he had so enthusiastically helped victimize. "Well, Pete, do we need to walk so fast? We could use this time to get to know each other a little better," Penny said, having adjusted her grip on his elbow so that her wrist was linked around his arm. The young man's mouth worked silently for a minute as Penny savored her breakthrough. Yep, there was no better way for an attractive woman to get control over a man than by pretending to be interested in him, especially if the man was a total loser to begin with. Penny's heart sank, however, as the goofy smirk reappeared on Lyons' face. "I feel like I already know you pretty well, Miss Yoder. From that cute little mole on your left cheek to..." Penny snatched her hand back angrily and proceeded the rest of the way with her arms folded and a scowl on her face. Lyons opened a door marked "Exercise Room" with a flourish and Penny slouched in. The room featured a great deal of weight equipment, treadmills, and the like. The class was gathered around a stationary bicycle, however, and a number of medical machines had been positioned nearby. "Ah, Penny, good to see you," a smiling Arthur Willis said. "Your participation in this project should prove quite interesting for us, and provide some healthy benefits for you." The gleam in the eyes of the other students confirmed Penny's fears. Something bad was going to happen. "What we propose to study is the effect of vigorous exercise on the cardiovascular system of a healthy young woman," Arthur said, addressing Penny but in a voice and tone designed for the class to follow. "We'll be measuring the flow of oxygen and carbon dioxide into and out of your lungs, heart rate, blood pressure, and so on. Now if you'll be so good as to strip to your underwear we can get started." Penny felt a sense of confusion and slight relief. He hadn't asked her to get naked, and there seemed to be no reason to undress her further for this sort of experiment. The class watched intently as she pulled off her T-shirt and struggled out of her narrow-leg jeans. She was only too conscious of how her butt was wiggling and her tits were swinging and began to regret her sartorial choice after all. When she was down to bra and panties, the students descended on her, directed by Dean Richards. One member of the group attached electrodes to her back and chest while another slapped the blood pressure cuff around her right arm. A breathing apparatus, consisting of a mouthpiece and a mask that covered both nose and mouth was strapped onto her head, forming a tight seal with her face. A band to measure respiration was positioned around her thorax, just below the bra. The students then began fiddling with the machines that all these devices were attached to - calibrating them and recording initial readings. As Penny stood by the bike, Dean Richards stepped forward with one more instrument in his hand. It was a slender black probe whose wire plugged into a tiny box with a digital readout. Richards picked up the tube of gel that the students had been using on the electrodes and began smearing lubricant along the length of the instrument. Penny unconsciously crossed her ankles as she noticed the Dean already had a latex glove on. "There!," he said finally, holding the glistening device up for all to see. "Now, if our cyclist would be good enough to step out of those panties we can get underway!" Penny's heart sank. Why did they need her bottomless to test her heart and lungs? She turned to speak to Richards but the mouthpiece and mask made it impossible for her to do more than make unintelligible noises. "Miss Yoder, I trust that all the equipment that you are attached to has not affected your hearing," Richards said pointedly. "The students have a very busy agenda planned and lack of cooperation on your part has not been factored into the timetable. Get those panties off - NOW!" Penny gulped and pushed the waistband to her knees, then let the garment fall to the floor. "Mount the bicycle, please," Richards said. More confused than ever, Penny swung her left leg over the seat and settled herself into riding position. At least while sitting her genitals were off limits to these perverts, she thought. "Excellent. Now stand up on the pedals," Richards said, moving behind her and out of her line of sight. Penny steadied herself with her grip on the handlebars as she straightened her trembling legs. The position elevated her buttocks and her forward lean caused them to spread open. Penny craned her neck to see what Richards was doing, but could only see his left shoulder. "Lower your head, please, and breathe normally." Penny's butt was now the highest point on her body. She stared at the floor, listening to her breath echoing raspily inside the apparatus and to Richards as he spoke to the students. "You gentlemen have already installed the tachometer, odometer, and so on. What I hold in my hand is the temperature gauge." The class laughed. "The basal thermometer allows us to take a long-term reading of the subject's temperature. Because it is wired in to the recorder, its insertion is slightly different than the standard rectal thermometer. Usually a nurse or some other aide would take care of this part, but you should all know how to do it yourselves. You've noticed that I've already prepared the instrument. Next comes the patient. The rectal area is very delicate and must be prepared with care. The first step is to lubricate the external area of the subject, that is, the anus and surrounding flesh. Don't skimp on the lubricant." Penny heard an obscene squirting sound. "A big glob like this might appear wasteful, but believe me, the patient will thank you. Use the left hand to spread the buttocks and hold them open." Penny felt her cheeks being parted. "Then apply a generous layer of gel." Penny stiffened at the first touch of the cold ointment. Richards pressed hard as he rubbed it in, making a wide circle with her tiny anus at the center. "All right. The final preparatory step is the rectum itself. Note that I used my index finger to smear the jelly around the outside. I'm putting the lubricant for the inside on my middle finger so that contaminants don't come in contact with the tube of gel." Penny heard the squirt again. "Now I can use my thumb to get the whole of the middle and index finger coated. There. I prefer to use two fingers rather than just one because stretching the flesh allows me to hit every nook and cranny inside. But watch how I use just one finger for the initial penetration." Penny felt something poke at her sphincter. It was hard, cold, and plasticky. Suddenly it popped in and began sliding up, causing a sensation of fullness. Then it began slowly circling inside her. Penny realized that this man she loathed, who she had traded angry words with, now had his finger in her butt! OUCH! Make that fingers! Penny blotted out what she was hearing as she heard Richards saying something about an "overlapping technique" and "scissors motion." All she knew is that two big, greasy fingers were grinding around in her most intimate area while a class of boys watched! Once Penny was sufficiently greased, Richards shoved the thermometer into her. "Since she'll be exercising vigorously, I need to plant the probe as deeply as possible to keep it from being displaced by the churning action of the buttocks. Luckily, we have a wire attached to the head of the instrument so there is no need to worry about retrieving it once the experiment is done. "Okay!." Richards let Penny's cheeks close and gave her a light slap on the rear with his left hand. "Have a seat, Miss Yoder!" Penny tentatively positioned herself on the cycle seat. It felt weird having something coming out of her butt like a tail. At a signal from Willis she began pedaling. It soon became clear that she was in for some hard work as the experiment leader made her go faster and faster while consulting the readout of the bike's speed. The class shouted encouragement as she poured on the effort until Willis let her level off. Her legs were pumping furiously as minutes went by. She looked imploringly at the young man as her lungs and limbs began to burn. "Keep it up," was all he said, looking at his stopwatch. Penny was soon covered in a sheen of sweat which, combined with her increasing body heat, was causing the thick layer of lubricant between her buttocks to liquefy and migrate to the soft leather seat below her. Her naked genitals were the major point of contact between her briskly grinding pelvis and the lightly textured, rapidly slickening cowhide. The resulting sensation of sexual stimulation came as an utter shock to the angry, exhausted girl. Still, it gave her a measure of self-motivation to continue the exercise. At least, until Willis spoke up. "Sir, I can't tell for sure with her nipples covered, but I believe the subject is becoming sexually aroused." "Well then, check the nipples, Mr. Willis," Richards growled. "We can't have outside factors influencing the experimental data." "Just keep pedaling," Willis told Penny as he reached over her left arm and pulled down her bra cup. Penny herself looked down and could see the verdict. Fully erect. "Let me show you how to confirm your diagnosis," Richards said to Willis. "Lean back, young lady." Penny released the handlebars and sat back. Richards put both hands between her pumping thighs. Without ceremony, he pinched a clump of pubic hair at the bottom of the mons between each thumb and index finger and pulled upward, spreading her labia. There for all to see was a healthy pink clitoris, totally engorged and glistening under the fluorescent lights. Richards gave a snort of disgust, well-acted since this was precisely what everyone had anticipated happening. "The additional element of sexual excitement renders the data we've gathered so far useless. Now we need to wait until the young lady cools off, both literally and figuratively, before we can start again. Mr. Willis did well to identify this potential anomaly and enable us to stop it before it could skew his figures." Willis beamed and accepted the congratulations of his colleagues while Penny hung her head in shame. She climbed down off the cycle and tried not to watch as the seat was wiped dry. It took several minutes for her pulse and respiration to slow to their initial levels - the longest minutes of Penny's life. No one attempted to unhook any of the apparatus, so she had to stand there, bottomless, while everyone waited for her sexual arousal to subside. Eventually, her readings were back to normal. "Mr. Willis, if you'd be so kind as to visually confirm that your subject's body is no longer in a state of stimulation, we can get on with the experiment again," Richards said. Willis made a move for Penny's bra cups. "Just remove it completely, Mr. Willis. Given the young lady's, shall we say "passionate" nature we will need to monitor her body's signals at all times to ensure that we are getting legitimate readings of physical exertion and not simply tracking an impending orgasm." Willis eagerly stripped the garment off the dejected woman. How many times had he tried to get the bra off a date only to get his hand slapped? Christ, this was the most sex he had ever had, and he stood a good chance of getting an "A" for it as well! Willis took a breast in each hand and carefully surveyed the soft nipples. "No problems here, sir," he reported. "Very well. Now check down below." Willis knelt and placed his hands on Penny's thighs, pushing outward slightly. She took the hint and opened her legs wider. She could not look as his trembling fingers delicately opened her cunt. The clit had retracted, but the flesh was still moist and gave off an odor of sexual readiness. Willis' penis instinctively stiffened at this natural signal, and he had difficulty standing up. "No overt signs of arousal," he said in a slightly strangled voice, ignoring the telltale lump in his own trousers. "Good! Now Miss Yoder, this time we'll just have you remain in a standing position in order to prevent any repeat occurrences. Back up on the bike!" Penny climbed aboard, and began pedaling without sitting down. She was acutely aware of the way her backside was presented in this posture, grinding saucily as her legs whirled. At first, the black cable from her thermometer hung down and partially blocked the view of her vagina, but someone had the presence of mind to throw the cable over her right hip, thus ensuring an unobstructed opportunity to study the effects of spirited cycling on the female sex organs. Her newly released breasts also offered the possibility for much interesting research. Hanging directly down, they wobbled in counter-rotation to each other, much like a stripper twirling pasties. Penny's respiration, pulse, temperature and so on were all being silently recorded on the efficient machines, leaving the young men with nothing to do but enjoy the spectacle from every angle. Penny was close to collapsing when Willis gave the signal to stop. She staggered slightly getting down from the cycle, and found many friendly hands waiting to steady her. As she gasped for breath, the men busily disconnected the many devices attached to her body. A casual observer, had he been unaware of the serious scientific nature of the exercise, might have assumed that the girl was submitting to a protracted groping session. Soon all but one appliance was detached. "Bend over and grab your ankles, please," said Willis in a friendly tone, but with his hand on the small of her back for emphasis. Penny quickly found herself in the most humiliating position possible for a naked girl. She couldn't help but look back between her legs at the fully dressed young men standing behind her. Framed between her tan, muscular thighs and her puff of pubic hair, they were pausing from their duties of putting away the equipment in order to watch something getting pulled out her exposed asshole. Penny grunted slightly as she felt the probe moving deep within her bowels. "Nice and easy," Willis said. "Don't try to help it along or you might wind up making a mess on the floor." Penny's face burned, both from her upside-down position and from the utter degradation of what was happening. With the basal thermometer recovered, Penny stood up and realized that she was completely nude. Somehow the electrodes and other equipment had provided a sense of her flesh being covered to some extent, and given a purpose to her level of undress. Now she was buck naked, at the gym, with the guys. Penny wondered at what point the overwhelming embarrassment would fade. She resisted the impulse to cover up with her hands, even though her body craved even a moment's modesty. Penny was left to stand awkwardly while the gear was stored and tried not to pay attention when the shit-smeared thermometer was delicately placed in a pouch marked "BIOHAZARD." Penny was given a small towel to wipe herself down with. All but four of the students now left the exercise room for points unknown. Meanwhile Willis was distributing something to the remaining team members from a cardboard box. Penny could see that it was white circles, about an inch in diameter. "Okay, for the next experiment, we need to attach these markers according to the chart," Willis said. Penny caught a glimpse of a line drawing of a human figure with tiny red X's all over it. Once again the boys swarmed her, peeling the adhesive backing off of the circles and pressing them onto her flesh. They marked every major joint, front, back and sides. Her nipples and the center of each buttock received a sticky circle. The gulping young man who took her left breast into his hand and applied the decal over her aureole put it on crooked. Penny gasped in pain as the sticker was pulled off and reapplied. There was some serious glue on those things! Willis carefully compared Penny's finished appearance with the chart, having her turn around several times. Wordlessly, he handed her her shoes and socks. Something about this gesture pissed Penny off. Apparently, she could put them on now. Since he didn't give her any of her other clothing, apparently it was going to stay off. She had no control over her own clothes! Despite her bad mood, however. Penny looked irresistibly cute in just her little white socks and sneakers. "Come this way. please." The men headed out into the hallway. Penny balked at leaving the room and entering the public corridor. "Can I get a robe or something?" "It's okay, there's nobody around," Willis said with a laugh. "Come on. Richards hates having to wait." Penny double-checked and found the hall empty. The guys walked on ahead, and she scurried behind them, praying that none of the doors along the way would open and that no one would come around a corner. The men stopped when they reached a big set of double doors. Willis opened one side and Penny obediently began stepping through. The rush of fresh air and burst of daylight halted her immediately, however. She was outdoors! She turned to run back in but it was too late. Willis and the others were now coming out, blocking the way and jostling her to one side. The door closed behind the last dweeb and Penny saw with horror that there was no handle on the outside. More to come ………….?

Nightarcher