Shelly Becomes a Test Subject Ch. 01

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A girl volunteers for sexual response testing in a lab.
3.5k words
4.36
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12

Part 1 of the 2 part series

Updated 08/09/2023
Created 07/31/2023
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Shelly Becomes a Test Subject

Ch. 01 of 02

by SpankDoc5

The following story is fiction, and all names used are fictitious and bear no resemblance to any person living or dead. It was published many years ago by me under a different nom de plume, and has been re-edited and updated.

This story describes the use of an electro-stimulation unit. Do not try any of the described techniques unless you have a thorough understanding of electrical principles and have been instructed in the safe operation of such a unit! All characters are over age 18.

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Shelly Heath walked into the Physio-Lab, Inc. offices a little after four p.m. on a sunny Thursday afternoon in early October. Shelly was a 21-year-old junior at the nearby university, who was enrolled in the business program. She was single, with no steady boyfriend at the time.

A flyer on the bulletin board in the student dorm where she was a resident assistant had asked for volunteers for a grant-funded research program attached to the university's physiology and physical therapy programs.

The flyer announced that students were sought for two to four hours of their time so that various physical characteristics could be studied. Shelly had a bit of spare time on her hands, being the first part of the semester. Since she was athletic, she figured that the research could someday help her and others with sports injuries and subsequent rehabilitation.

Upon entering the clinic, Shelly was greeted by a receptionist, a pleasant woman maybe a few years older than her, who smiled and handed her a health questionnaire and a waiver form.

After filing out the usual health history questions and scanning the waiver quickly (it all looked the same no matter what form it was) she signed them and handed them back to the receptionist. After a brief wait as she read a health/fitness magazine, a young man called her in.

"Miss Heath? Would you come in please?" asked the pleasant looking man in a white lab coat, who Shelly mentally gauged to be about the same age and fit. Shelly followed him through the door to the right of the receptionist and down a short hallway. At the end of the hallway, they went through another door with a sign saying "Authorized Personnel Only."

Inside was a larger hall that was partitioned off with high cubicle-type room separators. As they began to walk to the left, Shelly noticed a low murmur of activity consisting of various noises, grunts and low-level conversation being spoken in short sentences, almost like commands. Some of the cubicles she passed had curtains stretched across the openings, and a few did not.

As she passed one open curtain, she noticed a woman on an exercise bicycle pedaling furiously and showing obvious signs of exertion.

Suddenly Shelly noticed something odd...the woman was wearing only a pair of skimpy panties and was completely naked from the waist up! There were some sort of clips with wires attached to her nipples, but it was unclear what their purpose was. Calmly watching the woman was a young man wearing a white lab coat and making notes on a clipboard.

Shelly was about to ask her escort what they were doing in that cube, but he suddenly pulled a curtain aside and asked her to step in.

"This is where we'll be testing you today, Miss Heath," said the young man. Shelly noticed that the cube was about ten by fifteen feet in dimension, with an exam table, a counter with various instruments on it, and some other devices that looked like monitors and wires, etc., on a rolling equipment cart.

"Before we start, we have to give you a quick exam to ensure you're in good enough shape to be one of our study subjects," the young man stated. "Please take off your clothes and have a seat on the examination table, and someone will be with you in just a few minutes," he said pleasantly.

Shelly wasn't expecting to be undressed and examined, but rationalized that since this was a physiology study, it would stand to reason that access to certain parts of her body would be necessary.

Without much of a thought, Shelly undressed down to her bra and panties, figuring that would be sufficient. She pulled back her auburn hair into a ponytail, letting it fall back over her taut, youthful body. She prided herself on her fitness and was proud of her muscle tone.

She sat on the exam table, looking around at the sundry devices, wall charts, etc., when she became aware of some muffled noises coming from the adjacent cubicle. She quietly slipped off the exam table and padded over to the corner in her bare feet, trying to listen more closely to what was taking place next door.

She saw a sliver of light piercing a separation in the modular wall joint, and pressed her eye up to it. What she saw amazed her.

To her left was a girl who looked like she was Shelly's own age, wearing a white blouse under shoulder straps of a dress with vertical pink stripes gathered at the waist. She was holding a clipboard on which she was writing, as well as a small black box which she cradled between her abdomen and the lower end of the clipboard.

On the floor in front of the girl, and in profile to Shelly, was a young man who was doing pushups and showing obvious signs of exertion. The boy was naked except for an athletic supporter, which gave both Shelly and the female monitor a bird's-eye view of his clenched buttocks.

Shelly blinked as she noticed a pair of thin black and red wires leading from between his ass cheeks to the black box held by the monitor. A similar pair of wires ran to the box from underneath the jockstrap's pouch holding his genitals.

As she pressed her eye to the crack, she could see the young man straining to squeeze out more pushups. The young girl finished writing and looked down at the boy intently.

"Keep trying, David, don't give up. You know what will happen if you give up, don't you?" asked the girl, with what seemed like an amused grin.

"Y-yes, ma'am," David huffed.

'Ma'am?' thought Shelly. He's calling this girl 'ma'am'? And what was her comment all about, anyway? Shelly was captivated by the scene in front of her even though she didn't completely understand it.

After squeezing out one last pushup, the boy collapsed to the floor, huffing and puffing. "I'm sorry, I just can't do any more!"

The girl looked down at him and shook her head slightly, as if to say, 'Oh well, there's nothing I can do for him now.' She re-positioned the black box on the clipboard and pressed a red button. Immediately, the young man on the floor before her jumped and yelped.

"OK, here I go, I'll do more," he blurted out in a rapid-fire staccato, as he pushed himself back up into the leaning rest position.

"David, you know that I'm required to discipline you if you show a lack of motivation. Doctor Peters' orders, you know," said the girl with a smirk.

As David remained in position, the girl moved forward and bent down over his backside. With her free hand she parted his buttocks and made some adjustments to whatever device was inserted in his rectum.

With her fascination at what she was seeing, Shelly failed to hear someone enter the cubicle behind her.

"Interesting, isn't it?" said a female voice behind her. Shelly jumped and spun around to see a young female dressed the same as the monitor in the other cube, accompanied by a man of about twenty-four wearing a white lab coat. Shelly couldn't find anything to say, but now was acutely aware that she was standing there in just her bra and panties.

"My name is John," he said, "and this is Cindy. We're going to be the research technicians who will be testing you today." Shelly smiled and said hello.

"Let me explain the volunteer program to you briefly," John said. "Doctor Peters is the senior supervising physician on this project. I'm a physiology grad student at South Central University and Cindy, like others here, is a nursing student who also volunteers at the local hospital." 'Student nurses?' thought Shelly. 'Aren't they a bit young and inexperienced for this sort of thing, especially taking charge of nearly nude volunteers their own ages?'

"Don't be concerned with what you've seen so far. That has to do with the exercise physiology project. You will be part of the sensory/stimulus study project. No endurance testing for you," he continued with a chuckle. "But first, you have to have a quick physical so we can get some baseline readings."

Cindy took Shelly's arm and guided her over to the scale in the corner of the cubicle. "OK, Miss Heath, I have to weigh and measure you for the record. I need you to remove your bra and panties now," said the girl.

"Why? They don't affect my weight at all," said Shelly before being cut off.

"Miss, all our test subjects ask the same question. Dr. Peters requires totally accurate statistics, and our instructions are that height and weight will be taken with our subjects completely nude. Now please remove your bra and panties for me," explained Cindy.

Shelly hesitated for a fraction of a second while she glanced over at John, then with a sigh of resignation unhooked her bra in the rear and let, it slip over her arms and off. She slid her thumbs under the elastic waistband of her skimpy white panties on either side of her hips and pulled them down to her knees, bending forward slightly.

She wiggled her legs until the panties fell lifelessly to her ankles, where she stepped out of them and kicked them off to the side where her other clothes lay. Now she was completely naked in front of these two young strangers.

"OK, Miss Heath, up on the scale, please," Cindy said. Shelly stepped up on the traditional doctor's scale where Cindy adjusted the weights on the balance beam until they showed a reading of 125 pounds. Cindy called out the weight to John, who duly noted it on his clipboard.

Cindy moved behind Shelly and placed one hand on her abdomen just below her breasts and the other on her lower back just above the cleft of her buttocks where she had a dimple on either side at the base of her spine. Her hands felt a bit cool and they were smooth. It was a strange, but vaguely pleasant sensation; she couldn't ever remember being touched like this by a girl.

"Now, I want you to turn around and stand up straight so I get an accurate measurement," explained Cindy as she pressed her hands inward to straighten Shelly's posture. Shelly had moved her hands forward to cover her trimmed pubic area, but Cindy had pulled them back to her sides, reminding her to keep her hands at her sides.

When the top bar of the scale was touched to the top of Shelly's head, Cindy called out the height of 5'6" to John. Shelly was then allowed to step off the scale, and went immediately to her clothes and quickly pulled on her panties and began slipping her arms through the bra straps before being stopped short by John.

"Woah, not so fast. We're not done with the baseline vitals yet. Leave your bra off for now," he told her. Shelly, who was starting to feel a bit more comfortable thinking she could cover up, thought of protesting, but remembered she had volunteered for this and mentally agreed to cooperate. She dropped her bra back down onto the clothes pile.

"Come on over here so we can get some vitals," John told her. She walked over to the exam table, her perky tits bouncing slightly, and began to climb up, when Cindy put a hand on her shoulder, stopping her.

"We can do this all at once while you're standing right here," she said. I want you to face the table and bend over it. I suggest you grab the opposite edge to keep yourself steady." Shelly had never heard of this happening during an exam before, but she already had the uncomfortable feeling that this examination was going to be different.

Shelly faced the table and leaned over until her hands were at the opposite side. She felt Cindy's dress brush against the backs of her bare thighs as she pushed Shelly's groin into the side of the examination table and extended her arms fully toward the other side.

With a hand in between her shoulder blades, Cindy pushed Shelly firmly down until her nipples pressed against the paper covered cushion. The cool feeling and the friction of her nipples brushing the paper caused a tingling sensation which began to embarrass Shelly. She voluntarily pressed her breasts into the cushion, hoping to hide their erectile state from the two technicians.

Without further warning, Cindy's fingers slipped under the edge of her panties and began to tug them down her legs and thighs, past her knees, and all the way down to her ankles. Cindy raised the right foot and slipped the panties off of it, leaving them circled around the left ankle.

"Spread your legs wider for me," Cindy ordered as she placed her hands between Shelly's thighs and forced them outward until they were about two feet apart.

"What's this all about?" asked Shelly nervously.

"We're going to take your temperature, pulse and blood pressure," explained John. Since we do all three at once, it won't take long at all."

"You don't mean a rectal temperature? I haven't had that done since I was a kid, for God's sake," cried Shelly with alarm. She began to raise up off the table and turn around to speak to John about this, but he pushed her shoulders back down and told her to stay still for the procedures or they would have to begin all over again.

"Dr. Peters insists on accuracy in all our readings, as we've explained. The rectal and vaginal temperatures are the most accurate and least susceptible to external effects or manipulation," explained John. "Now, we expect you to cooperate without further fuss, OK?"

Cindy had already brought over the blood pressure cuff and stethoscope as well as several thermometers and a tube of KY jelly, setting them on the exam table beside Shelly. Shelly couldn't take her eyes off the instruments, knowing they would soon be used to violate her private body parts.

While Cindy began smearing KY over the thermometers, John picked up a latex glove and pulled it on with a snapping noise. He used the fingers of his other hand to push down the glove between his fingers so the glove was on tight. He flexed the gloved fingers several times before holding out his hand for Cindy to squeeze some KY onto his first two fingers.

With his fingers slick from the clear lubricant, he stepped behind Shelly and waited for Cindy to spread her taut cheeks with her fingers. Shelly could feel his warm breath on her fine anal hairs he was so close, and she could feel her face turning red with embarrassment at having complete strangers see her most private hole so close.

She suddenly felt the cool KY on the tip of his gloved finger lightly touch the outside ring of her anus, moving in small circles all around the outside edge, then slowly finding the center of his target. His fingertip began pushing in past her sphincter.

"Ohhhhh, do you really have to do this? I don't think I can take this," whined Shelly as she began to squirm.

"Yes, Miss Heath, I have to lubricate you for the thermometers. Otherwise they won't insert comfortably and you'll complain about that, too. Just relax and let it happen," instructed John. Seeing that Shelly was getting restless, he turned to Cindy.

"Cindy, go around the table and hold her shoulders down for me, would you? I don't want her squirming around so much while I'm working."

Cindy went around to the opposite side of the table where Shelly's head was and took hold of her shoulders. Shelly looked up at the young girl's eyes, and caught the sense of glee at being able to force this on her. The girl had a surprising strength, and Shelly felt her breasts being pushed into the table cushion.

As she was being held down, Shelly felt her bottom cheeks being parted again, and this time the tip of the thermometer remained poised at the entrance to her rectum. She felt the cold silver bulb of the tip touch dead center on her wrinkled hole and scrunched her anus in response.

After the initial "wink" reflex, she felt the thin glass tube enter her behind, going in all the way. She thought that would be it, until she felt another thermometer being inserted in her rectum.

"What?"

"Relax, Miss Heath, this is standard procedure here. We have to use two thermometers to verify readings," said John as he cupped his hand across both her buttocks and over the ends of both thermometers. Shelly was apprehensive that this was beginning to go too far, but in spite of that, she felt some stirring in her groin. Oh, God, how could she be getting aroused at a time like this?

After four minutes were up, John slowly slid one thermometer at a time out of her puckered hole and recorded the readings. Almost as an afterthought, he gave Cindy another direction.

"Cindy, would you check her nipples for me, please? You know what the sensors are like, see if they'll fit on her."

Cindy motioned for Shelly to lift her chest a bit, and slid her hand, palm up, under her hanging breasts. Slowly, she worked her way around each breast until she felt the nipple. She took each nipple between her thumb and forefinger and rolled them back and forth. Shelly's nipples were tingling before, but now they were rock hard and perfectly erect.

"I think they'll fit just fine, John," she reported. "They're very responsive and seem long enough to fit into the terminals."

John finished making his notes, then returned to Shelly. "OK, now I want you to hop up on the table and lie down on your back for me." Shelly was only too happy to get out of that humiliating position and assume a supine position on the table.

She felt relaxed now, feeling the flexible cushion and clean white paper underneath her bare buttocks. She placed one arm over her breasts and the other hand over her pubic mound, somehow thinking that her modesty was being restored.

As soon as she assumed the position, John ordered her to move her bottom down to the edge of the table and place her feet in the stirrups. She hated that position, remembering how exposed she was during her regular gynecological exams.

She took a deep breath and slithered her butt down to the end, and one by one raised her legs to rest them on the full-length stirrups. John adjusted them so they brought her knees back toward her breasts and raised her feet. Then he opened them wide, so she was completely exposed.

Shelly had never felt the rush of cool air on her asshole and pussy at the same time like she did now. She saw Cindy shaking down another thermometer and wondered what that was for.

"Wait, you just took my temperature," Shelly blurted out.

"Yes, that was the rectal temp. We are also required to take a vaginal temperature as well to confirm the readings and add to our database," Cindy explained. "Don't worry, it's painless."

Cindy went to the edge of the table and got right down between Shelly's legs. She spread her puffy lips nice and wide, then inserted the thermometer until only about an inch protruded. While the thermometer was inside, Cindy and John both did an external examination of her genitals. They spread her lips apart and examined the pink, moist inner lips, poked and probed and spread open her peehole, and finally found her clit.

They pulled back the hood covering the little button and exposed the slick pink swollen organ. John grabbed it between his fingers and squeezed it slightly, causing Shelly to twitch her hips. Cindy giggled and told John to quit it, as they would see enough of that later.

Shelly was clearly excited, obviously related to the fact that she was naked and exposed to these two young people. But she was becoming more embarrassed and wasn't sure she wanted to continue with this project.

When time was up, Cindy removed the thermometer and read the temperature to John, which was again normal. John looked satisfied as he reviewed her chart.

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