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A soft breeze blew through Jenni’s hair and she gripped Liz’s hand tightly. Above them, a rumbling cacophony of screams thundered by and the shadow cast by the roller coaster’s cars as they hurtled past flashed on Jenni’s face. She gulped, the tension palpable and Liz grinned mischievously at her.
“You okay?” Liz asked, flicking an errant lock of black back behind her ear, though the coloring of her hair was actually an unknown quality, at least to Jenni. The goth girl dyed it regularly so even the roots maintained the inky depths that gave Liz her “Wednesday Addams” vibe. It didn’t help that she had even parted her hair and braided it. Of course, Wednesday wouldn’t have ever been caught dead wearing a pair of electric blue short shorts, or a black tee shirt that sported an image of a pair of handcuffs on a girl’s wrists, with the words, “it only seems kinky the first time.” The black boots with neon pink laces, not to mention the torn fishnet stockings, only compounded the disparity.
Jenni pressed her lips together, clearly tense, and shook her head, which is when one of the boys took notice.
“She okay?” Alan asked curiously, getting a little closer, eyebrows narrowing. He was dressed more conservatively, in just a pair of blue jeans and a C.P. Elrod Senior High School Band tee shirt. He was a good looking kid, which undoubtedly caused a little confusion when he was observed standing next to Liz. They didn’t look like a match. Or a couple. Because they weren’t.
The other boy, a young man named Eric, snorted. He was standing in front of Jenni and he looked back over his shoulder at the pretty brunette. “Of course she isn’t,” he added, as if it were obvious. He looked more relaxed than Alan, standing there in khaki shorts and a polo. He’d even worn sandals instead of athletic shoes. He glanced upward at the massive steel structure looming above them. “Hell, I’m not sure I’m comfortable riding that thing again.”
Liz smirked. “Trust me, Jenni is used to riding uncomfortable things,” she assured the two boys. Then she lifted her phone, glanced at the screen and smiled at Jenni. “Aren’t you?” She asked, tapping the device.
Jenni’s mouth opened and she let out a little gasp, eyes widening as another spasm rippled through her body. She forced herself to close her mouth, focusing on control and then the line moved forward again. She followed Eric further up the queue and realized that it wouldn’t be much longer before she was sitting in the coaster car, heading up the first hill.
Toward climax.
Jenni's hands shook as she smoothed down the front of the summer dress she was wearing. It was admittedly cute, white with tiny blue flowers, but the hem, not to mention the neckline, were both more than a little daring. In fact, Jenni had been surprised the ticketing staff had even let her into the amusement park. Not that she’d deliberately bent over to pick something up in front of them. Which would have been nuts. Maybe because they'd been too focused on Liz's outfit to realize who was the real slut.
“Jenni?” Liz asked suddenly. “You aren’t close, are you? You're supposed to tell me,” she warned.
Jenni shook her head. “No,” she said, the tension in her voice palpable. “Not... not yet.” She whispered. Though it wouldn’t be long. She knew that. Five more minutes? Then they would be heading up that huge, high hill. Except Jenni was already on a hill. A different kind of hill. And it was rumbling. Deep inside her.
Alan pulled out his phone. “I think, after this, we’ll only need four more data sets,” he said, more to Liz than to Jenni, who was clearly distracted. Her body twitched, causing Jenni’s impressive bust to jiggle deliciously beneath the material of the dress. It was obvious she wasn’t wearing a bra, mostly because the two hardened bumps of her nipples were in plain relief. “You know, if Jenni isn’t too tired.”
Liz laughed. “Ten in a day would be a challenge for me. But not Jenni,” she assured Alan. “Just make sure you document everything.” She frowned. “Science projects suck.”
Eric glanced back again. “You said you liked the idea,” he accused, giving Liz a confused look.
“I like this idea,” Liz retorted, gesturing at Jenni, who was holding onto the queue rail as if it were a lifeline. Her eyes were closed and her fingers were clenched tight around the metal pole. “It’s a decent hypothesis, if not easily testable.”
Eric gave Jenni a smirking look. “Well, testing isn’t that hard.” He turned, slipped his hand up under the back of Jenni’s dress, and gave her bare ass a decent squeeze. She gasped, eyes widening. “How do those anal beads feel? Nice and tight?” He asked.
Jenni gave him a desperate look. “They’re... they’re... driving me crazy,” she whispered.
Liz’s eyebrow went up. “The beads? Or the vibrator?”
Eric laughed. "They're both vibrating, right?"
Jenni’s head swiveled. “Both,” she mewled in agreement. To her, the five beads Liz had stuffed into her rump after the second time they rode the coaster, were more intrusive and uncomfortable, but the shaking was definitely having an effect on her. Not as much as the vibrator of course, but combined, it was difficult to separate the sensations, or cope with them. The line moved again and they entered the loading house. Now it really would be just two or three more minutes.
“Where are you on the fuckslut scale?” Liz asked, wanting to know just how close Jenni was to actual orgasm.
Jenni gulped again. “Four and a half?”
Alan frowned. “Turn them down?” He asked curiously.
Liz looked speculatively at Jenni. “Nah. Not needed.”
“She looks like she’s going to cum before we even get on the coaster,” Eric replied, watching as Jenni’s hips began twitching, clearly thrusting against some unseen stimulation.
“I know what I’m doing,” Liz replied sternly. “That’s why you asked me to join your team. Remember?” She snapped her finger in front of Eric’s face. “The line is moving again. Go.”
They moved deeper into the shadowed structure and for the first time, separated. Jenni moved into the loading row with Eric, while immediately to their right, Liz and Alan got into place. A moment later, a coaster rolled into the station, the restraint bars lifted, and the current riders, faces flushed with excitement, all got off.
Which was what Alan, Eric, and Liz expected Jenni to do before everyone else.
Jenni was absolutely positive she flashed her stuffed pussy to the ride operator as he checked the restraints, despite struggling in vain to pull the hem down. It was their sixth ride of the day and the young man was grinning, taking a few extra seconds with her. But after he moved along, there was nothing for Jenni to do but endure and then the coaster rocked forward, heading down the track toward the giant first hill.
And the vibrations increased.
At first, Jenni couldn’t tell if it was the rattling of the coaster as the mechanism beneath the cars latched on and began hauling them upward, or if Liz had used her phone to turn the vibrating toy's power level up. They tilted back at a forty-five degree angle, but to Jenni, none of that mattered. The five anal beads Liz had pushed into her ass were buzzing like mad, the largest of which was the size of a golf ball. These vibrating toys sent a series of tremors through her backside, which only combined with the earthquake emanating from the other side of her body. Her pussy, soaked and sensitive from six previous orgasms, was stuffed with a remotely operated vibrator. It had been rumbling along at medium, but as the roller coaster gained altitude, Jenni clenched her teeth, absolutely sure that Liz had turned it to maximum.
Jenni felt it when they hit the top. The front of the roller coaster dipped, gravity seemed to shift, and her body quivered violently as the sexual torment surged through her.
“Remember!” Eric said loudly. “Announce it!”
Jenni trembled, the excitement of the coaster, the sexual energy between her legs, the sudden seeming cessation of gravity... and then... they picked up speed, the roller coaster tipping, surging forward, rushing downward in a heart-stopping plunge. Everyone, not just Jenni, screamed as the intense gravity forces induced a surge of adrenaline, the activation of the fight or flight response, and increased heart rate and blood pressure. But while Eric, Alan, and Liz, along with the other riders were doing it because the roller coaster had accelerated to eighty-five miles per hours, plunging two hundred and fifty-five feet, Jenni was screaming because her body, subjected to almost forty-seven minutes of mind-numbing sexual stimulation, had finally reached climax.
Only a few people realized that she was shouting words. “I’m cumming! I’m cumming! Of fuck I’m cumming!”
Fluids gushed from her pussy before they even hit the trough and the roller coaster was flung back upward. Four point five G’s only made the toys inside Jenni feel that much stronger and her orgasm continued unabated through the first three turns, her eyes rolling up into her head, her mouth struggling to form words. Her brain sloshed around inside her skull with each change of direction and the combination of sensorial overload short-circuited anything remotely resembling thought. As the coaster slowed, working its way along the mile-long track, physics keeping it in motion, yet also working to stop the forward momentum, Jenni quivered violently, her hips thrusting as the waves of orgasm followed a similar track.
Then the coaster lurched to a halt, just shy of the loading house. In the seat behind Jenni, Liz fumbled for her phone. A touch, and then another, quieted both the anal beads and the vibrator.
But didn’t silence them. She left both toys on low.
When the restraint bar lifted, Jenni just sat there, stunned and exhausted. She was still twitching too, her eyes unfocused. Liz quickly reached down, grabbing Jenni’s hand, pulling her upward, only for Eric to help, pushing Jenni up. After a second, Jenni seemed to come around, putting weight down on her foot. She almost fell into Liz’s arms, who supported her anyway.
“Christ,” muttered Alan, looking down at Jenni’s vacated seat. “What a mess.”
Indeed, for the seventh time, Jenni had left the coaster seat covered in a slick sheen of cum. The ride operator was already heading over, a paper towel and a spritzer bottle of cleaner in his hand. Liz and Jenni were already hurrying away, escorted by Eric, so Alan followed along. Jenni seemed like she could barely walk and Liz held her, keeping her heading in the right direction.
Liz sat Jenni down at the first available table and the girl just folded, both arms on the green mesh surface, putting her head down, still breathing hard and fast.
“Well?” Alan asked, pulling out his phone.
Liz grinned. “I’d say that was another successful run.” She smirked. “See? I told you I could control her orgasms. Make them happen when you wanted them.” She reached into her bag and pulled out a small pair of nipple clamps. Then she glanced around to make sure no one was watching. Jenni didn’t resist as Liz pulled down the front of the dress, exposing Jenni’s breasts, dangling down between the girl and the table edge. But the quick bite of the clamps roused Jenni, who let out a mewl of pain, even as both sets of pincers locked down on her tender tips. Then the bodice of the dress came back up, covering Jenni.
“How do you feel, Jenni?” Alan asked.
Jenni blinked, then winced. “Sore,” she admitted. “Tired.”
Alan glanced down at his phone. “On a scale of one to five, with five being the most powerful, how would you rate the maximum intensity of the climax you just had?
Jenni looked up at the boy. “Five,” she whispered.
“And on a scale of one to five, with five being the strongest, how would you rate the intensity of the "plateau" phase leading up to the orgasm?”
Jenni thought about that single moment, perched atop the peak of the coaster. She closed her eyes and gulped. “Five.”
“Approximately how long did the peak sensation last?”
Jenni bit her lip. The vibrator in her pussy was still rumbling, as were the beads in her bottom. It was distracting. Or was it the clamps? Her nipples were already throbbing. “Twenty seconds?”
Eric let out a low whistle. “That’s even longer this time. Almost the duration of the ride!”
Alan nodded, then looked back at Jenni, his finger poised. “Let’s go through the checklist again. Ready?”
She nodded.
“Rhythmic pelvic contractions?” He asked. Jenni nodded. “Any muscle tension in the legs or feet?”
Jenni blinked. “I think so.”
Eric nodded. “I was watching this time. Her toes curled.”
Liz snorted. “That could have been from dropping eighty-five feet.”
Eric chuckled. “Might have been. Wasn’t.”
Alan marked the appropriate note. “How would you describe this particular orgasm? An explosion? Wave-like? Radiating? Or diffused?”
Jenni wanted to say ‘explosive,’ but then she smiled. “Wave-like. But an explosive wave. Like a tsunami.” She smiled over at Alan, blushing crimson. “Multiple ones.”
Alan blinked. “Wait. You had multiple orgasms? On one ride?” Jenni nodded. He quickly noted that down. “That's new. Uh... during the climax, was your focus internal, meaning on the sexual sensation, or external?”
Jenni shifted, or at least that's what it looked like, but Liz recognized the movement. Jenni was rolling her hips. Moving side to side in response to the fresh surges of oscillation streaming from the vibe and beads. The goth girl smiled and tapped her phone again, slightly increasing the power and frequency of the vibrations inside Jenni.
“Internal,” Jenni said after a moment’s thought. “I mean, I was very, very aware of the coaster. But when I was cumming, all I could think about was my pussy.”
“Post-orgasm, do you feel a sense of relaxation, euphoria, or exhaustion?”
Jenni let out a quiet laugh. “Euphoria. Then exhaustion,” she said firmly.
Eric shrugged. “It’s the effect of the adrenaline burning out. She got a double dose - first from the coaster drop, then from the orgasm.”
“How much time elapsed between the final stimulation and the onset of the first contraction?”
Jenni thought back. “Um... I’m not sure.”
Eric cleared his throat. “I tried to count the seconds. She started the orgasm right after we started the drop, when the first G force hit us. She kept orgasming all the way through to the final turn. So eighteen to twenty seconds?”
Alan noted it down dutifully. “Did you experience a temporary "loss of self" or a sense of detachment from your surroundings?” Alan asked.
Jenni blinked, then nodded. “I think so.”
Liz laughed. “From the way we had to pull her out of the train? Definitely so. Each time.”
“Jenni, please rate the level of tactile hypersensitivity in the primary zone immediately following the event.”
Liz rolled her eyes. “Primary zone,” she teased. She slipped a hand up under Jenni’s dress, her fingers sliding along the girl’s thigh, all the way to the sweet, pink, stuffed, wet slit. “How’s your primary zone feeling, Jenni?” Jenni gasped as Liz’s finger tapped her clit, then stroked it. “Sensitive?”
Jenni nodded and let out a groan. Liz continued to caress Jenni’s pussy, smearing girl goo over and around the girl’s clit.
Alan grinned and set the phone down. “So, similar findings. Another good data set.” He gave Liz a grateful look. “I have to admit, I’m surprised we’re doing this well. I expected us to be here all day.” He glanced at his watch. “We’re way ahead of schedule.”
Eric snorted. “It also helps that we are here on a school day. It was nice of the principal to give us an excused absence for this.”
Liz rolled her eyes and pulled her hand out from under Jenni’s dress. “Well, all of us but her,” she said, pointing a glistening wet finger at Jenni. “She’s earned an unexcused absence for today, which means that tomorrow she’s going to get that sweet little ass of hers paddled red. Doesn’t it?” She asked Jenni. “Or will it be your pussy? I forget.”
Jenni bit her lip and nodded.
“And the thought of that turns you on,” Liz declared. “Doesn’t it? Being forced to spread your legs and offer up your soaking wet cunt for a spanking?” Liz gave Jenni a smoldering look. “Maybe I need to do it to you right here?”
Jenni’s blush was answer enough.
Alan stood up and looked down at Jenni and Liz. “Well, three more orgasms to go. The line is up to thirty-five minutes. Do you think that’s enough time?” He asked Liz, who was also getting to her feet.
“To get this little fuckslut back on the wagon?” Liz asked incredulously. “Of course! She’s already buzzing. Look at her hips twitch.”
Eric glanced at Jenni’s bodice. “What about the clamps? They’re kind of obvious under the dress,” he said.
Liz grinned. “Maybe this time she’ll wear them all the way to the loading house, instead of me taking them off half-way and flashing everyone her tits.” She tapped Jenni’s shoulder. “Come on, Jenni. Time to go cum.” She pressed her thumb to the phone.
Jenni got up, her loins already tightening, her ass clenching, her hips churning as the vibrations inside her body surged to a new level, more intense, more intrusive, more... everything. She felt the sexual pressure renewing, building, bubbling in her pussy. Liz held her arm, guiding her forward, following Eric, Alan bringing up the rear, back into the line, and Jenni gulped looking upward at the massive mechanical structure, the twenty story drop, the rumbling G forces, and the excited screams of the riders, hurtling along at breakneck speed.
And Jenni couldn’t wait to ride. And cum.
.o0o.
“The title of our project is ‘Physiological and Neuromuscular Markers of Female Orgasmic Response Under High Stress Situations’,” Alan said, looking over at the committee. “The purpose of the study was to investigate the relationship between high-stress environmental factors on the physiological mechanisms of the female orgasm, with a goal of mapping the autonomic nervous system’s response, including heart rate variability, muscle contraction frequency, and sensory radiation patterns to determine if orgasm during fight or flight stimuli is increased or decreased.” He looked up from the paper and grinned.
The four men and one woman sitting on the committee all looked intrigued. “Indeed,” said the foreman. “Continue.”
Alan nodded. “Myself, Eric Stanton, and Liz Fielder conducted a field study using a subject named ‘Jenni’, who agreed to undergo intense sexual stimulation, bringing her to the cusp of climax, right as she was set to experience a high-stress environment. Our idea was to use a roller coaster, stimulating her into orgasm as the ride initiated its first drop.”
Behind Alan sat the other three. Jenni was in her usual schoolgirl uniform, shifting her weight back and forth.
“Stop fidgeting,” Liz hissed.
Jenni grimaced. “Turn the vibrator down then! Or the anal beads!" She whispered back. She bit her lip. “This is so humiliating!” Her eyes glanced at the large screen off to the side, which was displaying the data from her twelve orgasms. Not ten. They’d had time to do a few extra and despite how tired she was, Liz had insisted that she could bring Jenni to climax at the appropriate time. Though the last one...
Well, it had been brutal.
“As you can see from the data sets, there is clearly an increase in hypersensitivity and orgasmic intensity when the test subject endures the kind of physical stresses applied by speed and force. Her climaxes were stronger, longer, with a deeper intensity.” Alan smiled and the last and final slide flashed on the screen. “To sum up, here is the official picture taken by the amusement park of our final ride.”
Jenni’s eyes widened in sudden horror. There she was, sitting next to Eric. Everyone else’s hands were up. Hers were down. Both of her breasts were in full view, jutting out to the sides of the restraint, each nipple caught perfectly in the bite of a steel clamp. But while Eric’s, Liz's, and Alan’s faces all showed the excitement and terror of the insane eighty-five mile per hour drop, Jenni’s face was a mask of orgasmic bliss, lost in the sexual euphoria of orgasm.
As the committee looked up at the screen, the vibrators in Jenni’s pussy and ass surged. She gasped, quivered, and Alan looked back at her, grinning.
“And clearly, our next study will need to be whether her orgasms are stronger when done in a public forum, where she can be properly humiliated.” He smiled at the committee. “Thank you for your time.”
Jenni let out a sharp little squeal, jammed a knuckle into her mouth, and exploded.
Project Title: Physiological and Neuromuscular Markers of Female Orgasmic Response Under High Stress Stimulation
Principal Investigator: Alan Parker, Eric Stanton, Liz Fielder Institution: C.P. Elrod Senior High School
You are invited to participate in a biological study investigating the physiological mechanisms of the female orgasm under high stress situations. The goal is to investigate the relationship between high-stress environmental factors on the physiological mechanisms of the female orgasm, with a goal of mapping the autonomic nervous system’s response, including heart rate variability, muscle contraction frequency, and sensory radiation patterns to determine if orgasm during fight or flight stimuli is increased or decreased.
If you agree to participate, you will be asked to:
Complete a pre-screening questionnaire regarding your general health and menstrual cycle phase.
Engage in multiple proctor-directed sexual stimulation sessions in a private, controlled environment to create a base-line model of orgasm.
Use invasive stimulation equipment (e.g., vibrator, anal beads, clitoral and nipple clamps).
Engage in multiple proctor-directed sexual stimulation sessions in an appropriate venue designed to apply extreme physical stimuli, including G forces and high rates of speed.
Complete the Biological Response Assessment (BRA) questionnaire immediately following each event to record subjective sensory data.
Physical: There are no physical risks beyond those typical of intense sexual activity. You will be subjected to repeated orgasmic events and forced to orgasm.
Psychological: Some participants may feel temporary self-consciousness or emotional vulnerability at being subjected to sexual stimulation in a public setting or while under observation. You may pause the session at any time for any reason.
There is no direct medical benefit to you. However, your participation will contribute to the scientific understanding of female reproductive health and autonomic nervous system function.
Security: You agree to allow the study to use your name, face, and data as required for the presentation, including pictures, video, or other media forms with the understanding that you may be photographed or filmed in situ during sexual acts.
Media: Video and/or audio recordings of the sexual acts will be conducted.
Storage: All data will be stored on a secure, encrypted server, but uploaded to the internet for wide distribution and public access.
Participation is 100% voluntary. You have the right to withdraw your consent and request the deletion of your data at any point during or after the study. However, doing so will result in penalties in line with C.P. Elrod’s student disciplinary code.
By signing below, I acknowledge that I am at least 18 years of age, have read the information above, and voluntarily agree to participate in this study.
Participant Signature: ___________________________ Date: __________
Researcher Signature: ____________________________ Date: __________