The Fifth Vital Sign · Part 2

The Fifth Vital Sign · Part 2 (2/3)
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hich I can assure you, you definitely want to avoid. Any questions?"

No one was duped into trying to speak this time; they all just shot daggers at him with their eyes. "Okay then, let's have our little playboy bunny #4 go first since she made us all wait last time. #4, your timing begins now."

A target line and punishment line appeared on the graph. The cute blond, who no longer looked so prude sitting there naked with her tattooed breasts on display, looked worriedly at the graph as the two lines slowly began to rise. She started to lift her hands, then put them back in her lap, clearly not wanting to give in and pinch her own nipples in front of the class and this asshole TA. But the rising lines were clearly raising her anxiety, as could be seen on the heart rate and repertory rate monitors. The target and punishment lines passed levels 4 and 6 respectively. The girl was looking around frantically for a way to escape, but trapped in the chair, there was nothing she could do.

She looked pleadingly at Hank, but he just looked over at the pain monitor, where the two lines were passing 5 and 7. At that point she gave in, grabbed her nipples, and started to squeeze. Her pain line began to go up, passing , but started to plateau around . The girl looked desperate and let go of herself to readjust her grip and try again, but as soon as she let go, her pain line dropped and the monitor made a loud beep as it flashed: "FAIL." A moment later, #4's pain line shot up to the punishment line, just above , and held there for 10 seconds as the poor blond writhed in her chair. The rest of the girls watched in horror, knowing their turns were coming.

"All right, #4 here showed that she has little self-control or sense of delayed gratification. #5, your next."

The girl in chair #5 wasn't overweight by any means, but she had a softness to her that was very appealing. She had fantastically smooth looking skin, and her full breasts hung nicely on her chest, waiting to be squeezed. She had learned the lesson against waiting, so took a deep breath and grabbed her nipples. But she too underestimated the amount of squeezing that was necessary, and fell short of the target even though it was just over . Her punishment was less intense, but you couldn't tell by watching her as she too writhed in pain for the 10 second shock.

#6 was the first to hit the target level, pinching and twisting her nipples until her pain line spiked just over . #7 followed suit with a quick sharp twist that almost hit and clearly wasn't enjoyable, but was still much better than the punishment. #8, the athletic babe sitting there in her panties, turned out to be incredibly stubborn. She just sat there with her arms crossed as her target and punishment lines crept upwards. She tried to put on an air of superiority and disdain for this whole thing, but her vitals began to give away her nervousness.

Her pulse rate was going steadily up, and by the time the punishment line passed her heart was pounding away like a trapped bird. But she held her position until the punishment line hit 10 and the screen flashed "FAIL." Her writhing was orders of magnitude more violent than #4's or #5's had been. Her naked legs kicked involuntarily, and her screams quickly became guttural and almost barbaric-sounding. Hank was glad that the room he had chosen was in a sub-basement where no one was likely to over hear them. The girl kept screaming after her 10 seconds were up, causing more shocks until she finally collapsed.

It was clear that her collar was the only thing keeping her seated upright in her chair, her muscles had gone limp and she had a far-away look in her eyes.

After #8's display, all the rest of the girls raced to grab their nipples as soon as they were told. It was quite a show – all of these topless co-eds pinching and twisting their own nipples as soon as he pointed at them. Many of them hit the target, some even shot by both the target and the punishment level. A few still missed, but either way it was a blast to watch them twist and it was a blast to watch them writhe.

When they had all gone once, Hank gave the barely recovered #8 another chance to try, and this time she grabbed her nips right away and gave herself a violent twist and tug that shot her pain briefly up to . Hank patted her on the head and told her she'd done a nice job.

"All right class," Hank said, "The next experiment is going to require that each of you be completely naked. You know the drill; you'll all be shocked until you are all naked. Please throw your garments into the middle of the room so it is easier for me to collect them."

The girls were much quicker to comply this time, pulling off jeans, skirts, hose, and shoes and tossing everything into the middle of the room. They were learning that disobedience would only bring pain. Hank smiled as all the nice long legs were revealed. Damn had he chosen well! Some of the girls, in a small act of defiance, left their clothes to the side of their chairs, but Hank just continued the shocks until they had kicked those clothes into the middle as well. He put the rest of the clothes into another bag and took a minute to just admire all of the naked bodies he had sitting around him.

"Okay, this next activity isn't really part of the group behavior experiment, I'm just really curious about what percentage of women are able to fist themselves. So, when I say go, you're all going to have 20 seconds to stick your hands as far into your pussies as you can. If you aren't all the way in, you'll get a 5-second shock at . If you haven't even tried, you'll get a 10-second shock at . Begin."

The naked girls looked around at each other incredulously. This nightmare was getting worse and worse. But a countdown timer on the monitors was ticking away, and none of them wanted the threatened shocks, so in when their hands. It was clear that some of them had done this before. #10, for example, who had shown up in her pajamas, expertly maneuvered her hand all the way into her cunt, which was still dripping from the vibrator earlier. Others were having a lot more trouble, trying to shift their position, angle their arms, and crunch their fingers together as best they could. At the end of 20 seconds, about half had succeeded, but all had tried.

Hank delivered the punishment to the half that failed, telling the successful half to leave their hands buried until he said so or they would join the others in punishment. He instructed the successful group to retrieve their keypads with their other hands and answer his survey questions with a "1" for yes and a "2" for no. As the sluts sat there, naked and collared, with one hand jammed up their pussies, they told Hank whether or not they had ever fisted themselves before, whether they enjoyed fisting themselves, and whether they enjoyed being fisted by a partner. It was pure hilarity.

"All right, watching you girls fingering yourselves has gone and gotten me downright horny. I'll need one of you to volunteer to get fucked before we can continue. Anyone?"

The girls were all probably wondering if he seriously expected one of them to volunteer, and they were terrified that they might be chosen. They had all heard of crazy experiments before, but this had gotten way the out of hand.

"Okay, here's how we'll decide. I need you all to vote for which girl here has the nicest rack." Hank was pleased to see that #18 won. "Now vote for which of you has the best legs." Athletic #8 took this one. "And the sexiest stomach." This was taken by #1, whose perfectly flat, but soft and inviting, stomach was adorned by a dangling naval ring. "And, though I know you can't see them very well, vote for best ass." The votes were scattered, and a number of girls tied for first, so Hank held a runoff that was won by #14, the heavily made up girl who had been wearing some nice tights. "Okay, now between the three girls who didn't win best rack, #8, #1, and #14, which has the best rack?" #14 won easily. She also won best legs after #8, and was therefore chosen to satisfy Hank's lust.

"All right #14, your tether will now give you enough slack to stand behind your chair and bend over its back. You will then lock your ankles into the spring loaded cuffs that are unfolding from your chair's back legs, and lock your wrists into the cuffs that you can see are unfolding from under the front of you chair."

The chosen girl did indeed see the cuff that had folded out from under her chair, and looked behind her to see that a portion of her chair's legs had folded down and displayed two more cuffs ready to hold her ankles wide. She shook her head violently. She had actually looked somewhat pleased that her peers had chosen her for best ass, and then legs and boobs, but now she was looking for a way out. There was none, and a few shocks to her collar got her up and locked into position. Hank marveled at how easy this was as he strolled around behind her. He marveled even more at the view that greeted him there.

The ass that was held up high in front of him did indeed deserve to be voted best – round and firm, not too big, not too small, and silky smooth. He patted the ass, complimenting the girls on their fine choice, then reached over to squeeze the #14’s dangling boobs, complimenting the class on their choice there as well. The girl beneath him was squirming like crazy, but between the cuffs and the chair back, she had little room to move, and her wiggles only served to entice Hank even more. He slapped her ass hard, watching the #14 pain line shoot up every time he did so.

He grabbed a paddle he had brought, and found that he could get the line to spike much higher with it than with his bare hand. He also saw that the spikes continued to get higher as the girl's ass got redder and more sore.

But enough foreplay. Hank zipped down his fly, pulled out his now very hard cock, and quickly pulled on a condom. This wasn't so much to protect the girl who was about to get fucked as it was to protect himself. He didn't want to catch whatever diseases these college sluts were carrying, and more importantly he didn't want to leave anything behind that could be used to identify him. As soon as he was protected, Hank unceremoniously thrust his cock deep into the pussy that was waiting before him. He pounded away, watching with satisfaction as the girl's pulse and breathing rates steadily rose.

With her vital signs on display, as well as her whole naked body, it was clear to all the naked girls in the room that #14 was getting aroused. Hank encouraged this by stroking and pinching the bent-over girls’ breasts and then her clit. Her breath was starting to get ragged, occasionally setting off a shock in her collar and quieting her down. The naked audience was watching with rapt attention. #14 was putting on quite a show, between her bouncing boobs, her clear arousal, her mortification, and her attempts to keep silent to avoid shocks. Finally Hank let her have it, erupting into her pussy and watching with satisfaction as she clearly climaxed at the same time.

Hank hit a button to release her cuffs, telling her to sit back down, which she did with some reluctance after the beating he had given her ass. "Class," Hank announced, "I'm now going to give you some exercises to do while I recover. The first exercise will work you quads. You will all need to lock your ankles in to the spring loaded cuffs that you will see unfolding from your chairs' front legs." The girls were all quite hesitant about this, after seeing what happened to #14 when she was locked down, but after only a couple shocks they all complied. Hank instructed them to straighten their legs, unwinding a retractable cord that connected their ankle cuffs to their chair legs.

They were to repeat this motion to the rhythm given to them by the monitors. The tension in the cords would get steadily greater each time until they girl didn't get their legs all the way up. Hank explained that as a motivator, girls with numbers 1-10 would receive ten extra credit points if they made it into the top five, while girls with number 11-20 would receive a five-second level-6 shock if they didn't make it into the top five. Any girl who didn't complete at least the first ten leg lifts would get a 10-second level-6 shock. The point was to see which was a better motivator, pain or extra credit.

This was a pretty obvious question, especially since even the slower members of the captured TA group now understood that this was not a real class. All of the girls made it through the required first ten leg lifts, though the strain was starting to show on the weaker girls. After that, all but one of the girls with numbers 1-10 stopped. Their chairs beeped and locked their ankles down. #8, however, kept going along with the high numbered girls who had more to lose. Those girls all glared at her, but apparently the athletic hottie had a competitive streak that forced her to try to win.

After 20 leg lifts, a number of the girls were starting to sweat and show signs of strain, though #8 was still going strong. Hank enjoyed watching them all. They all had such nice legs, some more toned than others, but all young and strong. At 25, a couple girls failed to get their legs up, including #18, the big breasted babe, and another girl with equally large knockers. Two more girls dropped off at 33 and 35, leaving seven girls lifting their legs. Each lift was now clearly an effort, but these girls were now all so close to the top five, and avoiding the shock, that they didn't want to give up.

But at 42 leg lifts, another two girls failed at the same time, leaving just five. #8 kept going when the other four stopped, knowing that they had already avoided the shock and had no more reason to go on. After doing two full leg lifts beyond the last of the others, #8 finally stopped with a grin, and her ankle cuffs locked in like all the rest. Hank administered the punishment to the six girls in the upper numbers who hadn't made it, and congratulated #8, who had won 10 extra credit points. He patted her on the head.

"Okay, arm exercises next. Please lock your wrists into the cuffs that are unfolding from the backs of your chairs." The amazingly versatile chairs were folding out yet another set of bars and cuffs. This time, the bars on each side of the back of the chairs raised up and out, revealing cuffs that would hold the girls arms straight out from their shoulders. The girls were very reluctant to lock their hands in, which would eliminate one of the last freedoms they had, but they just couldn't resist the shocks from their collars. As the last ones locked in, Hank looked around the circle at his class of coeds, sitting tall and naked in his chairs, their ankles locked down to the chair legs and now their wrists held straight out, their fingers almost touching the fingers of the girl next to them. What a good looking group!

Hank explained that they would be pulling their hands in to meet in the middle, resisting tension from the tethers attached to their wrist cuffs, just like a pectoral-fly exercise machine. The tension would increase like last time, only now 1-10 were on the hook for the shock. He got them going, watching them pull their arms together in unison to the rhythm given to them by the monitors. He stayed in the middle for the first ten, looking around at all 20 sets of boobs as they jiggled away. When the higher numbers stopped after ten repetitions, Hank ducked under two of their arms and strolled around the outside of the circle.

He stopped behind #8, who was still easily pumping away and probably expecting to win this competition as well. But Hank surprised her by reaching under her arms and roughly grabbing her nice round boobs. The surprise threw off her rhythm, and she missed the next repetition, causing her chair to beep and her wrist tethers to fully retract, locking her arms out wide. She was clearly pissed, but she was locked down – throat, ankles, and wrists – and her shock collar prevented any sound of protest, so there was nothing she could do about it. Hank made consoling sounds as he patted and squeezed her boobs, which certainly pissed her off all the more.

When the exercise was complete, and the losers among the lower 10 had been given their shocks, Hank made a full circuit around the outside of the chairs, squeezing boobs here and there, stroking hair and faces, and reaching down to pinch buttocks. He complimented them as a group on their physiques, letting them know that their fine bodies made the hard work of his research much more enjoyable. He also let them know that he was recovered and ready for some more action, and would anyone like to volunteer? He wasn't surprised to not get any takers, especially after the romping he had given #14.

But this time he thought it would be fun to actually get a volunteer, so he said: "Here's the deal ladies: I'm prepared to allow whoever volunteers right now to sit out of the next exercise I have planned for you. I'm not going to tell you what that is, but I will tell you that whoever satisfies my needs right now will be quite happy that she doesn't have to participate. So, any takers? Since you're not allowed to speak, and you can't raise your hands, just point at yourself with both thumbs if you'd like to volunteer."

Hank looked around the circle of captured hotties. It was clear that a number of them would never consider willingly volunteering, but a good number of them had agonized looks on their faces. A lot of his 'exercises' had been pretty horrible, and certainly these girls could now imagine lots of things that would be worse than a quick fuck. But it still must be hard to voluntarily single themselves out for his attentions. After a long pause, Hank saw #1 – best stomach girl – make two thumbs-up signs and point them at herself. Quickly after that, #5 and #10 also volunteered – they had clearly been struggling with the decision, and seeing someone else come forward, didn't want to lose the opportunity.

Hank just laughed as he walked over to #1. "Sorry 5 and 10, you were a bit too late, but I'll remember that you were willing.." He cupped #1's chin from behind and let her know that her position was going to be somewhat uncomfortable. He pressed a button on his remote that caused the seat of the girl's chair to begin to fold up and forward, forcing her to lift her butt along with it. She was still locked down by her neck, ankles, and wrists, so instead of standing up with the raising chair seat she began to bend backwards at the waist. The seat kept going until it was straight up and down.

The poor girl was left with her legs straight, then her body bent backwards at almost a 90-degree angle, then her neck bent forward so that her chin was pressed against her chest. And of course her arms were still held out wide. Hank stood in front of her, where her pussy was proffered up to him, and ran his hands along the smooth flat stomach that had been voted best by her peers. He certainly didn't disagree as he played with the little jewel that pierced her naval, then ran his hands on up to the girl's deliciously soft breasts. He noticed on the pain monitor that just being held in this position was holding the girl's pain level almost at .

He slapped her breasts and stomach a few times, watching her pain line spike up in rhythm to his beating. But he didn't leave her waiting long for the main event, pulling out his member, suiting up, and pounding away at the pussy that was so conveniently displayed in front of him.

Hank finished pretty quickly – before the awkwardly bent girl beneath him had gotten much further than getting used to the discomfort of her position. Always the gentleman, Hank said: "Well, I hate to leave my women unsatisfied. #20 and #2, I'll need you to finish the job with your tongues. You'll take turns licking #1, 30 seconds apiece. Whenever you finish a turn without getting her off, you'll get a 5-second shock at . And if I don't think you're trying hard enough, that'll go to . Clear? All right, #20, you'll go first."

#20 was a slender red-headed girl with a shy look that Hank found incredibly appealing. He'd have to give her a go latter. For now, he hit a few buttons on his remote and all of the girl's tethers went slack. Her thin arms dropped and her head sank forward a bit. She looked at her appendages, clearly excited that she might be free, only to find that she was indeed still attached. She made her way hesitantly towards the bent girl next to her, not expecting to be able to reach based on how much slack her neck tether had given her earlier.

But she found that she now had much more leeway, just enough to get her head over to #1's crotch if she leaned her body past where her arms and legs were held back. It was a very awkward looking position, which matched the very awkward carpet munching that followed. It was clear that neither giver nor receiver was at all happy with what was going on, and #20's first round ended without her target getting any closer to the goal. The round also ended without warning. All of her tethers retracted quickly, yanking her back onto her chair with her arms spread wide, then instantly delivering the painful punishment.

Seeing this, #2 was eager to avoid the same fate, so crawled over quickly as soon as her own tethers went slack and went to town on #1 with a passion. Hank couldn't tell if this raven-haired beauty was a natural or a practiced professional. Either way, she was definitely getting results. #1 initially looked surprised, then, despite herself, turned on. Hank decided right then that he'd have to see if she could blow a man as well as she could clearly blow a woman. The sight of her naked back as she knelt there and enthusiastically licked away was truly inspiring. After 30 seconds, #1 hadn't cum but she'd certainly gotten a lot closer, and she was visibly disappointed when #2 was yanked back to her chair. #2 was also visibly disappointed before she was visibly in pain as her punishment struck.

Having watched this show, and wanting to avoid another punishment, #20 jumped in with much more energy than her first round. She succeeded in keeping #1's pulse rate at the same level, but not getting it any higher, and suffered another punishment at the end of her 30 seconds. #2 then swooped in and sealed the deal half way through her second round. It was quite a show: soft and pretty #1 trying to limit her convulsions and stifle her moans to avoid shocks, while grinning #2 knelt there looking up at her in triumph. Hank retuned both girls to their normal, seated, outstretched positions and patted them on the heads, saying: "Great show ladies! And #1, thanks again for volunteering. As promised, you'll be able to sit out for this next exercise."

Hank walked around the circle placing each girl's keypad in her left hand and admonishing them to make sure they held on tight. He also pulled black-out hoods over each girl's head and closed nipple clamps over each nipple. The clamps were attached, like everything else, to the chairs via retractable tethers, which served to pull the girls' breasts outward. As he did this, he explained that they would be playing a little game of detective. 5 of them would secretly be assigned as 'shockers' while the rest were 'detectives.' The shockers had to type in someone's number to give them a neck-shock at least every 15 seconds.

After getting shocked, a detective had up to 5 seconds to guess who had shocked them and key her number in, delivering a breast-shock via the nipple clamps to whoever they guessed. If she guessed correctly, that shocker would be 'out.' If she guessed incorrectly, or if she didn't guess at all, then she would receive another shock as punishment. The detectives would win the game by knocking out all the shockers. The shockers would win by shocking each detective 5 times, thus knocking them out. Hank told the girls that this would be a chance for all of them to use their group psychology knowledge, and he hoped it would be fun for them.

The Fifth Vital Sign · Part 2 (2/3)
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