Agree to the demonstration.

"Sure...sure," Nat says slowly. "Yeah, I guess I could help."

"Excellent!" Ms. Poundwell says with a smile. "Come up here, please." She heads to her desk, at one side of the room, to get something, adding over her shoulder. "And take your clothes off."

Nat {if Sluttery < 60}blanches. "Uh. Really?"

"Yes."{else}smiles. "Sure thing!"{endif}

{if Sluttery > 59}Turning to face her class - Might as well give them a decent show, right? - {else}Moving hesitantly,{endif} Nat begins to undress. {if Prude_Clothes=True}Kicking her shoes off, she unbuttons her shirt one button at a time, finally pulling it off and tossing it to one side. One boy whistles mockingly and Nat {if Sluttery > 59}sticks her tongue out at him{else}blushes{endif} as everyone laughs - they all know the good stuff is yet to come. She hesitates a moment, then unbuttons and shucks her khaki slacks before grabbing the hem of her pink cami and pulling it up and off over her head.{elseif Normal_Clothes=True}She pulls her t-shirt up and off, over her head, getting several appreciative murmurs from the class as she pushes her chest out to work the shirt off. Kicking her sneakers away, she unbuttons her jeans and shimmies them down over her hips. "Nice," one guy comments, and Nat {if Sluttery > 59}grins at him.{else}blushes.{endif}{elseif Slut_Clothes=True}She pulls her tank top off and tosses it to one side before unzipping her skirt and letting it drop down off her hips, stepping out of it as it puddles on the ground. As an afterthought, she kicks off her sneakers. While there are some appreciative noises, she's becoming keenly aware{if Sluttery > 59} (in a way that's making her more than a little wet){endif} that taking those clothes off hasn't made all that much difference in what her class could see.{endif} She stands there for a moment, hesitating.

"Everything, please!" Ms. Poundwell chirps authoritatively. Nat {if Sluttery > 59}nods{else}blushes{endif} and complies, reaching up behind her to unclasp her black bra. She gets it after a moment and drops her bra to the floor, getting a few appreciative whistles and murmurs from the class. {if Sluttery > 59}Smiling{else}Blushing even harder{endif}, she bends over, pulls her thong down{if Sluttery > 59} (flexing slightly to thrust out her chest and flaunt her ass as she does){endif} and drops it to one side. She stands there,{if Sluttery > 59} unashamed and already feeling a thrum of arousal through her loins from all the eyes on her.{elseif Sluttery > 39} shifting awkwardly from side to side as she waits for Ms. Poundwell's instruction, skin goosebumping slightly from all the attention.{elseif Sluttery > 19} at first trying to look casual but then covering her breasts with one arm and her crotch with the other. I shouldn't be embarrassed, she chastises herself. This is totally normal...{else} scarlet from embarrassment as she tries (futilely) to cover both her breasts and her cunt. I can't believe I agreed to this! I can't believe they're all...watching me!{endif} Several of the boys have opened their pants and are beginning to stroke themselves, grinning, as they watch her.

Ms. Poundwell places an odd-looking, heavy stool down next to her with a clunk. "Good girl! Hop up." Nat obeys uncertainly, then gasps as Ms. Poundwell - who's surprisingly strong - seizes her arms and pulls them back behind her, locking her wrists into some kind of restraint at the stool's back. Moving quickly, she bends over and pulls Nat's legs apart, too, buckling them into restraints on the stool's legs. The small bar at her back and the position forces her to cant her hips forward, and she feels a warm flush run through her as she processes how totally exposed she is - immobile, tits thrust out, cunt open - in front of her class.

{if Sluttery > 59}"Damn, she looks pretty soaked already!" one boy comments.{endif}

"{if Sluttery > 59}True enough! That's not a problem for us, though... {endif}Now, nymphomanic feedback effect can look a lot of different ways, but there are some common visual cues that can let you know where your partner is," Ms. Poundwell tells the class. "And that's important to keep an eye on, boys, because a girl's mind is a very easy thing to break! But don't worry, Natalie, I'm a professional - and besides, it's pretty much impossible to get you there without cum, anyway. Now, observe..."

Ms. Poundwell begins to run her fingertips lightly over Nat's skin, and Nat feels herself immediately tingling. Her nipples harden to almost painful points as her teacher traces her arms. "People say that there are erogenous 'zones.' Now, to a certain extent, that's true. But, class, I need you to remember this: the whole body is erogenous, especially on a woman. The skin is our largest single organ, and one of the most sensitive, too. The electrical exchange that happens - literally! - with skin-on-skin contact is one reason sex feels so good, and why our brains - especially girls' - crave more of it. The question with erogenous zones isn't 'how many are there?' or 'where are they?' It's, 'which ones are going to get a slut worked up and turned into putty in a boy's hands? Which ones will push her over the edge?'"

"For example, the nipples are a common zone of heightened sensitivity." Ms. Poundwell reaches up suddenly and cups Nat's breasts, making her {if Sluttery > 59}moan lustfully as tingles of need race through her body toward her cunt. "...I'm starting to think you're in the wrong class, Natalie!"{elseif Sluttery > 39}let out a noise halfway between a gasp and a groan as she feels her breasts tingle in the older woman's hands.{else}gasp in shock.{endif} "Natalie certainly seems to have sensitive breasts and nipples; notice the way she reacted to me grabbing her tits. Let's see what happens if we play with them a little bit." She pinches one of Nat's hard, pink nipples, rolling it between her thumb and forefinger. Nat squirms against her bonds at the painful, arousing sensation. She can feel herself, below, growing damp. "Ah, yes. See how Natalie is arching her back? In the same motion, she's pushing her tits forward and spreading her legs a bit for me. A sure sign she's having a good time up here! You enjoy getting your tits mauled, don't you, Natalie?"

{if Sluttery > 59}"God, yes," Nat moans.{elseif Sluttery > 39}"Uhhh...yeah...I...yeah," Nat gasps, distracted.{elseif Sluttery > 19}"Ummmm! I, I guess so...it's not bad," Nat murmurs, trying desperately to keep control of herself.{else}"Mmmmm. It's...it's fine! It's just...a reflex," Nat grits out, forcing herself to relax. Ms. Poundwell chuckles.{endif}

{if Sluttery < 20}"You just keep telling yourself that," she says. {endif}"So, as I was saying. The skin is enormously erotic. That's why penetration doesn't even have to happen for someone to enjoy themselves. As a few of you are demonstrating for us...Celia, do make sure you take Nate's cum in your mouth, won't you, though? My classroom gets messy enough." {if Sluttery > 59}Through the haze of her arousal {endif}Natalie sees a short, red-banded girl in the third row blush and start to let go of her boyfriend's cock. But the boy grabs her by the wrist.

"C'mon, babe. Teacher's orders," he says, and pulls her from her chair. Celia drops to her knees in the aisle between desks and leans forward, obediently taking the head of his cock in her mouth.

"But what about penetration?" Ms. Poundwell continues. "Now, I know you're all aware of this, but girls have three useful holes for pleasing cock: mouth, pussy, and ass. I'm sure you each have your preferences, boys...but remember that what you do to a girl affects her, too! Each fuckhole is an erogenous zone, and like the other erogenous zones they get different responses from different girls. The mouth and throat put a girl at your mercy." She shoves two fingers deep into Nat's mouth, and Nat {if Sluttery > 59}closes her mouth around them, sucking eagerly. "Good slut," Ms. Poundwell coos.{else}gags.{endif} "A girl sucking your cock is in an inherently submissive, feminine position, servicing you. Many women get a rush out of it - it feels powerful, but of course there's an element of risk, too. At any time, after all, you could start fucking her throat. Girls who like to be dominated often love giving head. Where are you going, boys?"

"Sorry, Ms. Poundwell," one boy says, as Nat {if Sluttery > 59}slurps away at the teacher's fingers{else}continues to sputter and gag{endif}. "We just wanna grab a blackband. Be right back?"

Ms. Poundwell sighs. "Very well. Hurry, please." The boy nods, and he and his two friends head into the hallway. Celia is fully under Nate's desk, now, head bobbing rhythmically as he leans back and watches Ms. Poundwell work Nat over. "Where was I...ah, yes. That's the mouth. The face-pussy, as some would have it. But of course, the cunt is in reality another matter all together!" She pops her fingers out of Nat's mouth and drops her hand between the girl's legs, tracing her slick digits over Natalie's already sodden folds. "The cunt is the most common erogenous zone fuckhole in women. Most women like taking dick there; it feels good, full, complete. And, of course, right at the top of the cunt you have the clitoris." Ms. Poundwell begins to play with Natalie's hardened nub as she says this, and Nat feels her legs begin to tremble. "Now, you have to be careful when playing with a slut's clit. It's a great way to make them do whatever you want - including orgasm themselves. But the female orgasm is criminally understudied. We're still not sure exactly how it affects NFE! So don't overdo it here, boys. Or girls, for that matter."

The door squeaks open. "Oh good, you're back," Ms. Poundwell says approvingly. "Fast work. The mats in the back of the room, please." Nat watches, {if Sluttery > 39}eyes half-lidded with desire,{elseif Sluttery > 19}gasping at the continued touch of Ms. Poundwell's fingers on her clit,{else}eyes wild, her body shaking and drenched in sweat,{endif} as the three boys who'd departed drag the blackband they found to the back of the room. The girl, a skinny, long-legged blonde with tiny breasts, is nude except for a ball gag. As the boys reach the mats at the back of the classroom, they throw her down and crowd around. The blackbanded girl throws her head back, moan muffled by her gag, as one boy lies down on the mats and drags her on top of him before thrusting up into her cunt. {if Sluttery > 59}I wish that were me, Nat thinks fervently.{elseif Sluttery < 20}God...I guess it...it could be worse! Nat manages to think.{endif} A second boy kneels down behind the girl and spreads her small, pert asscheeks, spitting between them as he strokes himself.

"As Fred is about to demonstrate for us, there is of course a third fuckhole," Ms. Poundwell says approvingly. "The anus - much beloved, much feared, much misunderstood. Some girls love taking it up the ass. Some do it only because it would be rude not to. But I'm here to tell you there's nothing wrong with fucking a girl's ass. You just want to use plenty of lubricant and go slow, to avoid damaging her! Unless, of course, causing her discomfort is part of the point. If you're disciplining her, say." At the back of the room, the blackband shrieks through her gag as her asshole is breached. Nat jumps slightly as Ms. Poundwell's fingers graze her anus. "Natalie here seems a little sensitive - she probably hasn't had a lot of cocks, if any, up her ass," Ms. Poundwell says off-handedly. "Am I right, Natalie?"

{if Sluttery > 39}"Mmmph. Wouldn't mind one...right now..." Nat moans.{elseif Sluttery > 19}Nat moans. "Uhhhh um. Y-yeah. Yeah, not...yeah," she gasps, unable to keep her hips from jerking forward toward her teacher's teasing fingers.{else}"Aaah! Ha! Haa...yes, Ms. Poundwell!" Nat's body convulses and shakes slightly as she tries to keep control of herself, hips jerking under her teacher's ministrations.{endif} The classroom is by now a veritable hive of sexual activity: several more boys have gone to the back of the room to wait their turn with the blackband, while those who have girlfriends in the class are taking full advantage of the opportunity. Celia is **** as her boyfriend works her skull up and down on his cock, and a couple of other girls wearing red collars have been thrown down on top of their boyfriends' desks, legs spread to receive their dick. As Nat stares around, {if Sluttery > 19}gaze unfocused{else}desperately striving for focus{endif}, she realizes even a few of the greenband girls are touching themselves, watching her torment (or the fucking of their classmates) with parted lips and avaricious eyes.

"So, with that understanding of erogenous zones and the three useful holes, you're in a pretty good place to start your full, conscious sexual lives," Ms. Poundwell says, sounding like she's arrived at a point. "Focus on stimulating different erogenous zones on your partner, and stimulating them in different ways - just like each person's zone preferences are different, the type of touch each person responds to will vary, as well. Sometimes a gentle stroke is all that's needed..." Ms. Poundwell has been toying with Nat's clit, and now she drags two fingers firmly, slowly up her folds, making Nat moan. "...and others prefer a bit more energetic stimulation!" She gives Nat's cunt a sharp slap, and Nat jumps and yelps. "Of course, once a girl's agreed to fuck, it's a pretty safe bet that she'll be pliable in your hands, given how NFE works, boys. So don't worry and enjoy the chance to play her like a piano. But keep in the back of your mind, always: the more stimulation you give, the closer she gets to FES." Ms. Poundwell has continued to play with Natalie's clit, and is now stroking and occasionally tweaking her nipples as well. Nat moans and writhes against her bonds. "Look at Natalie; I don't even have a cock, and she's practically a puddle here for me. That's why it's important to be careful with the girls in your life. You don't want to blackband a girl who could be useful in other ways, and given how fragile and needy women's bodies are, it can be easy to do without thinking." She smiles and steps away from Nat, who shudders on her stool, quivering with the pent-up, burning want in her. "Well, we're pretty much at time. For tomorrow, I want you all to read the first chapter of your textbook: remember, for the boys, that's Control and Cum-mand: The Uses of Sluts in the Modern World, and for the girls it's All Holes at Heart: Female Solidarity in Sexual Service." The bell rings. "Dismissed!"

As Nat sits on the stool, still nude, shackled, and shaking, her fellow students gather up their belongings and finish their fucks. She can hear Celia gurgling under a desk as her boyfriend shoots waves of spunk into the girl's throat; in the back of the room, the blackband girl is lying on the floor, quivering and coated in cum, as a last couple of boys jerk off above her. As the students file out, one boy approaches Ms. Poundwell.

"Sorry, Ms. Poundwell, but I'm still hard," the boy, who has a pimply face and slender body says awkwardly. "Never got the chance to use the blackband. Do you think I could...I mean, do you think she would mind if I...?"

"You have to ask her, silly! But that's why I left her up there, yes," Ms. Poundwell says with a laugh. "Natalie, is it ok if Frank cums on you? I'll give you a nice orgasm if you say yes."

Frank looks over at Nat eagerly, eyes roving hungrily down her body over her tits and to her exposed, sopping cunt.