Princess Cadance smiled at the class. “Alright everypony, are you ready for our final lesson?”

Pipsqueak was right there with all the other fillies and colts when they let out a collective whine. This class was so much fun! How could it already be ending?

“No, no, none of that.” She actually laughed a little bit. “There are quite a lot of other schools in Equestria that need my help. And even though our lessons will be ending soon, that doesn't mean your fun is over. The contraceptive spells I put on you all at the beginning of this class will remain in place until you ask a unicorn to dispel them, and I truly hope you'll take what I've taught you here and apply it to your everyday lives outside of class.” Cadance turned, then snuck a conspiratorial glance at all of her students. “Or perhaps even inside of class, but don't let Miss Cheerilee hear that I've been encouraging any such thing.”

Well, that was true. But still... Pip hoped the fun would indeed continue after the sex ed lessons were over. He couldn't help thinking that things might slow down a bit after that, though.

“Now, who would like to be my brave volunteers for this final lesson?”

Pip shot his hoof up as high as he could reach it, even standing up a little bit in his chair. This was the very last lesson, and he still hadn't ever been picked to be the volunteer to demonstrate anything. If he didn't get picked this time, there would never be another chance!

“Yes, Twist, how about you. And, hm... We'll need a colt as well...”

The need to be picked burned inside Pip like few things ever had. He waved his hoof until he was blue in the face.

“Ah, of course – Pipsqueak. Why don't you come up to the front? You'll do nicely.”

Yes! Pip almost fell out of his chair. Yes! She'd finally picked him! It was really happening! For a moment, he was so elated that he forgot anything else, even forgot to go to the front of the room. Only when Cadance waved him forward did he actually come back to himself and remember.

As he hurried to the front of the room, Cadance resumed her lesson. “Today, we're going to talk about fetishes.”

Twist, already by Cadance's side, tapped her hoof against the Princess's leg. “Um, missuth Cadanth? What's a fetith?”

“That's an excellent question, Twist.” Cadance smiled down at her.

Pipsqueak rolled his eyes a little as he joined them at the front of the room. More like an obvious question.

“A fetish is something not inherently sexual that a pony grows to find sexual pleasure in, and perhaps even get obsessed with.”

Wait, did she say non-sexual? Pip stifled a groan. He'd finally gotten picked to volunteer, but it was for the only lesson that wasn't going to be about something sexual? Of all the rotten luck...

“There are many, many different fetishes out there. Some of the more common ones are hoof fetish, bondage, role-playing, watersports, pet play, vore... There are so many. No need to explain all of those just yet. Almost anything can become a fetish to the right pony. I once met a stallion who had a fetish for giant jars of jelly.”

“Wait,” Pip said, “I think I've me that guy too! He lives right here in Ponyville. You mean Jim Jam?”

She grinned. “Well, I wouldn't want to go around spilling ponies' secrets.”

“It's not much of a secret.” Pip shuddered a little as he thought of the sight of Jelly Jam with his tubs of jelly. Thankfully it was something Jim Jam usually didn't do in public. Usually. “We don't have to do that stuff with the jelly, do we?”

“No, no. Don't worry about that.” She patted his head. “We're going to start the class off with a little demonstration of a couple easy fetishes to get into: a bit of light bondage and some role play. Can anypony tell me what those are?”

The class was silent for a moment, but then Apple Bloom raised her hoof. “Is that when ponies tie each other up with ropes?”

“That's right! Though it doesn't have to be ropes. It can be hoof-cuffs, straps, or anything else that restricts a pony's movement. I see somepony has been studying ahead.”

Apple Bloom blushed. “Naw... I've just got a really great sister is all. She teaches me knots and stuff sometimes.”

“That's very wonderful to have – don't ever take her for granted. Now, can anypony tell me what role play means?”

The room went silent.

But Cadance just shrugged it off. “Role play is when lovers pretend that one or more of them is somepony else.”

“Ooh,” Diamond Tiara blurted out without raising her hoof. “Like a changeling?”

Cadance's eye twitched slightly. If Pip hadn't been standing so close to her, he probably wouldn’t have been able to see it.

“Yes, the changelings are masters of this, in a way. Though to do it properly, it should be something that both ponies know is happening, and you should be doing it to enhance each other's pleasure, not to steal love that doesn't belong to you.” She took a deep breath. “You can role play as any kind of pony. Maybe a nurse, or a Royal Guard, or a sexy librarian ... it could be anything.” She turned toward Pip. “Pipsqueak, is there any kind of special pony you wish you could be with?”

For a moment, Pip thought of Twilight Sparkle. Cadance's mention of a sexy librarian just brought it into his mind. But then he remembered that Twilight was more of a princess now than a librarian. And that got him thinking about other princesses... “Oooh! Could you pretend to be Princess Luna, or ... or even Nightmare Moon? She's my favorite!”

“Of course!” She looked down at him knowingly. “But I'm not going to be the one playing that role. Twist is.”

Pip and Twist looked at each other, wide eyed. He had no idea what she was thinking. All he could think about was how in the world either of them were supposed to make believe that Twist was the dark and powerful Nightmare Moon. It just seemed too much of a stretch!

His mouth fell open all on its own, but he took the opportunity to get a single word out: “How?”

“Oh, you'll see. Or, actually, you won't see. Because first, we'll start with just a little bit of the bondage.” Cadance levitated a blindfold up from behind the teacher's desk. “Twist, would you do the honors?” As Twist awkwardly fumbled the blindfold onto Pip's head, Cadance addressed the class, “Bondage can include more than just physical restraints – it can also involve restraining the senses, just like Twist is doing with this blindfold.”

It slid into place over his eyes, blocking all of his vision. He could still hear everything, though – everything from Twist's breathing still right up next to him to all the little noises the young ponies in the class made, reminding him that they were all still watching.

He squinted into the dark fabric. Nothing to see at all. “How's this supposed to help? I like seeing who I'm with.”

Cadance didn't respond to him. Instead, she whispered something to Twist. He couldn't quite make it out.

“Um, Princess Cadance? I don't—”

“Your prethious little printhess can't thave you now, puny foal!” It was definitely Twist's voice, but she'd never talked to him like that before! “Did you really think you could get rid of the rightful ruler of all Equethtria jutht like that? I have returned, and now I will take vengenth upon every thingle one of you pathetic day ponies!”

“What? Twist, what are you talking about?” Pip raised his hoof to slip the blindfold off his head and see what was going on, but somepony's hoof stopped him before he could. Cadance whispered something again, just on the edge of what he could hear, but he couldn't quite make out the words.

“I am not Twitht! I am Nightmare Moon!” Instead of letting go of his hoof, she pulled it back, forcing him to rear up on his hind hooves. Something clinked and rustled. Before he knew it, his hoof was strapped to the teacher's desk. “And now, you will learn to be a good royal thubject, or you will be dethtroyed!”

“Ah, Twist, I—”

“Now now, Pipsqueak,” Cadance's voice cut in. “In order for a role play to work well, you need to play along. Everypony involved in the role play should act as if it's real in order to make it feel real.”

But how could he? Not when... “But it's just... Her voice isn't...”

Cadance tittered a little. “Yes, I suppose I could see that. She doesn't exactly sound the part, does she? ... Oh, don't look like that Twis— I mean Nightmare Moon. You just need a little help. A bit of magic goes a long way when it comes to role playing.”

The slight sound of magic being cast came to Pip's ears, but only for a moment. By reflex, he looked around, even though he knew he couldn't see anything through the blindfold. “Did it work?”

Another strap snagged his other forehoof and snapped it back against the teacher's desk, quickly attaching him in place. “You tell me, my lowly subject.”

That voice! So deep and dark and authoritative! It sent shivers up his back right away, even though he knew it must have still been Twist. “N-nightmare Moon!”

“That's right.” She cackled with evil glee. “And you can say goodbye to your precious sun – forever! I have come to claim what is rightfully mine!” She came even closer, whispering coldly in his ear. “And you ... you, my delicious little snack of a foal.” Her tongue suddenly touched his ear, making him flinch. “You have the very special privilege of being the first new subject converted to the rule of the night.”

“I'll ... I'll never give into you, Nightmare Moon!” Was that the right thing to go with? Cadance had said to play along like Twist was really Nightmare Moon, and that's the kind of thing any good pony should tell a villain like that, right? Or was he supposed to give in? Might as well double down on it. “You'll never win!”

“Oh, but I already have!” Two more straps came out of nowhere, binding around both his hind legs. She had to have been getting some magical help!

The straps pulled his hind legs apart a little, before also being bound to the desk, holding him completely in place, spread out in front of the whole class. At least his cock was still inside his sheath and he wasn't unknowingly showing that off to everypony.

“And now... Now you will learn to serve your Mistress of the Night. You will have the honor of being the first of my many loyal subjects!”

“No!” Pip yelled. “I will never serve you!”

“Oh we'll just see about that...”

“W-what are you planning? I won't do it!”

Nightmare gave a deep, sumptuous chuckle. “Oh? I wouldn't be so sure if I were in your place.” Her hoof traced lightly down from his chest toward his belly, tickling his fur along the way. “I can be very persuasive.”

“I... I don't...”

Nightmare's hoof stopped just above his sheath, barely touching him at all. He could only feel the way it brushed his fur slightly. Before he even knew it, somehow her face was right up next to his. Her breath played over him as she said, “What would it take, I wonder? How long will it be until you're begging to devote yourself to the service of eternal night?”

“I... I'd never—”

Nightmare's tongue touched him, just the tip of it against the side of his muzzle, but he could just imagine the long sinuous length of it between her sharp teeth. It made him shudder ... and it made his cock slip out of his sheath a little bit.

“Oh, what's this?” She laughed self-assuredly. “Succumbing already? So soon?”

“I...” The more he tried to fight it, the more it ended up turning him on. More of his cock slipped out.

She slid the tip of her hoof sensuously close to his cock, but never quite touched it. “Look at you. Deny it all you want, but your body is already answering to my will. And oh what a tasty-looking body it is...” Her voice trailed downward as she lowered her head close to his rapidly growing cock. “I hadn't expected such a small subject to be so well endowed. Truly, you were destined to be the first of my devoted subjects.”

He could feel her breath against his belly near his sheath. And then there was her tongue along with it, once again lightly caressing him. His cock rose up to full hardness he couldn't help it. Just the thought of what Nightmare's tall, lean body bent down in front of him like that...

“Your body has already given in. There is no use in denying it. You want me – you need me. All you have to do is say it. Admit the truth.” Her tongue trailed perilously close to the base of his sheath before she took it away again. “You do want me to do this, do you not? I can feel the warmth of it begging for my touch.”

“I...” He tried to be strong, he really did. But there was no denying it. “I do! I do want it!”

“Hmm, yes...” She licked up his sheath lightly, but stopped just short of his actual cock. “Of course you do. And I'm going to give it to you...”

Yes! Yes!

“...But not yet.”

What? Pip strained against the restraints, but it was no use. He couldn’t move.

“First you have to beg for it.”

“What? But I...”

“Oh my, that won't do. That doesn't sound like begging at all.”

He could feel her silky warm breath against the bare skin of his cock. He needed to feel her long, slithery tongue there! “Please!” he said. “Please do it Nightmare! I want your mouth on me. I'll do anything!”

Nightmare planted one long, slow lick from the base of his cock to the tip, playing it skillfully side to side as she went ... but that was all she gave him. “Anything, hmm? I think perhaps it is time to test this devotion of yours.”

“Please, Nightmare!” Pip begged, “Please don't stop – more!”

“No... No, I think not. Good subjects would not dare to say my name with such casual disregard. I am your Mistress of the Night, and I will be addressed as such.”

“Please, Mistress! I need more of you!”

“Oh, you'll get more. You'll get more than you can handle!” Hooves shuffled against the floor. The slight tingling sound of magic came again. Her tail brushed against his face. “It is time for you to prove your devotion, slave. Please your queen!”

Without any further warning, soft warm ass cheeks pressed against either side of his face, and a hot, soft pussy all but enveloped his muzzle. At first, Pip was too shocked to do anything at all. Nightmare Moon! Right in his face!

“What are you waiting for, pathetic foal?”

What was he waiting for? Pip snapped out of it, and he went right to work, licking Nightmare Moon's supple pussy lips. To think that he would ever have a chance to do that! Even though he was still blindfolded, he could just imagine her luscious blank and purple ass cheeks pressing against either side of his muzzle. When her pussy winked open, he gleefully licked at the slick warmth inside, making her moan deeply.

Pip felt like it would be natural to reach up and wrap his hooves around her flanks as he licked her, but the straps around his hooves prevented him from moving at all. He pulled at them, but nothing happened. He was completely stuck and the only thing he could do was exactly what Nightmare Moon wanted him to do.

So he gave into it. He did his best to apply everything he'd been taught about pleasing a mare. Well, not everything. There was no beginning with slow teasing here – that wasn't an option. But he could still caress every last bit of her pussy with his tongue: the round bulge hiding her clit, her soft and smooth lips, and especially all the syrupy-hot insides he could reach whenever she winked for him.

It was kind of surprising, really, how warm and soft Nightmare Moon felt on her intimate side. For all that she looked cold, dark, and scary, getting in touch with her softer side actually ended up being delightfully plush and steamy. He did everything he could to earn this impossible experience, completely devoting himself to his mistress's pleasure, wrapping his lips around the bulge of her pussy and suckling her for everything he was worth.

And it seemed to be working! Nightmare's winking clit plopped out against his face more and more often. She let out deep, throaty moans. Her breath came in quick gasps between the arrhythmic squeezing of her body.

Nightmare Moon pressed herself back against him hard when she came. Strapped in place as he was, there was no reprieve, no escape from the pressure and the squirt of lunar nectar that coated his face. He was her plaything, to be used exactly as she saw fit. And how she saw fit in that climactic moment was to push back against him and wiggle her flanks side to side, grinding her gushing pussy against his muzzle. In that moment, his entire world narrowed to the hot gap between Nightmare Moon's ass cheeks. He felt nothing but her softness, her heat, and her wetness. He heard nothing but her moans. He smelled and tasted nothing but her tangy musk. And, of course, he still couldn’t see anything at all.

When she finally pulled away from him, he breathed as deeply and as desperately as she did. His muzzle dripped with her juices. How long had it been since he'd been able to take a full breath?

Nightmare, of course, recovered much more quickly than he ever could. She came right back to him, running a hoof down from his cheek to his soaked muzzle. “Oh my... What a lovely servant you will be, once you've been adequately trained and your loyalty has been ensured.”

“W-what do you mean?” Hadn't that little display of devotion been enough for her?

“You forget yourself, foal!” Nightmare's voice was cold enough to send shivers down his spine.

He gulped. “Uh... What do you mean, Mistress?”

“Better.” She huffed indignantly, and he could feel it against his fur. Her hoof traced light circles around the tip of his cock, making his hips jerk a little, but she never gave him the slightest bit more contact than she was already doing. “But there is still one thing I need from you...”

“M-my cum, Mistress?”

Her hoof curled down around his balls, hefting them and rolling them about. “This? Hardly. Do you really think you're worthy to impregnate the Queen of the Night?” She let him go. “No. What I need from you is a pledge of your eternal loyalty and service.”

“I—”

“Do not take such a vow lightly, foal. My magic is stronger than you know, and it will hold you to your word!”

Wait, was ... was she serious? “I... I can't do that!” What about all the other ponies he cared about? What about Princess Celestia, and the sun, and the whole world? He couldn't betray them like this – it wasn't right! “I won't!”

“Oh, you will.” The utter confidence in her voice shook his meager convictions to the core. “You'll do it because it's the only way to get what you need.”

“W-what's that ... Mistress?”

Her rump suddenly pressed up against him. Her pussy winked against the front of his cock, soaking her juices onto it. “My luscious dark pussy wrapped around your eager little cock, of course.” She chuckled evilly. “Don't even bother trying to deny it. It's so abundantly obvious. I can feel your every throb and twitch.”

It was true that there was no use denying it. The feeling of his cock sandwiched between her firm ass cheeks and kissed by the soft wet heat of her pussy was driving him mad. He needed her. He needed her more than anything.

“What's the matter, little foal? Have I left you speechless?” Nightmare slid her ass up and down against his cock a little bit. “All you have to do is say it. Then you can have everything you need, everything you want. You can have me!”

But no, he couldn't! He couldn't betray Equestria and everypony in it like that! He tried to pull himself away from her, but of course he couldn't. The straps held him firmly in place against the desk as Nightmare taunted him.

And even though it was just a tease, it was oh so much more. The wetter and slicker his cock became, the more she moved. Soon, she was grinding against him so much that she made herself moan. Her clit winked out again and again, kissing the front of his cock, smearing her warm juices all over it. Her fuzzy warm ass cheeks hemmed him firmly in from either side, adding to the up-and-down stroking motion.

Pip struggled to stay strong. For a time, he was even successful at it. But soon, the thought of her lean black body and perfectly curved purple ass was all he could think about. The desperate warmth of her pussy called to him. Her misty, sparkling tail rubbed against his underbelly, feeling oddly like ordinary hair, but that just made things even more alluring. It felt so real! All he could think about was getting his cock inside her and filling her. He needed to be inside her! Oh this felt so good! Why was it so good? He had to resist, but he couldn't – he just couldn't.

Still, he managed to hold out just a little longer. Maybe it was just because it was hard to breathe anyway. He would have struggled to even get the words out. Nightmare Moon didn't let up, though. The sensuous rubbing of her ass and pussy against his cock was driving him crazy ... and driving him toward something else as well.

When he felt the tip of his cock swelling into a flare, he finally couldn't hold it in any longer. “I ... I need it! I need you, Mistress!”

“Swear to me! Pledge me your life, your loyalty, your love!”

He trembled in place, trying to hold himself back, but it spilled out anyway: “I swear it!”

Nightmare slid upward on his cock, moved slightly away. His flared tip pressed right against her pussy. He could feel her winking there. But she didn't push herself down on him. “Say it! Swear your oath to me, foal! Give me everything you have!”

“I swear I'll serve you. I'll be loyal, I'll give you everything you ever ask for! Just please!” He pulled hard against the restraints, but no matter how much he pulled, it was never enough to let him push into her sweet pussy.

“Excellent.” She laughed again – the kind of laugh that could turn a whole room frosty. “There is but one service I demand of you, my loyal subject.”

“Mmnh!” Pip was getting rather beyond the point where he could form coherent words.

Nightmare Moon shoved herself down on his cock. The slick wet warmth of her pussy slid over his flare effortlessly and continued on, sliding down the entire length of his shaft and just smothering him in her inner heat. “Breed your queen! Your mistress demands foals! Fill my womb and seed the new generation of the night!”

As Nightmare Moon pumped herself up and down on his shaft, Pip lost it. He couldn't help but do exactly as she demanded. He let out a long, shuddering moan as the first stream of his cum shot out inside her.

She pushed herself all the way back against him the moment she felt that, and since he couldn't move at all, there was no avoiding what came next, even if he had wanted to avoid it. He came with what must have been the biggest, most prolific orgasm he'd ever had. Prodigious gushes of his cum pumped straight into Nightmare Moon's waiting womb, flooding inside her and no doubt making her pregnant just as she'd told him to.

Pip felt dizzy, woozy, like he might just collapse right in the middle of his orgasm. Maybe it was being on his hind hooves too long. Maybe it was just the intensity of the moment. But he struggled against it, holding himself tight as his cock spurted out the last of his cum inside Nightmare Moon. He was not going to miss this moment, not for anything. It wasn't every day a colt like him got to impregnate the Queen of the Night, the dark ruler of all Equestria!

The whole time, Nightmare kept herself pressed right up against him. Her ass cheeks pressed against his groin, and his cock was kept securely within her tight warmth. Her pussy pulsed, milking every last drop out of him. Only when his cock began to soften inside her did she finally step away, letting it fall out of her. He heard the little splash that came afterward. Oh goddess, what had he done? He'd ... he'd sworn loyalty to Nightmare Moon! He'd impregnated her! There would be no coming back from this. He was doomed to be a servant of the night forever now This darkness would be eternal, and he would—

Cadance pulled the blindfold away from his eyes. He blinked, trying to clear away the dazzling light of ... the classroom!

He stared dumbly for a moment at all his classmates staring at him ... at Twist, standing in front of him with her tail raised and cum dripping out of her pussy. His cum dripping out of her pussy.

Wait! It had all just been a fantasy! It was Twist all along! He hadn't impregnated Nightmare Moon – he hadn't impregnated anypony. Cadance's contraceptive spell was still in effect on both him and Twist. It was all ... all playing a role. How had he forgotten that? It had felt so real...

“Wonderful work, Twist!” Cadance beamed. “You followed my instructions perfectly, and I have to commend you for that little bit at the end. It was truly an inspired choice to mix in a little bit of impregnation fetish to top everything off.” She turned to the class. “Now, impregnation might not quite qualify as an actual fetish, since it's always related to sex, but the definition of a fetish isn't quite so formal, and it can definitely count if you feel like it's a fetish for you.”

Twist unhooked the straps from his forehooves, finally allowing Pip to drop back down to all fours. “That wath pretty thweet, wathn't it?”

He nodded slowly as she freed his hind hooves. Visions of Nightmare Moon still danced in his head. Even though he knew better, it still somehow felt like he'd actually done it with the fearsome Queen of the Night. “Yeah ... sweet.”

“Now, class, for your final homework assignment for this class, I want each of you to take one of these.” Cadance used her magic to hold out a whole slew of glossy brochures, fanning them out like a deck of cards. Each one was different, and there were very interesting pictures on the front of each one. “Every one of these describes a particular fetish. Your assignment is to take one of these, find a willing partner if necessary, and practice this fetish with them. Pipsqueak and Twist are excused, of course, since they've already tried out a couple of lovely fetishes during the demonstration.”

A wave off fillies and colts crammed up around the teacher's desk, all clamoring for the best of the brochures. Pip was pressed up against the desk again, this time just by the crowd of excited young bodies. Some of them were stepping in the mess he and Twist made ... none of them seemed to notice or care.

“Easy now, everypony. Don't rush! There's plenty for everypony!” Cadance passed out brochures as fast as she could, but it still wasn't fast enough to satisfy the eager crowd. “And remember, if your fetish requires any special equipment or supplies that you don't have, just ask me, and I'll be happy to provide it for you!”

Pip just tried to relax amidst all the commotion. If he closed his eyes, he could still see Nightmare Moon...

Author's Note

Choose your own adventure!
So, for the final homework assignment, which fillies and colts have picked which fetishes?
Let me know in the comments, and I’ll pick the best/most popular to write into the next chapter!
(Bondage and role play aren’t options, since they’ve already been done.)

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