A mess. The biggest mess Derpy had ever had to deal with, was this. And I don’t mean the situation she’s gotten herself into by destroying something of Celestias, oh no, I mean the literal mess that’s covering her living room.

After arriving home and sitting down, the mare had spent a good five minutes watching herself grow the genitalia of a hung and virile stallion, before spending hours using it. The behemoth was just there, needy, begging for her touch it whilst sending unfathomably enticing waves of arousal through her. So what choice did she have other than to give in to it’s demands?

That’s where it began anyway. She jacked off elatedly, moaning freely as she forgot all rational thought and only focused on imagining sexy mares’ bodies. It was addicting, and when the orgasmic end arrived, her having emptied her balls everywhere, she couldn’t stop herself from going again. And it was just as good as the first time (if a little harder to cum), then -once again- Derpy came, hard, her noticing she ejaculated the same amount the second time as the first.

On and on the cycle went, with the mare letting her second head think for her as she went at it time and time again. Only on her third round however a problem decided to reveal itself: just imagining mare’s bodies wasn’t enough.

So, despite her former adamancy, Derpy’s mind started creating fantasies, ones of the mares she knew and what they could do to her. You see, Derpy Hooves has always known she’s a submissive bottom even as a virgin, so rather than thinking about having her way with some mares, she reluctantly fantasised about mares having their way with her, the ponies riding the new girthy schlong that she’d grown a bit fond of.

Like you’d expect, it fuelled the fire in her loins plenty, and she never stopped at just three orgasms.

And now we’re here. She’d lost track of how many times she came, but the most shocking thing was that Derpy knew, she felt it within her, that she could keep going if she really wanted to. But she wouldn’t, the sun was just about to set and she needed to rest for a little, so the pegasus didn’t budge from her chair, not even moving as she kept her legs spread wide, the huge pole retreating back into it’s sheath.

She breathed in through her nose deeply, trying to take it all in and calm herself. It didn’t work. Inhaling deeply, Derpy had just taken in the dirty, musky stench of the room, the one that she’d created. As it was hers it didn’t affect her much, but from the… potency of the arousal in it she was sure that other mares would-

No Derpy! You can’t be thinking of them like that… N-Not anymore anyway… She’d cum to so much that she doubted anything hadn’t been thought of. There was wondering what a blowjob from Fluttershy would be like, wondering what Pinkie Pie’s ponut’d feel like, she’d even thought about how good it’d feel if she were to empty a load deep inside Princess Twi- “Oh SHIT!”

Leaping off the comfy chair, the revalation struck her instantly: she still hadn’t told Twilight about… well, everything!

Oh no, oh no, oh no! Breaking the princess’s parcel was a terrible thing she’d done, but doing it and not telling her about it? Not even apologising for doing it? She didn’t know the heinous consequences yet but she would certainly have to suffer them! O-Okay, so if I go over to the princess’s castle now then m-maybe she’ll forgive me. Derpy just had to hope Twilight Sparkle/The Princess Of Friendship had an unlimited supply of forgiveness at her disposal, because if not she’d be doomed!

Before she hit the floor, landing in some of her own lewd, thick juices, her wings sprung up, lifting her as she flew above it, narrowly avoiding getting it on her and making her need to wash (though she probably needed to anyway). Flapping above it, she wobbled around a little bit. It wasn’t because of her usual clumsiness, but because of the new weight at her backside of the hefty balls weighing her down. Quickly though, she managed to place herself on dry land on the other side of everything she had drenched in so many loads of her cum.

Alright, now to Twilights! Having vacated the living room, Derpy speedily and determinedly trotted to her front door, but only as her hoof landed on the handle to open it did she realise just what she nearly did. WAIT! I-I just- Yep, she nearly walked out there, in public, with her new genitalia here, in the open, for all ponies who saw her from behind to see. Wh-What am I going to do?

The mare genuinely had no clue. As she paced back and forth at the door, trying to think of anything, not many options came to her, so she had no choice but to consider two: either she goes out there and hopes that nopony sees her (considering it is about 9:00 in the afternoon), or she can cover it up, maybe drawing more attention to herself as ponies very rarely wear any clothes.

Hesitantly and worriedly, Derpy made up her mind. Spying the tall mirror next to her front door, she slowly turned to point her flank at it as if ashamed of herself, and then she lifted her tail. Looking back into the mirror, Derpy analysed her own rear.

Making up her booty was two big, round, grey cheeks. She often got the nickname ‘Bubble Butt’ when she was at school because of her cutie mark paired with how jiggly her juicy ass was. In between the enticing buttcheeks (ones fit for a fat-ass mare and not the hung stallion she now is) lay her ponut. It being a the same grey as the rest of her, the enticing and protruding hole did look delectable, even she had to admit it looked good. But below her pucker was the far-more-noticeable testicles that created what had ruined a good portion of her living room. Both bigger than baseballs, her new cum-filled balls did stick out on the rest of her curvy flank, the hanging (and admittedly tasty-looking) testes more than noticeable with their size. For them to just appear on her -the real eagle-eyed of ponies also noticing her sheath- would attract attention.

But what choice do I have?! That’s the problem, she had no choice here, and all she could do was pray to Celestia that ponies wouldn’t take any interest in her. So stood at the door to outside, Derpy took deep breaths in and out, calming herself successfully now that the stench of her fun earlier was a room away. Looking up at the wooden door blocking her path, her gaze turned to one of no panic but still not confidence as she placed her hoof on the doorknob. It’s now or never…

And so, Derpy opened it, stepping out and acting calm despite her worries. She set off soon after that.

Making her way through the village, what Derpy hadn’t wanted (yet what she likely should’ve expected) began happening. Every single mare she passed looked at her, and they all never stopped looking at her, seemingly mesmerised by her for whatever reason.

Originally she had set off walking, but a walk turned into a jog, and a jog very quickly turned into a sprint. She wasn’t passing many mares, but all of them turned to practically ogle her, so that’s why her hooves let her gallop through the streets to Twilights with her balls visibly and audibly swinging behind her, making them all the more noticeable on her.

Please, please, please! It was her earlier actions too, the fact that she’d been beating her meat to these same ponies that looked at her. It felt like they knew somehow that she’d been lusting over them, so Derpy didn’t care that her lungs or thighs burned, all that mattered was that she’d be able to hopefully hide within the Crystal Castle at the end of this revealing exhibitionist-esque journey.

Eventually, Derpy found herself out of the watching eyes of mares that (unknowingly to her) had in fact been interested in her for a different reason. On the castle’s doorstep, she was able to find some reprieve, enough for her to catch her breath and be content knowing that nopony was around to spy on her newly-adjusted body. And after Derpy rested, her hoof was able to raise itself to knock.

She faced forward, making sure that the… oddities on her weren’t immediately noticed by the princess with her front legs trying to block any of the sheath from view. And on that note she struck the door multiple times, preparing herself mentally for what she was sure would be a furious alicorn greeting her.

Bang! Bang! Bang!

With the grand doors shaking and the echoes of the knocking travelling through the castle halls, it was time.

Poof!

Poof!

Ugh! This better be good. Teleporting to the castle’s doors, Twilight wasn’t really in the mood for any visitors. All day she’d been expecting some mysterious item from Princess Celestia and nothing had arrived, so she really wasn’t in the mood to deal with whomever demanded her attention. Usually she wouldn’t be this upset with something, and she’d especially not want others to see her like this, but for something from Celestia herself to go missing was enough to ruin her day. Let’s just get this over with.

Not really bothering to hide her mentally exhausted attitude, she lit up her horn, with a purple aura surrounding the doors as she did.

I mean, who even comes to the castle this late? The sun’s just about to set! Clearly she wasn’t going to be happy with the pony on the other side of the doors, so, without calming herself, Twilight swung them open, already glaring at her visitor. “Wha-“

But, in an instant, as soon as her eyes spotted the mare waiting to see her, all of the anger and stress of the day was washed away. Before her stood a pegasus she’d seen before, but Derpy Hooves now didn’t look like she had then. Twilight couldn’t quite figure out what it was, but whatever was making the pony before her more… attractive was working. Everything about her seemed the same from this angle, yet despite that, Twilight’s body screamed at her in a way it never had before, commanding her to…

Mate with Derpy. Worship her and what’s between her legs and bury it deep inside yourself. Let her dick fill you entirely before it cums straight in your womb, impregnating you with her foals and pumping you full.

You exist to bring her pleasure, and she can give you so much in return.

Love your stud. Worship your stud. You need your stud.

The typical Twilight Sparkle would be a blushing mess at the very thought of such… dirty acts. But she wasn’t embarrassed, or bashful, or even ashamed. Instead a rush of confidence floods through her, giving her the chance to take what she not only wants but needs for herself, a chance she’s suddenly more than happy to accept.

Wait, Derpy doesn’t have a dick. She was pretty sure she didn’t anyway, but at that moment her thoughts were interrupted.

“I… P-Princess Twilight!” Guilt written all over her face, Derpy got to bowing deeply for royalty. She’d caught how angry she had looked, so couldn’t bare to look at the mare she’d failed.

What the exclamation also did however was knock Twi’ out of her thoughts, the ones that were far hornier than they should be. Looking down, she spotted the grey mare that she was suddenly obsessing over on the floor, and she couldn’t let her stay down there, could she? “De… Derpy, you can get off the floor.” She didn’t know what compelled her to need to be closer to the grey mare, and really, Twilight didn’t want to know. Every part of her yearned for the pegasus before her, so she didn’t need to know, she just needed Derpy. “You know what? Actually, come on in! You can tell me all about why you came to visit inside.”

Outside, Derpy suddenly felt herself become even more cautious. Twilight had sounded pissed when opening the door, but now she was sweetly inviting her into the castle, her tone welcoming whilst also making it sound like she had little choice in the matter. This isn’t gonna end well, i-is it? Timidly, Derpy rose up, and ashamedly shuffled inside. She made sure to hide her hidden fifth leg whilst doing so, keeping it out of view, though the princess would have to see it eventually.

Stepping in, there was a warm atmosphere to the place, and Derpy could tell it was magically heated-up, but she did still feel a shiver down her spine, as if she was prey walking into a predator’s den.

Meanwhile (during the pony’s panicking) Twilight Sparkle was thinking through some sort of plan. Her body yearned for whatever it innately knew was between Derpys legs, so there was really only one option: Derpy was staying here for the night, whether she wanted to or not. Twilight was sure that she’d be able to make her, and if that led to Derpy being seduced by the princess and her admittedly desirable body then it wasn’t her fault.

Turning around, Twilight walked in front of her as they set off. Happily, the alicorn tried to start a conversation with the mare she already couldn’t stop thinking about. “So Derpy, we can chat all about why you’re here when we reach the library, but why don’t you tell me a bit about yourself. I just realised I don’t know that much about you and would love to get to know you more.” Once again, her tone sounded nice and friendly, but there were definitely traces of ulterior motives behind them.

“W-W-Well, umm…” And Derpy noticed the tone, but she noticed more than that. She also picked up on the very deliberate and incredibly exaggerated sway in Princess Twilight’s behind, but that still wasn’t all...

Silently following behind her, Miss Hooves’ jaw dropped, it not closing and her eyes not moving from the gorgeous ass being presented to her. And ‘presented’ was the right word for this situation, because the purple pony had lifted her tail high, and every part of her was being purposefully shown to the desirable Derpy: her big and bubbly buttcheeks, her cute and kissable ponut, her wet and winking pussy, and even her perky yet plump teats hanging below.

It’s safe to say, Derpy got mesmerised by the sight, exactly what Twilight wanted. Call her an exhibitionist, but she loved how her body had stunned her newest obsession into silence. She could feel her eyes on her, and found the gratifying sensation so thrilling! Yes she’d just asked the cute mare a question a second ago, but this empowering silence was a drastic improvement over whatever adorably awkward answer the blushing Derpy would’ve given her.

However, despite Sparkle having a great time under watchful eyes, her crush wasn’t doing so good. Nooo! Go back in! Go back in! In both mind and body, she greatly appreciated the view, but her body was enjoying it way more than her semi-rational mind wanted to. Under her, as they both kept trotting to their destination, her horsecock was trying to slide itself out of its sheath, and Derpy was trying her best to hold it in. Ngh! P-Please! Even though the princess was putting out some very… provocative signals, the pegasus couldn’t let her dick just hang there erect for the royal to see. Even if she was here to deliver news that wasn’t terrible then it would be a mortifying experience for her.

The short walk continued in that way. Twilight strutted like she had all the confidence in the world, and she may as well have, even adding a little pep into her step to let Derpy see her plump rump jiggle. But Derpy herself, she wasn’t enjoying the stroll as much. Sure she got a great view, but with her downstairs ‘problem’, the view was only a hindrance. Her gait was stiff, however it was only because she was walking in the way that made it easiest to hold in the agonising tension at her groin. With every second, her huge, throbbing dick kept threatening to shove itself out from within her, so (even though a huge part of her wanted to) she couldn’t enjoy the show being put on for her.

“Here we are!” Derpy praised Celestia as they reached the room. It felt like she’d had to endure that teasing torture for hours, when it hadn’t even been five minutes.

With one gleefully striding in and the other shuffling in behind her, the pair entered one pair of the castle’s grand doors, walking into a large, pristine room with books on shelves all around it and a wooden table with chairs in the middle. Other stuff were strewn about as well, but Derpy didn’t bother noticing them, her still trying to stop looking at the magnificent behind of the princess.

“Take a seat then! I wanna hear all about what you came to visit me for!” Bouncing over to the table, Twilight let Derpy meekly take her seat on the opposite side of it, assuming they’d be sitting across from each other. It was convenient for her, as this angle hid her genitalia from view of the alicorn. But right as Derpy dropped her chubby ass onto her stool, she watched Twilight levitate hers up, and move it right next to hers.

Alarm bells rang, and in a nick of time, Derpy had managed to close her plump thighs together, placing her hooves over the rest of her sheath that was left showing.

“So Derpy…” Seated right next to her, Twilight let her own bouncy butt fall down, with the purple mare facing who she’d accepted as the one and only pony she’d ever love and worship. “Why’ve you come to see me? Not that I’m complaining.” Just looking at her was enough to make Twilight beam with joy and her lower lips drool with need.

But Derpy was too busy calming herself down to notice the smitten attitude that hadn’t faltered. She’d hyped this conversation up in her head so much that her mouth just couldn’t get the words out. Deep breaths… Deeeeeep breaths… Only after a minute of being watched relaxing could she do it, but still she didn’t want to. She had to though, so she began meekly. “Well… Y-Y’know how you were supposed to g-get something from Princess Celestia… i-in the mail?”

“Yeah, she sent a letter about it. She said it was some kind of ancient, important potion… Why?” No matter what it was, she didn’t want it upsetting her stud like this. Wait. Stud? Twilight had never even thought about having anything like that before, but the phrase felt so right on Derpy that she didn’t bother thinking about it too much.

Refusing to meet the inquisitive mare’s eyes, Derpy rambled on nervously. “W-Well I was flying to deliver it to you and I-I kind of… b-b-broke it.” She looked like Fluttershy would in this situation, expecting some harsh backlash from the reveal, but Twilight instead did the exact opposite of what was expected.

“Oh. It’s okay, Derpy. It didn’t really matter anyway.” She would’ve cared earlier. She should’ve now really. But she didn’t. There were still dozens of questions flying through her head, like why Celestia wanted her to see it in the first place, and what it even did, but Derpy has become more important to her than anything else could ever be.

“R-Really?! Y-You’re not mad?!” Gradually, all the tension in her body faded away. She still had to make sure her stallionhood wouldn’t escape her sheath like it wanted to though, but that was getting easier as her arousal faded.

“It’s fine, really. Accidents happen, and I could never be mad at you.” It was a strange thing for her to say, but for Derpy, that was just another bizarre behaviour of hers to add to the nonexistent list.

A moment of comfortable silence passed, with both stuck in their heads, but that soon ended when the pudgy pony princess made her inner thoughts known.

“I wonder what it did though… Not that it’s your fault it happened!” Saving herself at the end there, Twilight didn’t notice Derpy not even hear it, her too focused on how she did have the answer for what her princess was wanting to know.

Sh-She at least deserves to know what it did… And she is royalty, i-it’s kind of my obligation to tell her anyway… Once again, Derpy didn’t want to reveal this, but at least she knew Princess Twilight wouldn’t blow up at her for this, her thinking it isn’t at all her fault. “I-I-I m-might know what it did, p-princess.” At least she had more confidence this time, though this would surely be an odder experience than her last confession.

“Really?! What did it do?!” Her entire posture straightened, the mare’s body nearly jumping out of it’s seat in interest. Clearly, some of the classic studious Twilight Sparkle is still in there, her mind not erased, but altered greatly so she could properly serve her stud.

But Derpy being put on the spot wasn’t helping her uneasiness. “W-Well…” She shuffled on the stool, partly because of her uncomfortability here, but mainly she was twisting her body to look at the pony already facing her. “I-It gave me a…” Twilight had to have noticed how she’d been sitting weirdly this whole time, but now it’s time to be honest and let her junk be known to the overly-friendly princess. She would still try and keep her cock sheathed though, it still wanting to escape.

After a final deep breath and Derpy looking away blushing, she parted her thighs, revealing what was in between, and for Twilight, as soon as she saw what was there, time froze as she took in the new information.

There were massive, heavy balls dangling there off the edge of the stool, underneath a large sheath that definitely hid something large inside. They were so big that they looked nearly ridiculous on her body, but at the same time, they fit so perfectly.

At that crucial moment, Twilight Sparkle had her second epiphany of the day, her purpose in life as clear as day. She would devote her entire life to bringing pleasure to her stud, and birthing as many foals as she required. Her entire point of existing is to worship her and her cock and balls, whether that means sucking, fucking, or literally anything that the mare she loves wants. Meanwhile the futa’s purpose is to bless all ponies with her heavenly balls and hung horsecock, gifting them with the wondrous things it can make them feel as well as with her foals too.

She’d pretty much had this revelation already, having somehow already known that Derpy wielded such incredible things between her legs, but now it became so much clearer, and Twilight acted before thinking, her not needing to.

Derpy didn’t know what to do, it felt as if she was flashing the princess and it felt impossibly wrong, but she had no choice and had no idea on what to expect from her. Maybe she would become something that the mare would experiment on and research? Either way, Derpy tried to ignore her to make this easier for herself, even while she was curious what Twilight was doing out of the corner of her eye. Wh-What is she doing though? It, um, k-kinda looks like she’s getting onto the floo-

Stopping herself, Derpy felt something happening to her balls, as if something was under them both. Instantly, her head snapped down, and she was met with Twilight’s half-lidded and intoxicated eyes.

SNIIIIIIIIIFF!

“Holy fuck, Derpy! You smell…” Letting her juices pour down onto her castle’s floor, Twilight went in for another whiff, craving more of the sweaty, delectable and pungent musk that the heavy balls on her face were giving her. Whilst Derpy remained on her stool, Princess Twilight was before her on the floor, cradling her testicles on her muzzle as she let her love for her stud grow even more. “You smell fantastic!” It was such a strong aroma that she had to moan the words out. She’d been lusting over Derpy before, but now…

Now the prestigious princess is going to make sure she becomes the first of her many mates, whether Derpy wants her to or not.

Having taken the little time it took to make up her mind about this, Twilight first needed to bring out what the mare was visibly trying to keep contained inside her sheath. For a while now she’s seen that Derpy’s been tense, but with her now down here, the cute mare’s face was scrunched up as she tried desperately to not let her length escape. Twilight was a smart mare though, and like always, she had a plan.

With her baffled as to what exactly was happening -Twilight making much more direct advances on her now- Derpy was having to use everything she had to not let her dick rocket out into the open. Of course she’s unwillingly aroused a ton by the sight of the purple-furred face shoved into her scrotum, but through gritted teeth, she resisted. “P-P-Princess, w-what are you- AHN!” With bedroom eyes glancing up at her in a sultry way, Twilight had smirked, right before she took a long, sensual lick up one of her bollocks.

Wetting the fur, Twi’ got a good taste of the sweat there, right before she saw her plan succeed.

Derpy had no clue whether it would be best to keep trying or to stop, but either way she gave in to what her body demanded, and her pent-up schlong shot out of her. Firstly it was flaccid, the behemoth all pushed out in a second and lying lewdly on the parts of Twilight’s face that wasn’t under the balls, but soon after, blood rushed to it, and it stood firmly at her groin, rock-hard and ready for fucking.

Twilight almost couldn’t believe it, the size was preposterous despite matching the balls’. But of course the perfect stud would have the perfect huge fucking horsecock to love!

At that moment, she was only milliseconds away from pouncing on her, knocking Derpy off the stool, shoving her to the floor and plunging that juicy meat right into her wet needy snatch. But she decided not to. It would be fantastic, heavenly, the best thing she’d ever felt by far, but it would also be a waste.

So, she has the awestruck Derpy and her unflawed dong at her disposal now. Why don’t have a little fun first as well? She had read somewhere that foreplay could be the best part of sex, she didn’t believe it of course, not when this monster cock held so much promise, but she felt it’d be a shame not to get to try it herself.

Zoning out a little, not tearing her eyes from the veiny, throbbing horsecock towering over her, she had an idea, a tiny metaphorical lightbulb shining over her head for a moment as she planned out her fantasy in a split second. But after that, she was ready.

This is gonna be great! Derpy was still sat up, so instead of jumping on her, Twilight stood up on her hooves even though she enjoyed her time nestled under the nuts. Biting down on her lip in excitement, she moved her hoof past the pegasus’s erect and equally excited junk, placing it on her chest and gently pushing back.

Poof! “Gah!”

Not once in her life had Derpy ever been teleported before. It felt like she was falling for a split second, and so she screamed in shock, but then it stopped an instant later, and her cushiony ass landed on something bouncy.

Scanning her surroundings, she was on top of a large bed in what must’ve been in Twilight’s bedroom. I’m in a princess’s bedroom?!?! Leaning back, her hooves supported her body as she sat upright, her member twitching at the new information. There were so many questions on her mind, and she tried asking them. “P-Princess, what-“

But she was cut off, a hoof gingerly pressing against her lips to stop her. “Sh.” With a devious, seducing smirk, Twilight’s horn lit up, making her slide backwards on the bed until her back rest on some pillows, Derpy no longer needing to hold her body up. “I’ll be back in a sec’. Don’t let that thing disappear before I come back.” Glancing down at her erection briefly, Twilight suddenly looked back up and winked, before she herself disappeared in another poof of magic.

…WHAT’S GOING ON?! Everything was happening so quickly Derpy could barely keep up, and now the princess has disappeared off to Celestia knows where to do Celestia knows what? All she knows right now is that Twilight is really horny and that she’s REALLY into her all of a sudden. This also must be because of the potion, right? ‘C-Cause she’s been so… Derpy still doesn’t know how to feel about Princess Twilight being so lustful, and despite her dick’s very enthusiastic response, she was still hesitant about… well, everything.

Derpy spent about a minute longer waiting for her to return, not able to get the gorgeous princess’s body out of her head for all of it. She was pretty sure she’d heard a small poof come from the wardrobe sometime during, but she ignored it, still deliberating whether or not she did actually want her erection to go away.

Poof!

“I’m back!” Appearing on the bed before her, Twilight returned, with a couple things accompanying her. There was a big blackboard that showed up behind where Twi’ stood, but what Derpy’s horny mind latched onto first was the outfit she wore. There was a pair of glasses resting on her purple muzzle accentuating her intelligence, as well as a tight, white shirt over her chest, but what the one she’d dressed up for loved the most was the small skirt attempting and failing to hide her bouncy bootycheeks. It may have fit her when Twilight last wore the clothes, but ponies don’t wear clothes often, and her body had clearly outgrown these particular garments.

Somehow, the small size of said cosplay made Derpy appreciate it all more. Twilight had the whole ‘teacher’ aesthetic down to a tee, but when the skirt couldn’t even fully cover her cutie mark, her juicy rump stuck out more than if she’d worn nothing at all.

It had the desired effect over Derpy. Twilight wanted the hung mare to find her attractive, and now she had plenty of proof to show she did. “What d’ya think, Derpy? You like it?” Pointing her ass at her, Twilight lifted her tail, letting Derpy see how much wetter she was for her now.

With her jaw dropped again, the grey mare was speechless, but at least she nodded slowly, giving an answer this time.

“Good! But I’m not here to be ogled (mostly). I’m hear to teach.” Twilight had dreamt this kind of roleplay before a couple of times to get off to, so getting to live this was a literal dream come true for her. “Now, if I’m correct you only got that… beast earlier today, ‘cause the potion changed you then, permanently.”

She knew of few potions like that, however, if Celestia said it was as important as she did, then it’s effects are definitely everlasting.

“Buuuut…” Boldly, she took a step closer to Derpy, who’s still leaning back with her prick pointed up and needy. “If this is new for you…” Another step closer. “Then that means you probably know very little about a stallion’s stuff…” Taking a final step, she was casting a large shadow on the submissive mare while she looked down at her. “Which means you need to be taught…” Her body dropping down, Twilight’s serious expression turned to one of joy as she pressed the side of her face against the hot skin of Derpy’s meat. “And luckily for you I’m an expert on the subject!”

She may have read a few or a few dozen books on stallions, but all that ‘research’ led her here, and now she could properly teach Derpy how much pleasure a knowledgeable mare like her could give to her, even if she didn’t want her to. “Y-You don’t have t- AAHHNN!“

When she spoke, Twilight’s horn once again lit up, and a purple aura appeared around the girthy shaft of her penis, but with her dick at it’s mercy, the magic squeezed down on her meat, hard, sending a painful pleasure unlike anything she’d ever felt before through her. With her face turning stern, the ‘teacher’ stood back up, looking down on Derpy dominantly. “Only speak when you’re spoken to, student. Don’t talk back to me. I am the one teaching you here, so don’t disobey me or I’ll punish you more than that. Understand?”

Not sure how to respond, Derpy stayed there, not moving and just staring blankly back at the mare who was controlling her, speechless. It’s needless to say, both are horny out of their minds. Twilight finally gets to live out her perfect fantasy with the pony of her dreams, meanwhile Derpy is getting kinkily dominated, something almost unimaginable happening to her whilst the member she now has floods her body with arousal she never asked for.

“Do. You. Understand?” Again, tightness crushed her dick, and another wave of mind-melting pleasure with the sharp sting of pain both shot through her.

Derpy could feel the effects of lust changing her, and though she could fight off the part of her very curious to find out what Twilight’s ‘punishment’ would be, she gave in anyway, and she nodded frantically and spoke up to make the magic stop. “Y-Yes! I understand!”

“You understand Miss Sparkle. Say it.” It was no request, it was a command from dom to sub.

“I-I understand Miss Sparkle! I won’t disobey you!” Derpy had no choice but to submit, she had no power here, and her throbbing fifth leg was definitely impacting her decision making. Meanwhile, Twilight’s face was incredibly good at hiding how much arousal her student’s submission gave her, but the audible juices pouring down onto the sheets at her words gave it away.

“Good.” Despite her words seeming final, the magic remained surrounding the beast between her legs. Twilight never acknowledged it though, instead she turned around and spied a small wooden stick that she’d brought in with her, her magic grabbing that too. “Now pay attention, this is important.” The stick sped off to the blackboard that had been brought closer to them both, and it pointed to a very detailed diagram pre-drawn by the teacher. “Do you recognise this?”

Without hesitation and never stopping feeling her ~~princess’s~~ teacher’s constant grasp on her, Derpy nodded instantly, because she did recognise the image drawn in chalk. It was her newly-aquired junk, only this let her see inside it too. Twilight had even managed to capture the daunting size of it as well.

“Good. This thing here, is the product of you messing up, and breaking something sent by Princess Celestia herself.” For this, the pony was obviously manufacturing her pissed-off attitude. She’d made how little she cared Derpy had broke it clear, but now she had the opportunity to give her and her fantastic stallionhood a strict lesson, one neither would ever forget, and she couldn’t resist. “Now be honest with me Derpy, that package was meant to arrive much earlier today, have you already had some fun with… that?”

Uh oh. She had no clue how to answer, none. The postmare could be honest, and admit that she’d already gotten very used to the colossal cock and balls she wasn’t even supposed to get. Or she could lie, and maybe give Twilight the answer she wants, avoiding more of the agonising yet pleasurable punishment. After the seconds of her hectic decision-making, Derpy reluctantly opted for honesty, and she shamefully nodded and admitted the carnal acts that she’d indulged in.

And it was the right answer.

Immediately after, her body braced itself, preparing for the dreaded yet desired crushing sure to come, but with Derpy holding her eyes closed, she got the exact opposite of what she was expecting.

“Hm? What was that?” Opening her eyes slowly, the grey mare saw Miss Sparkle smiling down on her devilishly. Instantly, Derpy knew what she wanted, and mindlessly followed right after.

“I-I m-masturbated earlier in my house to… t-to the thought of the village’s mares… i-i-including you…”

The words were mumbled, but Twilight heard them as clear as day. Elation filled her and her heart jumped for joy at the knowledge that her Derpy, the one and only perfect Derpy Hooves, had jacked-off with her in mind. But still, she kept her composure and ignored how her sopping pussy was somehow feeling even more needy for this mare. “G-Go-“ Raising a hoof, she cleared her throat. “Good. Th-Thank you for your honesty.”

Internally, Derpy breathed a sigh of relief, but right after, a massive thud made the bed shake. Twilight had dropped back down to her dick, and was grinning madly with it in front of her muzzle.

“Oh, and by the way, I already knew you did.” Before she could wonder how, the intelligent pony answered. “You’ve not even had this thing for half a day, and already it’s like this. It’s so… so sweaty and…” The magic dispersed, and Twilight moved her head the last few inches to shove her nose against the juicy shaft. Sniiiiiiiiifff! “It’s soooo musky!” She was caught in a trance, staring with love at the pungent horsecock before her, something that should’ve made Derpy at least anticipate her next move.

“AAAAAAHHHN!” Hitting her all at once, the most pleasure she’d ever felt hit her as Miss Sparkle took one long and indulgent lick all the way up her shaft. It took a while, and it was torture, her pleasure being toyed with like that, but Derpy couldn’t deny one thing above all: she was starting to want her teacher to give her more.

About a minute passed, the princess smiling so deliriously that Derpy could’ve sworn she saw hearts in her eyes. But after that, Twilight finally managed to break herself out of her spell, and she came back to reality. C’mon Twi’, just a little more and then you have have that… that massive, fat, tasty horsecock impregnating you… Once again, mare juices dripped back onto the bed, but they were forgotten about as the alicorn stood up and backed off. She pretended that that never happened, and looked her student in the eyes through her glasses as she reverted back to her teacher persona. “Anyway, l-like I was saying… As I am your teacher, I want to teach you what I can, and I’m going to teach you plenty, mostly about the best ways to pleasure a stallion. Are you okay with that?”

A subtle seductive side-glance was given to Derpy as the teacher turned to the board, and instantly she understood just what kind of ‘learning’ she’d get to be involved in. Her rational mind was screaming at her, telling her that this was wrong, that Twilight shouldn’t be acting like this and that she should be helping her somehow. But Derpy’s horny body was in control, and that was okay, because both mares were unbelievably aroused, so she couldn’t stop herself before she gave in to her urges yet again and submitted. “Y-Yes, Miss Sparkle.”

They’re both in a kinky world of their own now, so the teacher got to teaching, with Derpy never once trying stop her (not that she could anyway). “Now, as you may know, the penis can feel amazing to whoever has it, but it can also feel… a-amazing to the mares it’s given to though. You’ve only experienced a fraction of it, and I’m making it my obligation to help you expand your mind, and to open it up to new possibilities. So far, you’ve not really felt much else on it besides your hooves, right?” That and her face and tongue a second ago. “But I’m sure you already know that other ‘tools’ can feel much better. Allow me to demonstrate.”

With a chance to be face-to-face with Derpy’s dick yet again, Twi’ jumped at the chance, and she was back on her front where she’d been only a minute ago. She could’ve explained using the board, but for some reason she was preferring to use more… ‘interactive’ methods.

“To pleasure such a… a massive horsecock such as this one, mares might use other alternatives to get their beloveds off. Stallions can struggle to do it themselves and earth ponies and pegasi don’t have magic to masturbate with, so other things can be used that feel much better than just hooves. One of most commonly used is the tongue.” Before she’d even finished her sentence, eagerly, Twilight pushed her head forward again, and stuck her tongue out to lick the shaft once more. But she didn’t stop this time, and she let herself explore all around it, to her heart’s content.

“AAAHHN! Th-That feels- Ngh! S-So good!” Her teacher was right, hooves couldn’t compare to this. As well as the waves of pleasure crashing through her body, she also got front-row seats to watch too, getting the exclusive opportunity to watch the esteemed Twilight Sparkle lewdly slobbering over her cock. But none of the cock-worship made her more dominant, Derpy knows full well who’s in control here, and she knows that Twilight wouldn’t let her escape even if she wanted to, so she’d accepted her place already.

It was an experience like no other. Travelling to every last inch of her hot skin, Twilight’s tongue sent powerful bursts of pleasure through her, and both enjoyed it immensely. Smoothly, the wet, pink muscle was gliding around, and it wouldn’t stop moving up and down the shaft, Derpy’s high-pitched moans becoming even louder as she travelled over her thick medial ring.

And then, it happened. Derpy didn’t cum, not yet, but after she kept writhing under her teacher’s control, the mare did feel something familiar rise up through her, a large dollop of gooey white pre-cum pushing out of her dick’s tip.

Twilight didn’t notice it at first, not with her closed eyes, but when she finally decided she was done, moving away and wanting to move onto something more, she spied the blob there, enticing her to no end. She wanted it, and she was going to get it. With a tiny glance up at her ~~toy’s~~ student’s blushing and waiting face, her eyes locked back onto her target, and Twilight smirked in a way both adorable and dominating (her outfit only accentuating that). “I don’t need to explain that some parts of a stallion’s length can feel better than others. Watch and learn.”

Upon finishing, she dove forward and needily lapped up the escaped semen, letting the lewd and addicting flavour explode on her taste buds. Afterwards though, Miss Sparkle wanted to help Derpy learn just how much better the tongue could feel on the head, and so a thorough demonstration was in order.

Swirling and slurping, Twilight’s tongue french-kissed Derpy’s tip with passion. And by the time she was done and Derpy was left needing more, not the tiniest bit of pre was left.

Despite having resisted earlier, the pegasus had given up long ago and was wanting to beg her dom to help her, but she daren’t. The last thing she wanted was the princess making her even hornier only for no payoff.

Derpy wasn’t the only one feeling a desperate need for release though. Gushing out of her, Twilight’s hot juices were spreading all over her bed as the needy heat of her burning marehood broke her restraint. But this can’t be over so soon! The climax of their fun would surely be the best part, but then that would be it! Racking her mind, she quickly found an answer that let both their burning desires be satisfied… for now. Now she just needed some teacher-related excuse. “Derp- Umm… S-Student. Sometimes, mares don’t just- Um… M-Mares want something back from their stallion when they- Err…”

Their roleplay was so fun, and she was loving it, but her aching pussy’s need was so much stronger. So Twilight gave up her teacher role. Maybe she could bring it back the next time she inevitably hunts Derpy down and beds her, but until then…

Snapping out of character and grunting out of sexual frustration, Princess Twilight Sparkle stood back up on her shaky hooves while her winking snatch glistened. The teacher’s gone, now there’s just an insanely horny pony who’d get her submissive fucktoy to worship her body so she could do the same back.

Without a word and with a determined look on her face, Twilight’s horn glowed, and the familiar magical aura surrounded Derpy’s whole body this time. It yanked her from the pillows she’d been lying on, and she screamed briefly as she was moved from a sat up position to lying on her back. Confusion filled the mare as she couldn’t guess where this was going, but then Twilight walked over her body, and her dick twitched in anticipation anyway.

Panting breathily as she stood above her, Twilight wasted no time. In a single swift movement, she spun around, and her juicy ass was placed over where Derpy’s face was. Even before the alicorn’s tail was flagged, juices dripped down onto grey fur, representing the need practically gushing out of Twilight. And then, with her knowing Derpy’s eyes were trained on her barely covered ass, the princess rose her tail high like a slut and showed how desperate she was straight to her face.

Derpy’s dong didn’t just twitch, it throbbed as she instinctively bucked it up in some measly attempt to get pleasure. But how could she not? In between two fat purple asscheeks was the literally dripping wet pussy of Twilight, there for her to ogle and marvel at for the second time today, only this time it was so needy that she could feel its wetness falling onto her, smell the enticing stench of horny princess, and let her dick show how much she wanted her.

Twi’s butt looked especially huge from this angle. Partly because it is huge, but the spectacle from down below her was also helped by the pathetic attempt at a skirt not surrounding the jiggly masses and covering nothing. The teacher/student act was gone, but the clothes were still on Twilight, and Derpy wished they’d never come off.

For painful seconds, Twilight let herself be ogled by her stud, her stallion that she controlled, until, between laboured breaths, she stated what was going to happen. “Derpy, I’m gonna sit on your face, and you’re gonna devour my pussy. Got it?”

“Mhm.” A meek nod and a hum was all Twilight got back. She wanted to punish her again, commanding her and controlling every little thing she said, but her burning-up body was already pissed that she wasn’t plunging that rod deep inside her cunt, so she’d have to settle for settle for satiating her needs. At least her mare still knew who was in charge.

Instantly, the weight was taken from her legs, and heavily, her ass was dropped and planted onto Derpy’s face.

For Derpy, the experience was amazing, unreal, something she’d have dreamed about whilst jerking off. And now she’s here, getting her face sat on by the fat-assed Twilight Sparkle. The chubby cheeks had surrounded her face, trapping her between them, and her muzzle was practically inside Twilight’s hot, wet snatch. And it wasn’t that she could smell her intoxicating arousal, but what she loved most was how it was all she could smell. Derpy could even feel how how it was as the puffy pussy’s juices spread all over her gleeful face.

But she wasn’t allowed to basque in the moment. “I said eat me out!” Shoving her hole further down Derpy’s muzzle, Twilight’s magic flared up, without hesitation gripping down on her stud’s meat to get her to do as she said.

Undoubtedly, the sensations shooting through the futa-mare’s body were more than encouraging (plus she’d been wanting to taste the princess anyway). Derpy opened her mouth, slightly widening Twilight’s entrance as her tongue shot out into her, and, following the commands given, she did her best to please the mare on top of her. It was a win-win situation: Twilight got rewarded with the pleasure she’d been needing, and in return, Derpy got more and more of her tasty juices to lap up like a thirsty pup.

“Ngh! Yes! FINALLY!” Both of the ponies’ wings were firmly erect at their sides, an archaic sign of pegasus and alicorn arousal. But neither noticed, not with one mare’s eyes covered up by a puffy ponut and the other’s rolling into the back of her head from the pleasure she’d been waiting for for too long. “Don’t you dare stop, you stud! Or I’ll not let you blow that fat load of yours for years to come!” Letting her demanding body control her, Twilight didn’t even notice she’d started grinding on Derpy’s face, but she didn’t care in the slightest, not when it finally eased the undying itch inside her.

And at the same time, underneath, Derpy Hooves was having the time of her life! How could she not be? Princess Twilight Sparkle herself was using her like a sex toy, and she was getting to slurp up every drop she could of her lewd royal essence. Sure her dick was getting nowhere near the amount of stimulation it demanded, but somehow that made it so much hotter. She’d only get to be pleasured when the mare in control, Twilight, wanted her to. It was perfect.

Down here, being used yet worshiped at the same time, Derpy had given it all up: her dignity, her morality, she’d even lost her vagina today! But knowing it all led here, to her being smothered by flank furiously and her dick getting toyed with like it was, Derpy knew it was all worth it. (Plus, if that little stimulation her cock had gotten already was really as mind-blowing as it had been, then she could only imagine how incredible actual sex would be).

“Ah! Yes! Get your tongue in deeper! Ngh! Right there! RIGHT THERE! HNGH!” And on top, Twilight was also having the time of her life. She never thought she’d be a good dom, she’d always wanted to be the sub in her past fantasies, but as soon as her eyes had laid on Derpy she knew what her true calling was. So she’s here, shoving her true love’s muzzle as deep into her as she can while rocking her hips back and forth repeatedly, not giving either of them a chance to rest. And quickly, very quickly, Twilight Sparkle was getting closer to cumming, the juices pouring out of her not the only sign of her impending climax. “FUCK! KEEP DOING THAT, DERPY! I’M G-GONNA!”

Despite the warning, Derpy had no way to prepare for what was to come. She’d heard the joyous screaming, even whilst her face was stuck in the princess’s hot, wet, tight and needy snatch, but when she’d cried out orgasming, Twilight slammed her ass backwards the hardest she could, right before her pussy pet loose all over her former students’ face.

“NGAAHH!” Derpy’s muzzle was already covered in the stuff, but that didn’t make a difference as the howling alicorn sprayed her juices directly onto her face. With her tongue lulling out, Twilight’s eyes rolled back. She was making a slutty face and she knew it, but not even the tiniest part of her cared, she was finally getting some release, and that was what mattered.

Derpy didn’t get to cum yet, but that didn’t mean some part of her didn’t enjoy being showered in Twilight’s tasty arousal.

“Ahhhhh!” With a huge grin on her after she lost her ahegao face, Princess Twilight tried standing, she tried removing her sopping wet tush from resting atop Derpy’s head, but her weak legs only made her fat ass collapse back down onto her. “That was…” She’d masturbated before, but none of that could hope to compare to the climax she’d gotten to experience. “…Amazing!” It was the most powerful, the most euphoric, and the most mind-breaking orgasm ever! Nothing had ever made her body feel nearly as much pleasure as her stud just had…

But something was still missing. Throughout all of her fun, something ached within Twilight, as if the heaps of pleasure weren’t enough and her body demanded something else… Something…

Something girthy and juicy and fucking massive with gigantic, cum-filled balls attached to the bottom of it! How could she be so stupid? Of course just her stud’s tongue couldn’t please her. She could only be finished when her mare’s huge fucking horsecock was buried deep inside her, shooting loads of hot, fertile cum directly into her womb!

Hungrily, Twilight’s eyes snapped down to the throbbing tool before her. In an instant, her legs gained strength and her body was suddenly full of energy. It was no coincidence either that underneath, Derpy got to feel a gush of fresh arousal splurt out from Twilight’s unendingly wet marehood.

She rose. Like a mare possessed by her lust, Twilight removed her plot from its resting place with a noisy squelch, and the pegasus was relieved of her job as a royal seat. “D-Derpy…” In a single smooth motion, the princess spun her bouncy body around whilst still over her stud, looking down to stare her hung yet submissive futa-mare in the eye. “I-I’m also gonna teach you a l-lesson about how a stallion and a mare can pleasure each other in a much more efficient way than just sucking, or-or licking…”

At the word ‘lesson’, Derpy suddenly remembered the arousing outfit adorned on Twilight’s bountiful body. Checking, she couldn’t see past the skirt, it blocked her view of her own dick’s head, but she still felt it when the Princess of Friendship placed it against her burning entrance. Was she really going to let the horny Princess of Friendship take her virginity? Derpy was horny out of her mind, yet still the slightest semblance of sense persisted. “B-But-“

“Sh.” Already juices tauntingly trickled down the whole length of Derpy’s shaft, and she could feel them, but she could also feel Twilight’s hoof at her mouth shutting her up. With the tiniest glow of the alicorn’s horn, a poof occured, all of Twi’s arousing outfit disappearing and her returning to complete nudity as she kept up the dominating eye contact. “Right now, we’re gonna fuck like animals, and then you’re gonna empty a fat load in me and knock me up, got it?”

Even if she’d nodded Derpy doubted it would have made a difference, instead she just kept lying there, only able to get a few meek words out. “I-I’m a virgin…”

Positioning herself better, getting Derpy’s entire tip to press against her hot hole, Twilight only gave a quick response before biting her lip and getting back to the task at hoof. “Good. Me too.” And on that, she angled herself properly, before pushing back and easing the HUGE horsecock into her. “Hngh!” If not for the absurd amount of lube her purple pussy offered, it definitely wouldn’t have fit, so when it did slide in slowly, the thick, pink flared tip got to stretching out Twilight’s tight virgin insides. “AHHN! HOLY FFFFFUCK!” Already, this was infinitely better than being eaten out. Derpy’s wet tongue digging into her was nice and all, but this… Nothing could ever hope to compare to the perfect, unflawed meat that the sexy stud wielded between her legs!

Pushing past the head, Twilight needed more in her, and she wouldn’t stop until she’d gotten every last inch deep inside her, even if she had to cram it all in. So she kept descending, letting her body move down the tall pole and struggling to accommodate it as the pure meatiness widened her inner walls to unimaginable lengths, her body being given unimaginable pleasure in response as her face showed her love for Derpy’s horsecock and only Derpy’s horsecock.

Meanwhile, for the ‘gifted’ mare herself, it was just as unfathomably wonderful and just as stimulating. Either Princess Twilight was way tighter than she was expecting, or her girth was just as fat as she’d thought it was, or both. Either way though, as Derpy’s fuckstick delved deeper, getting more and more of Twi’s hot, wet insides squishing down on her dick, there was no place she’d rather be than underneath her. “Ah! P-Princess! You’re so-! Ngah! Sweet Celestia! This is so good!”

At the mare’s beautiful moans, Twilight’s eyes hazily moved from her skull down to Derpy. Holy shit, she’s so cute when she moans! Having wedged half of the schlong into her needy snatch (it still needing and getting more of it) the former teacher licked her lips before her head dove forward, taking advantage of the mare underneath’s mouth being open already. In an instant she made their lips meet, and Princess Twilight didn’t waste a second before she shot her tongue inside Derpy’s mouth.

Nothing else mattered around the pair, not as they moaned into each other’s mouths. For them, all that was important was that Twilight Sparkle’s body remained fully on top of Derpy Hooves’, her keeping their mouths and genitals locked together as they got ready to rut senselessly.

With their tongues swirling around each others, Derpys not trying to keep up and being dominated easily by the more aggressive one, Twilight’s insatiable cunt finally reached something she’d been waiting for: the medial ring. Just the two thirds of horsecock in her that she’d already had the pleasure of feeling inside her were already way above the average size or a stallion, but she still needed it all, and wouldn’t stop until she was full, even with the cock’s protrusion making it a bit more difficult.

In seconds, a plan formed in her lust-riddled mind, and Twilight moved her big butt upwards instead of trying to get it down further past the medial ring. Unsheathing Derpy from her, with every juicy inch leaving her, she felt empty inside and was more than tempted to go back to working her way down, but instead Twilight let her ass rise. Of course, blasts of pleasure were being sent through her, the euphoria of Derpy’s dick scraping on her insides making her body weak, but still she prevailed, pulling up until the only thing left in her was the flared head.

Hotly, Twilight removed her mouth from her studs. Between them, a few strands of shared saliva still connected them, but their minds were elsewhere, because behind Twi’, her ready rump was just a sharp movement away from plunging her back down Derpy, giving them both what they needed again.

However, only a fraction of a kinky want was still prevalent in the dominant mare’s mind, and it was wanting some encouragement to let her continue. So Twilight leaned closer, passing by the grey muzzle and placing her mouth at one of the other horse’s ears. And then her quivering, begging body let her utter one word seductively: “Beg.”

Derpy had lost all restraint long ago, so when Twilight was this close to satiating her throbbing need and letting them finally fuck, she would’ve done pretty much anything for her. Anything, including begging. “P-Please Princess! I need it so much! Let me fuck you, please! I’ll do anything! I’ll be a good filly, or your student, or your stud! Just please! Shove my needy dick in your sopping pussy! I need- MMMMM!” Begging as if her life depended on it, Derpy never saw how much she was riling up Twilight, so when their mouths connected again forcefully it was a shock, but not as big a shock as what was to come.

Prepping her body, the infinitely aroused princess steadied her back legs with her front resting on Derpy’s chest, her tongue assaulting her sub’s mouth. And then, when ready, she let all strength leave her hind legs.

In a single motion, Twilight’s ass dropped down, and her marehood consumed the entirety of the behemoth of a horsecock. One hot slap sounded as big purple buttcheeks met chubby grey thighs, and through the pair’s bodies, pure bliss was spread. “AAAAAAAAAHHHHHNN!” Saliva dripped down from their tongues that had untangled, and now hung from their mouths as they howled in pleasure. And of course, both pairs of eyes rolled back, the pleasure being far too much for their brains to register.

For Derpy, the euphoria was so much better than she was expecting. Fully sheathed in Twilight, she felt every hot, squishy and delightfully wet inch of pony snatch gripping down on her entire horsecock. The pink walls were so tight on her it probably should’ve hurt, but instead the vice-like grip just sent incomprehensible pleasure through her. So she could only moan out, her mind too busy failing to comprehend how lucky she was and how amazing Twilight’s cunt felt instead of realising she and a princess had both taken each other’s virginities.

Unlike Derpy’s experience though, for Twilight, it was exactly what she expected it to be: perfect. She could feel her insides rearrange to fit the monster cock, but that wasn’t all, she felt Derpy’s tip stretching her womb further than it should’ve ever been stretched, she felt Derpy’s veins throbbing inside of her as they kept the delicious dong hard, but most importantly, she felt the teeniest tiniest shred of pain, it having come from her hymen being destroyed, it not having the slightest chance of existing with any giant horsecock inside of her (nevermind this one).

Between both though, one similarity stood above the rest: both needed more!

Wordlessly, yet not at all silently, Twilight looked back at her butt as she put in the effort to raise it. And of course, the two cheeks dramatically rose in tandem. Up and up they went, bringing pleasure to both as the friction against Princess Twilight’s stretching pussy walls made them voice their delight.

And soon, for the second time, only the head was left in. With the two panting, Twilight didn’t waste a moment, and immediately got to slamming her hefty ass back down.

Whap!

Her pudgy fur-covered flesh met Derpys again as the meat was barely sheathed within her, prying open every bit of her and stuffing every nook and cranny full, but once more, she wouldn’t wait longer than a second to take more. Again, Twilight moved her fat flank up slowly, and slammed it down heavily, not holding in the moan that burst from her when her womb got crushed for the second time. But she didn’t let the mind-numbing pleasure stop her, no, instead she just did it again, and again, and again, using her body to pleasure her stud and gaining plenty of pleasure in return.

In awe, Derpy watched the cycle repeat itself time and time again. The intimate pace she didn’t mind, every fat slap feeling too good for her to care, but even if she did, it wouldn’t have mattered as Twilight started speeding up, her pussy loosening a little to welcome its meaty intruder.

“ANGH! Holy shit! Your cock is SO FUCKING GOOD!” It wasn’t that Twilight would get addicted to it, it was that she already was. With her front legs holding Derpy, she couldn’t stop herself from getting more even if she’d wanted to, so mindlessly she let her round rump bounce up and down on her lover’s horsecock, enveloping it completely and letting it use her body for pleasure as her juicy butt jiggled.

And it was safe to say that Derpy was loving what was being done to her. Instead of moaning and shouting out how much she was enjoying their equine mating, Derpy was just moaning, letting out constant high-pitched, girly and very feminine moans despite the huge cock and balls she has that another mare is driving into her. But as their hips kept colliding and heaps of pleasure were forced onto her, she felt she had to speak up, a sensation she knew all too well rising up through her dong. “AHN! P-Princess! I’m- NGAH! I-I’m gonna c-cum!”

In reality, Derpy should’ve expected that the words would only encourage her further. As if the blissful feeling consuming her mind and body wasn’t enough, Twilight getting the promise the stud knocking her up with her foals and fillies was just more fuel to the undying fire between her legs. So frantically, she gave her all to pleasure the perfect dick with her insides, both benefitting from the rapid speed and furious need for stallion cum. “YES! CUM IN ME! KNOCK ME UP AND MAKE ME A MOM!” The bed was being abused under their repeatedly impacting bodies, but neither cared. “EMPTY THOSE FAT FUCKING BALLS INSIDE OF ME AND FLOOD MY WOMB! PUMP ME FULL OF YOUR CHILDREN AND IMPREGNATE YOUR PRINCESS!” Screaming at the top of her lungs in a chaotic lustful delirium, Twilight had lost the plot, and all she could focus on was her stud and the needed prospect of getting pregnant from said stud’s surely massive loads.

“AHN! I’M- I’M GONNA-” Bucking up into the massive ass slamming down on her groin over and over, Derpy Hooves felt her spunk climactically rise through her, until finally, it happened.

“YYYYEEEEEEEEESSSSSSSS!” Twilight’s wings shot up and her body held Derpys closer as the futa-mare ejaculated, setting off her own mind-breaking orgasm.

But Twilight wasn’t the only one going through life-changing experiences…

As the princess stopped her rampant hip movements, choosing to bury the huge horsecock as deep in her as it could go, Derpy felt the dam break, and an orgasm unlike any other hit her defenceless body. But that wasn’t all she felt. Unable to stop it and not wanting to, Derpy felt her splooge move up from her balls. It travelled quickly, rising through her dick, and then, with her tip pushing against Twilight’s waiting womb, all of the mare’s gooey spunk splurted from the tip, the sheer quantity of it filling up Twilight’s insides in seconds.

“HNGHH!” In an instant, Derpy’s thick, white and fertile cum was being dumped into the princess, and she let herself unload every drop of it inside of her. Lewdly, it spread to every inch of Twilight’s womb, Derpy’s impregnating spunk filling it to the brim and unloading all of her balls’ contents. But of course, there was too much for Sparkle’s body to contain, her bloating belly only able to hold so much hot stallion jizz within her. So out it came, rushing out of her entrance and drooling down onto the grey mare’s furry hips.

For about a minute, the two lied there together, no sound besides the pulsing of a bucketload of cum emptying out of a mare, and no movement except the clenching of testicles and both ponies panting.

But afterwards, when the orgasmic eruption finally ended, Twilight lugged her weighty ass up off the pole impaling her cunt, letting every single slick bit of it exit her patiently. Upon eventually reaching the top, Derpy’s meat was unsheathed, and instantly, an explosion of cum spurting out of Twi. All the cum kept in her could now escape, and it did, messily, all over her bedsheets, before she let her body collapse onto Derpy.

Thud!

Right after bobbing in the air from the impact on it’s owner’s body, the still erect horsecock found itself nestling between two plump, purple asscheeks, a couple wet and final splurts coming out to get rid of the last remnants of cum still in the breeder and not in the bred.

“…That… That was…” The sweaty and exhausted duo panted together, with Twilight resting atop Derpy and cum trickling out of her. Today had been tough for her, and unarguably tiring. She’d been running around for hours, panicking about what had happened to the parcel Celestia had sent to her, but now, she could rest, still not knowing exactly what was in there, but not caring. She had her stud, and that was what mattered. “That was amazing…”

Meanwhile, Derpy wasn’t really tired, and unlike her newest mate, she couldn’t feel her body wanting to sleep in the comfort of the bed. Akin to the princess’s, her day had been very emotionally and physically taxing, but she wasn’t drifting off even a little. And immediately she deduced what the problem was… her dick.

Despite having cum, a lot, it still stood firm. Instead of wanting to relax after cumming, Derpy and her needy horsecock felt as ready as ever, almost as if she could go for another round… or ten, with her balls already preparing for her next massive ejaculation.

Either way though, it seemed to be aware that she was done for the night, even while still nestled between buttocks. So over time, she got to feel it soften and meekly return back into her sheath.

On top of her, not forgotten about, Twilight yawned before sighing dreamily. “I can’t wait ‘til next time we do this, which will be soon by the way…” Peering to the side, she spotted the teacher outfit far away on the floor to where she’d teleported it. Her mood didn’t dull at the sight, but still, she regretted not being able to hold herself back enough to keep up the fun roleplay she’d started. But that didn’t matter! “Oh, and I’m absolutely gonna bring back ‘Miss Sparkle’ at some point, let her give you a much more ‘thorough’ lesson next time.” It wasn’t a threat, it was a promise. And the promise sent a wave of both giddiness and panic through Derpy, her not knowing yet how to feel about it.

Soon though, sleep took over the pregnant princess, and her eyes soon closed peacefully with a huge smile on her face as sleep claimed her, but not before her horn quickly shot off one last spell to teleport the bed covers on top of them.

And despite not being as tired, that didn’t mean it wasn’t late for Derpy Hooves. She’d also had a hell of a day, so, having a princess snuggled up to her, she too let herself drift off in bed with Twilight, her not having a clue what to expect next, and her being even more oblivious to just how hot her life was going to be getting.

Author's Note

2: Twilight Sparkle

2005179
By Aer0 Zer0

By the way, a stud is a stallion kept especially for breeding, and in this story it’s basically going to be the reverse of what a broodmare is, in that whoever sees Derpy can’t help but need to pleasure her and be mated and impregnated by her mega horsecock.

Alright, stuff in my life’s going to get hectic so I wouldn’t expect too much (if anything) from me in terms of fics and/or chapters releasing. (And yes, I am aware that I dragged this chapter on a bit).