“So this is Sugarcube Corner, then?”

“Yupparoony!” Pinkie Pie bounced through the doorway, and just remembered in time to hold the door open long enough to let Twilight Sparkle in after her. It was a tough fit with her wings, but she managed to fold them behind her as she walked through. “But you’ve been here before, Twilight, remember? This is where we were meeting when Rarity came up with the idea for our big cafeteria musical number!”

“Oh, that’s right.” Twilight smiled vaguely and sat down in one of the booths. Pinkie wondered for a moment how clean it was, but guessed they were probably all equally clean or unclean, and there was nothing to be done about that. “I was a little preoccupied at the time. It’s still strange, though,” Twilight added. “For one, this place is a diner. Back in Ponyville, the Sugarcube Corner that you live in is a giant bakery.”

Pinkie’s eyes opened wide and she tried to envision it. “Oh wow! I’ve always wanted to work in a bakery! We do make a few pastries and things here, but it’s not really the main event. And you know, living in one sounds even better. Ponyville must be amazing.”

Twilight laughed. “It is, Pinkie Pie! You could come visit, you know, now that I’ve got the mirror to stay open. I bet the rea—the other Pinkie Pie would be extremely excited to meet you.”

Pinkie selectively ignored part of Twilight’s comments, and instead sat down opposite her in the booth, resting her legs comfortably on top of the table. She remembered to cross her legs just in time—she hadn’t had time to acquire a replacement pair of panties just yet, and even though Twilight was really a pony on the inside, she’d still probably have found that pretty weird.

“That sounds spiffy!” she said. “But I thought you and Sunset said the mirror only opened every thirty moons, and only for a few days. How’d you change that?”

“I explained all that last night!” Twilight looked put-out. “Weren’t you listening?”

“Uh…” Pinkie thought about it. She had witnessed Fluttershy’s knockers last night, in glorious loving detail. Sure, Rarity had eventually covered her up with her sweater, after it had become obvious that Fluttershy’s hands were not nearly sufficient, but even afterwards, concentrating on anything else had been very difficult. Fortunately she was notorious for not listening to things already, and presumably the pony version of her was just the same, so Twilight wouldn’t find that fact too suspicious. “Nope! But feel free to try again.”

Twilight groaned. “Well, there are actually a surprising number of ponies who have time—or, at least, hourglasses—as their special talent, and with their help, I was able to determine that the mirror cannot in fact determine where the moon is in its cycle or anything like that. So that ruled out my plans to have Princess Luna move the moon around Equestria really fast until the mirror opened up again. However, that also meant that the mirror has to keep track of time on its own, and the thirty-moon duration is all but coincidental; a certain amount of time has to pass for the mirror before it reopens, and that time in fact corresponds to the time of thirty moons, but the moon itself isn’t important. I have some past experience with time magic, and more to the point, while age spells are extremely difficult for unicorns, it turns out they’re quite possible for alicorns—that’s ponies with aspects of every single variety of pony—like myself. So I was able to set up a time field around the mirror to hyper-age for it the rest of the thirty-moon waiting period, and then dramatically slow down its aging after that, with the result that the mirror can now remain open essentially indefinitely, allowing me to study this world further at my leisure, while the mirror ‘thinks’ it’s only open for a few short days in total. Does that make sense?”

“Hmm… nope!” Pinkie wiggled her toes happily within her enormous boots—her boobies were still inexplicably tingling like they had been last night, but staying in constant motion helped—and watched as Twilight smacked a hand against her forehead. “I think you lost me at ‘special talents.’ But that ‘aliporn’ thing sounded interesting! Is that why you’ve got wings and a horn now?”

“Alicorn. But yes, that’s the reason!” Twilight drummed her fingers on the tabletop beside Pinkie’s boots, and Pinkie watched in interest. “As an alicorn princess, I contain representative traits of all kinds of pony… or at the moment, the equivalents of that in this world.” Her gaze dropped downwards for a second, though Pinkie didn’t know what she might be looking at down there. “I’ve gotten more experience with my new body and powers since the last time I was here, which I’m hypothesizing is why my effects on your bodies are more pronounced now.”

Pinkie spent a few seconds figuring out what Twilight was talking about, then beamed as it all clicked. “Oh, you mean how Rarity and Sunset have horns now!”

“Exactly!” Twilight smiled at her gratefully. “You know, you’re a much better listener than the pony you. You see, back in Equestria Rarity and Sunset Shimmer are both unicorn ponies, who are distinguished by having horns that can perform magic. Likewise, Fluttershy and Rainbow Dash are pegasus ponies, who have wings that they can use to fly.”

“Neat! What about me and Applejack?”

“Actually, I was hoping you could tell me!”

“Huh?”

Twilight leaned forward across the table, and her wings flapped excitedly as she did so. Pinkie wondered if that was a coincidence, or if wings were actually really expressive, and if so, what she’d be able to learn from watching Fluttershy and Rainbow Dash now that Twilight was around and magicking up their bodies. “You see,” said Twilight, “you and Applejack are what are called earth ponies in Equestria. You don’t have obvious physical characteristics like unicorn or pegasus ponies, but you do tend to be stronger, and you have a special connection to the earth that can be used in farming and the like. So Applejack is probably noticing that apples and/or apple trees really like her right now. But you—pony you—never exhibits traditional earth pony talents. She has her own set of strange abilities, so I’m very eager to see what my presence is doing to you, now that I’m affecting reality to the point that Rarity and Sunset Shimmer and I have horns too.”

Pinkie Pie frowned. Did she have any special powers? Well, she did know this one really great trick with a pineapple, but that was an old one, and Twilight was talking about stuff that had developed since she showed up. Oh, but there was something that counted for that! It wasn’t exactly a special ability, but maybe it was what Twilight was talking about anyway. If so, she could think of way worse places to suddenly develop magical powers!

“You know,” she said, as conversationally as possible, “part of me has been feeling kind of tingly since you showed up! Do you think that’s what you’re looking for?”

Twilight sat up straight, clearly very interested. “Sight unseen, Pinkie, yes! Obviously, though, I need more information. What part of you are you talking about?”

Pinkie did her best to sit up proudly. “My boobies!”

“Your what?”

“You know… my bazongas?” Twilight’s face was blank. “Hooters? Shooters? Physics tutors?” Still nothing. “Serving domes? Chi Omegas? Frost detectors?”

“Pinkie Pie, I truly don’t know what you’re trying to tell me.”

With an eye roll dramatic enough to beat out some of Rarity’s, Pinkie gave up and simply pulled her shirt up over her head. “These!” she said, flinging it aside and pointing at her torso.

“Ohh!” Twilight Sparkle showed a grateful smile. “You mean your breasts!”

“Well, yeah, sure, if you want to be all obvious about it.”

Pinkie Pie crossed her arms, pretending to look cross but really just trying to push her tiny titties out a little more. What was she even doing? Was she still so hopped up from her Fluttershy fantasies the night before that she was just ripping her top off at the drop of a hat? There was something patently ridiculous about the whole situation of sitting topless in a diner with a pony princess, especially when that pony princess was still fully dressed herself. It made her out to be the oddity in the room. And Pinkie didn’t exactly mind being an oddity, but you’d really think that when the other girl was actually a pony in disguise, she could get a bit of a break.

It was a perfectly good disguise, of course, Pinkie thought as she glanced over her friend’s body. Twilight, of course, was looking at her boobs, so turnabout was only fair. Twilight Sparkle was still wearing the same outfit she’d come with last time she’d visited Canterlot High, despite having a horn now, and Pinkie was disappointed that her light blue top was much too big and poufy to get a good idea of what she’d look like with it off, even without that cute little pink bowtie getting in the way. Her long purple arms were very thin, like someone—some… pony?—who didn’t get very much exercise, not that Pinkie could really beat her there. She was rather tall, maybe two thirds of a head above Rarity. Her layered purple skirt was a conundrum, not very long but still long enough to hide everything, and extending far enough out from her waist as to discourage any speculation. Pinkie snorted quietly. This was clearly a girl who knew nothing about sex appeal.

Still, she was pretty cute. Her big purple eyes were full of wonder and curiosity, at least when she wasn’t feeling peeved, and Pinkie had a sudden urge to lick that cute button nose. The horn should have looked bizarre, and okay, it really did look bizarre, but it also looked right, like just one more optional part of one’s normal anatomy. It probably helped that her hair managed to cover up the base of the horn, so you could pretend it was only a fashion accessory if you wanted to. Her ears were definitely much too big for her head, but those vast feathery wings looked really soft and inviting, no matter how regally she tried to carry them, and those were definitely lips made for sucking. Pony princess or no, she could probably do a lot worse than Twilight Sparkle if things came to that.

Pinkie subtly snuck a hand under the table, out of Twilight’s line of sight, and poked at her nether lips. Definitely some moisture going on. Intriguing!

“So,” said Twilight, “you said that you’ve been experiencing tingling sensations?”

“Right!” Pinkie smiled and shook herself back and forth to illustrate, but Twilight didn’t seem to react. Darn. “Tingle tingle tingle, ever since you showed up. Kind of like there’s something inside of them, pushing outward, but in a tickly tingly way, you know?”

Twilight pursed her lips and leaned forwards again across the table. “Not specifically, sorry. You haven’t exhibited any strange powers, like, I don’t know, firing energy beams from them, have you?” She reached out a hand and then stopped. “Oh! Wait, hold on… is it okay if I touch them? Is that taboo here? Clothing frequently accompanies bodily taboos, after all, and everybody wears shirts here all the time.”

Pinkie Pie felt herself beginning to sweat a little. This Twilight chick was one fast mover! Just like she liked it. “Heh, it’s kind of taboo, yeah!” she answered. “Less so since you’re another girl, and because it’s for science and all that stuff. But I should probably lock the door and lower the blinds, in case anyone walks by and looks in at us.”

“Oh.” Twilight withdrew her hand and looked at the windows in confusion. “Really? Even though it’s for science?”

Pinkie giggled. “You’d be surprised at what kinds of things people have tried to get away with in the name of science!” She skipped over to begin closing up the shop. “Let’s just say anything you’re about to do, you probably shouldn’t do while we’re at school. Oh, but don’t worry about this place! The Cake family give me free rein over the ‘Corner on weekends, and I’ve gotten super great at cleaning up too. Moppie Pie, they’ll call me someday! Or Pinkie Mop, but that sounds kind of stupid. Hey, does pony me have any weird nicknames that you call her? Or affectionate ones, maybe, or hey whoooooooooaaa!”

Pinkie Pie froze in place, still holding the pull cord to the last window blind, which she’d just brought down. Twilight Sparkle’s hands were handling her coat hangers. Twilight was copping the mother of all feels. Twilight was standing behind her, arms wrapped around her, feeling her up with those long, exquisitely jointed fingers. This was really happening. She was totally going to fuck a pony princess. Never let it be said that Pinkie Pie led a boring life! Oh, and something something about science too, go science, it’s your birthday!

“Well, they’re definitely soft,” Twilight said. She ran one of her hands tantalizingly down Pinkie’s front, and Pinkie whimpered softly. “Heh, I guess you’re soft all over, though. Discounting the nipples, which have hardened. Is that normal? Did I make your nipples hard?”

It took a great deal of willpower for Pinkie Pie to turn around to face her, and she grabbed Twilight’s hand and put it right back on her boobs immediately afterwards. “Some of both!” she said. “It’s normal for them to be hard sometimes, but ooh, baby, right now you’re definitely the reason why.”

Twilight frowned, and Pinkie was interested to see there were little drops of sweat forming along her hairline, despite her continued outer calmness. “I’m not sure I understand. Sorry, remember that I’m still not very used to these bodies.”

Pinkie looked at her deadpan. “Really?” She hesitated a moment, but decided this was no time to be cautious, not when everything was so new and exciting and she was already getting so wet, and so she reached down and up under Twilight’s poufy shirt and grabbed a tender Twi-tit. It was surprisingly ample, and quite firm, though part of that was just the bra at work. She snaked a finger in behind the bra and roughly tweaked Twilight’s nipple, grinning when she saw the brief gasp of surprise—mixed with pleasure—appear on her friend’s face. “See?” she asked. “You’ve gotten hard yourself!”

“Oh… heh, that’s, um, that’s true, isn’t it.” Twilight’s eyes were a little wide at that point. “Okay, I guess I can discard that hypothesis. Are you exhibiting any other abnormal sensations?”

Pinkie leaned back against the wall, brushing against the window blind as she did so. The slats pressed against her naked back and sent delightful shivers racing down her spine. “Mmmm, I’ll tell you what,” she said, “why don’t you feel for yourself?” She took hold of Twilight’s hand once more and guided it rapidly down and under her skirt, laying it at rest against her dripping pussy. “See?”

Twilight blinked. “Um, Pinkie Pie… is that your vulva?”

“Heehee, yep! Don’t stop now, Twilight! Although if you wanted to go a little farther, maybe do some rubbing, I wouldn’t complain!”

“But… why is it all wet? I thought you said that you were getting tingling sensations in your breasts. Why am I feeling your vulva now?”

Oh. Oh, poop. Poopy poop poop. Pardon her French.

There was adorable naïveté, sure, but there was also sexual assault, and suddenly Pinkie Pie wasn’t sure which side of the line she was on. She stepped away in a hurry, withdrawing her hand from Twilight’s shirt with more than a little reluctance and getting out of range of Twilight’s own probing. “Twilight Sparkle,” she said carefully, “what do you think we’re doing here?”

Twilight looked back at her. “Science?” she asked. And sure, her breath was a little ragged, but she still sounded really sincere, like Pinkie had been taking advantage of her this whole time, stupid, stupid, what had she expected trying to have sex with a pony, of course they wouldn’t understand everything, she’d seen how much trouble Twilight had had getting used to her body and this world the last time, and then she’d just assumed that everything was totally understood between them, without making anything explicit, or, uh, stating it clearly, because obviously making things explicit wasn’t the problem, or not the problem in that direction, urrrarrgggggh, stupid, stupid, stupid…!

“Yes,” she said, holding on to whatever hope she could find, “science! Science is good and all. But… anything else?”

“Umm… friendship?”

Sooooooooo stupid stupid stupid stupid stupid! Look at that face. Twilight was trying so hard and just didn’t understand and that was all Pinkie’s fault. She guessed the best thing to do was face the music. “Sure, friendship too! But also sex.”

“Sex?”

“Sex!” Pinkie Pie resisted the urge to do a little hop—this was serious business. “That was sex we were having, or, heehee, the early stages of it. Ponies do know what sex is, right?”

“Of course I do!” Twilight shot back. “Uh, we do. Whichever. A stallion places his penis inside of a mare’s vagina, and deposits his sperm, which may then react with her egg to create a fetus, or more than one in the cases of twins, triplets, etc.”

Pinkie Pie rubbed her eyes. This was going to be more work than she’d thought. “And do ponies ever have sex not for making babies?”

“I think so, yes. It’s supposed to be a pleasurable sensation, after all.”

“And how about women? Um, mares? Can two mares have sex with each other, again, not for babies?”

“Of course, though then there isn’t a penis included. That’s called lesbianism.”

Pinkie winked. “Hey, well, we’re young and crazy. Let’s not worry about labels! Otherwise, though, that’s exactly what’s going on!”

“Two mares having… oh. Oh!” Twilight jumped backwards and almost lost her balance on the slick floor. “Was I committing adultery with you?”

“Uh, no?” Pinkie thought about it. Twilight had been pretty into that Flash Sentry guy last time, but that had been four moons ago, and she guessed maybe Twilight might have gotten married in that time. She didn’t know much about pony life, after all. “Maybe? Are you married to any pony?”

Twilight shook her head. “But we’re not married, the two of us!”

“Doesn’t matter.”

“You’re not even my marefriend!”

“Doesn’t matter.”

“Wait… it doesn’t?”

Pinkie spread her arms out wide, jiggling just a little bit. “Nopers! Sex is fun, Twilight! Sure, some people insist on saving it for marriage or whatever, but that’s only if that’s what floats your boat. Otherwise you can have sex with anyone you want, if you like them or think they’re hot or whatever, so long as you’re both totally into the idea and you’re not seeing anyone else at the time who might take offense!”

Twilight stared at her, and Pinkie was pleased to notice that part of her attention was now also on Pinkie’s still-bare chest. Once again she tried to push her boobs forward a little, though not enough to make it obvious that was what she was doing. Twilight was visibly thinking hard, and Pinkie felt proud that she’d been able to give some new information to such a smart pony girl, even if they still hadn’t made any progress on the mystery of the tingly titties. Well, one step at a time.

“So what you’re saying,” said Twilight after a couple minutes, by the time Pinkie was starting to feel a little silly for standing there silently presenting her boobs, “is that you like my personality and/or find me physically attractive, and would like to share a fun physical activity with me that would make us both happy and increase our friendship.” She blushed, and Pinkie beamed as the blush spread across that cute little nose. “I figured out that last part myself. All my bonding experiences with my pony friends make us closer, so I assume the same would hold true here as well.”

Pinkie grinned, trying not to look too hopeful just in case the cat wasn’t one-hundred-percent in the bag yet, although gosh, it sure sounded like it was. “That sounds right! You’re cute, we’re friends, I’m horny, we’ve got nothing better to do… let’s screw.”

At last Twilight shrugged her shoulders. “It definitely sounds like a valuable experience for my studies of this world and its inhabitants. Okay, I’m in.”

“You’re in?!”

“I’m in! How do we… start?”

Pinkie Pie leapt across the gap between them and threw her arms around Twilight Sparkle, pulling their faces together for a kiss. Twilight’s lips were a lot drier and more chapped than they’d looked at a distance, like maybe she didn’t take too good care of herself, but that wasn’t a big deal. Lips dueled with lips, rolling blissfully back and forth, until Pinkie tried to slip her tongue inside but found Twilight’s stubbornly closed. She sighed.

“Open your mouth, silly.”

“My mouth? Why?”

Pinkie gave no explanation, but simply started kissing Twilight again before she could finish talking. She found Twilight’s tongue waiting for her, sitting quietly and unsure of itself among the teeth and gums, and she gave it love, made it feel wanted, danced the dance of tongues as their bodies pressed together in the middle of the store. She licked the inside of Twilight’s mouth clean, pressing one hand against her to encircle one covered breast and roll it around, and couldn’t help but smirk as Twilight moaned beneath her.

Pinkie Pie pulled back, and a chain of saliva briefly connected their parted lips before breaking apart and splashing warmly onto Pinkie’s exposed boobs. She giggled, and spread it around a bit with one hand. “That’s how we start!”

Twilight’s eyes were glazed and unfocused. “You mean there’s more?”

“Lots more! How do you want to do this? Do you want me to help you a lot, or are you okay with figuring it out on your own?”

“Umm.” Twilight backed up a few feet, tripped over herself, and managed to grab onto the back of one of the booths just in the time. “Wow. Uh, is it okay if I defer that decision to you? Either I’m really unqualified, or you’re really qualified, or both.”

Pinkie bounced in bliss. That definitely sounded like a compliment! Suddenly she kind of wished she could write a letter to herself when she was just a little baby Pinkie, something like ‘Dear younger me, not only do I have sex with princesses who are also magical flying ponies, they tell me nice things about myself! Hang in there!’ Sure, Twilight was only one singular pony princess, but a little exaggeration for the sake of encouraging yourself never hurt anybody.

“I think we can try playing it by ear!” She leaned forwards to wink at Twilight, and oh gosh, the way Twilight gasped just the tiniest bit was so darn cute. She had to be sexier than she’d thought. “I’m not really too into that Slave&Master stuff, you know? And hey, you’re really smart, so if we just obey three simple rules then this should work out!”

“Rules! Okay, yes, good, I like rules!” Twilight fumbled around before discovering she didn’t have any purse or anything with her. “Do I need to write these down?”

Pinkie sashayed forwards, swaying her hips as best as she knew how. She didn’t have a lot of experience acting sexy—acting silly took up most of her time—but she was sure going to try. “Nah, they’re very simple rules,” she said softly. “And if we’re obeying them, then everything’s good, and if any of them get broken, then there’s a problem. Are you ready?”

Twilight stared mutely down at her. “I… I’m ready.”

Pinkie reached out her arms and hung them over Twilight’s shoulders, looking right up into the taller girl’s eyes. They were purple and overwhelmed and oh, hey, this was her chance, wasn’t it? She stood on her tippy toes and gave Twilight’s nose a quick lick, laughing happily at how big a blush she made. “Rule one,” she said, “is that you should feel happy.”

Twilight wasn’t saying anything, so Pinkie carefully took one of her long purple hands and placed it back on her chest—where it belonged—like at the start when she’d been closing up the shop. Still Twilight didn’t move, so Pinkie took a little more control, moving Twilight’s hand up and down and massaging herself indirectly, until finally Twilight got the idea and began to stroke Pinkie’s thrumming titties in earnest, eliciting strangled sighs of contentment. “Rule two,” said Pinkie, “is that I should feel happy.”

Twilight flicked one of Pinkie’s nipples experimentally, and Pinkie couldn’t help herself, leaning forward to kiss her again but longer and more deeply than before. Their twin bodies rested against each other, Twilight only resting on the booth a little bit for support, with only Twilight’s gently caressing hand in-between them. Her other hand cradled Pinkie’s waist, and Pinkie returned the favor, also taking the time to stroke Twilight’s inexplicable feathery wings. They weren’t tits or anything, but they were definitely a new and unique sensation, and there was something undeniably soothing about running her fingers through the layers and layer of soft feathers and knowing that they didn’t belong to some random bird or anything, but actually a cute girl who was just then trusting her with her body. They kissed, and gradually Twilight became bolder and her own tongue began to play with Pinkie’s, twining and intertwining in delicate spirals in the shared space between their two mouths.

“Pinkie…” murmured Twilight at last.

“Mmmmm. Yeah?”

“What’s the third rule?”

“Huh? …oh, right!” Pinkie stood back down and tried to look stern, though really she was panting, and there was probably a little puddle on the floor below her if she cared to look. And her boobs felt so incredible, like they were rising and falling to respond to Twilight’s touch even before she could move to caress them, and her nipples were all but bursting at the seams. “The third rule, right, heehee, the third rule…

“The third rule is that we’re wearing waaaaaay too much stuff right now.” She burst out laughing at the surprised look on Twilight’s face. “Come on, Twigal, chop chop! This one’s an actual order… off with that shirt! Boots too, and the skirt of course. Let’s do this thing properly.”

Satisfied to see Twilight start fumbling with her shirt buttons, even if it did mean that she had to stop her fondling, Pinkie turned her attention to her own self. Her shirt was gone long since, of course, but she was still vaguely decent from the waist on down. She pulled her boots off first, glad that neither of them seemed to have any foot fetish, since that would have made it take a lot longer. That left her skirt, and as she dropped it down around her knees where it could be easily stepped out of, she couldn’t resist taking a quick look at her pussy. It was definitely approving of how the day’s activities had been going so far. Her lips were flared outwards and gleaming, the smell of delicious strawberries was overwhelming, and there were soggy trails descending down both of her legs. She wanted to stick her hand in and feel around, add the glorious warmth and wetness to all the other billions of sensations she was experiencing, but she guessed she should probably leave that to Twilight. She’d have other stuff to focus on soon enough.

“Umm… like this?”

Pinkie looked up. Twilight stood partially undressed in front of her: her feet were bare and suspiciously ticklish-looking, but she still had her skirt on, and over that was the dullest, frumpiest black bra that Pinkie had ever seen in her life. She stifled a laugh, but it didn’t really work. That magic mirror sure had a funny sense of humor! “Come on, you can do better than that!” she said. “Look at me, naked as a jaybird! I’ve never actually seen a jaybird, of course, but they’re birds, so I figure they’ve got to be pretty gosh-darn naked, right?”

Twilight was in fact looking at her, and something in her brain looked like it had maybe broken just a bit by doing so. Pinkie, standing there surrounded by discarded boots and other clothing, creamed the tiniest bit at the thought. “Right, okay,” said Twilight. “I’ll just… get this bra off. Sorry.”

Pinkie giggled. “The skirt too, silly! You’re not done with the skirt still on!”

Twilight stared down at the ground, looking… guilty? Oh, that wasn’t following rule one at all! “I... I’d rather not,” she whispered. “Not yet. I’m sorry, I’m not ready for that. You wouldn’t… I’m sorry.”

Pinkie ran to Twilight and hugged her tight, basking in the feeling of skin pressed against skin but also intent on making sure she knew she hadn’t done anything wrong. “That’s fine!” said Pinkie, speaking mostly into Twilight’s inviting cleavage. “That’s fine, don’t worry. Anything we do that you don’t want to do, you tell me right away, okay?”

“Okay.” Twilight smiled at her gratefully. “Anything else is fine, Pinkie, but…”

“But nothing!” Pinkie nuzzled up close, more than a little selfishly. “We’re here to have fun and trust each other, remember? If I do something you don’t find fun, that’s breaking your trust, and breaking a friend’s trust is the fastest way to lose a friend…”

“…forever.” Twilight laughed. “Your pony self taught me that one! At great length. But okay, let me take off this silly bra.”

Pinkie put a finger to Twilight’s lips, and sighed as Twilight opened her mouth to it just the tiniest bit. She’d been right about those lips being built for sucking. “Ah, ah,” she said. “Let me take care of that one. You just do whatever feels natural.”

Pinkie Pie reached around Twilight’s back, underneath the point where the feathery wings stretched out of her back, and felt for the bra clasp. It had been a while since she’d needed to worry about one of those things, but it wasn’t like they were very difficult, and in a few seconds she had it off. Twilight’s bra fell to the floor below, leaving Pinkie to behold the day’s bounty, won through all those hugs and kisses and honest explanations.

Twilight Sparkle’s breasts weren’t huge like Fluttershy’s, or tiny like Rainbow Dash’s, or perfect like Rarity’s, or even just plain natural like Applejack’s. Most obviously, they didn’t really match. The right was definitely bigger than the other one, and it stood a little higher on her chest too, while the left hung at a slightly odd angle. Her nipples were a gorgeous, deep dark purple, with areolas wide enough to make them easy to spot, yet they weren’t as long as they could have been.

And, Pinkie realized, that fit in perfectly with the rest of her, because even though Twilight Sparkle was a magical talking pony princess who’d cast some sort of crazy time spell on a magic mirror to travel into another world so that she could have sex with Pinkie Pie—abridged version—she still felt really awkward. She was strangely tall and skinny, and her ears were still too big, and her fingers were comically long. Her breasts were different sizes. There was a birthmark on one of her feet that was larger than it should have been. But none of that really mattered, because for one, here she was offering herself to Pinkie’s care and Pinkie was happy to oblige, and for another, there were boobs right in front of her right in her face and they needed to be all kinds of sucked and fondled right then and there.

Pinkie knelt before her purple goddess and, wait, hold on…

“Hey Twilight, you’re a princess, right? Are you a goddess too?”

“Technically, yes.”

“Awesome, just checking.”

Right, so like she was saying, Pinkie knelt before her purple literal goddess and gave forth her devotion. She took one beautiful dark nipple into her mouth and sucked it, licked it, bit on it just hard enough to arouse but not to cause real pain. This was it. She had found her bliss. Twilight Sparkle’s caneless umbrella had become her world, for not only was her mouth firmly encirled around its point, the rest of the breast pressed against her face, breast on her nose, breast on her chin, breast on her forehead. She opened her eyes, which she’d not even noticed closing, and Twilight filled her vision, nothing to see but that curve of that purple skin, that glorious curve, terminating in the deep purple mesa that she continued to suck with all her might. When she did let go, it was only to transfer to the other orchid orblet, noting with pleasure as she did the large puddle of saliva she’d left on the first one in the meantime.

“Ahh… Pinkie.” Twilight’s voice lacked any and all composure. “Don’t stop, Pinkie, don’t stop!”

Pinkie had no intentions of stopping. She grasped the left boob, the one she’d started on, and began to smear her saliva into it, gently at first but more roughly as Twilight made only joyful sounds in response. The nipple twanged decadently against her hand as she rubbed it back and forth and all around, though Twilight’s violaceous voluptuousness was too rigid for any really hardcore kneading. Suddenly inspired, Pinkie brought her hand down to slurp up some of her forgotten pussy’s juices, and applied them to Twilight’s chest as well, stirring up a saliva-cum cocktail to spread all over Twilight’s tasty titty. The mixture shone in the diner’s lights, and Pinkie could just make out her smiling reflection.

Twilight for her part was stroking Pinkie’s body indiscriminately, lithe fingers running up and down Pinkie’s back and front like drunken farmers trying to plow a field in rows. The magic mirror had seen fit to leave her nails mostly clipped, but they were just long enough for Pinkie to feel them sliding across her skin and leaving temporary grooves in their wake. She cried out softly every time they passed an especially sensitive spot, tiny sounds of “ooh!” and “whee!” and “yes!” escaping her lips involuntarily and being swallowed up by Twilight’s welcoming areola.

Twilight’s wide hands were self-serve gas stations of sweat, and no part of Pinkie appreciated this more than her boobs, which felt like they were soaking up the sweat directly and filling her body with energy from it. Her nipples were on fire, playing a drum section against her titties, though not from any classical song, since Twilight only stroked them irregularly, but some strange new-agey Celtic ballet soundtrack that was more interested in sex and carnal delight than in any traditional rhythm. There was probably some song somewhere that could be described that way, right? Pinkie had no real idea.

Thus far Pinkie had been holding on to Twilight’s butt with her other hand, holding her friend in place and massaging her firmly through the thick layers of her skirt, since that at least Twilight hadn’t objected to. But she got another idea, and moved her hand up to pray on the area of Twilight’s back below her scapula, where her wings extended outwards. Supposedly those wings were still relatively new, so maybe…

“Ahhh! Oh Celestia! Pinkie!”

Pinkie leaned back to smile upwards at Twilight, who stared crazy-eyed back at her. “You’re sensitive there, huh?” she asked, and pressed her hand against the joining spot again, right between the bases of the two wings.

Twilight screamed. “Sensitive?! Oh Celestia oh Pinkie oh yes I’m sensitive there apparently!”

“You want me to stop?” asked Pinkie. With her other hand she played idly with Twilight’s headlights, pushing them firmly together and enjoying watching them bounce back when she let them go. So much better than playing with her own, even if she couldn’t feel them as directly!

“Pinkie… ooh!” Twilight writhed beneath her fingers. “Pinkie, if you stop that I will banish you to another dimension filled entirely with shrimp!”

“Yeah?” Pinkie ran a finger along a low-hanging feather, still struggling to believe how soft they were to the touch. “I could go for some seafood later, whenever you think you’re up to that…”

“Huh?”

Sigh. Ponies. No sense of innuendo at all. “Never mind.”

Suddenly Twilight grabbed Pinkie’s head from behind and thrust it back to her heliotrope hubcap collection, where Pinkie was only too glad to be. The taller girl was definitely getting close, with sweat running down her chest for Pinkie to spirit away with careful laps of her tongue, and her body was shaking. Pinkie laid her hand between the wings again, but gently, taking care not to overstimulate Twilight all at once.

“Ahhh… Pinkie, Pinkie yesss…”

Twilight was whimpering continuously, little sounds falling short of words escaping from her lips as her eyes stared into nothingness. Her hand was inescapably lost in Pinkie’s enormous head of curls, even sweaty as they were, and rubbed up and down her scalp, exciting Pinkie more than she’d have expected. Her legs were clearly unsteady, and it was only the supporting booth face behind her, as well as Pinkie’s encircling arm, that kept her upright for the last few minutes. She bucked sporadically, filling Pinkie’s welcoming mouth with bouncing tit flesh, and her horn sparked on occasion, though thankfully nothing bad seemed to result from that. Her wings, which Pinkie continued to pet between skin touches, not sure if they were actually sensitive but simply enjoying their texture, were stretched out rigidly from her back, not flapping in the slightest.

“Yess…. Pinkie!”

Pinkie lowered her head to lick down the entirety of Twilight’s chest, right down to her tiny little belly button, and then back up again. Her own boobies jostled against Twilight’s skirt, reveling in the feel of the flared fabric, but there was no time for that. Twilight was obviously almost there. Pinkie leaned back for a moment, smiled, then pressed her face to Twilight’s right tit and gave it the biggest, wettest raspberry of her life.

Twilight burst into giggles. “Pinkie! Heeheehee! What are you—“

Pinkie pressed down on Twilight’s back between her wings, hard, and Twilight screamed.

Her scream filled the diner, her body spasmed over and over, and rays of harmless multi-colored light shot forth from her horn in all directions. Several sticky globs fell down between her legs, from whatever embarrassing thing Pinkie guessed she had to be wearing, and Pinkie caught some with one hand. She considered tasting it, but that seemed a little much, so she smeared it happily over her boobs instead, where it shone for several seconds before evaporating.

Twilight, spent, collapsed to the floor, and sat there staring directly at Pinkie’s soaked pussy as she caught her breath. Her wings shook for several seconds, along with the rest of her, before finally settling into a more casual posture than their earlier rigidity, and her previously-orderly hair hung sweatily from her head in all directions.

“And that,” said Pinkie Pie, licking her grinning lips, “is sex.”

“No,” said Twilight. Her eyes were slowly coming back into focus, even as a puddle was leaking out from under her skirt. “No, that’s not sex. That’s how we start.”

Pinkie blinked. “You mean there’s more?”

“Oh, yes.” Twilight was pulling herself to her feet, apparently by sheer force of will. “Rule two, remember? I need… I need to repay you for that. That was so incredible, Pinkie, and I need… you need to cum too, or it’s not fair. Friends don’t let each other down like that. Friends get each other off.”

“Well… okay, if you’re sure.” Twilight was still shaking, Pinkie noticed. “Honestly, I can get myself off if you’re too out of it!”

Twilight Sparkle enveloped Pinkie Pie in a kiss, and Pinkie squeaked as she felt Twilight’s wings close around her, those endless purple feathers brushing against her suddenly-sensitive back in a million different spots. An image of Fluttershy doing the same thing suddenly crossed Pinkie’s mind, those yellow wings and those beautiful enormous stereo eggtimers, and she whimpered. “No, I’ll be fine,” said Twilight. “I’ve actually got an idea.” There was something about the way she said ‘an idea’ that made Pinkie nervous. “Do you mind if I use my magic on you?”

“Umm…”

“Don’t worry, I’m very powerful.”

Pinkie giggled helplessly. That hadn’t really been her concern! But she was still wrapped in those heavenly wings, and she guessed she really should give that horn a chance too. “As long as it doesn’t hurt, I guess that sounds fun!” she said, bouncing a little in Twilight’s arms.

Twilight smiled as she stepped back. “Don’t worry, Pinkie. I’ve never hurt you… pony you, I mean.”

“Spifftacular!”

“I may have once utterly disintegrated several dozen exact physical copies of you, but they weren’t really you, so that doesn’t count.”

“Wait, what?”

Before Pinkie could say another word, she was surrounded in sparkling, reddish-purple light, and then her feet were no longer touching the ground. She was at eye level with Twilight’s eyes, eye level with her horn, and then higher up still, floating in the middle of Sugarcube Corner above a pony princess and a mess of sweat and cum and abandoned clothes. It was the weirdest weekend since that time when she was three years old and discovered that Santa Claus was actually real after all.

Then her perspective began to shift, and Pinkie realized that she was being rotated. The field of magical light still clung to her as the ceiling came into view, and then Pinkie was lying flat on her back in midair, legs spread temptingly apart, with her curly hair running down the back of her head and hanging in the air below. She couldn’t see Twilight at all unless she turned her head to the side and really stretched her neck to look downwards.

“I should warn you,” she heard Twilight say, “I’m a little hungry after that. And when I’m hungry, sometimes my ideas end up being about food.”

“Huh? …ooooooooh!”

A dozen small components of Sugarcube Corner were floating up around Pinkie, all caught up in the same magic glow. Jars and bottles and long squeezy tubes, filled with whipped cream and icing and frosting and sprinkles and chocolate sauce and other sticky things, and every one of them was losing its lid and approaching Pinkie’s naked, waiting body.

The next few minutes were like nothing Pinkie had ever imagined—and she imagined a dozen impossible things even before breakfast!—as topping after topping was smeared on top of her. There was ice cream on her cones, sprinkles in her belly button, and chocolate on her clitty. Long thick lines of icing and frosting, whatever the difference was, coated her stomach and ran up and around her creamy boobs, and there was even a circle of whipped cream around her lips, although she licked that one off pretty quickly. Then she squeaked as another bit of super-chilly ice cream was added, this time directly inside of her open pussy.

“Had to add some cream filling,” said Twilight.

The food containers receded downwards, and she watched in awe, trepidation, and mostly lust as Twilight rose into view, her big wings flapping deliberately to propel her aloft. Pinkie stared hungrily at Twilight, and Twilight stared hungrily back.

Then she began to lick, and Pinkie lost the capacity for high-level thought.

The magic field keeping her in the air was perfectly unobtrusive. It didn’t tickle, it didn’t poke, it didn’t even feel like a flat surface for her to lie on. The only sensations she felt anywhere were the various toppings, and Twilight, as she ran her tongue all over Pinkie, top to bottom, over and over, lapping greedily at the frosting and icing and who knew what all. Pinkie moaned and squealed and whimpered as the tongue passed over her taut flesh, raspy, seeming to leave no spot on her untouched and unloved. There were spots of frosting and ice cream and so on all over Twilight’s face, from where she’d leaned in too far or missed a spot, and Pinkie couldn’t think of the last time she’d seen a sexier sight.

Groaning, Pinkie pressed her hands to her boobs, pushing and kneading and feverishly working the ice cream into her skin, blending skin and ice cream together until her nipples stood out like cherries on top of twin pink sundaes, glistening like they’d never glistened before. Twilight noticed and flapped forwards to lick them too, her tongue running tight circles around Pinkie’s shining tips like the tongue of a goddess, and Pinkie moaned and shook, filling her hands with Twilight’s hair and exploring the base of her thick, rigid horn, which glowed reliably despite their shared excitement.

At last Twilight moved back, back past Pinkie’s titties and her stomach and her belly button and her wild pubic curls, all the way back to her anxious pussy, drowning in ice cream and chocolate sauce and crying out for attention. Twilight hesitated, Pinkie pled, and Twilight leaned forwards and placed her hands on Pinkie’s spread-open knees to steady herself and began once more to lick.

In all actuality, Twilight wasn’t the best pussy eater, but she did have one major advantage that made it all worthwhile, and that was her wings. Pinkie was suspended motionless in the air, save for her shaking and for her hands massaging her ice-creamy boobies, but Twilight… Twilight rose up a little every time her wings flapped downwards, and went back down again every time her wings ascended for another flap, and it was that motion that was driving Pinkie insane.

Up and down flapped Twilight, and up and down went her tongue on Pinkie’s clit, tasting and arousing and occasionally getting inside, but only rarely, because she was constantly in motion and there was no time for any real exploration. The ice cream seeped out of Pinkie, melting and carried out by her leaking pussy juices, and collected messily on Twilight’s nose and cheeks, where she gamely let it remain. Still her tongue flicked along Pinkie, and Pinkie moaned, wishing she only had more ice cream to grind into her boobs but of course it was all gone already.

It wasn’t fair how soon it was over, but then Pinkie had been aroused already for so long before Twilight had even started licking her. She was shaking, even more than before, cooing and gasping and making all kinds of sounds, and Twilight, bless her tits, was still down there licking, and her tongue caressed Pinkie’s nookie nest like a balloon caressed a scalp to get static electricity, and every part of Pinkie’s body was alive, alive with the song her boobs were singing, a song of love and gratitude, and Twilight licked and licked and Pinkie cried and shook until at last she couldn’t take it anymore, not the tongue, not the wind from the wings, not any of it, and she came.

But she didn’t come from her pussy. Instead it was her boobs that bounced and leapt, and it was her nipples that split open, releasing the anguished tingling fiery energy they’d been storing for so long, as wave after wave of milk shot out of her and into the air, landing on her boobs, on her face, on her stomach, on the floor, on Twilight’s hair. Pink milk spurted forth in all directions as she heaved, and then Twilight lost her concentration and Pinkie fell down to the floor, not far enough down for it to hurt, and she lay there, stunned, as her boobs rippled and the last waves of milk poured out of them and collected on her chest and on the floor.

“Pinkie Pie?!” Twilight had landed on the floor, her wings now tucked behind her back, and she was kneeling down with a face full of anxiety. “Talk to me, Pinkie. Are you okay? Did I hurt you?”

Pinkie was quietly delirious. “I feel amazing everything is amazing hi how are you”

Twilight breathed out. “Pinkie, was that… lactation? Is that normal for you, with these bodies?”

“No not normal at all nope gee I should probably ask a doctor about that huh” Pinkie traced a finger through a puddle of milk around her belly button. “Want to try some?”

Twilight reached forth a finger, stopped, laughed at herself, and leaned down to slurp from Pinkie’s stomach directly. She looked alarmed, but adorably alarmed. “Pinkie, this tastes like strawberries. You’re lactating strawberry milk. That’s not scientifically possible.”

“No shut up you’re not scientifically possible.” Pinkie Pie shakily gathered up a little of the milk and pressed it to her lips. “Huh, you’re right! That’s strawberries! Neato!”

“I don’t even know where to begin studying this,” Twilight said. She bent over to take another taste, and then stopped, staring. “Pinkie… your breasts!”

“Yep, that was all them! Pretty cool, right?”

“No, I mean…” Twilight appeared to be fumbling for words, or maybe thoughts, it was hard to tell. “They’ve gotten bigger!”

Pinkie sat straight up immediately, almost bashing her head into Twilight’s, and stared down at herself. It was true! Her Pinkie pies, normally only a little taller than Dashie’s, had grown! They were just bigger than Applejack’s, and hung comfortably from her chest with some ample room for jiggling whenever she got in the mood, which was going to be all the time if this stuck. Her nipples, pink and still dripping the very last bits of strawberry milk, looked exhausted but very proud of themselves.

Pinkie’s eyes filled with tears as she looked back up at Twilight. “You,” she said. “Twilight, you. You did this.”

“Well, that’s a sensible initial hypothesis, for sure, but…”

Pinkie leapt forwards, knocking Twilight onto her back and making her long wings spread out around them on the messy floor. “It has to be you,” she said, still crying. “My boobies started tingling the moment you showed up, and they’ve been having all sorts of funny feelings all day long, and now they just shot milk all over the place and got bigger and none of that’s ever happened before, not till you showed up, oh Twilight, Twilight, thank you, thank you, thank you!”

They lay there, one fully nude and one nearly so, both bathed in milk and sweat and cum and frosting, Pinkie sobbing and thanking Twilight and kissing her again and again all over, although wondering what the doctor could possibly have to say to explain her new condition.