Complicated Relations

Twilight walked through the streets of Canterlot with a spring in her step. The sun shone brightly; there wasn’t a cloud in the sky to mar the brilliance of the day. Not that it mattered, of course. Even a deluge accompanied by howling wind would not have been able to extinguish the brightness in her eyes. During her visit to the palace, Celestia had remarked how unusually chipper Twilight seemed. Twilight had admitted the truth – or at least the relevant parts of it: that she and Shining Armor had worked through some relationship issues related to his marriage to Cadance.

Soon after that, a pleased Celestia had been called away on royal business, thus cutting short their meeting. As Twilight now lifted her hoof to knock on the door, she recalled how the same thing had happened to Cadance the day before, and just what it had led to.

Her hoof paused.

Did she really have to knock? This was her brother’s home, and she was staying as his guest. Surely it wouldn’t be inappropriate to just walk in, would it?

She pushed the door open. It wasn’t locked, to no surprise of hers; hardly anypony locked their homes here. Crime in this area of Canterlot was unheard of. She stepped inside, taking care to close the entry as silently as possible. A part of her – a childish, mischievous part which she normally kept just under her scholarly surface – hoped that she could catch her brother and his wife having sex.

It was a silly idea. What were the chances that Shining Armor and Cadance would be having intimate relations just at that moment? It was the middle of the day. There had to be hundreds of other things holding a better claim to their precious time. And besides, since when had Twilight, of all ponies, become the voyeur? Spying on her brother in the midst of coitus would be creepy and perverted.

Then again, probably not much more than actually having sex with him.

Twilight’s ears twitched, but failed to capture any informative sounds. She wasn’t even sure if there was anypony other than herself in the home. She moved soundlessly up the staircase and to the bedroom, the rascal filly within refusing to accept the explanations of the educated mare telling her that she was being utterly ridiculous. Gently, her magic aura pulled the door of the sleeping quarters open just slightly. Everything was still quiet.

Really, it would be a surprise if either pony was even in there. There was, for all intents and purposes, no chance that Cadance and Shining Armor were having sex on the bed.

Cadance and Shining Armor were having sex on the bed.

Twilight gaped. The image was unreal, yet she was positive that this was no dream.

Shining was flat on his back, his stare fixed intently on Cadance’s hips. She was straddling him, arching herself back and exposing her belly to him in a manner that was almost lewd in itself. Her own gaze was lost somewhere in the ceiling above as she delicately pumped herself up and down along the stallion’s shaft.

Two things of note immediately received Twilight’s attention. The first was that the couple’s actions were almost completely silent. It was truly impressive, and she even made a quick check for a noise-cancellation spell, only to find none. With focus, she was able to discern the soft sounds of fur-brushing-against-fur, and fur-brushing-against-bedsheets.

The second was how slowly the pair was moving. Every stroke was being taken with torturous patience and meticulousness. The stallion and mare were in no rush; quite the opposite. They had all the time in the world, and were taking every advantage of that fact. Each thrust, rather than being a forgettable and indistinguishable stone on the path to climax, was instead allowed to tell its own story. Several seconds lingered between each one, during which both ponies bathed in the sensations coursing through their bodies. Twilight could see her brother’s shaft disappear tantalizingly inside Cadance, abide a while as the two revelled in completeness, and slowly exit, covered with a refreshed sheen of her juices.

The technique needed no particularly advanced skill, but it did require significant self-control. The natural instinct to work harder and faster was ever-present, and only increased as arousal built up with time. It was all too easy to give up and devolve into frenzied rutting as the body begged for a quick release. Yet, with the right amount of discipline and the right attitude, such slow-motion lovemaking could sustain a prolonged and extremely pleasurable aura of physical and emotional intimacy, and ultimately reward the pair with the most intense, mind-blowing orgasms. Twilight knew that the two could go on like this for hours.

She knew it because she had been the one to teach Shining this particular technique, after having discovered it (of course) in a book. For a long time, her brother had been her instructor in the art of sex, and the day she finally started educating him – as tactlessly and academically as she had – was a day she was still secretly proud of. Twilight wondered if the current activity was something that the stallion had taught his wife; a gift from his sister that he had passed on.

She found she liked the idea.

More likely, though, Cadance’s special talent had made this skill a natural and obvious one for her. Still, it meant that she didn’t have to teach her husband; he had already been effectively trained under a different tutor.

Twilight liked that idea as well.

And that was the heart of the matter, she realised. Watching those two, she felt none of the jealousy that had clouded her mind before. She could only feel joy at their pleasure, and sincerely hoped that everything she had shared with her sibling would serve in some way to intensify his bond with Cadance. They really were beautiful together. She resolved to leave the two lovers to each other’s care.

Her legs didn’t respond. She told herself that she had seen enough, but her body disagreed. A familiar heat was building up just above her thighs, as well as on her face, as she recognised the obvious signs of her own arousal. Watching her brother mate was turning her on.

Watching Cadance mate was turning her on.

On some level, she had known this would happen. Curiosity alone had not commanded her to explore the house like this; she had been seeking excitement. Now faced with it, she fought with herself about what to do next. It was already wrong to be spying on the couple, but then, Cadance had done the same to her. And then apologised later.

So, to get truly even, Twilight could take the opportunity to watch them now, and, in turn, apologise later – she reasoned, badly.

The specious bit of logic was quickly dismissed. Things didn’t work that way. The correct thing to do was to leave immediately. Her body obeyed her now, as she lifted a forehoof...

...and brought it between her hind legs.

She had lost track of how long she had been standing there, but it had been enough to make her thoroughly wet. She began to knead her swollen sex in time with Cadance’s painfully slow strokes. The alicorn had leaned down to kiss her lover and was now back upright, eyes closed in sensual contentment. Shining had taken over the role of examining the ceiling, and his powerful chest rose and fell with each deep, lengthy breath. An occasional flick of the pair’s entwined tails created an almost imperceptible rustle against the sheets.

Twilight worked to control her own breathing, so as to not give away her presence. All notions of propriety had evaporated from her mind, her libido having overruled the more sensible portions of her psyche. Like the pair she was watching, she determined to take her time. With three of her legs locked in place, she gently rubbed over her engorged labia and swollen clitoris. Her own liquid provided more-than-ample lubrication for her masturbatory motions: Up and away with a teasing flick whenever Cadance lifted herself off Shining, and back and down toward her wanting nub whenever Cadance took Shining inside.

The couple sped up, just ever-so-slightly; Twilight kept perfect pace. When they kissed, she drew her slick hoof to her lips. She felt aroused, yes... but also safe, contented, and satisfied, as if she were witnessing the happy ending of a fairy tale. The scene before her was not salacious, but amorous, and she smiled dreamily.

It really was beautiful. Even if they did go on like this for hours, she would stay and watch.

After all, she had an excellent view, and basic geometry had turned out to be her ally. There was virtually no chance that she would be spotted.

And then she was spotted.

In a perfect twist of poetic justice, Cadance had idly looked into that same troublesome dresser mirror, and one pair of violet eyes locked with another. The pink pony’s head whipped to the half-open door, and a quick application of magic opened it all the way.

Twilight’s breath caught in her throat. She thought of making a run for it, but that idea was quickly rejected. Instead, she tried to give her best impression of having just arrived on the scene, and having innocently caught the couple at the wrong moment. Unfortunately, her pathetic attempt at a look of surprise came off more like a perverted ogling – ironic, under the circumstances.

“Twilight?” Cadance asked softly, though in the deafening silence her voice sounded like thunder.

Shining Armor followed his wife’s gaze and slowly absorbed the situation. His face retained a neutral expression, as if he couldn’t immediately decide what emotion he should be feeling.

“I’m... sorry?” Twilight stammered. “I... I was just...”

“Enjoying yourself?” Cadance finished, as a smile slowly grew on her lips. She was looking slightly downward, where, on the polished hardwood between Twilight’s hind legs, a few droplets of damning evidence were glistening in the light.

The young pony blushed fiercely.

“You know...” the alicorn said with a chuckle, “if you like what you see, you can come and watch from up close.”

Twilight stared dumbly. Was she really being... invited to observe her brother and sister-in-law having sex? She couldn’t detect any sarcasm in the offer. There was no hint of anger or annoyance either; just a gentle playfulness. The whole setting had a growing unreality about it, and the unicorn now half-expected to simply wake up in her bed at any moment.

“It’s fine, Twilight, really. Remember what I said yesterday?” Cadance encouraged after a few seconds passed without response.

“I... I thought...” The smaller pony turned aside bashfully. “That was just a joke...”

“Well, I’m not joking now,” the alicorn stated welcomingly, and turned to the still-blank-faced Shining Armor. “What do you think, Shine? Are you willing to perform in front of your sister?” She made a slight jerk with her hips, stimulating the organ still inside her.

It was now the stallion who blushed. He looked to his sibling, produced a shy smile, looked back to his wife, gave an approximation of a shrug, and finally nodded.

Cadance grinned.

The purple unicorn shifted her weight nervously as she made a few half-hearted attempts at eye contact with the pair. If these had been any other ponies, she would have long ago turned tail and ran. But these weren’t just any ponies; they were her closest childhood friends, and her family. Both of them, now. She trusted them, and apparently, they trusted her; enough to be willing to share their most intimate moment with her. As embarrassed as she was, she couldn’t help also feeling honoured at the offer.

“You don’t have to do anything you don’t want to, Twilight,” came the young princess’ comforting voice, reinforcing the atmosphere of safety and trust. “If you just want to leave and never mention it again, that’s fine.” She cast her gaze downward in barely-discernible disappointment.

After a few additional seconds of hesitance, Twilight entered the room and carefully made her way to the side of the bed. She stared the larger mare straight in the eyes, scrunching up her face in thought.

“Cadance,” she asked calmly, “did you just try to use reverse psychology on me?”

“Well,” the alicorn replied with equal composure, “it always worked when you were a little filly.”

On each mare’s face, a tiny smile slowly expanded into an ear-to-ear face-splitting grin. Both burst out laughing, and all the tension in the room was suddenly gone, as if it had never been there to begin with.

“Are you really sure about this?” Twilight asked when the reality of the situation began to reassert itself.

In response, Cadance completed a full stroke on Shining’s cock, causing the smaller pony to blush again – though not nearly to the extent she had previously.

“Nopony’s ever watched us doing it before,” she explained. “I think it might be interesting to see what it feels like. Don’t you agree, honey?” she questioned the stallion.

Shining nodded, and looked again at his sister. “You’re not just gonna stand there the whole time, are you?” he asked.

The two mares gave him a confused look.

“What I meant,” he clarified with a smug grin and a roll of his eyes, “was that there’s plenty of space on the bed.”

With an exchange of meaningful glances, Twilight cautiously climbed onto the mattress and did her best to make herself comfortable, taking up a position on her side, with a forehoof supporting her head. Her other forehoof hesitated briefly in the air before laying itself innocently on her hip. The action did not go unnoticed.

“Don’t worry, Twilight,” Cadance whispered as she resumed her slow-motion coition, “it’s okay to have fun with this. In fact,” she giggled softly, “it’ll probably be more awkward if you don’t.”

The unicorn bit her lip, considering this. After a few moments, she decided her sister-in-law was right, and, casting aside a further layer of inhibition, resumed her earlier masturbating. As before, she matched her own strokes to the couple’s. She watched as Cadance and Shining connected over and over again – and not just with their hips. Perhaps because of the fact that they now had an audience, the amount of nuzzling, kissing, and petting increased significantly. Yet, they weren’t engaged in some choreographed presentation; their intimacy was fully genuine. They had simply chosen to share it with another.

With every passing moment, the remnants of Twilight’s apprehension crumbled to dust. The expectation that this would feel naughty or kinky turned out to be completely hollow. Witnessing these two ponies mating felt, above all, profoundly natural and right. She wasn’t an interloper or third wheel; she felt like she belonged right there, next to them.

Emboldened, she began moving on the spacious bed, examining the pair from various angles. They certainly didn’t mind, and nopony shied away when eye contact was made. Twilight scrutinised every plunge and every caress, and wordlessly indicated her approval. As the coupling continued in near-implausible silence, the velvety sounds of pony-against-pony-against-fabric were all the more precious because of their rarity.

A very light, wholly inoffensive flowery scent – something like roses – was detectable in the air. Twilight concluded that it had to be Cadance’s perfume. It mixed with the hint of familiar stallion musk coming from Shining Armor, and the combination played in the air on a not-unsavoury note.

Now fully enraptured in the ambiance, the young unicorn’s actions turned bolder still, and she reached out with a foreleg to brush away a lock of mane that had fallen over Shining’s face. In the process, her brother’s lips caught her hoof, and she allowed it to linger there for a split-second. Not wanting to leave the kiss unreturned, she opted to go full-on and pressed her muzzle to his, even as Cadance continued to ride him.

As her tongue met her sibling’s, she felt Cadance nuzzle her mane from behind. It was a nostalgically familiar sensation to the unicorn; her foalsitter had often comforted her like this when she had been a little filly, though it had never had any sort of sexual accompaniment. Now she was doing it while in the midst of intercourse; a once-innocent gesture turned salacious...

...except that it wasn’t. It still carried all the care and gentleness it once did. Twilight fell back onto her side, now fully at ease as she shamelessly pleasured herself to the sight of the erotic display taking place beside her.

Without a word, Cadance lifted off her partner, and moved lower. His stallionhood stood lewdly at attention, and she briefly suckled on the tip, before thrusting an impressive length of it down her throat. Shining Armor reacted to the change of pace by shoving his head against the bed and shutting his eyes in bliss, while his hooves dug into the mattress. The pink mare worked his shaft expertly, using not only her lips and tongue, but twisting and bobbing her entire head to provide him with varied stimulation. With her eyes closed, she appeared entirely immersed in her task.

Twilight took in the new arrangement; Cadance no longer needed to put effort into moving her entire body up and down – likely why she had made the change – but now wasn’t being stimulated herself. All her efforts were being focussed on the stallion’s pleasure, and as much as the mare’s selflessness was worthy of admiration, it just... didn’t seem fair.

Like a hawk stalking its prey, the younger mare circled behind her. The alicorn’s rump stood out invitingly, her excited marehood presenting itself like a moist, tantalizing dessert underneath her swishing tail. It bobbed in time with her gulps of Shining’s cock, as if demanding somepony’s attention. Cadance had to be doing this on purpose, Twilight’s dopamine-soaked brain concluded; it couldn’t be anything other than a clear invitation, only lacking a written sign stating so.

The unicorn had never done this with a mare before, but she had already gone so much farther than she had thought possible. Now seemed like no time to get cold hooves. Holding her nose just a couple of inches from the sweet-smelling folds, she made the fateful decision.

She stuck out her tongue, and licked.

Cadance let out a muffled shriek and pulled away in a panic. “Twi–!” she exclaimed as she released Shining from her mouth and turned around to face her surprise assailant.

This was not the reaction Twilight had anticipated. Terrified, she backed up to the edge of the bed, just barely managing to avoid falling off for the second time in two days. “I’m sorry!” she cried. “I’m sorry Cadance! I– I just thought... you wanted...” Tears pooled in her eyes. How could she have been so foalish? They had trusted her, and with one thoughtless action she had betrayed that trust. “I– I’m sorry.”

The alicorn quickly collected herself, and gave a calming smile to the frightened unicorn. “It’s okay, Twilight. I just... I honestly didn’t think you’d be into that...” She chuckled softly. “You just surprised me, that’s all. I’m not mad.”

Her smile had had the intended effect, and Twilight was breathing easier now. “You’re not?” she asked. “Really?”

“Really,” the winged mare answered. “Just... warn me next time you do that. And not just for my sake.” She glanced at the stallion beside her. “I did sort of have something in my mouth...”

As her words sank in, Shining Armor’s pupils shrank to pinpricks, and his snow-white face somehow turned even paler. The stare he gave his sister told her more than words ever could.

“Oh.” Twilight’s eyes went wide. “S– sorry, Shining.”

Cadance laughed in earnest now. “Well, no harm done. And I definitely get points for putting your well-being ahead of my own,” she told her husband, who nodded in response. “You want to keep going?”

Another nod.

She took up her previous position, once more waving her posterior in Twilight’s face, though this time also throwing back a seductive look prior to taking in the stallion’s shaft. “So, Twilight, is there anything you want to ask me?”

“Um...”

“Better just straight-up tell her what you want, Twiley,” Shining Armor stated, smirking. “Trust me on that one.”

Once more, the younger unicorn was blushing, her ears plastered meekly to her head. She watched as Cadance began licking her brother’s cock, which had impressively managed to stay fully erect despite the blood-chilling scare the stallion had just experienced.

“Uh... Cadance, may I...” She coughed nervously. “...engage in some... uh... cunnilingus... with you?”

Shining actually threw a foreleg over his mouth to hide his laughter. The older mare did a far better job of maintaining her composure, and answered with a simple, sultry, “You may.”

Twilight re-approached hesitantly. This time, she was determined to do it right, and put Cadance’s needs first. When she got near enough, she took a whiff of the sweet, rosy scent. Instead of simply diving in as before, she tenderly placed her forehooves on either side of the princess pony’s radiant sex. Carefully, she spread the intimate folds apart, revealing a bit of pale pink flesh within.

“Uh... tell me if you want me to stop. I’ve never done this before,” she warned.

Cadance hummed out some kind of assent through her occupied mouth, though, after a moment, decided to give a proper response. “I’ve never done this with another girl before,” she admitted, “so it’s a first for me, too. There’s no need to be nervous. Let’s just have fun.”

Twilight softly pressed her lips into the waiting cunny, and allowed her tongue to tentatively explore the first half-inch of the tunnel beyond. The reaction was immediate; a shiver rolled through Cadance’s body, but she did not pull away as before. Instead, she let out a barely-audible yet unmistakably satisfied groan. The purple pony took the encouragement and began to move her tongue more freely against and into the nectarous flesh. She had no first-hoof experience with pleasing mares this way, though she did have the innate advantage of being a mare herself; it was logical to assume that what Twilight liked, Cadance would like as well.

The unicorn continued with what was, in truth, nothing but a sensual kiss against the larger pony’s nethers. Cadance’s clit beckoned for attention, but Twilight only deigned to occasionally brush it with her nose, letting the alicorn’s desire build ever-so-slowly. With her tongue doing the penetration, she used her lips to lightly fondle the mare’s labial folds, twisting her head this way and that to gain more purchase against her target. Her every movement was gentle and controlled. The theme for today was definitely tender, loving care; not wild, frenzied screwing.

Shining Armor became aware that something had changed. The pink alicorn’s ministrations to his stallionhood were rapidly becoming tinted with irregularities – little shudders and jolts that proved to be an entirely welcome addition to her already-skilled sucking. He looked down at his wife though a euphoric haze.

“Enjoying yourself?” he asked.

Cadance released him momentarily to whisper her answer. “Shine... this is... so hot.”

The white unicorn beamed. “Hey Twiley, I think she likes it!”

Twilight was about to find out just how much.

Encouraged by the effect she was having, she made the mistake of giving Cadance’s clitoris a quick and casual suckle. Much to her surprise, this instantly sent the long-pent-up princess over the edge. Twilight had only a fraction of a second of warning, in the form of every muscle in the alicorn’s body suddenly tensing up, before her mouth received a gush of the mare’s orgasmic liquid. She adapted quickly, however, and happily drank in the fruits of her labours. It was all she could do not to clop her hooves together in joy at her accomplishment in bringing a female to orgasm for the first time.

As her beneficiary descended from climax, Twilight considered her options. Communication was key, she had found out, and there was a piece of information she needed before she could decide what to do next.

“Cadance?” she solicited the mare’s attention. Upon receiving it, she followed with the crucial, hopeful question: “...More?”

Cadance smiled and breathed out a desirous “Yes.”

That was settled then. Twilight could easily continue as she had before, but seeing the mare in front of her in ecstasy had reminded her that while Cadance’s needs were now being taken care of, her own had been left unfulfilled. Her original role as mere observer now lay somewhere in the mists of forgotten prehistory; she was undoubtedly a full participant in this threesome; her first threesome, she thought giddily.

She would put all her skills to use and do what she did best:

Organise.

With a pat on the sheets beside her, she indicated for the alicorn to lie down, while Twilight herself moved nearer to her brother. As the two mares switched places, they ran straight into one another. It wasn’t altogether intentional, but it wasn’t an accident, either. Both had simply chosen not to alter their course, even as they saw they were headed for a collision. And, just like that, as if it were the most obvious and natural thing in the world, they kissed.

It was long, slow, and sensual, in keeping with the day’s activities. Of course, Twilight and Cadance had kissed before, many times. As a foalsitter, the young princess had never shied away from close physical contact with her charges, and Twilight had been her favourite. Loving smooches on the cheek and forehead had been commonplace, and, yes, even a playful, innocent peck on the lips was not unheard of. What they were doing now was, in a sense, very reminiscent of those times, but it was also so very much more than that.

“Little Twilight Sparkle, all grown up,” the pink pony commented as they finally separated. “Who knew you’d make such a good lover?”

“I... I didn’t really know what I was doing,” Twilight admitted, looking away in embarrassment. “I was sloppy.”

“Nonsense. You were passionate and creative. Which is more than I can say for Shiny here.”

“What?” said the stallion.

The younger mare nodded in agreement. “I know what you mean. I have to constantly keep reminding him that he can do more with his lips than just suck.”

“Hey!”

“Oh, totally! And the way you used your nose... I don’t think he’d manage that if I gave him written instructions.”

“I don’t believe this!”

“And he seems to forget that the tongue can move along any axis. After a minute or two, it’s like he’s churning butter.”

“Lies!”

“You know what?” The alicorn lowered her eyelids and stroked the back of the purple pony’s neck, their muzzles almost touching. “Who needs him? We have all we need... just the two of us.”

“I can please you in ways that only a mare can,” Twilight said in her sexiest voice.

“And I can show you love unlike anything a crass stallion could ever manage.”

“Oh Cadance!” the young unicorn cooed, “Leave him! He’s no good for you. Run away with me!”

“I’ve made a terrible mistake!” the alicorn cried. “I should’ve married you and made you my princess! Can you ever forgive me, Twilight?”

“Always, Mi Amore! I will treat you with the care and kindness you deserve!”

Shining Armor glared at them, his forelegs crossed over his chest. “I take offense to this entire display,” he deadpanned, causing the two girls to explode into a fit of laughter. He painfully bit down on his tongue to hold back the urge to join them.

“Honey,” his wife said after she calmed down somewhat, “it doesn’t help your case that you’ve just been lying there the whole time. I have been doing all the work.”

“Which is why I’ve come up with a plan!” Twilight declared proudly. “Cadance, you lie down over there...” she directed with all the authority of an All-Team Organiser.

The princess, clearly intrigued, complied and laid herself, belly-up and legs-apart, at the edge of the bed.

“Now, I’m going to be here...” The unicorn positioned between Cadance’s hind legs, muzzle within easy reach of her exposed petals. “And big brother... your free ride is over.” She looked back to him with hungry eyes, making him actually gulp at the intensity of the stare. “Mount me!” she commanded.

He all but jumped up at the invitation. His penis had been receiving some gentle magic massage to keep it erect, but after having already been in the warm embraces of his wife’s vagina and mouth, it was crying out for more. He nuzzled his sister’s mane – mimicking Cadance’s action from before – and enthusiastically entered her.

“Oooohhhh...” Twilight exhaled deeply as her body welcomed the familiar visitor. Content with the speed and strength of the stallion’s thrusts, she directed her attention to the flower before her.

For all the compliments Cadance had given her, she knew that she had been inexperienced and sloppy. The only reason the alicorn had reached orgasm so quickly was because of how riled up she had been from her earlier fornication with Shining Armor. Providing a second climax would not be so easy.

Twilight liked a challenge.

Passion and creativity. So be it. She began by running her tongue inside the supple, pink thigh, making a beeline for the princess’ wanting slit. Once she reached the perimeter, though, she detoured northward and made for an as-yet-untouched nipple, which she suckled lovingly. Cadance’s shudder told her she had done well. She repeated the actions on the other side, and was again rewarded with a gasp and a shiver from the larger mare.

She moved down to the waiting sex, nosing the labia while blowing out a soft stream of warm air. This made the recipient giggle; not exactly the desired result, but still good. Twilight proceeded up to the pony’s engorged clitoris. She played her nose against it, stimulating it with soft rubs and more air. Cadance had explicitly called this out as something she liked, and she hadn’t been lying; Twilight was barely touching her, but the sensations were driving the princess wild. Her hooves gripped at the sheets and cute little moans were escaping her lips.

Twilight’s focus was drifting, however. Shining Armor was moving in and out of her, but their earlier ribbing seemed to have gotten to him and he was determined to keep things interesting on his end as well. While his thrusts were measured, he would make a little jerk at the apex of each one, making his scrotum slap lightly against his sister’s clit as her insides hugged him tightly. At the same time, he was using his mouth to nibble on her ear, and a free forehoof was stroking all along the smaller pony’s neck and side. Twilight badly wanted to lose herself completely in the moment, but she knew she needed to concentrate.

She found that she could work more easily by synchronising her actions to his, using the pleasurable pulses in her loins as a kind of metronome. She lapped at Cadance’a swollen marehood, entering her and tasting the powerful heat within, circling around and around in time with the rhythm Shining Armor had set. She could feel the pink pony’s cunt squeezing and pulling at her, pleading her to go deeper. Her tongue could never substitute a stallion’s instrument in size, but more than made up for it in dexterity. Every millimeter of the large pony’s love received the attention it deserved, as the unicorn undertook to hit every pleasurable nerve Cadance possessed, committing to memory those that had the greatest effect.

The room filled with the aroma of sex, Shining’s and Twilight’s and Cadance’s odours mixing into an intoxicating concoction that increased their arousal in a self-reinforcing loop of indulgence. The temperature kept climbing as three bodies worked against each other with ever-increasing speed and effort. Shining, to his credit, continued to resist the urge to hump into his sister with wild abandon; both siblings had been building up to their orgasms for so long that such a lapse in discipline would end them both then and there. Cadance needed to catch up first. Judging from her ecstatic moans, it wouldn’t take very long now.

Twilight pushed forward, reacting as best she could to the demands of the pony in front of her.

Twilight pushed back, making her own wordless demands of the stallion atop her.

Her mind swam. All concept of time had evaporated; she didn’t know if the three of them had been at this for two minutes or two days. She didn’t need to plan any more; somehow she had tuned in to Cadance’s needs perfectly, moving effortlessly in, out, around, to her breasts, and back, all the while kneading her thighs and rump. Her brother’s grunts of primal pleasure told her all she needed to know, and a delectable fire was burning in her chest and between her legs. Her heart thudded in joy at the pleasure she was receiving and giving, the radiant heat from the ponies on top and underneath wrapping around her like a sun-warmed blanket.

Could she actually feel it? Or was it just an illusion? Did it even matter?

Cadance’s heartbeat, there, on her tongue. Shining Armor’s heartbeat, buried deep within her. Her own heartbeat.

All three in perfect sync.

The perfect moment.

She thought of her brother. Growing up. Sharing secrets. Practising basic magic. Practising advanced shield spells. Sharing meals. Building book forts. Learning to fly a kite. Running, racing, and him letting her win. Running, racing, and him teaching her that she can’t win every time. Making their parents mad. Making their parents laugh. Pony-back rides. Fun games, outside in the daytime. Secret, naughty games, inside at night. Hugging. Kissing. Touching. Sex.

She thought of her foalsitter. Walks in the park. Games in the playground. Songs and rhymes. Bedtime stories. Staying up late, and never telling the parents. Extra servings of ice cream, and never telling the parents. Walks around Canterlot. Shopping. Decorating each other’s manes. Talking about school. Talking about boys. Bathtimes. Sleepovers. Pony-back flights. Scrapes and bruises and tears. Hugs and kisses and laughs. Learning about romance. Learning about estrus.

The two ponies she cared for the most. Her oldest friends. She was so close to them now. This was exactly where she belonged. There were no barriers between them. All the walls had crumbled. She trusted them absolutely. There were no more secrets and no shame and no more holding back. There was only joy and pleasure and melting bodies and sharing everything. She felt good and safe and warm and happy and wanted and sexy and loved, loved, loved.

They were all at the edge now. The heat could not get more intense. Twilight felt like she was burning up; a phoenix ready for rebirth. Deep within her, she felt her brother’s cock flare, and she knew that, for him, there was no going back. Without a second thought, she gladly followed him off the precipice.

Shining Armor exploded inside her, positively gushing forth his hot seed, filling every crevice and void within his sibling that his stallionhood had somehow failed to touch. Twilight could not have stopped her response if she had tried. She didn’t try; instead she surrendered herself to the crashing wave of red-hot bliss, gladly drowning in it. Her cunt squeezed and milked the stallion for all he was worth as she spasmed and writhed under him.

Her last coherent action was to suckle on Cadance’s clit, as she had before, but she lost awareness of what happened after that. Had her faculties not abandoned her, she might have drawn the correct conclusion from the spray of liquid suddenly filling her mouth; as it was, she was only aware on the most instinctive level that she was drinking something sweet and warm, and hearing a female voice screaming her name.

It took an eternity, but the thought did eventually form: She had received something precious from her brother, and passed in onto Cadance. She was their connection; they had communicated through her, and it was so appropriate. They had met because of her; fallen in love because of her. She was their link, both conceptually, and in this moment of passion, physically.

And she could not be happier.

Her consciousness rebuilt itself. Twilight noticed that she still had her mouth pressed against Cadance’s spent sex. She took a few licks to clean up the overflow, and laid her head on the alicorn’s belly, where she could easily perceive her heavy breathing. Shining Armor had collapsed beside them, and one of his forelegs was draped over his sister’s back and one of his wife’s hind legs. His eyes were closed, but he was apparently not asleep; he reached out with his muzzle and kissed the closest thing to him – which happened to be Cadance’s cutie mark. She sighed dreamily.

Twilight was the first to speak. “Wow.”

“Yeah,” her brother replied.

Both looked up to the pink pony princess. There was a pause where nothing that could be said seemed appropriate. Twilight frowned, and scooched up to face the alicorn at-level. Shining followed, spooning her from behind. Cadance rolled onto her side, and embraced the purple unicorn. For a long time, the three ponies lay there, cooling off from their exertion.

The silence was interrupted by the voices of two mares speaking in unison.

“I love you, Twilight,” said Cadance.

“I love you, Cadance,” said Twilight.

For a few seconds, all was again quiet.

Shining Armor frowned. “What am I? Diced tomatoes?”