How to Discipline Your Little Sister

Princess Mi Amore Cadenza stands on her bedroom’s balcony and watches the approaching train carrying her little sister-in-law. Has it been a year already? Oh, sure, it hasn’t been a year since seeing Twilight. Only a few months, at most, and if they lived closer they’d see each other far more frequently. But it has been a year since Shining’s last birthday, and she can’t help but worry that this year’s may wind up like last year’s: tense, uncomfortable, and awkward. And Cadance is tired of awkward. She needs to clear the air with Twilight.

Her Steward, an older, wiser Unicorn stallion, knocks and enters. “Princess Sparkle’s train will arrive at the station soon, Princess. Prince Armor is waiting downstairs.” When she doesn’t reply he prompts, “Princess?”

She sighs, “I suppose there’s no sense delaying.”

“Pardon?”

“Family.” She turns and looks over her shoulder at him, gives him a smile. “You know how it is.”

He steps up beside her and sighs. “I do. I have four younger siblings and almost a dozen nieces and nephews.” Steward reaches out and trails his hoof over her newly pregnant belly. “There is no lighter feeling than returning to work after the holidays.”

She smiles. “It doesn’t hurt that you enjoy your work so much. You need more responsibility.”

Steward traces little circles and hums. “Dealing with you is more than enough responsibility, Princess.”

“Hmm. You may be right. Perhaps I should find another assistant? If you’re having trouble performing your duties.”

He’s worked for Cadance for almost a year, now, and knows better than to take the bait. “I agree. Two of us would satisfy your many eccentric needs better than one, Princess.”

She exhales, imagining the possibilities. Two Stewards? At once? She can barely handle one of him.

Especially when her Steward nuzzles her, breathes on her neck. He murmurs, “I thought you were fond of the young Princess.”

“I was. I am! I’ve known her since she was a foal. It’s just difficult, now.” She shrugs. “Let’s go, Steward,” she says. “Twilight—Mmmph!”

Steward presses his lips to hers when her mouth is open wide, then steps forward and pushes her backwards and off balance. His face is warm, his lips are hot, and his tongue is wet. She rolls her eyes, relents, and lets his tongue press between her lips. She’ll never admit it but she likes kissing him. Steward is like her favorite desserts: decadent, forbidden, and delicious.

She gently bites his tongue then pushes him back, puts a hoof on his nose to hold him at bay. He’s in a mood, and she doesn’t have the time to manage him right now. “Steward,” she chastises. “You just said we had to go.”

“I said the Princess’s train will be arriving soon, Princess,” he says, looking from her eyes to her hoof. “You could always fly, if you felt rushed.” He reaches for her hoof and kisses it, runs his tongue over it.

Cadance lets him slobber over her hoof only for a few seconds. “And leave Shining? Make him walk alone? Please.” She walks toward the door, fully intent on finding her husband and not at all hoping for Steward to grab her tail and yank her back—“Steward! My husband is waiting.”

He drops her tail and squeezes her flank, then slides his hoof down her cutie mark.

She shudders under his touch. Oh, she really shouldn’t. Twilight will be nervous already, and arriving to find nopony there to greet her won’t help. And Shining is waiting downstairs, supposedly. He hates being late, just as much as his sister does. What if he comes looking for them?

Steward steps behind her and reaches between her thighs, touches her cunt.

“Steward!”

“Princess . . . ”

When he presses his face into her ass and licks up her cunt she groans, spreads her legs, and tilts her hips. His tongue slides up and down her pussy, sending little tingles and heavy shocks through her body. He’ll taste how wet she’s getting; she can already feel her juices dripping down her slit. His heavy breathing reminds her just how freaky he is, how possessed he gets when it comes to her body. She’s not the only one he fucks—some of her younger staff get tongue-tied and clumsy when he walks by—but Cadance knows how desperate she makes him.

Fuck it. Twilight can wait. Cadance is in no hurry to let Twilight make things uncomfortable. Shining will pace patiently, like he always does. And she loves dessert. Especially dessert that makes her sweat and sends her heart racing. Dessert that she could get in trouble just for eating. Dessert she already had for breakfast.

“Steward—mmm . . . ” she moans, curving her back and staring at the horizon. Her balcony overlooks the rest of her little kingdom, and she can see the little train slowly making its way to the train station. Now she’s definitely going to be late. And there’s so much open sky. Oh, fuck. The sky is full of Pegasi going about their days. Anypony curious enough could watch the Princess get fucked by a stallion who is definitely not her husband. That’s what Steward is going to do, she knows—she gasps, quivers when he slides his tongue up to poke at her asshole—he’s going to fuck her, and he probably won’t be too upset if they’re spotted. He might even enjoy getting caught. She has to stop him.

“Steward!” she tries again.

With his face buried in her ass it’s hard to hear his reply, but he manages to mumble, “Yes, Princess?”

“Stop screwing around and fuck me,” she growls over her shoulder.

He shakes his head. “Apologies, Princess, but there isn’t enough time. Princess Sparkle’s train will arrive—” He pauses to bite her ass, eliciting a yelp and probably leaving a mark. “—in a few minutes. And Prince Armor—” He slides his tongue up her slit. “—is waiting downstairs.”

Cadance has to uncross her eyes before she can reply. “Steward—”

Steward shoves at her backside, knocking her face against the transparent railing and forcing the breath from her lungs.

“—Oof!”

She struggles against the crystal and pulls herself up onto the railing. Steward slides his face up through her tail, leans forward to nibble on one of her wing bones, and pulls at her hips. His stomach settles on her back, and his cock slaps up underneath her, teasing at her abdomen.

“Uh . . . Oh, fuck,” she drawls. He’s so big she thinks she could just dip her head down and lick the tip.

His hooves scrape at her cutie marks, holding her still, and he grinds his Princess-piercing prick against her crotch, slicking himself up on her juices. Getting ready to bludgeon her insides.

Fuck! “What are you waiting for?” she pants.

“For you to beg, Princess,” he says, pulling back and using his magic to guide the tip of his cock to her cunt.

She thrusts her hips backward, trying to impale herself, but he holds her still, leans back as she does to negate her motion. “Fuck you, Steward,” she huffs, stomping at the floor. He’s so close. She’s so close!

He hmms, gripping her so hard he’s going to bruise her. His disgusting, base animal desires are wafting off of him like a potent cologne, so thick she can nearly taste his need. She can certainly smell her own musk. Any normal stallion would be a stammering, quivering mess, but not Steward. How he keeps his composure when they both want it so badly is beyond her.

She snarls. How fucking dare he. She’s his Princess. He lives to worship her. To serve her. To—

“Beg for it,” he growls into her ear. “Or I’ll find some other Princess to fuck.”

She gasps. Twilight would let him, too. Like Cadance, Twilight makes bad decisions and can’t resist letting older stallions take advantage of her. Oh, fuck. Fuck! “Please, Steward, I need—Ah!”

Steward growls and pulls her hips onto his, thrusts his cock up inside her.

It’s just what she needs. She throws her head back, comes with a bang and a keening cry that she’s sure Shining can hear from the atrium. Juices squirt out from her pussy, slicking his cock and thighs and dripping onto the floor between his hooves. Steward barely pauses as she clenches around his cock, just shifts his weight to keep atop her and shoves inside her again.

“F—fuck,” she pants, gripping the railing for balance, and glances downwards. With his weight atop her and her chest atop the railing she’s sure the two of them are visible from the ground. Just like when she gives a royal speech to her citizens, only instead of a speech it’s a very visible demonstration of how she can’t control herself around this stallion.

Steward slams his chest onto her back and shoves her forward. He’s so frantic, so erratic, his hindhooves shoving at the floor and his forehooves gripping her barrel. He fucks like an animal, and all the Princess can do is hold on as he uses her. He grips her flank and pulls her back. His cock is so hard, it’s splitting her apart. She can’t get enough of it. Can’t get enough of him. Steward does what Shining won’t. He has no inhibitions, no reservations, and only pretends to act professional. She can’t say no, even as he crosses line after line—

“Tell me more,” Steward grunts, breathing into her mane, “about the Princess.”

This would be the first time Steward meets Twilight, and from his tone Cadance thinks he ought not to meet her. “No, Steward. No. Even if she’s beautiful. And young. And—mmm—so vulnerable.”

“Do you think she would be upset if I put a little Prince inside her, tonight?”

She shudders. A pregnant Twilight—with some strange Unicorn’s magic buried in her womb—“You can forget about that,” she pants, shoving herself back at him, desperate to rediscover that high. “Twilight trusts me. She wouldn’t visit if she thought for a second I’d let a brute like you near her. I’ll keep her locked up if I have to. You’ll just have to make do with me tonight.”

“You’ll be too busy,” Steward says. His thrusting is getting more and more erratic. He’s close. So is she. “Or are you planning. On leaving your husband. To his own devices tonight?”

It’s Shining’s birthday, but—“I’ll make it up to him!” she gasps.

“Why not let—” he grunts “—Prince Armor watch me fuck you instead?”

“Fuck!” she snarls, feeling a guilty rush at his words.

“Or watch me. Fuck. His baby sister? He’s too polite. To say no,” he pants, his breathing short and staccato. “Do you think. He’ll be quiet. And watch. And wait. His—turn—Ah!”

Steward snarls and yanks her back, pulls hard on her hair, and comes deep inside her. His cum sizzles and tingles with potent magic, not as thick as what some of her Earth Pony stallion Guards can produce but far hotter and stickier. He doesn’t stop thrusting, just keeps coming, again and again. Every drop of his cum floods deep inside her, even if most of it splashes out with each thrust. It bursts out of her cunt and splatters across his thighs and onto the floor below. One of her maids is gonna have to clean it, and she’ll know exactly what happened—

Fuck! She shudders, coming again. Her legs jerk so suddenly he almost falls over. Her cunt spasms around his cock, trying to squeeze more and more out of it. She grips the railing and whines, knowing that somepony could be watching right now.

Steward grips her barrel and holds himself as deep as he can as his orgasm slows to a trickle, before pulling his cock free. She feels their potent mix of juices and cum drain down her inner thighs, hears it splatter over the crystal floor.

“Good Princess,” he pants, stepping his forehooves onto her back and grinding his cummy dick against her dock. “Do you feel better?”

She gulps and nods.

He grips her rump and humps at her backside. For an agonizing few moments she hopes he’s going to keep fucking her. “Tonight, Princess, you’re going to take me to the young Princess, and you’re going to watch me put a Prince or two inside her.”

Cadance gasps and arches her back, as he wipes his softening dick on her rump, using her ass like a cum rag.

“Understood?” he grunts, spilling the last few squirts of his cum over her cutie mark.

Absolutely not. “Yes,” she whispers.

“Good.” He leans forward and gives a long lick up her horn, whispers, “I love you, my Princess,” then climbs off her back and steps to the side.

Cadance collapses onto the railing, huffing for breath, shaking. Only a few short minutes ago she was calm, collected. Now her heart is racing. She can already feel sweat evaporating off her body. She clutches the railing for balance until her breathing slows, and lowers herself onto trembling legs. Between her hindlegs the pool of cum sizzles and crackles with magic. It’ll be a while before it cools and dries. Predictable.

“That’s . . . ” she pants. “That’s just great. Now we’re going to be late, Steward.”

He shakes his head. “No, Princess. We’ll be right on time.” He frowns and looks towards the door. “Though Prince Armor has been waiting for several minutes now.”

“Ugh. I feel disgusting,” she lies, slowly catching her breath. In truth her body is flush with hormones and guilt. She knows better. And if Shining ever finds out—Cadance rounds on him, looms over him, and glares. “Steward! If you don’t stop your incessant harassment I will fire you!”

“Apologies, Princess,” he says, clearly not sorry in the slightest.

“Uh huh,” Cadance huffs. Some days . . . “Come, Steward. Let’s go find my husband before he wears a hole in the atrium.”

Outside her room a pair of Castle Guards fall in behind her. No doubt they heard everything through the door. She can feel their heavy stares. She can also feel a thick, heavy creampie running down her inner thighs as she walks. But neither of them say anything—they wouldn’t stay employed in her service otherwise—and by the time she and Steward arrive in the atrium Steward’s cum has mostly dripped down her legs and soaked into her coat. So long as she keeps her tail down and faces him she’ll be fine.

Shining hears their approach, stops pacing, and exclaims, “There you are! Steward, you need to be firmer with her.”

“Yes, Prince.”

“Oh, Shiny. Relax,” she laughs, prancing up to place a kiss on his cheek. “There’s still time. Don’t worry. Twilight won’t be going anywhere.” She bumps her flank against his and shares a wink, and the two walk outside towards the station, leaning against one another, their tails twinned and enough love bouncing between them to give other ponies a toothache. Steward takes up his usual position to the rear. His threats are heavy on her mind. Cadance cannot under any circumstance let Steward and Twilight be alone together. No matter how Princess Twilight gets on her nerves these days. No matter that Cadance can’t seem to say no to Steward, especially when saying yes is so addictive.

And there’s not much time left to dwell on it. Steward’s distraction has helped a little. But now there’s nothing but a few minutes and half a kilometer standing between Cadance and Twilight.

She misses Twilight dearly. Her fondest, happiest memories are of raising the young Unicorn and watching her grow into a beautiful young mare. Twilight means the world to her, and as a Princess she’s going to usher in a new era of enlightenment and ponyship. It’s hard not to be proud of her.

But boundaries need to be set, and if that slut tries to seduce her husband again there will be consequences.

A burst of steam obscures the carriage door, and Cadance sees her, all purple and cute and worried. Twilight scans the platform so frantically that she looks right past Cadance and Shining Armor. She’s wondering, maybe she’s late? Did she miss them? Why didn’t the train staff let her out earlier? Silly Twilight: always imagining the worst and ignoring what’s—rather, who’s right in front of her. Shining nudges Cadance and nods at his sister, and the two share a grin. Cadance slides between other ponies and sneaks up behind Twilight to sweep her into a hug.

“Ack! Stop!” Twilight yelps before she knows what’s happening. Her shocked struggling almost topples them both over. “Cadance!” she laughs.

Cadance puts her down and pulls her into a more stable hug. Just the feel, the scent of her evokes strong memories. In an instant Cadance is brought back to a time when Twilight was smarter than every other pony in the room but still afraid of the dark, a precocious little filly who didn’t stop until she got to the bottom of the matter. Cadance loves this filly. They grew up together, learned about magic and love together, and teased Shining together.

Then Twilight’s wings wrap around hers and she kisses her cheek. Twilight’s grown up, and everytime they meet Cadance is reminded of it. She can sense a mature complexity to Twilight’s feelings that wasn’t there even as recently as her last visit.

“I missed you, Cadey-bug,” Twilight says, while still cocooned by a wall of pink and purple feathers. She squeezes tight before letting go.

Cadance smiles and nuzzles her. “I missed you too, Little Shake—but not as much as a certain older brother.”

Shining Armor steps out from behind Cadance.

“Hey, Twily,” he says, nervously reaching up to scratch the back of his neck. Cadance wonders if last year’s birthday is at the front of his mind, too.

Twilight’s eyes light up and her smile grows even bigger, and she leaps at her brother. “Shiny!” This time she does topple, taking Shining with her and landing in a heap on the platform, surrounded by their escort and the other passengers milling around.

“Twilight—Can’t—urp—can’t breathe!”

Twilight laughs and squeezes her brother tighter. “Don’t care. Missed you too much. Happy birthday!”

Cadance snorts, watching her husband suffocate. It’s times like this that she wonders if she’s misjudged Twilight. Twilight can’t hide her emotions from Cadance, after all. She may be all over him, squeezing as close as lovers could, but her love for Shining is honest and innocent. Cadance needs to stop being so paranoid.

Shining’s ignites his horn and grabs her in a warm pink glow, lifts her off the ground and safely out of reach. “Okay, Twilight. You know, if you kill me it’ll no longer be my birthday, and you’ll have to turn around and go right home.”

Twilight hangs in midair, reaching fruitlessly and scowling. “Put me down!” she pouts. “I am a Princess of Equestria and you will—”

“Aww. Look, dear. She gets so cute when she’s angry,” Shining teases, standing and regaining his usual royal poise.

“Everypony’s watching!”

“Really? I hadn’t noticed.”

Twilight ignites her own horn and prepares to do battle.

Cadance hides her smirk behind her hoof.

An Earth Pony stallion dressed in purple armor steps off the train behind his Princess. Twilight is notorious for dismissing her Castle Guard as unnecessary, and it looks like today’s concession is a single Guard whom she has forgotten in her excitement. Like his ward, this stallion’s emotions are all too easy to read. Cadance gasps. Little Twily has taken a consort? She is growing up.

“Twilight. Aren’t you going to introduce us?” Cadance asks with an innocent smile, and points at Twilight’s Guard.

Suspended in mid-air, Twilight follows her hoof and looks at the Guard. Frowns in confusion. “Him? Oh.” She scowls. “My Castle Guard-captain says I need an escort, now that I’m a Princess.” And that’s it.

That’s it?

No blush? No confession of illicit love or sordid sex? Cadance clicks her tongue. Her magic is as precise and accurate as ever. She knows she’s not wrong. They’ve definitely fucked. Recently. And the young Unicorn Cadance helped raise should be a stammering, blushing mess at even the implication of romance. She’s definitely grown up.

“I—I see,” Cadance says, as Twilight turns back to Shining.

Deciding that Twilight wouldn’t try anything with Shining in public, Cadance lets them get reacquainted and walks up to the Guard.

“Hello, my little pony. I am Princess Cadance, and I welcome you to the Crystal Kingdom.”

The Guard bows. When he speaks, his voice is low and pleasantly chocolatey. “Thank you, Your Highness. My name is Flamingo, and I am at your service.”

“I apologize for my little sister’s attitude. I can tell she’s reassured having you around, Sir Flamingo.”

Sir Flamingo rises. “Thank you, Your Highness. But, respectfully, I must disagree. Her Highness couldn’t care less. She is more than capable of protecting us both without batting an eyelash. I’m pretty sure she considers me little more than furniture.” He shrugs, not an easy thing to do under so much armor. “I take no offense in the matter.”

“Goodness. Does she treat you poorly?”

Sir Flamingo shakes his head, and walks up beside her to watch his own Princess. “We get along fine,” he finally says: not exactly a denial. He smiles at some memory to which Cadance isn’t privy. Oh, yes. They fuck.

As he watches Twilight and relives some salacious memory, she takes him in. Though his armor is designed to make any pony look intimidating and authoritative, this one in particular looks very strapping. Strong, broad chest. The posture and balance of a stallion ready for anything. A chiseled jawline. Oozing maleness. Twilight has very good taste. And aside from the armor and attitude, Cadance reluctantly admits, Sir Flamingo looks nothing like her brother.

“Well,” Cadance says slowly, circling him. Most stallions would feel a little apprehensive or predated, but when Sir Flamingo notices he instead poses for her, letting her get a good look. Maybe he’s used to being eyebanged by Princesses. “She’s lucky to have you, even if she doesn’t recognize it.”

“Thank you, Your highness.”

Cadance giggles. “Oh, but you are a gentlestallion, Sir Flamingo.” Cadance turns and looks at her castle in the distance, casually putting herself right in front of him. Is he glancing at her rump? She flicks her tail and tries not to peek. “Very refreshing. Most of my Guards are brutes and bullies.”

“But I am a brute, Your Highness.” A hoof lands on her rump. Cadance squeaks and looks over her shoulder. Sir Flamingo strokes her cutie mark and then pulls her tail, still watching Twilight. “All of Her Highness’s Guards are.”

Cadance glances around the platform. Most of the onlookers are focused on the visiting Princess and the magic she and Shiny are exchanging. Nopony’s really watching Twilight’s Guard grope Cadance, but that could change at any moment, and she’d prefer not to make a scene. “Sir Flamingo, we are in public,” she scolds lightly, as his hoof travels over her rump and between her legs. “And I am married!”

“Would you like me to stop?”

“Sir Flamingo . . . ” she growls, arching her backside at him.

“I will permit you to discipline me.”

“Stop,” she says, finally.

“Yes, Your Highness.” He drags his hoof over her cunt and gives her a flank a final squeeze. “I look forward to getting to know you better.”

Cadance steps away from him, flicking her gaze across the crowd. There are only two ponies who she really worries might have seen her indiscretion. But Shining is clearly distracted, and Steward is watching Twilight with a mixture of hunger and worship.

Cadance glares back at Sir Flamingo. He smiles gently. Like all accomplished Guards, he’s very good at looking disinterested and professional, but she can sense the cocky smirk fighting to come out. Such arrogance. He thinks he can just grope the royal hindquarters and get away with it. He thinks she won’t fight back. Unfortunately, she’ll be busy, since her kingdom doesn’t stop for a pony’s birthday, and he’ll be occupied for the whole visit, on-shift until he returns his Princess home safely. And unless Cadance is very mistaken, he’s Twilight’s lover. And she has her own husband to think about. So, no. She won’t reciprocate. But that doesn’t mean she can’t fight back.

Hmph. She turns and walks back to her family, feeling his eyes on her.

Shining is just setting his exasperated sister on the platform. She’s growling, he’s smiling. Sibling love.

“Alright, you two. Unless you want to spend his birthday weekend on the train platform—”

“We should just send her back,” Shining offers lightly. “She’s too much trouble.”

“Hey!” Twilight says. “I’ll behave. Besides,” she says, sidling up to Cadance. “I’m not necessarily here to see you, Shining.”

Cadance covers her smile with a hoof. “Oh, dear, Shiny. It appears you have a rival for my affection.” She arches her wing over Twilight’s back and squeezes gently.

“Mmm-hmm. Oh, I’ve felt this way for so long.”

“If only you’d told me sooner!”

“Do you have a spare bed, Cadance? For Shining to sleep in? Since we’ll be far too busy tonight.”

“I’m sure we can think of something.”

They break into giggles.

Shining hmphs and cocks an eyebrow. “While you two love birds are getting reacquainted, I’ll be in the Castle. Alone.”

“Oh, Shining, don’t pout. Just because your little sister is prettier than you.”

Twilight sticks out her tongue at Shining.

Shining rolls his eyes and turns back to the castle, leading a pair of giggling mares and their escort. This is what she misses. Twilight and Cadance, getting into trouble together. Having fun. Growing up. Now they’re both as grown up as they’ll ever be, and they each have their own responsibilities to deal with. But they can still get into trouble, if they want.

“So,” Shining begins, in that tone that says he’s just making innocent conversation and absolutely not trying to start something with his little sister. “I hear you have been seeing a stallion.”

Cadance cocks an eyebrow.

“What? That’s—I mean—” Twilight splutters. She looks at their escort, then the nearby crowd, but nopony except the three of them—and Sir Flamingo, and Steward, and Cadance’s own Guards, of course—are within earshot.

Cadance smirks. Twilight might have been able to lie about her relationship with Sir Flamingo to Cadance, but she can’t lie to her brother.

“ . . . Yeah. I’m . . . I’m seeing somepony.”

Cadance gasps. “Little Shake! You’re dating somepony and you didn’t think to tell me?”

“We’re not dating!” Twilight exclaims. “We’re just . . . you know . . . ” Twilight sighs in defeat. “ . . . going on dates. Only a couple!”

“Tell me,” Cadance insists.

Shining asks, “What’s his name? What is he like?” He tries to scowl, but doesn’t quite pull it off, not with a smile on his face. “Do I have to have a talk with him?”

Cadance glances back at Sir Flamingo, but the stallion is doing his best to look like any other Castle Guard: alert but ignorant of their conversation.

His name is Flamingo, and he’s really, really hot.

Twilight shrugs. “His name is Spirit. He’s . . . nice.”

Cadance whips her head around and stares at Twilight. It’s only years of practice emulating Princess Celestia that keep Cadance from stumbling as they walk. Spirit?

Who the fuck is Spirit?

Twilight winces and looks away. “It’s not very serious. We only just started . . . not-dating. He’s a Pegasus, actually, and he moved to Ponyville only a few months ago . . . ”

Here Twilight switches from being too embarrassed to say anything to being too embarrassed to let either of them say anything back. They can’t chastise her if they cannot get a word in. It’s a typical Unicorn Twilight tactic that has followed her into Alicornhood. Without making eye contact with either of them she starts going on and on about this Spirit pony, talking about how they met—He fell from the sky, actually—and what he’s like—He’s a Pegasus stallion, he likes astronomy, and he’s kinda funny, but also kinda dorky—and what he’s like in bed—Oops, did she say that? Well, she is an adult, so of course she, you know. Because he’s really strong, and sweet, and he can be a little mean when she wants him to, and, uh, anyways—so Cadance only half listens, sure that she’ll have plenty of opportunity for extracting more delicious gossipy details later this evening. All this is diluted, to an extent. Cadance will get the juice right from the source. She has so many questions.

Only two things are certain. Firstly, Twilight is absolutely fucking Sir Flamingo. Even if her sexth sense were wrong, he all but admitted it. If she’s dating somepony else, then that gossip will be tasty no matter how it resolves. And secondly, Twilight has finally found a source of romance other than her brother. Though she denies it and downplays it and shrugs it off as not-dating, Twilight’s clearly smitten with this stallion.

It’s the blush. The way her eyes smile, sort of. And the way that she hasn’t stopped chattering about him for several minutes yet.

“What does he do?” Shining asks, breaking her train.

“Oh, uh.” Twilight looks away. “He’s one of my Castle Guards.”

Cadance glances back at Sir Flamingo. Is Spirit her nickname for Sir Flamingo? When Twilight says he’s a Pegasus, is that a secret code for mare-plowing thoroughbred Earth Pony?

Shining shakes his head. “Oh, Twilight. That’s really not a great idea.”

Twilight scowls. “I knew you’d say that. That’s why I didn’t want to make a big deal about it.”

“I know you like him, and he sounds sweet, but it’s not very responsible for a pony in a position of—”

“Well, who else am I supposed to date?” Twilight asks, suddenly, nostrils flaring. She stomps the flagstones beneath her hooves. “There are no Princes in Ponyville, you know. I’m in a position of authority over every pony, you know. Not everypony gets to fall in love with their childhood sweetheart—”

“You know,” Cadance says, trying to ease some tension before somepony gets her feelings hurt. “I’m technically in a position of power over you, mister.” She pokes Shining in the rump. “Our marriage is irresponsible. Should we be keeping our illegal, scandalous relationship . . . secret?” she whispers with a smirk.

Shining gulps. “Well. Um.” He takes a slow breath and smiles gently. Apologetically. “Okay. I get it. Just . . . be careful, okay?”

Twilight rolls her eyes and resumes walking toward the palace, muttering to herself, “It’s nothing serious.”

Shining wisely lets her get a couple steps ahead, but Cadance hurries to keep up.

“You might have fooled Shining, Twilight, but I want details.” Before Twilight can protest, Cadance nods her head behind them at her personal Guard. “I expect some scandalous stories later, when we’ve got some privacy.”

Twilight doesn’t bother trying to deny anything. Instead she takes a breath and says, “Actually, Cadance . . . Speaking of privacy, can—” Twilight pauses and frowns. “Can I have some time with my brother? In private? Maybe after dinner.”

Cadance slows to a stop. She doesn’t even have to run the numbers. She already knows she’s going to let Twilight try whatever she wants with Shining. If Cadance says no, Twilight will ask why not, and then the whole thing will come out into the open, and Cadance really hopes it won’t come to that.

She glances over her shoulder. Steward is standing behind them, at a polite distance, expressionless. She hopes it won’t come to him, either.

“Er—if you’re rather not, that’s fine,” Twilight says. “I don’t want to—”

“It’s okay,” Cadance reassures her with a smile. She loves Twilight. She really does. Twilight has another stallion to long for, now. And she trusts her husband. He quite naturally doesn’t feel that way for his little sister. Not like he used to. Nothing’s going to happen. “Please be nice. He’d come and visit more frequently if he had the time. It’s not his fault.”

“That’s not—Well. Thanks.”

Cadance leans close and kisses Twilight’s forehead, just like she did when a much younger Twilight was distressed. It always calmed her down, but today it doesn’t. “But first,” Cadance says, trying to lighten the mood, “dinner. And then cakes.”

Twilight perks up. “Yay!”

Dinner is delicious, and so are the cakes. Twilight is as friendly and cheerful as ever. She jokes with Shining and Cadance, gossips about Ponyville, and listens intently when Shining and Cadance share their hard-earned wisdom from being married. Twilight reveals his birthday present, an interesting-looking book on military history that Shining hasn’t read before. It’s all very nice and uneventful. Cadance is content to let them carry the evening and focus on one another.

So while Twilight and Shining are catching up, she tries to decipher Sir Flamingo and his relationship with Twilight. At the start of the meal he took his position near the entrance, his attention flicking from Twilight to her brother to the exits and back, and hasn’t moved since. As far as Cadance can tell, Twilight never once even glances in the direction of her Guard. He was right. Twilight barely notices him. And Twilight has a special somepony back in Ponyville. Curious.

When Cadance looks back she notes with a start that Sir Flamingo is watching her. Rather than look away like any normal pony, he holds her gaze, and Cadance is surprised to find herself looking away first. No one else sees, thankfully. Throughout the rest of the evening Cadance finds herself glancing at him again and again, but never catches him looking back.

“It’s so nice here,” Twilight is saying. “Somehow you’ve made a crystal castle feel—I dunno. Cozy?” She sighs. “My castle still feels cold sometimes.”

“Are you sure you can’t stay longer, Twily?” Shining asks.

“I really can’t,” Twilight says. “There’s this filly living at the castle right now. I’m supposed to be figuring out a life for her, or something. I really don’t think I should leave her in the barracks any longer. I’ve been hearing unsettling rumors. Hey—” she says, spearing a forkful of cake and pointing it at them, “you guys don’t want a filly, do you?”

Shining coughs and sets down his fork before he can drop it.

Cadance catches his eye and says, “Do you wanna?”

He shakes his head. “You’re the mother.”

Twilight perks up, her mouth full of cake. “Mmrr?”

Cadance smiles at Twilight. “Shining and I are having a baby. We’ll have our own filly.”

Twilight’s eyes bulge for a second, and her magic fizzles, dropping her fork. “Rry?” she asks.

Shining blushes and rubs the back of his neck, but he’s got a goofy smile on his face. He nods.

Twilight gasps and chokes on her cake.

“Twilight!” Cadance exclaims, jumping out of her chair.

Twilight thwacks herself in the chest, coughs cake crumbs everywhere, waves off her Guard, inhales again, coughs again, then squeals, “You’re having a baby! Cadey! Ahhh!” Twilight scrambles from her chair and throws herself at Shining and Cadance. The three of them topple into a pile of limbs and wings and chairs.

“I’m gonna be an aunt! I’m gonna have a niece! You’re gonna have a baby!” Twilight sings, squeezing them both. “Oh, sweet Celestia! Congratulations!”

“Twilight—” Shining gasps.

“Can’t—urp—can’t breathe!” Cadance wheezes.

Twilight gasps and lets go, leaps back. “Oh! I’m so sorry. Did I hurt you? Oh! You have to be more careful! What are you doing out and about? Shining!” she scolds. “Why are you letting her out of bed? You should be waiting on her at all times!”

“I already do, basically,” Shining grumbles.

Cadance climbs to her hooves and dusts herself off. “It’s okay, Twilight. I’m not that fragile. And I don’t need to be waited on.”

“Oh, right. Of course not.” Twilight dances anxiously from hoof to hoof then rushes up to Cadance’s side and asks, breathlessly, “Can I feel?”

“Sure.”

Twilight hovers her hoof over Cadance’s belly, hesitates, and carefully touches her. After a few moments she frowns. “I don’t feel anything,” Twilight says, quietly. “What does that mean? Is something wrong?”

“It’s far too soon for that, Little Shake,” Cadance says. “Right now you’re just groping me. Try again in a few months.” She tousles Twilight’s mane a little and smiles. Sometimes Cadance forgets how young Twilight still is.

“Oh.” A pause. Twilight pulls her hoof back and scratches the back of her neck. “I, uh, I guess I don’t really know that much about . . . all of that.” She looks at the ground. “I’ve never really thought about it.”

“Not even with your Pegasus friend back home?” Shining asks.

Twilight sputters and stammers, “Well—That’s just—You see—”

Shining laughs.

Twilight rights her chair and sits with a thump. “Wow. A baby. You’re going to be parents. That’s—it’s so—”

“Wonderful?” Shining prompts, beaming.

“Yeah. Wonderful.”

Cadance doesn’t need her magic to feel the clouds settling over Twilight’s mood, now that reality starts setting in. A baby is a milestone, and Twilight is still miles away, even if this Spirit stallion winds up being the one. Never mind that Twilight’s far too young to be worrying about foals. Cadance can see the spiral starting. But before she can say anything, Shining steps up to Twilight and puts a hoof on her shoulder.

“Twilight, it’s okay. There’s no rush, you know.”

Twilight looks up at him, blinks, then looks at her lap, rubbing her hooves. “W—well,” she stammers. “Congratulations. I love you guys. And I can’t wait to meet your little foal.”

“Neither can we,” Shining says.

“Thank you, Twilight,” Cadance says, plastering a smile on her face.

Twilight mirrors it.

Shining grins like an idiot.

Twilight takes another deep breath. Any hope that Twilight would give up her incestuous pursuits upon hearing of her impending aunthood is quickly dashed. Avoiding eye contact with Cadance, she casually asks Shining if they can chat a little, in private.

That was an hour ago, and Shiny still hasn’t returned.

Now, in her bedroom, lying on her side, Cadance has since spent most of her time staring at the wall, trying not to imagine just what Twilight wants to talk to Shining about—what she wants to do with Shining. Twilight is tenacious and doesn’t give up without a fight. It doesn’t help that Shining Armor can’t easily say no to his sister. And Cadance is cursed with an imagination that often gets away from her:

“Shining . . . I can’t help how I feel. I need you. Please. Just this once. She doesn’t need to know.”

Twilight is growing like all Alicorns do, but for now she’s still smaller than her brother. Still cute and vulnerable, as much a filly as she is a mare. He can envelope her like a lover, even if she’s the one in charge. And Shining is a beast when he is aroused.

“Yes . . . Fuck me, big brother . . . Love me . . . ”

Cadance shivers. Shining Armor could destroy the young filly that Cadance remembers, when he had the chance and was properly motivated. Now? Twilight is more sophisticated and complex. Twilight knows how to manipulate Shiny and would push him to his limits to get what she wants. It doesn’t hurt that the cheating slut is incredibly sexual. Nubile. Forbidden.

“Twily! I’m gonna—I’m gonna come!”

Cadance touches her face, imagining an older brother covering a younger sister’s face in incestuous spunk and that face smiling back with adoration and worship.

And they’ve been alone for an hour now, doing Celestia knows what—

“Stop it,” Cadance mutters, trying to break her train of thought. She trusts Twilight. Shining won’t let anything happen. The only time a mare came close to stealing him away was when that horrible bug hypnotized him.

She rolls onto her back and slides a hoof down her stomach.

And Twilight, regardless of her potential flaws, is not out to take over the world or harm either of them. She’s just here to fuck him, over and over, until they’re both sweaty piles of drool and feathers and cum—

“Do you want me to put some foals in her?”

Oh, but she does. Steward knows her too well, knows just what to say. Twilight would never know who the father was. For all that he says he dislikes family, Cadance is sure Steward has sired some children here and there, children that he hasn’t mentioned or cared for or fathered in the least. It would explain the occasional young female staff leaving Cadance’s employment unexpectedly. He’d leave a foal in there, like a cuckoo, letting Twilight and her special somepony raise it. Twilight will be a little baby crazy for the rest of the night, after learning about Cadance’s little filly. Steward would have no problem.

“I will allow you to discipline me, Your Highness.”

“Stop it!” she barks into the empty room.

Panting, Cadance looks at her hoof. It’s gleaming and shiny with wetness.

The problem with being the Princess of Love, she decides, is that she cannot turn it off. She needs a break. She needs to distract herself. There is always more work to be done when running a kingdom. Or maybe a snack. A snack that doesn’t involve helping her Steward sire another future ruler of Equestria or testing Twilight’s Earth Pony Guard’s endurance and stamina. Say, cake. There should be some left.

She slides off her bed, surprised at how shaky her legs are, and heads for the door.

Before she can reach for the doorknob it rattles and opens. The silhouette of a stallion appears, trying to be quiet. Built like a Castle Guard.

No. He wouldn’t—

Or did Twilight send him to distract her?

“Cadence?” the stallion asks.

Shining.

Cadance exhales with relief, and watches Shining peer into the dark of their room, his eyes still adjusting. Head lowered, ears flat, dull expression on his face. Not how the recently-fucked would look, but also not how a birthday pony should look. Something has happened.

When he sees Cadance he freezes, then stands upright and forces a smile and asks, “Honey. Still up?”

“Of course. I couldn’t let my birthday boy go to bed without giving him his present.” She can feel the stress radiating off of him. Whatever happened, it’s been an emotional night for him. He needs her. She touches his chest, then reaches around him for a hug. “ . . . Shiny?”

He hugs back, melts into her embrace. “Sorry, babe. I’m just tired.”

“You poor stallion. Exhausted already? You must be getting old.”

He smiles weakly and shrugs. “That’s what happens on a birthday.”

“How is Twilight?” Cadance asks.

“She’s—” he purses his lips, aware he’s this close to lying to her. “Well, she’s not great. I think she’s having a tough time as a Princess. And she’s a little nervous about your pregnancy. But it’s okay. We talked.”

“What’s wrong?” she asks, and then, when he doesn’t answer, “Shining?”

He hesitates. “Cadance, dear. I know we promised to be open with each other, but the things she shared in confidence—I’m sorry. I can’t break her confidence. Even for you.”

“Shining, you’re not the only pony that cares about her. I know more about her mistakes than you could imagine. I want to help, if I can.”

“It’s not that simple—”

“What did she do?”

He exhales. “She kissed me.” He looks away, unable to meet her eyes, even though he’s not at fault.

Cadance deflates. At least Twilight is still predictable.

“Please don’t be mad at her,” he says.

“Oh?” she huffs. “Should I be happy at her instead? Or mad at somepony else?”

“It’s nopony’s fault. You of all ponies should know you can’t control your feelings.”

“But she can control how she acts on those feelings.”

“But—”

“Did she come to apologise? To clear the air? Or did she try to seduce a husband, a brother, and a father-to-be?”

Shining kicks at the floor. “She only just found out that last bit.”

Cadance takes another calming breath. “Somepony has to set boundaries. Sneaking around like this? Trying to take advantage of you when you’re alone? This isn’t healthy.”

“I told her—”

“Did you tell her no?”

“I was nicer about it.”

“I’ll talk to her. Filly to filly. We can work this out without hurting anypony’s feelings, but she needs to move on with her own love life.”

“Cadance,” Shining says, gently putting his hoof on her shoulder. He looks into her eyes and says with polite authority, “I have already worked this out. She needs time to herself, not ponies ganging up on her.”

Cadance scoffs, shrugs free of his hoof. “Nopony is ganging up on her. I’m not going to yell at her.” She gulps, feeling a little guilty herself now. “I’m worried about her. She may need some filly time, and you can’t give her that.”

He shakes his head, and falls back onto the bed. “I guess not. Please be nice to her. You can get pretty possessive when it suits you.”

She rolls her eyes, then holds her hoof up. “I’ll just talk to her,” she says, before realizing this is the hoof she has just covered in her juices. She stomps it back down before he can notice. “I promise.”

Shining exhales, and faces the ceiling. “I had no idea she still felt this way,” he admits.

Shining is a wonderful pony. He has a head for strategies and games. He can command an army with the same care and patience he shows in his private life. And he’ll make a loving, nurturing father. But sometimes Cadance wonders if he doesn’t need some sense slapped into him. “Really.”

He shrugs. “I thought she’d grown out of it.”

“Shiny . . . ” Cadance sighs. “Fillies never grow out of their first love. Most find another stallion, and their feelings change as they grow older, but a mare never forgets her first.” She looks over her shoulder, imagining where Twilight’s bedroom is in relation to theirs, where Twilight is probably hiding. “And Twilight hasn’t found somepony else. Certainly nopony as kind and loving and considerate as you.”

This brings a smile to Shining’s face. “Thanks.”

Cadance crawls onto the bed and settles beside him. “Hey,” she says, smiling at him.

“Hey,” he says, a genuine smile finally appearing. He reaches out to stroke her chin, then her stomach.

She kisses him, and he kisses back. Gently at first, but then desperately. Cadance almost laughs. For all her qualities, Twilight doesn’t have that firsthoof experience with adult Shining. Even if Twilight did try something, there’s no way she could steal Shining away. She’s an amateur. She needs time alone with him and has to abuse his unconditional love for her.

But Cadance is a professional. All she needs is a single kiss.

And now he’s back, safely in Cadance’s reach, where no one can hurt him.

Her stress starts to ebb—

“What did she do?” she asks, stroking his mane. “Tell me.”

“You . . . want to hear?” he asks. “You’re not mad?”

“Oh, Shining. It’s not your fault,” she says, poking his cheek. “Even I have a hard time saying no to Twilight. And after all these years, you still can’t tell when I’m turned on?”

—leaving arousal in its place.

Maybe there is room in their relationship for Twilight to squeeze herself in.

“Oh.” Shining gulps. “Well. She kissed me. Um. She said she misses me, and that she—uh, she misses how things were. When we were, you know. Younger. Then she hugged me and pressed me up against the wall and kissed me.”

Cadance presses up against him, leans her weight onto him, and rests her chin on his chest. “Was it good?” she asks, casually tracing circles across his muscles. “Was she good?”

Shining nods. “Yeah. She’s a good kisser.” He laughs nervously. “You know that.”

“Mmm, I do. But that was when she was a child. She’s an adult now.”

“Barely,” Shining whispers.

Cadance rubs her lips across his chest and leaves light kisses. “Shining Armor. Are you getting turned on by your little sister?” A big smooch. “Are you imagining the two of us having our wicked, naughty way with her?” Cadance certainly is. She bites, eliciting a gasp. “Or . . . is it the two of us having our wicked, naughty way with you?”

“No! No, it’s just—she, uh, she smelled—” he gulps.

Like a whore. “I know, dear. I know.”

Cadance crawls upward, noses the crook of his neck and inhales. Shining smells good too. Cadance knows her own musky scent is floating around. She licks his neck, and slides her body against his, shifts her weight until she’s got her forelegs on either side of him, hugging him. His erection presses up against her hip, hot and hard.

“Then what?”

It takes a moment for her question to register. “Huh?” he asks, looking up at her.

Cadance groans, lifts her hind leg up and over his leg, settles on his thigh. “What happened next?” Cadance repeats, rubbing herself against his leg.

Shining grunts, rolls his hips, grinding his erection into her abdomen.

“Did you fuck her?” she gasps, sliding up his body

“No! Of course not. It’s not like that.”

“Mmm . . . I would have.” She stands her forehooves on his chest, looks down at him. He looks so vulnerable, so ashamed. “Shiny . . . ”

“She pushed me back, and crawled on top of me.”

“Mmm. Like this?” Cadance breathes, resting her weight on his lap and notching his cock between her legs. Any movement will have her sliding down his length. “Were you hard, like this?”

He nods, eyes shut. “Nngh—Stop teasing, Cadance,” Shining says, thrusting up against her. So desperate.

“Not until you tell me what you two did together.”

“No—”

“Shining. Tell me.”

“She—she asked me to give her a foal!” Shining gasps.

Cadance freezes. A weight falls in her gut, and she barely notices as Shining grabs her hips and thrusts himself up inside her.

Twilight wants a baby?

No—Twilight wants Shining’s baby.

Just like she did.

Cadance would probably have been okay if they’d just fooled around. Or if Twilight had simply admitted how she felt to Cadance. And Cadance knows she can’t keep pretending to be upset at her for wanting him. Imagining Shining fucking his little sister leaves Cadance breathless, turns her on in ways she can’t describe.

But asking Shining to abandon his new family and give himself to Twilight instead? To leave Cadance behind?

That—that little slut!

With a growl, she pulls herself off of Shining and climbs off the bed. Fine. Maybe Twilight needs to be taught a lesson.

“You’re leaving?” he whimpers. “Now?”

She pauses, then turns to face him, forcing a patient smile on her face. It’s dark enough that he might even believe her. “I’m going to help her.” She kisses his forehead and says, “When I get back, I’ll take care of you. But if I don’t deal with this now, I’ll never do it. I won’t be long.”