Tags: Twilight SparklexShining Armor, incest, a tiny bit of TwilightxCadance, personal space invasion, a feels trip, sibling teasing, a minor case of hentai quotes, a sex montage, mirrors, parents

“Rainbow, can I ask you something?”

“Shoot, Twi.”

There was a moment of silence as the two walked through the halls of Canterlot Palace. “Alright,” Twilight Sparkle started. “I hope you don’t take this the wrong way, but why are you so excited to be a bridesmaid? I can see it for all the other girls, but it doesn’t really seem like your thing, especially for someone you’ve only just met.”

“Psh. What, are you saying am I not girl enough?” Rainbow then chuckled at Twilight’s panicked protests. “Chill, Twi, I getcha.” She clasped her hands behind her head. “Well, for starters, it’s new. I’ve heard of plenty of schoolmates and coworkers getting bored to tears by all the weddings their families or friends or families’ friends rope them into, but I haven’t attended a single wedding since I was, like 5.”

“Really?” she replied incredulously.

Rainbow nodded. “Probably ‘cause my family’s not that big, and my parents got together later than their friends did. So, getting a front-row seat to one’s actually a big deal for me.”

Twilight tilted her head, mentally chewing. “Even so, I didn’t think you were the type to care about weddings in the first place, novelty or not.”

“’Cause they’re too lovey-dovey, gushy-gooey?” she laughed. “Twilight, I am totally down for marriage.”

“You are?” she blinked. “You’re not afraid being tied down?”

“Who do you think you’re talking to?” Rainbow asked, jerking a thumb at herself. “Element of Loyalty? Right here?”

“Oh. Right.” Twilight realized that should’ve been obvious.

“Having a partner who has your back wherever and whenever you need it? ‘Till death do you part? Always good for a bang?” She waggled her eyebrows. “Now that’s a deal!”

“Careful,” Twilight smirked. “It sounds like you’re ready to pop me the question. Or one of the other girls. You’ve been bumping shoulders with Applejack and Rarity a lot, recently.” She braced herself as Rainbow punched her shoulder with a guffaw. “I guess you just need to find the right guy. Or girl. Probably girl.”

“Duh, you can’t rush romance,” she nodded sagely. “And totally girl. Probably.”

“Which is it? Totally or probably?”

“Well… you never know, you know?” she shrugged. “I mean, I can swing both ways, but chicks way are prettier to look at. They have tits. Tits! And what do guys have?”

“Pecs. And dicks.”

“Psh. Tits are way hotter than pecs. And with you around, I can get all the dick I want!”

“…So are you hiding a ring somewhere, or…?” Twilight managed to dodge Rainbow’s playful swipe that time.

Suddenly, Rainbow’s grin turned a shade of nasty that put Twilight on edge. “Well, I can think of at least one guy I couldn’t turn down.”

Twilight quickly saw where she was going. “Rainbow…”

“I mean, who doesn’t like a man in uniform? I’m talking armor, and it’d better be shining…”

And there it was. Twilight let out an exasperated sigh.

Rainbow just went on with a shit-eating grin. “…Chill guy… captain of the guard, so you know he’s tough and reliable… and big body, big muscles, big hands, makes you wonder what else is big?”

“He is getting married,” Twilight growled.

“Pfft, he’s Canterlot! If he’s anything like you, he’d be down for roll in the hay, no problemo!”

“Rainbow, no.”

“Rainbow, yes!” With a flap of her wings, she launched herself into the air and started hovering alongside Twilight as she let her fantasies go. “I could just go ask Cadence to take him for a spin, then take him into a closet! A nice, small space so he can feel this rockin’ bod!”

By this point, Twilight’s face was buried in her palms, though she only slightly slowed her pace.

“…Pull down his pants, see how much he’s packing… Ooh, man, it’s gotta be a lot! Start him with a sweet BJ. Fuck, he’s gonna stretch my throat!”

“This is sounding less and less hypothetical by the second.”

Rainbow ignored her. “I’ve got some practice, no way he’s bigger than some of your toys. I’ll take all of him, get him to just ram it in there! Fuck!” she groaned, twisting her legs under her dress. “I’m actually getting horny thinking about it! Like, I actually want him coming in my mouth!” She paused. “Actually, maybe not. Dude jizz always tastes gross.”

“His got better when he changed his diet.”

“Oh, sweet,” Rainbow nodded. “I’ll let him cum in my—"

She froze.

She whipped her head around to look at Twilight, who had also frozen up. Rainbow would later regret not having a camera to capture her face at that moment.

“Wait, why—?”

“Oh, look!” Twilight yelped, rushing to a door. “We’re back!” She yanked it open and practically threw herself inside the room.

“Hold the fuck up!” Rainbow yelled, flying in after her. “How do you know how your brother’s cum tastes?”

There was a deafening silence as Rainbow realized that all other girls and Cadance were in that room and could hear her perfectly. Applejack was staring bug-eyed somewhere between Rainbow and Twilight, while Rarity, seated behind the farmer, fussing over her dress, let her jaw drop, along with a mass of pins and ribbons that had been floating around them. There was a wumph as Pinkie’s hair broke free of Fluttershy’s attempt to braid it, Fluttershy staring silently, and Pinkie letting out a drawn-out gasp. Oddly, Cadence, with her eyebrows so high, they disappeared in her lifted veil, seemed the least stunned. It was almost enough to abash Rainbow.

Almost.

Even from behind, Rainbow could practically see Twilight’s eyes darting frantically in search for an escape route. She remembered that Twilight could teleport. “Oh no you don’t,” she growled. “Pinkie! Sic’em!”

Just as Twilight was gathering her magic, Pinkie closed the distance between them with a great leap and clamped her mouth over the mage’s right pointed ear. Twilight squealed as her magic fizzled out, her concentration thrown straight out the Canterlot window, and collapsed under Pinkie. “OH STARS WHY?”

“Not what I had in mind,” Rainbow muttered, “but I’ll take it.” She walked over, crouched down, and pulled Pinkie away with an audible pop. She tried to ignore how much saliva spilled out. “Alright Twi, talk.”

“Talk? Ha ha! What’s there to talk about?” Twilight squeaked, rubbing at her head with her dress's shoulder, drawing a cry out of Rarity. Her toothy grin was strained, and strands of her hair were starting to curl out, reminding Rainbow uncomfortably of the Smarty Pants Incident.

However, Rainbow wasn’t one to back down easily.

“You just said you tasted your brother’s cum. Come on, spill it, how far have you gone with him?”

“Rainbow…” one of the girls muttered, but she wasn’t paying enough attention to notice which one.

“What? Gross, he’s my brother!” Twilight shouted. “You must’ve misheard me!”

“Pinkie, do… do whatever you just did,” Rainbow ordered.

“Okee Dokee Lokee, one Soggy Simon coming right up!”

“Soggy what?”

“Wet Willy’s bigger, more invasive cousin, Soggy Simon!” Pinkie chirped cheerfully, as if her explanation made sense.

“Sure, go for it,” Rainbow deadpanned.

Before Pinkie could probably shove her tongue back into Twilight’s ear, the target grabbed her by the face and struggled to push her away. “No Soggy Simons! Look, I know the stuff I’m into is kinky by your standards, but I have limits! I’d never—!”

“Twilight.”

All the color drained from Twilight’s face at the voice, and the two girls stopped struggling. Slowly, she turned to face the bride, who looked down at her sternly, arms crossed.

“Cadance!” Twilight shoved Pinkie away fully. “It’s— This… She’s lying! I didn’t—! Shining wouldn’t…” she choked out, every protest dying out under her former babysitter’s gaze. “Even if— I…” She gulped, tears brimming in her eyes.

“Please don’t call off the wedding,” she finally whimpered.

It was at this point Rainbow realized that there was more at stake than finding another one of her friend’s kinks. She gulped, and looked up at the seething glares of Applejack, Rarity, and even Fluttershy.

Cadance, meanwhile, sighed, snapped her fingers, and grabbed the frilled handkerchief she’d conjured. She kneeled down and started dabbing at Twilight’s tears. “Twilight,” she said gently, “the love I share with Shining Armor was strong enough to fight off a city-wide changeling invasion. How could a little incest get in the way of that?”

Twilight stared blankly for a few seconds. “I… Right, a little incest…” she mumbled.

“Uh,” Rainbow interjected, despite knowing she was digging her own hole deeper, “you said Shining tasted better when he changed his diet. That sounds like more than a little incest.”

Twilight whirled around and hissed, making a cutting gesture across her throat, but Cadance put a soothing hand on her shoulder.

“Twilight, calm down. Breathe with me.” At Cadance’s lead, the two took a few deep breaths, each resting a hand over her chest to inhale, and extending her arm to exhale. “Better?” Twilight nodded. Cadence started wiping away Pinkie’s slobber with the handkerchief. “Okay, now, I promise you that whatever you’ve done with your brother, it won’t endanger our marriage, alright?” A sniff and another nod. “And I am sure,” she paused for emphasis, “that none of your friends will think less of you or Shining either. Right?”

She was met with a round of assurances, though Rarity grumbled something about it depending on young they were when they started, which earned a snort out of Twilight.

“No problem here!” Rainbow put in. “I wanted to know because I actually think it’s hot!”

“Spoken like an only child,” Rarity muttered.

Cadance quickly cut off any potential argument by hoisting Twilight to her feet and leading her to some stools. “Why don’t you tell us exactly how it all started?” she said as everyone got seated and gathered up.

Twilight was silent for a moment, twiddling her fingers, and then took a breath. “It started soon after Shiny got promoted to Captain of the Guard. I’ve mentioned this to you girls before, but before then, the barracks were my go-to for sex. Two to three days a week, I’d go over and invite some recruits or soldiers, near my age, to sex, or often, a gangbang. I loved it, they loved it, but Shiny didn’t, for several reasons. He had complained to me, but I kept brushing him off. I never saw it as a big deal.

“The day after his promotion, I went to the barracks for just another visit, but no one would even get near me. They barely even looked at me! I really wasn’t used to that treatment. Eventually, I got an explanation: the new captain had established a rule effectively banning flirting with or sexing up a superior’s immediate family, and he was apparently very strict about it in one particular case: me.

“I was pissed. Remember how I said Shiny and I never fought?” The girls nodded. “That was a bit of a lie. We’re siblings, we had the odd meaningless spat we could laugh off later, but never anything like this. I stormed into his brand-new office shouting, and before long, he was shouting back.”

Twilight sighed, looking down with a pained expression. Pinkie shoved a glass of water into her hands, which she gratefully took. After few sips, she continued. “As it turns out, getting respect in the Royal Guard can be an ordeal when half the recruits can look you in the eye and think, ‘yeah, well, your baby sister loves my dick.’”

“Ooooh,” Rainbow, Applejack, and Pinkie winced.

“Yeah,” she sighed. “Of course, I was angry, horny, and stinging from rejection, and I wasn’t about to care about his side of the story. We just kept trying to shout over each other, until…” She sighed again. “Well, that was the first time I was ever actually hurt by someone calling me a slut.”

“He WHAT?”

Everyone jumped at the shriek, and Twilight started hyperventilating when she realized it was Cadance. Cadance, for her part, let her anger subside when she noticed Twilight’s reaction and quickly tried to calm her down.

Two minutes, some panicked garbling that Shining had apologized already, several hurried assurances that the wedding still wasn’t off, another round of deep breathing exercises, and a new glass of water later, Cadance and Twilight were huddled together on a loveseat while the other girls sat on stools around them.

“Ok, so…” Twilight began, “that word. I just ran out crying, ignoring him calling after me. I… don’t really want to reminisce on that night, but after Princess Celestia gave me a long heart-to-heart the next morning, I was feeling better.”

“Well, that explains why he was so down that night,” Cadance said, putting a finger to her chin. “He told me he got in a big fight with you, but he wouldn’t give me any details. He wouldn’t even let me comfort him…”

“Wait,” Twilight cried, “you were dating even back then? Like, actually dating?”

“Settle down, Twi,” Applejack said, reaching over to put a hand on her shoulder. “One thing at a time.”

Twilight took a breath. “Okay, so moving back a bit, while I was having breakfast that morning, I got a letter from Shiny, apologizing and asking me come to his house that evening to talk things over. The Princess noticed, and that’s when she got involved. Anyways, when I got there…”

As soon as Shining Armor shut the door behind her, Twilight Sparkle took a deep breath, ready to launch into the careful, thorough apology she’d composed with an afternoon of research. “I—”

That was as far as she got before her brother threw his arms around her in a bear hug that lifted her to her toes, burying his face into her shoulder. Twilight froze, her mind a jumble as her memorized speech slipped away like water down a drain, and she had a fleeting thought that she knew she should’ve made flash cards. The next second, she slumped into his grip, immersing herself in his familiar scent, his muscles that would always protect her, everything.

The second after that, however, he suddenly tensed up and pulled away, leaving her dazed and lost.

“Sorry!” he yelped. “I was supposed to give you space before I—!”

Twilight cut him off by leaping at him with her own hug, wrapping her arms around his shoulders, tugging him until he bent over so her feet could touch the ground. Slowly, he returned the hug, once again enveloping her in nostalgia and safety and love.

Minutes passed before either of them spoke. “Twiley,” Shining spoke first, his voice thick and wavering, “does this mean I’m still your B.B.B.F.F.?”

Twilight snorted into his shoulder. She hadn’t even noticed she had been crying. “Of course, you are. The last ‘F’ stands for ‘forever’, doesn’t it? You’re always going to be my B.B.B.F.F., whether you like it or not!”

She felt his body shake against hers in sobbing laughter. (Most of the girls were weeping openly, and Pinkie unabashedly blew her nose with the grace of a foghorn.) A few more minutes went by, until eventually, Shining unhooked one arm from her and began to lead her deeper into the house. “Come on,” he said. “I made tea, though it’s probably cold by now.”

Reluctantly, Twilight let go of his neck so they could actually walk, but insisted staying latched onto his side as they walked through the dining room into the kitchen, where Shining pried her off onto a chair at the island. He went on to pour some tea from a kettle but clicked his tongue before relighting the stove under the kettle. “Sorry,” he said, finally sitting across from Twilight with two ceramic mugs, “I started it way too early.” He pushed one over to her.

Twilight just smiled gently. “Let go for a bit,” she said. He did for his cup, and she extended her hand, focusing some magic. Soon, both mugs were steaming, and Shining took his with a grin.

“That’s my handy little sister,” he smirked, and her heart soared on his praise.

“Still not as good as fresh, though,” she mumbled, blushing.

They each took a sip, and for the first time in a day, looked each other in the eye properly.

“Right,” he started, “I had a whole thing planned, but that was… sort of derailed.”

“Same here,” she giggled, remembering the hours spent drafting her own apology speech.

“Then let’s start over.” He took a breath. “Twilight, I am sorry for losing my temper with you, trying to control your decisions, and calling you…” He hesitated. “…A slut.”

Twilight was silent for a moment, then suddenly stood up. Shining started in surprise, but Twilight walked around the island to him, and then seated herself on his knee. She gave him another hug, as his free hand came around to support her. “And I’m sorry for not listening to you, for not considering your situation, and shouting at you. I don’t ever want to fight again.”

“Me neither,” he agreed, snuggling up to her. (Twilight grimaced. “Still have to work on that.” No one replied.)

They basked in comfortable silence for another few minutes, sipping their tea. When the kettle began bubbling again, Twilight levitated it over for refills.

Eventually, Shining broke the silence. “So… I do plan on repealing that rule I made tomorrow,” he said.

“Really?” Twilight exclaimed. “Just like that?”

He chuckled. “Well, as you can imagine, it’s not the most popular rule. Popular opinion calls it too controlling, biased, impractical to enforce, and so on. Also, I should trust you to be responsible for your own decisions.”

She frowned. “But I wasn’t. Either way, I certainly won’t be making my visits a regular thing now that I know how hard they were on you. Things would never have gotten this bad if I had just listened to you.”

“Hey now, you already apologized.”

“But still.” She took another sip of tea. “I’m a bit concerned about how quickly you’re going to do it. Making a strict rule on your first day, only to repeal it a few days later? People are going to start questioning your authority.”

“Better than just leaving things as they are.”

Thinking, she shrugged. “You’d know better than I, I suppose.” She looked up at the chandelier as her mind wandered. “I’m going to have to find a new go-to for when I get horny. Hmm, Twinkleshine’s always inviting to me to parties. Maybe I should take her on her offer next time…”

“Twiley, come on! I know you’re your own… woman, but I don’t need to hear about those kinds of plans about you!”

“Sorry,” she giggled in the manner of a younger sibling who was not sorry. “Oh, I just came up with a way I can make it up to you!”

Shining leaned back a bit from her sudden outburst. “A way to— Twiley! We both apologized! There’s nothing to make up!”

“But you’ll enjoy it!” she said, swiveling herself around so that she was in his lap, facing him, with her legs spread on either side. “I’ve gone and messed around with a bunch of your colleagues, so you can mess around with some of mine!”

“What.”

“I’m sure I could easily talk some classmates into having sex with you, the brand-new Captain of the Royal Guard! Or maybe some teachers! Which would you prefer?”

“Uh…” Shining shifted uncomfortably while Twilight bounced ideas off him as she bounced in his lap.

“I think Lemon Heart or Minuette would be good for it! Lyra… probably not, she’s a complete lesbian. Moondancer? I know she’s straight, but she never gets any attention, not with those baggy clothes, which is shame, because her figure’s like mine but curvier in all the right places! You could—!”

“Twilight!” Shining snapped, grabbing onto her shoulders.

She went through a sudden rush of emotions: shock at being so suddenly restrained, fear that he was mad at her again, disappointment that he disapproved of her plans, embarrassment that she had gotten lost in her own head as usual, and a tinge of nostalgia at her B.B.B.F.F. reigning her in. All of them were quickly overtaken by stunned disbelief.

At the time, Twilight’s day-to-day outfit was her school uniform with slight modifications, despite the dress code having been loosened years ago. What was once a symbol of personal pride had become a familiar staple that she rarely thought about, though she particularly liked the pleated skirt and its freedoms. That evening, she wanted to dress up a bit for her apology and wore a pretty buttoned blouse but stuck to a pleated skirt with, as usual for her, nothing underneath but her panties.

This meant there was, on her end, only one layer of clothing between her and an enormous bulge that her brother’s sweatpants did little to restrain.

The two siblings were completely frozen, staring at each other’s reddening face. Twilight wasn’t sure how long the silence lasted, but at some point, her brain restarted, and the first thing it did was marvel at the size.

Her hips thrusted against the bulge, drawing a sharp gasp out of them both. Her brain then marveled at how good that felt.

Slowly, she began to grind against it, feeling it pulse, grow, and push back, sending a warm shiver down her spine. Her gaze wandered down his chest, seeing the muscles stretching his t-shirt in an entirely new light. She laid her hands on them, only to realize he was saying something.

“…Are you doing?” she heard him gasp, but she couldn’t look up at him, some faint voice in her head cried, not when seeing his face could break the illusion.

“I don’t know!” she choked out, continuing to gyrate and thrust against that protrusion. Her hands started to explore, roaming over his sides, his abs, his shoulders, even his arms. She was no stranger to athletic men, but the body in front of her was exciting her in an entirely new way.

Suddenly, his hands left her shoulders and clamped down on her waist. Her heart stopped.

Then, they pulled, drawing her closer and pressing her harder onto that amazing bulge. She gasped, stars and hearts flashing in her eyes. Her hands starting tugging at the edges of his shirt, trying to feel his skin directly. His hands slid down and cupped her ass through her skirt, and Twilight, more than ever before, despaired that there was so little to grab.

(“Twilight, Darling! You shouldn’t say that about yourself!” “Rarity, the nicest, technically accurate description for my butt is ‘compact’.” “That’s not true! It’s… Ah…” “Moving on.”)

Determined to give him something better to grab, she undid a few buttons of her blouse, grabbed his right wrist, and shoved his hand inside the gap. Immediately, he began to grope at her heaving breasts through her bra. She moaned loudly, wrapping both hands around his thick wrist. Soon, that hand pulled her bra up out of the way and palmed and squeezed her tender breasts directly, occasionally pinching a small, hard nipple.

Her eyes were shut, basking in the warmth of his palm when she felt the pull of magic. Looking down, she could see his aura picking apart the rest of her blouse’s buttons. Just as the last button went free, his left arm hooked around her entire ass and hauled her body up and against his. Her arms wheeled around in the air off balance until she planted them on his shoulders. Before she could question him, he planted his lips around her right nipple.

She squealed, wrapping her arms around his head and clutching as if to pull him into her chest. He just continued to worship her breasts, licking and blowing on her flesh and nipple, sucking them into his mouth, and lightly nibbled her. Her grip didn’t even slow him down when he pulled away to switch to her other breast.

Her legs thrashed around him as she cried into the air. Foreplay hadn’t excited her this much since—well—her first time, at that school glory hole, and maybe not even! But speaking of which, as blissful as the attention was, there was one thing missing. Her sopping groin humped against his hard abs, but he was holding her too high up to feel it: his cock.

With a great, but harmless burst of magic, she forced herself out of his arms, turned his chair, and fell to her knees in front of him. Before he could respond, she hooked her hands under his sweatpants and boxers and yanked them down. To her delight, her face was perfectly positioned so that his swollen head sprang right to slap her right on the lips. She pulled back and squealed ecstatically, licking the splatter of precum off her lips, and wrapped both hands around the shaft. She would later be embarrassed at how quickly she lost control of herself, barely getting any of her usual teasing done before she clamped her mouth over the head.

At first, she just suckled at the crown, circling it with her tongue and drinking every drop of pre her hands pumped out, moaning softly as his hands cradled her head and gently played with her ears. Then, she started pumping her head until he reached her throat, which left plenty of room for one fist to stroke the base while the other massaged his balls. Soon, she shoved a hand under her skirt while she swallowed his entire shaft, pressing her nose into his hair, and just stayed there. She breathed easily, every inhale saturated with musk, and every exhale releasing a blissful moan. It felt like she’d been practicing for this for years with bigger cocks, both fake and real. He made slight thrusts as her throat massaged him, and his hands held her in place—gently.

Eventually, she felt him jerk. “Coming!” he gasped. Smiling as best she could, she slipped into a familiar pattern: she began to swallow, the motions of her throat constricting his shaft and milking him. He groaned, his cock throbbed, and then she felt wonderful liquid warmth being pumped straight into her belly, causing her to clench around her own fingers. After a couple waves, she backed away, though she had to resort to magic to overpower his grip. Now, the rest of his load was being spent in her mouth, and she savored every musky drop. She let him fill her mouth until she sensed one spurt left. Delicately, she let him pop out of her mouth, spraying a line over her face, across her nose, and prepared to look him in the eye as she showed off her cream-filled mouth.

It was like a grand illusion had shattered the moment their eyes met.

Suddenly, Twilight remembered that this was her beloved B.B.B.F.F. The one who had would always walk her to the library, who taught her how to fly a kite and ride a bike, who built model planes and a functional radio with her, and who would always be there with her. And here she was, kneeling before him, panties drenched, breasts exposed and wet with his saliva, and body full of and covered in his semen.

She could see the same revelation mirrored in his eyes. She swallowed reflexively—completely forgetting about the load in her mouth.

They leapt away from each other like opposing magnets, yelping and scrambling to cover themselves up.

As Twilight turned away to rebutton her blouse, she heard Shining speak up. “Uh, Twiley… you’ll probably want this.” For a moment, she flushed, thinking he was handing her her own underwear before remembering she hadn’t taken her bra or panties off. She glanced back to see a wad of paper towels floating in his magic, which she gratefully took to wipe down her face and clean under her skirt.

Once she was presentable, she spoke, still unable to face her brother. “I… should get going now,” she choked out.

“Y… Yeah,” he mumbled. “I… um… I should walk you out…”

“NO!” she shrieked before catching herself. “No, I’ll be… fine…”

She walked up to the arch into the dining room, but stopped. Was this it? She had come over hoping to recover their relationship after their fight. If she walked away now, leaving him like this, would things be any better?

She steeled herself, turned around, and darted back in front her brother. Before he could respond, she leaned over for a hug, a kiss on his flushed cheek, and a quick “Love you, B.B.B.F.F.”, and then she ran off.

Before she left his sight, she thought she heard him reply, “Love you too.”

She couldn’t sleep that night. As she lay in bed, her hair still damp from her longest shower ever, she wondered. She wondered if she could ever look her brother in the eye again. She wondered if she could ever face her parents or the Princess, knowing what she had done. She wondered what would happen if anyone found out what she had done. She wondered if it were possible for anyone to find out what she had done. She wondered if there was any hope for her life if it came out. She wondered if he was wondering the same things. She wondered if she could still have her B.B.B.F.F.

And most of all, she wondered if they could do it again.

She whimpered, groping her own nude body and jamming a toy into herself under her blanket. There was no denying it: her brother had been the best lay of her life, and he hadn’t gone under her skirt! Not even Princess Celestia could set her heart pumping that hard. She groaned into her pillow miserably, pounding out another quaking orgasm, wondering what it would take to replace the lifeless dildo with his cock.

The next morning, after only two hours of sleep, she got another message from him over breakfast. It sounded innocent enough, bemoaning that their duties had forced a distance between them over the last few years, and that he wanted them to hang out more frequently. However, his statement that he enjoyed the last night had her crossing her thighs and biting her lip.

Once again, Shining Armor closed the door behind her. They were silent for a few seconds, not quite looking at each other.

With a sigh, he spoke first. “Twilight… How exactly do you feel about last night?”

Looking up at him, she willed herself to say the truth. “You were the best I’ve ever had.”

His eyebrows shot up into his hair. “Wow, okay…” he laughed nervously. “I was not expecting that, and I really want to say the same…”

Twilight fought to crush the nugget of jealousy and disappointment building in her. “Okay, but I’m way up there, right?”

“Of course.” He ruffled her hair and pulled her into a half-hug. “I didn’t even know girls could breathe going that deep.”

“It took a lot of practice,” she giggled, glancing down. He was wearing the same sweatpants, and she could already see him stirring.

His hands suddenly gripped her shoulders and pulled her away. “Twiley, I want to go on, more than anything, but you have to promise me this,” he said seriously, holding her gaze. “If we do, will I still be your B.B.B.F.F.?”

She paused. She’d spent an entire night and day wondering, but now, she was right in front of him, and the question needed an answer. After a moment, she leaned into him and wrapped her arms around him in a hug. After a moment, he hugged back, and Twilight felt that same cocoon of memories and caring that she felt yesterday. She had her answer. “Always.”

“Alright,” he replied, and they both sighed, melting into each other’s arms. After a moment, Shining backed off. “Okay, first, I should mention: I made… not quite tea, but something to help.”

Again, he guided her into the kitchen, where there was a kettle waiting. “This blend is actually more like a potion than tea,” he explained with a tinge of worry. “A stamina potion, with a little aphrodisiac. One cup for each of us will keep us going until dawn. Usually. Tomorrow’s the weekend, but if you have any plans…”

“I don’t. Give,” she said immediately.

He snorted. “Calm down. We’ll go a bit without it first, and then if we’re sure—”

She grabbed his head between her hands, pulled him down, and straight up jammed her tongue down his throat. It didn’t take him long to reciprocate, hooking his arms under her ass and behind her back to pull her up. Finally, they backed away panting. “Do I look unsure to you?” she asked challengingly. Not waiting for an answer, she wriggled out of his arms, immediately poured out two mugs, and started chugging hers.

Shining laughed as she started coughing and gagging. “Yeah, it’s bitter. I could’ve warned you if you gave me any time.” He went to drinking his mug, hiding his grimaces.

Twilight grumbled in annoyance. “Well, I’ll have something to wash it out soon enough,” she said, elbowing him before drinking more carefully.

As soon as they were done, Twilight reached out to pull down his pants, but his arm caught her wrist. “Nope. Bedroom,” he said firmly.

“But I want it nowww…” she whined.

“Young lady, you are my little sister. We are going to do this properly.” (Rainbow snorted. Twilight glared.)

“Not even a little suck?” she asked, wobbling her lip.

Rather than continue the playfully childish debate, Shining just hauled her onto his back. She squealed, and they laughed at fact that they were several years too old for piggyback rides but weren’t letting that stop them. As he carried her up the stairs, she couldn’t resist prodding at his growing erection with her feet and grinding against his back.

Finally, he dropped her onto his king-sized, four-poster bed and wasted no time pulling off his shirt, while she wasted no time getting on her belly, yanking down his pants and boxers and stroking his rock-hard cock. He chuckled and pulled her away before she could get her mouth on him. She felt like a rag doll as he dragged her by her wrists onto her back and up the bed, leaving his vast, naked form kneeling over her, and here she was still fully dressed!

Like yesterday, she had dressed up for Shining, but this time, she had aimed for enticing. His magic tugged at her tank top, pulling it up over her head, raising her arms so he just had to let go of her wrists long enough to get it free before pinning her back down. Meanwhile, her magic pulled down her soaked panties, leaving her miniskirt, and unhooked her bra. When he was done with the tank top, she made sure he was looking and lifted her bra, showing off her perky breasts. Smiling broadly, he raised her arms again so they could remove the bra the same way, but this time, he leaned down and kissed her on the lips. Squealing in delight, she wrapped her legs around his waist and pulled herself against him, pressing her breasts into his chest. He ground back, lowering them so her back touched the bed again, and then she felt him jab between her thighs.

She gasped, breaking the kiss. They looked down, though her miniskirt blocked their view of his cock sliding over her lower lips.

“Do it.”

Shining looked at her in surprise. “Just like that? What happened to foreplay?”

“Fuck foreplay!” Twilight cried, positioning him with her magic. “I can’t remember the last time I’ve been this horny! Fuck me, B.B.W.B.F.!”

He paused. “What?”

“Big brother with benefits forever! Now hurry up!”

Instead of hurrying up, he hmmed. “Kind of a mouthful, isn’t it?”

She snarled. “You come up with something better! I’ll show you a mouthful if—AH!”

His snicker turned into a moan as he slid into her, nearly filling in one smooth thrust.

“You— You jerk!” she both laughed and cried, trying her best to headbutt him. “You did that on purpose!”

He just smiled, pulled back slightly, and then made one more mighty thrust, hilting himself in her. She cried in bliss, curling her fingers into his and locked her legs behind him, as if to never let him go.

“Oh, stars,” she panted, feeling him throb. Every pulse sent waves of pleasure across her body, bouncing around in an echo chamber of bliss. “It’s a perfect fit. It’s like you were made for me…” It was true. She felt wonderfully stretched around him, but without even the slightest discomfort she might've felt from a larger intrusion.

“You’re younger than me, so wouldn’t that mean you were made for me?” His tone was joking, but strained. He probably felt the same way about her pussy wrapped so snugly around him, she thought both smugly and adoringly.

Eventually, he slowly but surely broke out of her grip and pulled out, drawing out a cry of despair as that perfectly-sized rod left her, but he immediately settled into a rhythm of pounding into his little sister. His sister, her brother. Just thinking about it sent her heart aflutter. “How is it, Shiny?” she gasped, struggling to vocalize coherent words while her beloved brother ravished her. “How do you like your baby sister’s cunt?”

Smirking, he turned it around. “How do you like your big brother’s cock, Twiley? Such a naughty girl...” She let out another fierce moan at those words, which was quickly consumed by his lips. She loved kissing her brother. She was amazed they hadn’t started years ago.

After a couple minutes, he, to her wailing disappointment, pried himself from her clinging pussy and her grip, just long enough to pull up and spread out her thighs between them and slam right back in. She felt a tinge of disappointment, already missing how much of their skin was in contact, before that thrust drove another squeal out of her. She shuddered as the position let his perfect length reach even further inside her. He resumed his thrusting, but at a slower, more powerful pace, and it took all her concentration to put her years of sexual experience to work, clenching her insides in time with his thrusts. Before he went in, she relaxed to minimize resistance and maximize depth, but tensed to up the pressure of his shaft against her walls as he dragged himself out.

“Fuck, you’re good,” he panted, groping at her breasts between thrusts. “I’m gonna cum soon.”

“Do it!” she hissed, wrapping her now free arms around his sweating back. They could practically see the hearts in each other's eyes. “Cum inside me! Cum inside your baby sister! She wants her B.B.B.F.F.’s seed in her womb!” She started up a spell.

“Anything for you, Twiley,” he groaned. After three last ponderous pumps, he shut his eyes, jammed himself as far inside as possible, and let loose. His quaking orgasm triggered hers as his throbbing dick delivered its burning hot payload deep inside her. His lips muffled her squeal while her spasming walls worked to milk him dry. This was heaven, she thought as her brother filled her with his love. In a perfect world, this would never end.

But end it did. Finally, they slumped onto the bed, Twilight hardly caring that she was being smushed under her brother’s bigger, heavier body. Still, there was too much to do to stay like this. Eventually, she started to push him away, shuddering as his half-hard cock popped out of her. He obligingly rolled over, and she crawled on top of him, nuzzling his shaft while her crotch went over his face. Slowly, he used his fingers to spread her pussy. He paused.

“Hey,” he called, “I know I came way more than this. Where did it go?”

Twilight shot him a smirk over her shoulder. “Didn’t I tell you?” she said, stroking his cock in a sleeve of magic. “I wanted your cum in my womb, so I made sure it went there.”

Shining blinked. “Oooh, fuuuck…” he groaned. “I had no idea you were such a slu—Mmph!” He slapped his hand over his mouth.

“A what?” She squeezed his cock, only barely enough to cause pain. “A slut? Well, Shiny, let me share something with you: I am a slut.” She stopped squeezing. “I love cock, I love cum, I love getting fucked in every way possible, and that, undeniably, makes me a slut.” Her gaze bore into his. “And tonight, I’m your slut. So go on, stuff your little sister slut full of your cum.”

He gaped, his cock harder than ever. “Holy shit,” he said. “I… hang on, what contraception spell are you…?”

“Five Degree Protection, naturally.”

“Of course you are,” he sighed, relaxing. The, he dragged her and some pillows around so his head was propped up into perfect pussy-eating position “Good, because don’t think for a second that you’re walking away before I’ve painted every inch of you. Slut,” he added as he unzipped and removed her miniskirt.

She shuddered, feeling his breath and then his tongue dance over her. The tea/potion had definitely already kicked in at some point. She dragged his cock over to her mouth and starting sucking on the head.

She didn’t keep track of how many orgasms either of them had. She couldn’t even count how many positions and places they fucked in. She did know that Shining had made good on his promise to claim her thoroughly.

She remembered him reaming her ass from behind, his hand on her shoulder and a tit while she pressed her face into one of the bedposts hard enough to leave an imprint on her cheek. He painted her insides white, and she used magic to make sure none of it could escape.

He held her by her legs as he stood up, letting her dangle in a standing 69. Before he came, she had him lower her so she could suck his balls and let him splatter her breasts and belly, and then happily rubbed it into her skin.

She bounced against his pelvis as he walked down the stairs, holding her bouncing body in front of him until he could deposit her onto the dining table, where he proceeded to suck her nipples while he pounded her pussy raw.

He fucked her doggystyle on literally every step of the stairs as they crawled back to the bedroom.

At some point, in the early hours of morning, they had dozed of for bit. Twilight got up first to use the bathroom, but she hadn’t even finished emptying her bladder when Shining marched in, grabbed her head, and mercilessly throatfucked her, to her delight.

He carried her back into the bedroom, but not without a couple stops to fuck her against the wall and cum over more untouched skin. Back on the bed, she rode him several more times, filling up her womb further.

When the sun finally shone against the closed blinds, he pumped one last, tired load into her as he spooned her. She let her spell drop so she could feel it drip out, and they both collapsed into a sore, yet satisfied sleep.

Later, of course, they fucked in the shower and while they ate brunch.

“After that night, Shiny and I… well, we just became fuckbuddies on top of being brother and sister,” Twilight said with a shrug. “We typically had an encounter at least once a week, though every few months, we’d schedule another all-nighter. This lasted until I moved to Ponyville. Since then, we’ve only managed a quickie every month or so, each time I’ve visited Canterlot.”

“…Including this time?” Rainbow asked. Twilight shook her head.

“Well—ah—we definitely have to fix that.”

Everyone looked at Princess Cadance, who had her legs spread and was quite conspicuously rubbing one out with her magic under her dress.

“So that’s why you wanted Twilight’s sexy storytime to be extra graphic,” Pinkie chirped.

“Well,” Twilight said dryly, staring, “now I know I don’t have to worry about you being upset with Shiny.”

“How could I be upset?” Cadance laughed. “I knew from the start!”

“…What.”

“Of course!” she said with a wide, salacious grin. “After all, I was there on that first night!”

“…WHAT?” Twilight’s brow furrowed, racing though her memories. “Wait, your love magic… Your love magic! You used love magic on us?” she cried, pointing.

“Guilty as charged!”

“Are you saying the only reason Twilight shacked up with her brother is ‘cause you made her?” Applejack nearly bellowed.

“Don’t be silly, of course not!” Cadance laughed, flapping a carefree hand. “I’d already learned from that mistake.”

“…What—”

“I knew you two would waste an hour trying to get through your long, composed apologies, so I just made a little spark to remind you how much you loved each other. I didn’t actually stay after that; your little lap-dance was all you. I just guessed what happened from how Shining acted the next morning, along with plenty of clues from both of you that I’ve noticed since. Did you really think you could hide anything from the Princess of Love?”

“…Then what was the point of all this?” Twilight cried.

“Because it was hot!” Cadance suddenly pulled up each layer of her skirt, showing off a soaked pair of lacy panties pulled aside to reveal a wet, puffy pussy. “Now why don’t you be a dear and finish me off?”

“…What,” Twilight said for the fourth time.

“Well I can’t go to Shining, now can I? A bride can’t see the groom before the ceremony, and I can’t wait that long!”

“You’re my babysitter!”

“And Shining is your big brother, but that hasn’t stopped you, now has it?”

“…She’s gotcha there, Twi,” Applejack pointed out.

“Oh, don’t look so surprised,” Cadance giggled at her simultaneously dumbfounded and defeated expression. “I always thought you were sexy, and I know you’ve always had a baby crush on me.”

Twilight was silent for a moment. “The way you say that, it sounds like you thought I was sexy back when you were babysitting me.”

Cadance’s smile didn’t waver.

Twilight buried her face in her palms. “Not another one,” she grumbled.

“Another one?” Rainbow repeated while the rest of the girls stared disbelievingly at Cadance.

“Oh, she’s probably talking ab—AHH YES!” Cadance was cut off when Twilight dove under her dress and disappeared under the layers of fabric.

Everyone watched this display for several seconds. It was Pinkie who broke the silence. “So, are we sure this isn’t the evil seductress who replaced Twilight’s favorite babysitter?”

“Don’t even joke about that,” Rarity sighed.

“Ignoring the fact that the princess’s apparently a pedophile, I gotta admit, after all this, I’ve got some ideas itchin’ in my head…”

Rarity shot her a look. “Apple Bloom?”

“NO! Ah’m talking about Big Mac!”

“Oh, sorry,” she squeaked, imitating Fluttershy.

Applejack took a deep breath. “But seriously, ya’ll can see where I’m coming from when I say he’s fine-looking.” She got a round of murmured agreements. “And I’ve caught him checking me out once or twice. ’Sides, it’s about time he lost his virginity.”

“…Wait, what?” half the girls cried.

“Eyup. Half the gals in town can’t help swoonin’ over him when he walks by, and he likes it, but he’s too much of a shy boy to carry any conversation beyond ‘eyup’ or ‘eenope’, much less go dating.” She sighed. “Even that business with Cheerilee didn’t go nowhere. Still, I would’a never guessed Fluttershy would give it up before Mac did.”

“Applejack!” Rarity gasped.

“No, she’s got a point,” Fluttershy said. “Twilight aside, I’d still be a virgin if Rainbow hadn’t dragged me along to that one party.”

Rainbow stared. “Wait, that’s when it happened? With who?”

“I don’t know,” she said, her face flushing, but with a soft smile. “It was seven minutes in heaven, and I don’t who came in.”

“…Oh! It must’ve been—”

“DON’T!” she shrieked, causing everyone, including Twilight and Cadance, to jump. “Sorry,” she squeaked. “I’d just rather not know. If I knew and saw him again, I don’t think I could...” she trailed off, her face hidden by her hair and her blush.

“Right,” Rainbow sighed. “Okay. What were we talking about? Oh yeah, Big Mac. If you were so worried about him, why not throw Twilight at him?”

“Speaking of,” Pinkie cut in. “Am I crazy, or are we just going to keep ignoring Twilight sexing up her babysitter right next to us?”

“Who says we’ve been ignoring it?” The girls looked at Rainbow, only just realizing she had a hand under her dress. “But you know what? You’re right, let’s cut the bullshit. Yo, Cadance! How good are you at eating pussy?”

“Why don’t you—Oh, yes—come find out?”

“Awesome,” Rainbow grinned, standing out of her stool to get into position. “You girls coming?”

After exchanging a quick look, Fluttershy and Pinkie also rose. “At least take your dresses off!” Rarity cried, following them. “And be careful with your hair! We won’t have much time to fix them before the wedding!”

“Is this gonna be a thing for us? Going to Canterlot and havin’ orgies?” Applejack asked, though everyone else was too distracted to answer. “…Fuck it. I’m in.”

“Oh, Rarity!” Cadance spoke up. “Speaking of dresses, can I ask you to make a little change to Twilight’s?”

Shining Armor jumped as the doors into his dressing room burst open. “Oh, Twiley, there you are!” he gasped when he saw the intruder. “I was afraid you would be late!” He smirked mischievously. “Or dare I say… tard—Mmph!”

Twilight cut him off by tugging him down by the collar and planting her lips on his. His eyes darted around, double-checking for witnesses, before relaxing into the familiar kiss. Then he recognized a familiar taste that should not have been there.

He broke away, wide-eyed. “Who exactly was that?”

Twilight grinned devilishly and kneeled in front of him. “Don’t tell me you can’t recognize your own bride by taste.”

He stared blankly as his best woman undid his pants. “…What…?”

“I let our relationship slip to her and my friends, but it turns out she already knew.” She started stroking his now-exposed shaft. “That first evening, she cast a familial love spell on us to rush us through our apologies and left, but afterwards, figured out everything we did because she’s the Princess of Love and she can do things like that.” With that, she popped his slowly hardening cock in her mouth.

Between the information overload and the attentions of his favorite cocksucker, Shining struggled to remain standing. He wound up shuffling backwards into a chair while Twilight followed him, easily taking him into her throat. “So, your response was to eat her out?” he asked.

She withdrew from his now fully erect shaft, leaving a drooping string of saliva between them. “She can be awfully persuasive,” she shrugged.

“…Well, I can’t deny that.”

“And she’s usually got good ideas. For instance…” She stood up, turned around, and bent over. She snapped her fingers, and the bottom of her dress parted like stage curtains, revealing a completely bare ass and dripping pussy. “When she heard we haven’t gotten any quality time together since I came to Canterlot, she decided we should fix the problem as soon as possible.”

Shining Armor had just learned, in rapid succession, that his little sister had had sex with his bride, his bride knew he was having regular sex with his little sister, his bride very much approved of him having sex with his little sister, and his bride had sent his little sister to have sex with him minutes before they would get married. He hadn’t thought he could be more in love with Cadance than he already was or hornier than either of these two women had ever made him, but here he was with his heart pounding like an army’s worth of war drums and a boner to tear the heavens asunder.

He grabbed her ass and jammed her into his lap, perfectly aiming her soaking lips straight onto his cock. She squealed, but he quickly brought a hand up to turn her head, so he could muffle her with another deep kiss. They held it for several seconds, sighing in ecstasy, while his cock throbbed inside its familiar sheath and her walls readjusted to the familiar intruder. Finally, their lips parted. “We’re going to have to be quick,” he said while Twilight panted. “We’re supposed to start walking down the aisle any minute now.”

“Then why are we wasting time?” she asked with a challenging smirk.

With a chuckle, he stood up, holding her in place. He walked them over to the dressing room’s full-length tri-fold mirror, letting her brace herself against it with her arms, and started pounding her deep, quaking thrusts.

“Oh, fuck,” she groaned, watching her own body shake under every thrust. “Why haven’t we done this with multiple mirrors before?” She met his eyes in the front reflection. “I could’ve watched you fuck me from so many angles.”

He grunted in agreement. “I wish we had time for me to watch your beautiful, slutty, naked body bouncing off my cock.” She let out another shuddering groan. He wrapped his arms around her in a bear hug and groped her breasts through the dress, watching through the right mirror.

“Oh fuck, wish I could teleport stuff from Ponyville,” Twilight panted, fondling his balls with her magic. “I could surround us with mirrors. Maybe Cadance could help us set something like that up? Then she can join in…”

Shining groaned and started pounding faster, spreading their legs so he could reach even deeper. He knew she wished her ass was bigger, but for him, her size just made it that much easier to hilt himself in her, surrounding himself in her snug, welcoming flesh. He readjusted his grip, one arm wrapped around her waist, pulling to make sure he could reach as far into his little sister's perfect pussy as possible.

Then he jumped at the sudden pounding at the door. Shit, was it already time?

“Ya’ll got three minutes!” he heard a country-accented voice yell. That was Twilight’s friend, Applejack, right?

“We’ll make it!” Twilight called back. She met his gaze in the front mirror again. “Isn’t that right, B.B.B.F.F.?”

He nodded, planted his feet, curled over, and began hammering into her with rapid, short but deep thrusts, his balls lightly smacking her swollen clit. She squeaked and pressed her cheek against the mirror. Her knees wobbled, but his legs stood strong behind hers, and he kept a tight grip on her waist. He smirked at the thought: him, the strong, reliable big brother supporting his little sister, but in a very different way from what society would expect.

He glanced up, and then gaped at the sight of his baby sister making out with her own reflection. She was watching for his reaction the entire time, sending him a coy wink. In response, he readjusted his grip to pull her torso into his, craning his neck around to kiss her again, breathing in her soothing scent amidst their musk. He felt her moan wildly into his mouth, her small body writhe in his grasp, and her burning walls clench around him, and he knew her orgasm was crashing down over her. Trying to catch up, he made a few last desperate thrusts and on the last, pulled her body back to ensure he came deep inside her. As always, her beautiful voice squealed, and her walls relentlessly throbbed around him, milking her body’s favorite treat from him so that she could keep a part of her beloved brother inside for as long as possible.

They held together for several seconds before Twilight slowly, reluctantly slid off him. She didn’t hesitate to turn around and engulf his softening cock in her mouth, down to the hilt, sucking their mess off of it. Shining, to his regret, tore his eyes from the sight to examine his flushed complexion and rumpled clothes in the mirrors. “Right, gonna have to clean up…”

Twilight pulled away with one final suck. “Let me,” she said, standing up. She raised one hand, palm up, and snapped her fingers on her other hand. What appeared to be a pile of sparkling powder appeared in her palm, and she blew it into the air above them. Shining immediately felt a sensation as if he were standing in a quality chilly mountain breeze (and living in Canterlot, he knew a thing or two about mountain breezes) over his entire body, even through his clothes. As it died down, he felt free of sweat and musk.

“Nice. Cadance has something like that,” he said, pulling up his pants.

“I know. She just taught it to me, since she knew we’d need it,” Twilight explained as closed up her dress without bothering to clean up the dribbling mess underneath.

“Really? Just now? That was even better than hers!” he exclaimed, running a comb through his hair. “That’s my clever little sister,” he added, patting her head. She glowed.

“Ya’ll ready?” the same voice called from behind the door. Had she been waiting there the whole time?

“We’re ready!” Twilight answered. “Come on, B.B.B.F.F.!” She latched onto his arm. “Time to get you married!”

Meating her beaming smile with his own, he marched with her out of the dressing room, ready to walk down the aisle for the best day of his life.

“It’s adorable, isn’t it?”

“It is. …What is?”

“How obvious they’re being, silly!”

“…Are they?”

“Do you not see the way the three of them keep looking and winking at each other?”

“Huh, now that you mention it…”

“And those other girls, too! Her friends from Ponyville! They're definitely in on it!”

“Heh. Now that brings a tear to my eye, making real friends, not just girls she got used to hanging out with. Our precious sparkle’s grown so much.”

“And our knight in shining armor, too! Married! With a princess! Oooh, I’m not sure how much longer I can wait!”

“Calm down, Dear, at least let him get through his honeymoon before you go suggesting any deeper ‘family bonding’.”

“Pfft, I bet twenty bits they’ll invite her over to their suite for at least one night and day.”

“Heh. I’d be a fool to take that bet.”

“Besides, don’t go telling me you can wait. I’ve seen you checking out our sparkle far too many times to buy that!”

“Fine, I won’t tell you. And you’re one to talk, you can hardly keep your hands off our big boy.”

“Alas, having such sexy children. ‘Tis truly a blessing and a curse.”

“Indeed.”

Author's Note

Did you think the incest was over? No, it has only begun...

This isn't really related to the story, but hot damn, that gif by Oughta! I just have to get that out there.

Next chapter, Rarity walks in on Applejack's second sibling bonding session with Big Mac. Sex ensues.