Sweetie Belle's Wager

by dirty little secret

Rating: mature
Tags: Fetish, Spike, Rarity, Romance, Porn, Sex, Non-consensual, Sweetie Belle, Anthro, My Little Pony: Friendship is Magic
Length: 10196

And if you win, you can fuck my sister! -- Wait, what?

And if you win, you can fuck my sister! -- Wait, what?

Sweetie Belle makes a bet with Spike -- one that seemed like a sure thing at the time, but later turns out to have been rather unwise. Luckily for Spike, Rarity owes Sweetie Belle a favor, a really big favor.

Cover art adapted from the NSFW original by kasaler.
All characters are aged up to legal age. Chapter 2 involves some dubious consent.
Audio Reading by ScarlettBlade

Published 2017-04-11 16:10:01 UTC
Last updated 2017-04-12 15:23:28 UTC

Winning the Bet

Sweetie Belle stepped a little closer to Spike once she got him alone in her bedroom, clasping her hands together behind her back and tilting her head in what Spike knew was the very cutest way the young mare could. “Hey, Spikey-wikey? Can I ask you something?”

Having dated Sweetie Belle for more than three years now, Spike could see through her feminine wiles. “You want something, don't you? Well, what is it? Out with it.”

“What? Me?” She smiled sweetly. “Nothing at all! I'm just—”

“Come on, Sweetie Belle, what is it?”

She sighed and rolled her eyes. “Fine.” She took a careful look around the bedroom, even though they both knew they had the room – even the whole house – to themselves, since her parents were out for the weekend. Then she leaned in close and whispered into Spike's ear, “I found a spell in Twilight's library, and I want to try it with you.”

“Huh? What's the big deal, then? You've been trying out new spells all the time ever since she started tutoring you.” That had been about the same time their relationship started, actually. They'd spent a lot of time together once she was coming to the castle on a weekly basis, and one thing had led to another ... it was never the most serious relationship; neither of them had ever mentioned marriage or anything, but it was still a lot of fun.

“It's a ... special kind of spell.”

Spike crossed his arms over his chest and cocked an eyebrow. “Special how?”

“It's, um, well...” She sighed. “There's no easy way to say it.”

“So just say it.”

Sweetie Belle shrugged, making her boobs bounce a little in the tight crop-top she was wearing. “The spell, um, gives me a dick.”

“What?” Spike jumped back a little, blinking at her. “What do you want a dick for?”

She toyed with her hair behind her neck for a moment, then looked up at him. “I was hoping ... maybe I could use it on you?”

Spike blanched. “Nope! Not gonna happen!”

“Oh come on! I'll be gentle, I promise.”

“Nope.”

“It'll be fun. Some guys really like it – maybe you will too, once you try it!”

“Nope.”

“Please...” She blinked at him with her big, adorable, and completely irresistible puppy-dog eyes.

“Nope.”

“Oh come on! There's got to be some way I can get you to do it!”

Spike shook his head. “Nope.”

“What if we make a little bet?”

“Nope.”

Undeterred, Sweetie Belle kept on, “If I win, I get to use that spell with you. And if you win, you can, um...” She tapped a finger on her chin for a moment before the light came on. “And if you win, you can fuck my sister!”

“N— What?” Spike stared at her, wide eyed. “What?”

“And if you win, you can fuck Rarity.”

Spike's jaw dropped. Rarity had been the object of his unrequited affection ever since the first time he'd laid eyes on her, back when he was a much younger dragon. Her beauty had completely infatuated him back then, and neither her looks nor his own ardor for her had faded as time went on. She had always been the unattainable goddess on a pedestal, an untouchable beauty who never favored him with anything more than a barely-more-than-friends peck on the cheek. Giving up on Rarity had been one of the things that led him to be interested in Sweetie Belle in the first place. For an impossible chance to do more with Rarity ... it was the opportunity of a million lifetimes!

“Spike? Are you okay?”

“Rar-i-ty,” he slowly breathed out, visions of her dancing before his glazed-over eyes.

Sweetie Belle waved her hand in front of his face. “Hey, Spike! Are you there? Snap out of it!”

“Wha-huh?” Spike shook his head and blinked, clearing out the visions and seeing Sweetie Belle in front of him again.

She put her hands on her slender hips. “Should I be jealous? I mean come on, could you be any more obvious?”

Spike looked askance at her. “After I forgave you for what you did with Button Mash? No, I don't think you should be jealous.” That seemed to have genuinely hurt her, though, so he quickly searched for a way to change the subject. “So ... what's this bet?”

Thankfully, that seemed to be enough to stop Sweetie Belle from going into a depressive spiral of wondering if he'd really forgiven her or not. She smiled again. “Right. If I win, I get to use that mare-dick spell on you, and if you win, you get to fuck Rarity.”

“But what are we betting about – how do we know which one of us won...?”

“Um... How about we have sex, and whichever one of us can get the other one off first is the winner.”

Spike grinned. He'd built up a respectable amount of skill with his forked tongue, and he knew he could get Sweetie Belle off with it in no time.

But Sweetie Belle must have seen his grin and known what it meant. “And no oral – for either of us. It wouldn’t be fair if only one of us is getting pleasure.”

Well, that changed things. They'd been getting close lately, but he'd never been able to get Sweetie Belle to orgasm from penetration alone. Taking oral out of the equation made it a risky bet indeed. And yet ... Rarity. It was a hard choice. He'd have to be sure of the stakes before he could commit to it. “How do you know Rarity would go along with it?” he asked, narrowing his eyes.

Sweetie Belle grinned mischievously. “I have my ways. Just believe me – I can get her to do it.”

Well, Sweetie Belle had never been the type to lie in the past ... at least not blatantly to his face, like this. Was it worth the risk? The idea of Sweetie Belle growing a dick and using it on him was unpleasant and gross, but ... it wouldn’t be the end of the world – he could just bear it for a few minutes and then do his best to forget about the whole thing, and it would be over. A chance at Rarity, though ... that was something he would gladly remember for a lifetime! And it was something he'd probably never get any other way...

He took a deep breath. “Okay. I'll do it.”

Sweetie Belle covered her gaping mouth with her hand. “Oh my gosh, really?”

“Yeah. I'll, um ... I'll take that bet. You're on.”

She gave an ear-piercing squeal, then jumped on him, wrapping her arms around the back of his neck and sending him teetering off-balance. Her short pink skirt rode up over her pale thighs, leaving nothing but her thin panties separating her from his belly. Spike's arms pinwheeled, but he couldn't catch his balance quickly enough. He fell over backward onto Sweetie Belle's bed, and she landed on top of him.

Already biting her lower lip, Sweetie Belle wasted no time in pulling at Spike's plain black T-shirt. Before he could do anything, she was pulling it over his head with one hand, the other hand busily exploring his scaly chest.

He helped her get that off of him, then pulled her down to lay against him and kissed her, slipping his long tongue between her lips just the way he knew she liked it. If he was going to win this bet, he'd have to be totally focused on what she liked, and he'd have to actively avoid the things he knew turned himself on.

Not that he was being particularly successful in not getting turned on. Sweetie Belle's pink ruffled skirt was splayed out over his crotch, and underneath it, Sweetie Belle was tenderly rubbing her panties up and down over the growing bulge in his pants.

Soon, making out with a shirtless dragon wasn't enough for Sweetie Belle. She hopped off of him, unbuttoned his pants, and pulled both them and his underwear off in one too-fast jerk.

His pointy, reddish cock sprung free, and Sweetie Belle eyed it hungrily, moving in close.

Spike stopped her by pressing a finger against her nose. “No oral, remember?”

She blushed. “Oh, right...” It only took her a moment to get over her embarrassment at losing control, though. Standing up straight, she reached up under her skirt and pulled down her lime-green panties, letting them fall to the floor and kicking them aside with one hoof. Coming back to Spike, she straddled his crotch again, her tongue sticking out of her mouth cutely for a moment as she rocked her hips, positioning herself just right.

Spike smiled when he felt a strand of warm wetness drip down from Sweetie Belle's pussy. This little bet was turning her on more than usual, which should give him an advantage.

Slowly, Sweetie Belle lowered herself down on him, giving him the sweetly familiar feeling of sliding into her warm, welcoming pussy. He couldn't see it, but he could feel every bit of her slick wetness as his cock glided easily into the young mare. A blissful moment later, Sweetie Belle's ass cheeks pressed against his thighs, and his entire length stood proudly inside her.

It didn't go in as far or stretch her as wide as he might have wanted – that was always a source of some anxiety and feelings of inferiority in him. Being a dragon might have lots of advantages over being a pony, from the ability to eat delicious gems to being completely fireproof ... but dick size was decidedly not one of a dragon's advantages, not when compared to pony cock, anyway. Worse was the nagging fear that his not being hung like a horse was the reason Sweetie Belle had never gotten off from intercourse alone. For the sake of this bet, he hoped that wasn't the case.

After taking a moment to adjust to the feeling of dragon cock inside her, Sweetie Belle began to move, rocking her hips back and forth. “Oh Spike,” she whispered in his ear, “it's so hot.”

At least he had that going for him. Dragon body temperature was always a lot higher, and Sweetie Belle had always said she loved how warm he felt. He ran his hands up her thighs, sliding up under her skirt as she moved. When she moaned, though, it made him remember what he was doing, what his real goal here was. So instead of grabbing for her firm, teenaged ass cheeks, he slid his hands higher, grabbing her hips just above her cutie marks and helping her rock faster. With any luck, this would get her off in no time...

He wasn't the only one who knew how to please the other, though. Giving him an evil grin, Sweetie Belle grabbed the bottom hem of her tank-top and pulled it up over her head. Her perky white breasts bounced free, tantalizing him with their little pink nipples. They were gorgeous, each just big enough to fill up one of his hands; once free of the constricting fabric, they jutted outward prominently, defying gravity in their mesmerizing, jiggly way. His hands shot up to touch them before he could even think about it, and soon their soft, fuzzy roundness filled his palms.

Biting his lips, he tried to move his hands back down, but he just didn't have the willpower. Why did he love pony tits so much, anyway? Back when he'd had that fling with Ember, he'd learned what sex with a real dragoness was like, and it was amazing, but... Somehow, he missed the feeling of velvety fur against his scales, and the slight nipple-less bulge of Ember's scaly chest hadn't satisfied his need for soft, squeezable boobs. Apparently, being raised among ponies had left him with a pony fetish that could only be satisfied one way.

Still, even if his silly fetish was too strong for him to give up a perfect opportunity for caressing Sweetie Belle's perfect tits, he could at least do it in a way that would give her more pleasure. He pressed them softly together and upward in the way he knew she liked, and he tweaked her lovely nipples between his thumbs and fingers, making them get a little harder and poke out more.

Sweetie Belle arched her back, wrapped her arms behind Spike's head, and pulled his face right into her cleavage.

Spike moaned into the heavenly softness, running his tongue along the velvety curves even as he kept squeezing and rubbing with his hands. She really knew what he liked ... but she seemed to be getting into it herself, making tiny little squeaking noises every time she bottomed out on his cock and beginning to slide her hips against him faster and faster. This was it! She was finally going to get—

She stopped, then stood up, letting his cock slide out of her. Her chest heaved with her panting breaths, but apparently she still had control over herself. Riding him like that was always how she'd gotten closest to getting off, but she apparently had the presence of mind to stop when she was getting close. That wasn't good news for Spike's chances of winning the bet.

Neither was the position she took next. Sweetie Belle hopped up onto the bed and got down on her hands and knees, facing away from him with her legs held tight together. Her tail rose, slowly lifting the back of her skirt up to expose the enticing gap between her thighs, then the round cheeks of her ass, and finally her sopping-wet mound. She looked back over her shoulder and gave a sly grin, knowing the effect it would have on him.

And he was powerless to resist that effect. Even though he knew he got off easily in that position and she never did, he still moved over to get behind her, grabbing his cock to get the pointed tip lined up. For a moment, he was almost able to stop himself, but then Sweetie Belle leaned backward, enveloping his cock in her eager pussy.

He groaned and grabbed her hips through the skirt, pulling her even closer. There was just no helping it. Nothing mattered in that moment but the feeling of her inner walls squeezing around the wide base of his shaft.

After a few gentle thrusts in and out to get started, though, he came back to himself a little. Usually, in this position, he'd lean over her back and cup her breasts in his hands as he pushed into her hard and steady ... which would quickly lead to him blowing his load as deep inside her as he could go.

That wouldn’t do for this time, though. Not at all. Instead, he stood up straight on his knees, even leaning a little bit backward, and started using his hold on her hips to move her forward and back, pushing her and pulling her over his cock.

Sweetie Belle moaned and threw her head back, looking up at the ceiling. It was working!

He increased his pace, pounding into her harder and faster. Despite knowing it would only get him closer, he couldn't help but look down at the marvelous view – Sweetie Belle's plush white pussy lips bulging open again and again as his reddish cock slid inside, framed by the perfect curves of her ass.

From the way Sweetie Belle was moaning, it sounded like she might actually be getting close ... but she wasn't out of tricks to play yet.

Reaching back with one hand, she stopped Spike in mid-thrust. Then, with a deft bit of wiggling, she crossed her legs. Once she managed that, she gave Spike a knowing look and pushed herself back onto his cock.

Spike grunted from the effort of holding back his orgasm. She was so much tighter when she did that! It wasn't fair! That extra little bit of tightness was finally enough to squeeze down on his dragon-size cock with serious pressure. He could feel her heartbeat from the inside as his narrow tip probed as deep as he could reach. He gave her a few slow thrusts, but already he could feel his climax building. She was just too good!

But there was one more thing he could try...

Lengthening his strokes, he gradually built back up to the pace he was at before. He still rammed himself as far in as possible every time, but now when he pushed Sweetie Belle's hips away, he pushed her farther and farther, letting his cock slide even more against her sensitive entrance. With just a bit more, he started pulling himself all the way out of her each time, then sliding it back in, making her pussy lips gape open slightly every time he pulled back.

“Aaah! Spike,” Sweetie Belle cried out as her slick inner walls squeezed him even tighter, as if trying to hold him in each time. “It's too much – I can't... Aaah!”

Despite Sweetie Belle's squealing, Spike didn't let up. He knew she was getting close. Maybe, just maybe, he'd finally do it, finally get her off!

Sweetie Belle's body jerked every time he slid into her, then jerked again when his hips smacked against her cute little ass. Her legs trembled, and she could barely stay in position – she probably would have collapsed if Spike hadn't been holding her tightly by the hips. And still he kept going, even as he began to feel a little winded. Just a little more...

A long, shrill squeak escaped Sweetie Belle's throat as she pushed herself back against Spike one last time. Her pussy clenched down on him hard, squirting a spray of her juices all over his balls. She jerked and shuddered in place, milking his cock for the seed that just wasn't coming ... not yet.

Spike groaned at the amazing new feeling, and he smiled when he realized he'd won the bet – Sweetie Belle's orgasm had been way too obvious to deny.

She dropped away from him, flopping down onto the bed and facing the ceiling. Her chest heaved up and down as she panted. Spike licked his lips, looking at the way her slim belly arched up from the bed, the way her boobs rose and fell with her breathing, and the way her sprawled legs put her cute pink slit on full display. Slowly, she began to catch her breath and calm down.

“So,” Spike said, “usually I get off first and then finish you up with a little oral, but since you got off first this time...?”

She raised her head to look at him, then shrugged. Without missing a beat, she rolled over and spun around, lifting herself up to just the right height and taking his already-wet cock into her mouth.

“Mmm...” Spike brushed her now-frazzled mane out of her face. “Oh yeah. That's good...”

Sweetie Belle glanced up at him deviously for a moment, her lips still puckered around his narrow tip. Then she effortlessly slid him all the way in, until her mouth pressed against the slight gap between scales that his cock poked out from. She made it seem like it was no effort at all to deep-throat her dragon.

Fucking her hard had already gotten Spike excited, so when she started bobbing up and down, taking every inch of his length each time, he knew he wouldn't last long. Her skilled tongue and soft throat were just too much. Sweetie Belle didn't do oral often ... but when she chose to do it, she was a master! When she reached up and gently cupped his scaly balls in one hand, that tipped him over the edge.

Groaning loudly, he let loose the first stream of hot dragon cum straight down Sweetie Belle's throat.

Though she swallowed that easily enough, Sweetie Belle still pulled a little way back, holding her mouth open and resting the pointy tip of his cock against her tongue. She let the rest of Spike's throbbing spurts splatter against the back of her mouth, though she still had to swallow frenziedly to keep pace – dragons might lack the sheer, imposing size of a stallion, but they could more than hold their own when it came to volume.

Eventually, though, even Spike's impressive reserves began to run dry, lazily dribbling out the last few dollops of hot white cum onto Sweetie Belle's waiting tongue. Once his body jerked with the very last spurt, Sweetie Belle sucked one more little drop from his tip, then tilted her head back and swallowed what was left in her mouth. When she was done, she wiped her lips with the back of her hand and looked up at him with an open-mouthed grin, showing not a drop of white left on her tongue.

She was just too cute like that! Spike reached down and swept her up into his arms, kissing her right on her extra-warm and extra-wet lips.

After a moment, both of them collapsed down side-by-side on the bed, still wrapped in each other's arms, their bodies pressed tightly together.

For a long while, they lay together in happy silence, just enjoying the afterglow and slowly letting their heartbeats quiet down a little.

Sweetie Belle's eyes were drooping as if she was drifting off into a nap ... but Spike nudged her nose with his own, waking her up for a moment. “I guess I won the bet, then, huh?” he said.

She grimaced, but begrudgingly nodded. “Yeah, I guess so.”

“So ... how does that work?”

For a moment she just stared blankly past him, but then she sighed. “I guess just meet my at my house tomorrow, and then we'll go over to Rarity's... Ugh, I can't believe I lost.”

“It can't be that bad, can it?” Spike ran a hand through her mane, straightening it some.

She shook her head. “Just hold me, okay?”

They spent the rest of the afternoon entwined naked with each other on the bed as Sweetie Belle dozed fitfully, but Spike's thoughts were far afield: he was busy running through every sexy memory of Rarity he could drudge up – the bikini she wore during the trip to the beach with Twilight and her friends featured prominently – which ended up giving him another boner. Sweetie Belle ignored the warm flesh poking against her thigh, though, and Spike did his best to ignore it as well. But that wasn't easy, given how much his thoughts returned to what was going to happen tomorrow.

Author's Note

Just like Spike, you'll have to wait until tomorrow to see Rarity ... unless you're one of my Patreon supporters! :raritywink:

This story was chosen by my Patreon supporters! Every month, I take suggestions from my supporters and let them vote to determine which story I'll write next.

If there's something you've been dying to see me write, please go to my Patreon page and sign up to be part of the suggesting and voting process.

Claiming the Prize

The next morning – at Spike's insistence – the two of them headed over to Rarity's house bright and early, first thing in the morning. Well, perhaps not that early. Spike was a heavy sleeper, after all. But still, he couldn't wait to get there ... he wouldn't have slept in so long if he hadn't been kept awake so late by thoughts of what would finally happen when he got to Rarity's house.

Sweetie Belle wasn't quite so enthusiastic about it, though. She'd made a few comments about perhaps saving his prize for later, or maybe even calling the whole silly bet off ... but Spike hadn't given her any leeway. She'd made a bet, and she'd lost it – it was too late to change anything now.

When they arrived at Rarity's door, Spike moved to touch the doorbell, but stopped when Sweetie Belle simply opened the door and walked right in. A sister's privilege, he supposed.

Once inside, she yelled out, “Hey, Rarity, are you home?” Instantly, not allowing any time for her sister to respond, she shrugged and shook her head. “Oh no, it looks like she's not home right now. We'll have to leave and try again later.”

Rarity came down the stairs, brushing a comb through her mane as she walked. “What was that last part, Sweetie Belle? I don't think I heard you properly.” She looked up and saw them both. Even though it was mid-morning on an ordinary Sunday, she wore a gorgeous purple satin gown, with a deep 'V' showing off her generous cleavage and a slitted side coming up high enough to show a sliver of her cutie mark. “Oh, and you brought Spike. Is there something I can do for the two of you?”

Spike grinned. There most definitely was something she could do for him.

But Sweetie Belle looked away, crossing her arms in front of her as if she was cold. “Um, no, not really. I'm sorry we bothered you. I'll just be going now...”

“Hey!” Spike grabbed her by one arm before she could escape. “You can't back out now – we had a bet!”

“Oh, it would be something as juvenile as a lost bet, wouldn’t it? Well, out with it. What was this bet?” Rarity came the rest of the way over to them and stood with one arm propped against the flare of her hip. She looked pointedly at her sister, waiting for the explanation.

“It's, um ... nothing.”

“Don't hide this from me, Sweetie Belle. Spike seems to think it's important, and if it involves me, I need to know.”

A long, tense moment of silence overwhelmed the boutique as Sweetie Belle squirmed under her older sister's gaze. Eventually, she gave in with a slight groan. “Fine... I, um, I made a bet with Spike, and he won. And, well...” She looked all over, searching for some distraction that would absolve her of the need to continue, but nothing presented itself. “Well, I told him that if he won, he could...” She cringed down and her voice dropped to a whisper. “... have sex with you.”

“You told him what?” Rarity's jaw dropped and she jumped backward, which made her boobs jiggle in her dress. “Sweetie Belle! The nerve! What makes you think you can offer something like that?”

Somehow, Sweetie Belle managed to wrap her arms around herself more, cringe down more, and become even smaller-looking than she already was. “Do you remember when I saw you doing that thing with those stallions last summer? And remember how you said you'd do anything for me if I just kept it a secret?”

Rarity's face became even more pale. “Oh no...”

“Well, I kept it a secret, and now I guess I need you to do, um ... anything.”

“But Sweetie Belle! I can't! Spike is underage – it's illegal!”

Spike stepped forward and butted into the conversation, slightly miffed at still being thought of as a child. “Hey! I'm older than Sweetie Belle, and she's been of legal age for three years already – ever since she got her cutie mark. Dragons don't get cutie marks, so ... what? I never become legal age?”

“No, no ... of course you do. Eventually. Just, er, not yet.” Rarity glanced quickly back and forth between the two of them.

“I am legal,” Spike said, pouting a little. “I've been legal for years. Come on, Sweetie Belle, make her do it.”

Sweetie Belle nodded slowly. “He is totally legal. I actually checked with Mayor Mare before I did anything with him, and she said that he should be legal by the time everyone his age has their cutie marks.”

“But Sweetie Belle!” Rarity took a few steps backward. “It's Spike... Little Spikey-wikey! I couldn't possibly... What would Twilight think? I can't have her thinking I seduced her innocent assistant!”

“Twilight doesn't have to know,” Spike said. “And even if she does ... so what? I may be her assistant, but I'm my own dragon. I don't need her permission to fool around.”

“But just think of what a scandal it would be!” Rarity held her fingers to her mouth, seeming to keep herself from biting the perfect manicure by willpower alone.

Sweetie Belle finally seemed to open up a little, uncrossing her arms and holding them akimbo. “Oh yeah, well, you know what else would be a huge scandal? If anypony found out about what I saw you doing with those stallions!”

“What did she do with those stallions? And who were they?” Spike whispered to her from the corner of his mouth.

“I can't tell you,” Sweetie Belle replied. “I have to keep it a secret ... as long as Rarity keeps her side of the bargain.”

After a long, tense moment of scrunching up her pretty face, Rarity finally broke. “Okay, fine! Just please don't tell anypony!” She took a few deep breaths, coming to terms with the implications of what she'd just said. “So, when do I have to, er ... shall we say, keep my side of the bargain?”

“How about right now?” Spike said with a quick grin.

“Now? But ... but...” Rarity sputtered, but she couldn’t seem to find any ready excuse. “But I need to wash my hair!”

“Your hair is fine. And you can wash it afterward if you want.” Spike took a step toward her.

She took a step back, maintaining the distance between them. “But, but ... I...” Her words caught in her mouth; she couldn’t come up with any other excuses. But, suddenly, her eyes lit up as if she'd thought of just the perfect thing. “Oh, very well, then,” she said, smiling now. “Come with me, Spike. Just don't go thinking you can get an extra time by telling Sweetie Belle I didn't follow through. She knows I'm a mare of my word.”

“Uh-huh,” Spike said skeptically. But he followed her all the same when she turned and sashayed back toward the stairs, and he eyed her swaying ass hungrily as he climbed the steps behind her. The slinky gown clung to her curves with every step, and it was so thin that he could clearly see the T-shaped lines from her tiny thong underneath.

Rarity obviously knew the effect this would have on him, and she played up every moment of it, putting an extra swing in her step just to show off.

The moment they were inside her bedroom and she'd locked the door behind them, though, she instantly dropped the act. Now she was cold and distant, as untouchable as ever. “Okay, Spike, this is how it's going to work,” she said. “We are going to wait here – completely clothed, mind you – for an appropriate amount of time, and then we're going to go back downstairs and I'm going to tell Sweetie Belle that I had sex with you. If you promise to tell her the same, I will give you one kiss. No tongue, and no funny business. But even if you go down and tell her what actually happened, she'll only assume that you're trying to get a second helping for free.”

“Hey, that's a lousy deal!” Spike threw his hands up in the air. “I mean come on, is the idea of having sex with me that bad?”

“No, no! It's just... Well, I've known you since you were just a little dragon, and I can't help but see you that way, I'm afraid. I couldn't possibly sully that by ... you know.”

“This is so bogus! I'm going to go get Sweetie Belle.” Spike turned for the door, ignoring Rarity's protests. He unlocked it and yanked it open.

To his shock, he found Sweetie Belle standing right there in front of the door, her eyes wide open and her arms pinned to her sides.

“I wasn't eavesdropping!” she squeaked out. “And I definitely wasn't peeking through the keyhole! No, I was, um...” She glanced around, then pointed tersely down the hall. “I was just heading for the bathroom.”

Sure she was... Spike was well aware that Carousel Boutique had a perfectly good downstairs bathroom in addition to the one at the end of this hallway, but that wasn't the issue right now. He glanced back into the bedroom at Rarity. “Well, if you had been eavesdropping, you would have heard that Rarity was planning to cheat on her deal. She was going to say she had sex with me, but not actually do it.”

“Rarity!” Sweetie Belle looked in on her older sister through the door. “Is that true?”

“What? Of course not!” Rarity waved off the accusation.

But Sweetie Belle wasn't buying it. “Rarity...”

“Okay, fine! It's true. But seriously, you can't expect me to actually go through with this, can you?”

“I do expect you to hold up your side of the deal.” Sweetie Belle pushed Spike out of the way as she stepped in through the door. “And I'm going to stay and watch to make sure you do!”

“You can't be serious...”

But Sweetie Belle was serious. She grabbed Spike's shoulders and marched him over to stand squarely in front of Rarity. “Okay, Spike, touch her tits.”

Rarity blushed a deep red, and Spike gasped. He was standing right there in front of her ... she was still a little taller than him, and the clingy, low-cut gown put Rarity's breasts on perfect display. As her nipples began to poke out against the thin fabric, it became abundantly clear that she wasn't wearing a bra. He gulped. Could he really ... just reach out and touch them?

Though she trembled where she stood, Rarity didn't do anything to stop him as Spike's hands slowly rose up to hover in front of her chest.

Rarity looked down at his hands, then back up at his face. “Spike...?”

She never got to finish whatever she was about to say, though, because Spike finally committed to the touch and moved those extra couple of inches. His hands softly came into contact with Rarity's huge, round boobs, mostly through the fabric of the gown, but his thumbs and a couple of his fingers found the opening in between and brushed across the deep curves of her cleavage.

For Spike, it was a breathtaking moment, finally getting his hands on what he'd fantasized about for so long. His outstretched fingers couldn't even reach all the way around her marvelous boobs, but he felt their gentle firmness and perfect curvature through the thing fabric. It was pure bliss.

“Oh, Spike,” Rarity cooed. “I suppose I could stand to reward you a little for all those years you followed me around, obeying my every whim.” She reached up and hooked her thumbs under the shoulder straps of her gown. “Here, let me help you...” Pulling the straps off her shoulders, she let the gown fall. The flimsy material slipped down and peeled itself away from her.

Spike had to let go of her boobs for briefly in order to let the fabric fall free, but he was glad he did. It took only a moment for it to slip down over her chest, leaving her fabulous tits completely bare. He licked his lips when he first caught a glimpse of her big, pink nipples, then wasted not a moment more in reaching out to grab her bare breasts, gently fondling them this time and teasing her nipples between his fingers.

Rarity gave a theatrical moan at the little bit of stimulation, but Spike began to realize that Rarity's boobs felt kind of ... weird. He hadn't touched very many boobs in his life, but these felt different than all the ones before. They weren't soft and squishable like Sweetie Belle's. Their plush fur and delicate skin beneath both felt wonderful, but it was almost like there was a huge, hard mass inside. He could move it around, but he couldn't squeeze it like a real boob...

Not like a real boob... Spike's eyes shot open wide, and he lifted one of her breasts, looking underneath at the crease where it met her chest below. Sure enough, there was a little sliver of white scar tissue there where the fur hadn't grown over. He took half a step back ... but still didn't take his hands of her boobs.

Still, his face must have shown the betrayal he was feeling, because Rarity reached up and brushed his cheek. “What's wrong, Spike?”

“They're ... they're fake.” It felt so wrong to say it, but it was undeniably true.

Rarity giggled. “Why, of course they are, dear. I got implants just a couple years before you and Twilight came to town. More of a business investment than anything else, honestly. You wouldn’t believe the difference a few cup sizes can make in the fashion world.”

His hands fell away. “But ... but...”

“My goodness, you didn't actually believe they were real did you? Oh, darling. What mare could possibly have a bust line like this—” she pulled his hands back, pressing hers over his “—naturally?”

Spike blushed a little. Of course it would be a ridiculous assumption to make, thinking that boobs that big on someone of Rarity's size could be real. But he had been much younger and less knowledgeable when he first saw Rarity, and though he'd learned a lot since then, he had never questioned his younger self's assumption that Rarity was the pinnacle of natural beauty.

“Oh dear... You did think they were real, didn't you?”

Spike nodded sheepishly ... though he still didn’t let go of her tits. Even though he knew they were fake now, it still brought him a thrill to be touching such forbidden fruit, and he didn't want to waste a moment of this precious time by not touching her. After all this time secretly staring at her and wishing he could even get a single good look at her, to be touching Rarity like this was a life-altering experience. It was an electrifying thrill to feel the velvety fur of her breasts, to be doing something that would be absolutely off-limits under any normal circumstances.

Rarity looked down at his slowly-shifting hands and smiled. “It seems you're quite fond of them, though, even after the illusion is broken.”

“It's just so ... special.” Spike tore his gaze – but not his hands – away from Rarity's chest, instead looking up into her gorgeous eyes. “You've always been special to me ... Rarity.” He leaned in closer, tilting his face up toward hers.

She gave him a little kiss on the nose. “Oh, Spike. That's very sweet of you, and you've always been very— Mmm!”

Spike darted in and kissed her full on the lips, giving her tits a healthy squeeze as he made contact.

Rarity moaned into his mouth – it started out as more of a squeal of surprise, but by the time their lips separated, it was clearly the sound of a mare's passion being aroused. She'd gotten a small taste of his intense body heat, and before he could say anything else, she dove in for another. Wrapping her arms around the back of his neck, she pulled him in and slipped her tongue between his pointed teeth.

By the time they parted again, Rarity was gasping for breath, her boobs surging up and down under Spike's eager hands. Rarity's own hands began to wander, tracing down over Spike's back, gripping his sides, and even grabbing his butt.

It was the devious look in her deep blue eyes that made his heart pound double, though. She hooked her thumbs into the waistband of his pants, and she began slowly sliding them down, letting herself gradually fall lower in front of him as she did.

For a short time, her face was at the same level as his, and they took advantage of it by sharing another quick kiss.

But a moment later, the waistband of his pants pulled far enough down for his cock to finally spring free, and Rarity's descent quickened. Spike reluctantly let his hands slip away from her boobs, and before he knew it, she was on her knees in front of him. She stared eye-to-eye with his red, pointy cock. Her gown still hung around her waist, exposing her huge, perfectly round tits as she looked up at him and grinned coyly.

Spike couldn't breathe. Was Rarity about to do ... that? It didn't seem possible. But then again, merely seeing her boobs would have seemed utterly impossible, and he'd just touched them. Anything could happen!

When she reached up and casually grabbed the middle of his shaft with her hand, it made him jump with the jolt as the pleasurable shock of her first touch shot through his whole body. Slowly, she leaned down toward his tip; he couldn’t look away from her beautifully delicate lips as they drew closer and closer.

Just before they touched him, with only a hair's breadth between, Rarity looked up at him again. “I bet Sweetie Belle doesn't do this with anything near my skill.”

“Hey!” Sweetie Belle shouted from behind him indignantly.

Spike chose to stay diplomatically silent on the subject. He knew Sweetie Belle's blowjobs were top-notch, but it would be an inopportune time to say so. He could mollify Sweetie Belle's outrage later.

Grinning slightly from Sweetie Belle's outburst, Rarity closed the last little gap, kissing the tip.

All Spike could do was stare, slack-jawed, as he watched and felt the impossible happen. Rarity's beautifully sculpted lips parted around his thin tip, and she gradually began sliding his hot length into her mouth. She felt slick and silky-soft against his most sensitive skin, and as she took him in a little deeper, he could feel her delicate tongue sliding sensually against the underside of his cock.

Even Spike's well-worn fantasies had never dared picture such a scene. He had always thought of Rarity as too pure for that, too ladylike to degrade herself. But as she made it halfway down his cock, she began stroking her hand in a spiraling motion over his thick base, and he had to admit that this was another misconception he'd been harboring about Rarity. She was good at this, really good – there was no way she hadn't done this before, probably lots of times.

But he couldn’t complain. No, he groaned in pleasure. Rarity was perhaps not as enthusiastic as Sweetie Belle, but she more than made up for it with her delicately-honed skill. Her lips and tongue slid up and down on him so perfectly, and her hand squeezed with just the right amount of pressure.

Without thinking, he reached down and touched the back of Rarity's head, running his fingers through her perfect mane as he got ready to—

Rarity swatted him away with her free hand, then pulled her lips off of him – making him suffer her absence momentarily. She gave him a reproachful look. “Spike! One does not do that to a lady!”

Spike pulled his hands away from her, holding them out about as far from her as he could. “I-I'm so sorry! I won't do it again, just please don't stop...”

“But I will take that to mean that you're ready for a bit more,” Rarity said with a grin, dipping back down and resuming her wonderful work on him. Now she took more and more in with each bob of her head, forcing her hand lower on his base ... and eventually off of his cock entirely. She used it instead to cup his scaly balls as she swallowed every inch of his dragon cock over and over again.

Groaning and trembling, Spike struggled to hold himself back, to enjoy this one-in-ten-lifetimes moment for just a bit longer...

Rarity must have been able to feel him getting close, though. And she seemed to like it. She buried her face in his crotch and moaned around his cock, gently squeezing his balls as if she desperately wanted his cum.

And cum he did. Unable to hold it back a moment longer, he shot his load straight down Rarity's pulsating throat. Hot dragon cum flooded into her ... and she didn't back down in the slightest. Her lips remained pressed against his crotch, and she swallowed valiantly, keeping up with the intense flow ... for the most part.

Even she couldn't handle all of it, though. She coughed and pulled back, a little bit of cum dribbling from the corner of her lips as she took Spike's last few squirts into her open mouth. By the time he finally stopped, she'd closed her lips around his tip again, and her cheeks were bulging out. Her throat bulging with each swallow, she managed to down the rest, her cheeks slowly returning to normal. Then she finally pulled away from him, cleaning her lips with a swipe of one finger and sucking the finger clean.

Spike stumbled drunkenly for a moment before collapsing onto Rarity's bed, lying face-up with his tongue hanging out as he panted for breath. He'd never tell Sweetie Belle, but that had probably just been the greatest orgasm of his life so far.

Getting back to her feet, Rarity looked over at Sweetie Belle. “My goodness... You need to take better care of him, Darling. I have never – never – spilled a single drop before, even with the most prolific of stallions ... and yet, you've gotten poor Spikey-wikey here so pent up that I nearly stained my gown!”

“Actually ... he kind of always cums like that.” Sweetie Belle giggled. “Maybe I should have warned you.”

“Does he now...?” Rarity turned toward Spike and gave him an appraising look.

“Hey,” Sweetie Belle snapped, “don't look at him like that! You've both had your fun, and the deal is finished. Let's go home.”

Rarity scoffed at her younger sister. “Finished? Hardly. We haven't even gotten to the main event yet, have we, Spikey-wikey?”

Spike gave an incoherent groan. It was the best he could do at the moment.

“Hey! You already did it with him, and he's obviously too tired to go again anyway. The deal was that he gets to have sex with you once, and that's it!”

Smirking, Rarity unzipped the back of her gown and slid it down over her hips, letting it drop to the floor. “Oral doesn't count, obviously. That was merely a bit of foreplay. But you do have a point about him being momentarily spent... I wonder if he's any good with that tongue of his?”

“Oh come on!” Sweetie Belle squealed.

But Rarity ignored her, instead sauntering over to the bed. She hopped on, ending up on her hands and knees with her ass right in front of Spike's face.

That was finally enough to rouse him from his stupor. He looked up to see the glorious full curves of Rarity's ass, covered by nothing but an incredibly skimpy red thong. It was too thin to even cover her entire pussy – her outer lips bulged out slightly on either side of the thin red silk. All he could do was stare...

Until Rarity spoke, that was. “Oh, Spike,” she said melodramatically, “I do fear that I might require some assistance with this last garment. Won't you please help me?”

There was no way Spike was going to turn down a request that polite, no matter how tired he felt. He reached up toward her, gratuitously grabbing her soft ass cheek along the way, and then slowly pulled the thin straps of her thong down. He watched, fascinated, as the thin fabric peeled away from her pussy, a tiny trail of moisture connecting it for a moment before he pulled her panties the rest of the way down to her knees.

Rarity wiggled her hips back and forth playfully, showing off her naked pussy lips. Before Spike could get more than a grazing touch on them, though, she stood up on the bed and slipped her panties the rest of the way off, kicking them onto Spike's already-reemerging cock. “I do believe it's time for you to return the favor,” she said, swinging one leg over him.

Spike could only stare in awe as Rarity lowered herself down to straddle his head. Her flawless alabaster-white pussy lips came closer and closer, and as she spread her legs over him, he could see her wet pink slit in between them.

She ended up kneeling right on top of his face, with her tail draped down across his chest.

This was a whole new level of impossible views for Spike – his mind raced with fantasies that had been fueled by seeing just a hint of cameltoe on Rarity's bikini bottom ... and this time, he found that the utter perfection he'd always imagined for Rarity had actually been accurate. Her ladylike mound was as prim and tidy as he could ever hope for, and her inviting slit dripped with crystal-clear juices just begging for a taste.

“Well, are you going to start or not?” Rarity said.

Spike hadn't realized he was zoning out. He made up for it by lifting his head up to her and diving in with a passion. Her pristine juices smeared over his muzzle as he kissed her pussy like a long-lost lover, and he grabbed the plush cheeks of her ass to pull her closer.

“Oh yes!” Rarity gave a slight moan. “Now that's more like it!”

But Spike grinned against her pussy lips. He was only getting started, and he hadn't even really used his greatest asset yet. It was time to show Rarity what he could really do.

He started by just teasing Rarity's clit a little, lightly flicking the forked tip of his tongue over it, but that was just the preview. Even that was enough to get Rarity to moan loudly and jerk her hips back and forth a little over his face. But he'd be wasting the incredible length of his tongue if he kept it outside. Flicking the tip a little lower, he parted Rarity's soft pussy lips and teased her entrance.

When she pushed down onto him, pressing herself tight against his mouth, he took that to mean that she was ready for all of it.

Savoring Rarity's distinctive taste, Spike plunged his tongue deep, deep inside her, easily sliding it all the way in as far as she could go. As Rarity yelped in pleasant surprise and her pussy squeezed down on his tongue, he began to writhe it around, massaging every recess of Rarity's dulcet inner walls.

Rarity's tail flicked across Spike's chest, and her hips gyrated across his face, rubbing herself over his lips as his tongue worked its magic deep inside her. From the way her pussy was squeezing tighter and tighter, he knew she was already getting close.

But he wasn't done yet. Using even more of his nearly limitless tongue, he kept the tip deep inside her while beginning to lick up and down over her clit in long, sensual strokes.

The effect was immediate. Rarity froze in place, squishing Spike's head down into the soft blankets as she gasped in one more deep breath. Her whole body jerked, and Spike drank in her orgasm as she screamed her passion up to the ceiling.

Only when Rarity finally relaxed did Spike slip his tongue out of her, which brought its own little convulsion.

“Careful,” Rarity said softly. “So sensitive...”

His face still sandwiched between her thighs, Spike ran his hands over as much of her body as he could reach ... which, unfortunately, didn't quite include her breasts.

When Rarity looked behind her, she grinned and nodded. “Yes, it seems that was just what you needed.” She reached back with one hand and grabbed his raging erection. “So, are you ready for the 'main event'?”

Spike nodded as eagerly as he could, given that his head was squeezed between Rarity's inner thighs.

With a bit of an awkward struggle, even for somepony as graceful as she was, Rarity managed to work her way down Spike's body, scooching herself bit by bit until she hovered above his enthusiastically bobbing cock, rather than his face.

Not one to miss out on the opportunity, Spike reached up and grabbed Rarity's nearly-spherical boobs again. He fondled them reverently as Rarity made the last few adjustments to her position to get everything lined up just right.

Rarity lowered herself just a little, and Spike's warm tip brushed against her soaked pussy lips.

Spike all but forgot his hands on her boobs, watching in utter fascination as Rarity slowly let his cock enter her. At first, it was just his pointed tip barely parting her plush outer lips ... but then she slid down just a bit more, and that point disappeared up into her. It was now undeniable, official, indisputable: he was having real, actual sex with Rarity.

He trembled in place as Rarity lowered herself down further, more and more of his dragon cock easily sliding into her.

Rarity didn't stop her smooth descent until her pussy splatted against Spike's scaly underbelly. “Mmm,” she cooed. “The base of your endowment is so ... girthy.”

Focusing on just enjoying the incredible moment, Spike tried to cast aside any thoughts about how Rarity might have just been being polite when she chose to mention how thick he was at the base of his cock ... and not mention that he probably wasn't long enough to fill her all the way. No, he would try to just enjoy the heady feeling of Rarity's inner walls pressing against his cock while her boobs more than filled each of his hands. His eyes drank in every detail, subconsciously storing it away to give him material for a lifetime's worth of private fantasies later.

Slowly, Rarity began rocking her hips back and forth, making him move inside her. “Oh, and it's so warm!” She stroked a finger across his cheek. “I simply can't believe I've been missing out on this, all this time!”

Spike's face flushed bright red, whether from her words stroking his ego or her pussy stroking his cock, he couldn't tell. But she did feel amazing ... and unexpectedly, she actually seemed to be a little bit tighter than Sweetie Belle. His back arched as Rarity traced her fingernails over his chest. “Oh Rarity, you're so good!”

Giving him a grin that dripped with satisfaction, Rarity increased her pace, beginning to breathe a little heavily as she rocked back and forth on top of him.

He was already getting close – he could feel the pressure building. Rarity was just too amazing, and she felt so good – there was no way he could hold on for long. But that didn't mean he was going to just take it lying down! She felt amazing on top of him, but there was one more thing he wanted to do for his fantasies to be complete...

With a little help from his muscular tail, Spike flipped both himself and Rarity over on the bed. She squealed in surprise, but still managed to fall daintily, landing in a luxuriantly sultry pose. Spike grabbed her by the legs and pulled her to the edge in one feral motion, then stood at the edge of the bed, over her sprawled-out body.

Rarity stared at him with wide-open eyes, her boobs pointing straight up and heaving up and down with each of her breaths. But her lower body writhed back and forth alluringly, and she licked her lips. “Take me, Spike!”

Grabbing Rarity's thighs, Spike pulled her onto his cock, shoving himself all the way into her in one strong thrust.

Arching her back, Rarity moaned and grabbed her own boobs in her hands. “Yes! Give it to me!” Her lithe belly stretched out in front of him, seeming even slimmer than Sweetie Belle's when she arched her back that way.

Spike fucked her savagely, pounding into her pussy as hard and as fast as he could. Every time his belly slapped against her thighs, she would give an enticingly unladylike “Unf!” Her cries and the sound of their flesh smacking together filled the room – if anyone had been downstairs in the boutique, they surely would have heard it.

Now when Spike felt the pressure building, he didn't even try to hold it back. This felt so perfect! It was all his life's fantasies culminating one one blissful moment. Before he knew it, he was already over the brink. “Rarity,” he groaned, “I'm gonna...”

“Mmm, do be a dear and pull ou—”

Pushing himself in to the hilt, Spike let himself loose. His cock throbbed, spewing jets of dragon cum as deep as he could reach inside Rarity's welcoming pussy.

“Spike!” Rarity cried out. But her shock and dread quickly melted as she felt more and more of it flowing into her. “Oh Spike ... it's so hot inside me! I can feel it spreading.”

Though his knees threatened to give out, Spike kept himself right where he was, pumping more and more of his hot cum into his lifelong crush. If any experience could ever top this, Spike had no clue what it might be. This was the ultimate moment. His head swam with the overwhelming rush of releasing nearly a dozen years' worth of desperate lust.

There was a steaming white puddle dripping down from between Rarity's legs by the time Spike's cock finally gave its last drops. Even then, he stayed hilted inside her, staring down at her beautiful naked body. Even sullied as she was with a light sheen of sweat, even now that he knew her boobs weren't real, she was still the most beautiful sight he had ever seen.

He didn't pull out of her until his cock had already shrank almost all the way back down inside him. He wanted to prolong this perfect moment as long as possible.

“Okay, are you two finally done yet?”

Spike looked back at Sweetie Belle and sighed. “Yeah, I guess so.” She was putting on an air of supreme irritation ... but he did notice that the front of her skirt was a bit more wrinkled than usual, and a couple of her fingers were wet.

Rarity groaned as she sat up on her bed. “Sweet Celestia, I've never felt anything like that before. And I'm afraid I'm going to have to change all these sheets, not to mention cleaning my poor tail... But there is one very pressing question I need an answer for: can a dragon get a pony mare pregnant?”

Sweetie Belle – quite rudely – laughed out loud at her older sister's question.

But Spike took it more seriously. “We, um... We had Twilight do a little research on it, but the most definitive answer she could come up with was 'probably not'. I do know, at least, that me and Sweetie Belle have done it lots of times, and she hasn't gotten knocked up yet, so it seems pretty safe. But, still ... maybe get tested, just to be sure?”

“Ugh, fantastic.” Rarity indulged herself by burying her face between her hands for a moment. But only a moment – then she looked back up. “Still, it was an amazing experience ... one I might not mind having again sometime...?”

“Absolutely not!” Sweetie Belle proclaimed, jabbing her finger at Rarity.

“Oh come on, Sweetie...” Spike did his best sad-puppy imitation. “There's got to be some way. Anything.”

Sweetie Belle smirked. “Anything, huh? Like, maybe ... what we discussed in case you lost the bet?”

Spike's eyes went wide, and he grimaced. But then again... He glanced back at Rarity and licked his lips. Maybe it would be worth it. “Maybe we could try that, um ... at the same time?”

“You mean like, all of us, together?” Sweetie Belle asked.

Spike nodded.

“Hmm... Okay! It's a date!”

Rarity cleared her throat gently. She held her arms over her substantial chest, and her legs were crossed over the unladylike mess under her crotch. “Would you two mind informing me what you've just signed me up for?”

Sweetie Belle grinned disturbingly wide, as if she already knew the answer to the question she was about to ask. “How do you feel about double penetration, Sis?”

Author's Note

This story was chosen by my Patreon supporters! Every month, I take suggestions from my supporters and let them vote to determine which story I'll write next.

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