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!

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.