MLO: Sweetie and Spike Make an Art

by Typist Gray

Rating: mature
Tags: Rarity, Profanity, Non-consensual, Sex, Sweetie Belle, Slice of Life, My Little Pony: Friendship is Magic, Dark, Porn, Spike
Length: 8623

Rarity enlists the youngsters to help her with a very special project, whether they like it or not.

Rarity has an idea. She needs Spike and Sweetie Belle to help her with this idea. They may not like it, but that's ok. Their compliance is not a factor. Also, this story is set in the MLO 2 universe. Reading that isn't necessary to understand what's happening, but it does help.

Warning: Forced sex between minors and forced pregnancey.

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Published 2020-12-14 09:00:00 UTC
Last updated 2020-12-14 09:00:00 UTC

Chapter 1: Sweetie x Spike

Spike awoke slowly, feeling well-rested. He was warm, but oddly uncomfortable. Did Twilight tuck him in too tightly last night? Wait… no. She hadn’t tucked him in in a while, not since he got his wings. Speaking of which, he really needed to stretch the things out, but couldn’t. The more he woke up, the more he realized that he was unable to move in this dark room. Not only that, but something warm and fuzzy was pressed against his front.

“Mmmh, five more minutes,” cooed a sleepy filly.

“Sweetie!?” Spike exclaimed. He now realized that the fuzzy thing against his front was Sweetie’s back. The reason he couldn’t move was that something was binding him in place. Straps were tied in strategic areas to limit mobility, but also in such a way to avoid chaffing. Spike knew of only one pony who could be responsible.

“S-Spike?” she asked drearily. A smile came to the filly’s face as she recognized the familiar texture of Spike’s belly scales against her back. Cooing, she tried to wiggle herself closer in the hopes of coaxing him into some early morning action. However, she couldn’t. She recognized the binds much quicker than he did, having practically grown up with them.

“Good morning, darlings,” Rarity practically sang as she entered the dark room. Her horn lit and activated the magical lamps surrounding what turned out to be Sweetie’s room.

As the lights slowly intensified to let the former sleepers’ eyes adjust, the youngsters found that they were tied together on Sweetie’s bed with Spike playing the role of the big spoon. Honestly, there were far worse places and positions for one to wake up in, but anywhere in Rarity’s grasp was at least in the top ten.

“I hope you slept well. You two have a busy day ahead of you.” The marshmallow mare tittered as she strutted around the bed. Her prancing caused her plush rump to bounce enticingly while her half-erect cock flopped ungraciously beneath her, slapping her belly in a most unladylike fashion.

“R-Rarity. What’s going on?” Sweetie asked. On the one hand, she was concerned as to what devious and dastardly scheme her sister had cooked up. On the other, she was growing annoyed that she couldn’t feel Spike’s double dragon dick. If he wasn’t at least hot-dogging her by now, it meant that he’d been bound in such a way to prevent it.

“Tut-tut. Patience, darling. All good things come to those who wait,” Rarity instructed. She revealed a tray loaded with the morning’s breakfast and presented it to her captives. “I hope you enjoy your meal. All items specially chosen to maintain youthful vigor and prolong one’s endurance,” she instructed like a teacher giving a lesson.

Just as Sweetie opened her mouth to repeat her question, a sandwich was shoved between her lips. Having long since been conditioned not to resist Rarity’s whims, Sweetie chowed down on the morsel and swallowed. “You’d better eat too, Spike. I get the feeling we’re gonna need our energy for whatever’s coming.”

“Smart filly,” Rarity with an almost sadistic smirk.

With a defeated huff, Spike did just that and opened his mouth. Sandwiches were magically levitated for him to chow down on while the two were given breaks to breathe and drink the juice. It was all very delicious. Now more aware of his predicament, Spike found that his face was partially buried in Sweetie’s mane. She smelled nice. His wrists were tied under her belly, so while he could get himself a couple of handfuls of soft filly fur, it wasn’t anywhere that would make her squeal. Also, despite his best efforts, he couldn’t move his crotch any closer to Sweetie’s.

“I think that should do for now.” Rarity set the tray aside on the nightstand as she came around. She sat on the side of the bed and turned to face the bound youngsters. “I know you’re probably wondering what this is all about, but let me answer that question with another question.” Rarity cleared her throat. “Sweetie, what day is today?”

“Uh… Thursday?”

Rarity smiled flatly. “No, Sweetie. Today is the second day of something special. Tell me, was there anything that stood out to you about yesterday?”

Sweetie’s brow furrowed as she thought. “I remember waking up with a funny feeling in my tummy.”

“Go on.”

“It was like I was super horny, but more so. It’s hard to say. I remember thinking I was gonna throw up or something at breakfast. Then you came in and I…” She trailed off giggling.

“Aww, don’t be bashful, darling. It’s only Spike, you know. I’m sure he can handle the story of how you launched yourself from your chair like a cannonball and impaled your little pussy more than halfway on my cock. Oops. Did I say that out loud?” She tittered in a faux apology.

Spike felt Sweetie heat up in embarrassment. Even with his limited movement, he did his best to console her with a hug. “Hey, don’t be like that. Rarity’s got a pretty awesome cock. All the Elements do. It’s normal to want to feel those amazing slabs of meat wedging themselves inside you, spreading out your insides, filling you like there’s no tomorrow, and then…” Spike trailed off, wary to say anymore. Not only was he turning himself on, but he could see Rarity’s fifth leg standing to attention as if to answer his call.

“Such a good little Spikey-wikey,” Rarity cooed as she cupped his cheek. “Always putting your friends first and ever the gentle-drake. It’s why I chose you, you know.” Spike almost asked his question, only to get a shushing hoof from the mare. “Ah-ah. Not yet. Sweetie still needs to tell you about yesterday.” She turned to the filly. “Well, go on, darling.”

Sweetie nodded even as she squirmed. Spike’s efforts to calm her down had backfired, only increasing her arousal. Worse, she was pretty sure breakfast was kicking in as she suddenly had the urge to get up and do something to work off this newfound excess energy. “W-well,” Sweetie panted with a growing grin, “I rode you. I clung to your belly like a koala while you – nnngh! – went about your d-d-day.”

Rarity nodded. “You calmed down whenever I climaxed inside you, yes?”

Sweetie nodded. “Y-yeah. It was so…”

“Refreshing?” Rarity suggested.

“That works.”

“Almost like having a cool glass of water on a hot summer’s day, yes?” Rarity’s grin grew mischievous.

Being accustomed to Molestia’s riddles, Spike’s eyes widened in alarm when he felt that he’d deduced the answer, only to have a glowing aura pinch his lips shut. Rarity tutted her discouragement and motioned for Sweetie to keep going.

“I g-guess,” Sweetie allowed. She knew that her sister was alluding to something, but still couldn’t put her hoof on it. It was also getting harder to think as her body grew hotter. Between Spike and her sister, the smell of cock was pungent in the air. “M-my tummy’s feeling kinda funny again. C-can I use your cock like I did yesterday?”

“That depends. Can you tell me what you’ll use it for? The literal answer or a colorful euphemism will suffice.” Rarity gave her sister a moment, but there was still nothing. “C’mon, Sweetie. It feels like there’s a fire in your belly. A burning need. What could my cock do to alleviate such tension?”

“It could coo-” Sweetie’s eyes snapped open as it finally came to her. “C-cool my heat?”

“Bravo, darling! Bravo!” Rarity applauded. “I knew you’d get it eventually, but yes. Now that you have your cutie mark, you’re officially an adult, meaning that you get to enjoy your first heat.”

“But it’s awful!” Sweetie whined. “All I can think about is cock, my body is burning up, and I can’t even move to fix it!” she cried while struggling against her binds. “Please, Rarity. Just fuck me already!”

“Oh, Sweetie. I know the first heat can be troublesome. All young mares go through it. And although my ravishing mare cock would suit your needs adequately,” Rarity explained while stroking herself, “I’m afraid that this isn’t a good time for me. I have too many orders from important clients. Our usual sessions of my using you as a cock warmer simply will not be enough to satisfy you. That’s where Spike comes in.”

Spike furrowed his brow. He thought he understood, but something about Rarity’s tone left him feeling especially uneasy. “So I just need to fuck her? I can do that, no problem.”

“Not with these binds keeping us apart where it matters,” growled Sweetie as she strained to push her ass up against Spike.

“Alas, it is not that simple, my dearest Spikey-wikey. A young mare’s first heat can be – how do I put this delicately? – demanding. Throwing my sister on the bed and lovingly ravishing her body as you would usually do will not suffice. It is not enough that you fuck her,” Rarity explained over Sweetie’s ongoing whining. “You must fuck her stupid. You must appease her pussy beyond the point of climax, beyond physical exhaustion, and perhaps even beyond sense.” That last part was said with Rarity’s special brand of sadism.

Spike felt his guts sink. “W-wait. Heat lasts days. W-what about Twilight?”

“There’s no need to fret, darling. I’ve properly compensated her for your time. Essentially, I have purchased your services as a stud until my sister is satisfied.”

“Pleaaase,” Sweetie begged, still trying to push her butt back.

The look in Rarity’s eye grew wilder as she licked her lips and lit her horn. “Of course, darling.”

The binds were strategically adjusted to loosen in some areas while others tightened. Both youngsters gasped in blessed relief when Spike slammed his hips into Sweetie’s backside. His double penis plunged into the young mare’s sopping wet pussy and made them both moan in ecstasy. With what control he could exert, Spike pressed himself as far as he could into Sweetie’s snatch and began rotating his hips around. Her pleasured cries were like music to his ears as he built up the friction between them.

Sweetie’s brain went white-hot with bliss. Spike wasn’t thrusting yet, but the friction of his rotations was amazing. She’d taken his hemi-penis before. The dual tips made him significantly wider than most colts and stretched her sensitive walls to an extent that she hadn’t realized she’d been craving. “M-more!” she rasped as Rarity gave her another sip of water.

“Yes, ma’am!” Spike acknowledged dutifully. He reared his hips back as far as they would go within the binds, which was also just enough for him to leave his dual tips inside, and then slammed back in. Sweetie rocked forward atop the sheets and gave a gurgling grunt sound. Spike pulled back slower this time so as to savor the feeling of his skin sliding across hers, only to stop. “You want me to fuck y-?”

“Yes! Dammit, yes!” Sweetie demanded as the others giggled at her expense.

“As you wish.” Spike slammed back in once more. Taking Rarity’s advice, he decided to experiment a little with his methods. Every few vanilla thrusts, he’d switch to a rotating motion that made Sweetie writhe. Had she not been bound, she’d likely have kicked him by now. “Wow, you’re really into it, aren’t ya?” he taunted, loving the power that came from pleasing a mare.

“Nnngh! D-don’t stop,” Sweetie whimpered.

Spike didn’t stop, per-se. He did, however, strategically slow down just when it felt like Sweetie might be getting too close. “Rarity said this can’t be an ordinary fuck,” he whispered into her ear. “I gotta make it good. Gotta fuck your brains out,” he said through gritted teeth as several rapid thrusts were pummeled into her backside, followed by slower and more caressing insertions. “Rarity says it’s the only way to satisfy you.”

Spike’s experience with mares in heat was, admittedly, limited. In Molestia’s school, most other fillies and mares had partnered up away from him, so his primary experience was with Twilight. Thanks to Molestia, that filly knew plenty of advanced masturbation spells, so his involvement was largely superfluous. All he knew for certain was that each mare experienced heat a little differently. Fucking them stupid seemed the common-sense solution, and since Rarity knew Sweetie best, it seemed like she was the closest thing to an expert for Spike to defer to.

A neatly trimmed white hoof stroked Rarity’s cock while a blue aura shaped like a hemi-penis plunged into her pussy. It wasn’t the rough and creative pace of Spike, but it was enough for the unicorn to maintain an ideal state of arousal. “So beautiful.” The words escaped her lips as her eyes drank in the youngsters. She’d watched them have sex before, but this was something else. Sweetie had never been so vocal or receptive to Spike’s thrusts. The young mare’s need was nearly palpable, which almost had Rarity drooling in anticipation of what she had planned.

Spike huffed and puffed until finally, he felt a familiar pressure build in his gut. “C-cumming!” he warned, slamming in one last time and switching back to rotations. His climax erupted forth like a dual fire hose into the filly’s snatch. The girth of his hemi-penis meant that most of his white seed was packed inside and unable to escape.

Sweetie was perfectly content with this as she cried out her orgasm. “Fuuuck!” She felt Spike’s goo slosh around in her pussy. It burned something amazing while paradoxically making her feel a little cooler. Her mind turned more lucid, so while she was still pressing her butt back to keep Spike’s cock where it belonged, she was coherent enough to appreciate other things. His scales had a unique texture against her fur and the way his arms gripped around her barrel felt oddly comforting, even if neither of them had a choice in the matter. She knew from experience that Spike loved post-sex cuddles and was prepared to enjoy this moment of respite.

“Very good, my darlings,” congratulated Rarity, still wearing that sadistic smirk. “However, that was just the warmup for today. The real challenge begins now.” As she spoke, new materials were levitated up from beneath the bed. The youngsters’ bindings were adjusted with new ribbons holding them to the bedposts while spreading sticks were applied in unusual areas that didn’t immediately make sense to the pair. Rarity paused to appraise her work, leaned forward, and gently poked Spike in the shoulder.

“Nnngh, oh fuck!” gasped Sweetie, her cheeks flushed. Spike’s seemingly slight movement resulted in an intense jostling of his dual shafts in her pussy. “S-sorry. I g-guess I’m still a little sensitive back there.”

“No need to worry, darling. It’s perfectly understandable, and also precisely the reaction I was hoping for.” Rarity then hopped off the bed, causing a shift in the mattress that pulled on both youngsters’ binds in ways that caught both off guard, making them gasp. “Ah, yes. Simply splendid.”

“R-Rarity,” Spike struggled to say. Somehow, even the labor of breathing was making him move around in Sweetie’s foal hole. “W-what’d you d-do t-t-t-nnnf!?”

Rarity’s smile was as demure as it was frightening. “Call it a bit of inspirational experimentation, darlings.” Her horn’s glow grew as a pair of shimmer’s appeared beside her and the bound youngsters. Like rippling water, the shimmers slowly calmed until the other side could be seen. Rarity turned from the youngsters, only to stare at them through the magical window. Beaming with gleeful power, her horn lit again, this time adjusting the position of the window to observe the youngsters from multiple angles. “Yes. This will do nicely,” she said before situating a bedpan behind the pair and daintily trotting toward the exit.

“W-wait!” Spike called out.

Rarity stopped and turned around, giving a look as though she’d only just noticed the drake. “Yes?”

“I… shouldn’t we get breaks or something? I promise I won’t try to leave, but-”

“While appreciated, I’m afraid that there’s no need to make such a promise, Spikey-Wikey. I know you won’t leave because that would compromise my little experiment.” Rarity tittered darkly before leaving this time.”

“Spiiike!” Sweetie moaned. “P-please don’t move so much.”

Spike gritted his teeth. He wasn’t sure how, but the slightest movements were having a disproportionate impact on where the penis met the pussy. It wasn’t just that they were extra sensitive following their orgasm. “It,” Spike grunted. “It’s like the ribbons and stuff all have a will of their own,” he panted to say. “Th-it’s like they’re trying to coerce us to keep fucking,” he said incredulously.

Sweetie turned her head as best she could to meet Spike’s confusion with her own. “W-why?” It went without saying that they didn’t need coercion to fuck. They’d do so happily of their own accord, as they’d done countless times in the past. “Wh-what’s differrrent?” moaned the young mare.

Rarity cleared her throat, drawing attention to the youngsters’ window. “I’ve implemented a few personalized modifications on this scrying window, my pets. I cannot hear your words. Only your cries of lewd and carnal bliss,” she purred, “shall grace my ears. I ask that you be patient and try not to overexert yourselves before lunch, when I shall resupply you. Can’t let those nubile bodies tucker out too soon, can we?” she tittered.

Then Spike’s heart skipped a beat. “The bedpan,” he muttered. “H-how long?”

After reading their lips, Rarity touched her chin while pretending to think. “I do believe I said until Sweetie’s heat passes. That seems like a good start.”

“Start?” Sweetie whimpered back in equally growing horror.

“You see, you two shall be fornicating nonstop for the duration of your heat. Normally, most mares would enjoy such an endeavor. However, when I say nonstop, I mean nonstop,” Rarity said with deadly seriousness. “Your bindings are based on a design I took from a museum in Canterlot, meant to amplify all movements and build one’s arousal. With a few modifications of my own, I believe that I have perfected the original design. Naturally,” she humble bragged. “Sweetie, for the duration of your heat, your every flinch will move Spike’s cock inside of you. And Spike, as you’ve likely discerned, even your faintest breathing will cause Sweetie’s young pussy to embrace you with all of her might. Neither of you can stop this, so you might as well sit back and enjoy.”

Spike had heard such lines before in Molestia’s dungeons. Ponies would be locked up for days on end and submitted to all manner of perversions, but at least they got… “Safe words! Do we get a safe word?”

Rarity tilted her head. “It appears that you said safe word. A fair inquiry, but I’m afraid such a thing would ruin my little… I suppose calling it performance art would be better. While I work, you will perform. I will listen to you, watch you, and draw inspiration from your particular predicament,” she tittered most ladylike. “I won’t lie by saying that this won’t become uncomfortable, but that’s the point. One must suffer to achieve great art, and I believe that observing your agonizing orgasms shall motivate me to create a new line that will take the fashion world by storm,” she proclaimed with a dramatic flourish. “You wouldn’t want me to miss out on such a chance, would you?” she asked in a baby voice while pouting adorably.

Before anyone could answer, the bell rang to announce a customer’s arrival. Rarity rushed to greet a stallion that the youngsters didn’t recognize. Pleasantries were exchanged, and when the stallion inevitably pointed out the scrying window, Rarity made a dismissive remark before leading the stallion to his order. The youngsters could only watch in falling spirits as their plight was ignored.

“I-I’m getting hot again,” Sweetie panted. She moaned as her butt wiggled against Spike’s crotch. “You’re filling me so good. J-just a little morrre!”

“R-right,” agreed Spike. The new bindings still let him move his hips to an extent. He pulled out slowly to draw out Sweetie’s cries of bliss. The stallion noticed, but Rarity kept his attention on the order. Spike pumped his hemi-penis back into Sweetie’s cunt. Her insides pulled on his cock each time he pulled out, scraping their sensitive genitals together. “J-just keep going,” Spike panted. “If we go at it enough, m-maybe we’ll pass out.”

Sweetie’s heat prevented her from listening too intently. Her pussy was too hungry and Spike’s cock was too slow. Luckily, she’d found that bending her back a certain way finally gave her the slack she needed to slam her butt right back against his crotch. “Agh! Nnnf! Oh yeah!” she grunted each time her butt collided against the drake with a wet smack.

Spike grunted. Even if he didn’t have Sweetie on board, his scheme could still work. They’d give Rarity a little malicious compliance by fucking themselves to exhaustion, and then being too exhausted to fuck any further. The hope was that she’d eventually grow bored and seek out an alternative form of inspiration. Even if it still involved them, at least they might be more comfortable. Thinking that this was their only chance, Spike impacted Sweetie’s pussy at full force and gave his hips a twist at the end. His already over-sensitive cock spermed into the young mare’s cunt. As they rode out their climax together, Spike found that Sweetie’s fur was growing stickier by the minute.

Meanwhile…

“Goodness, those two certainly seem determined,” the stallion said with a lick of his lips. “If you’d allow, I wouldn’t mind borrowing them for a smidge.”

“Normally I’d be happy to oblige and lend my sister to you, but I’m afraid that the drake isn’t mine to give. I’m borrowing him from another mare, you see, and it would be most uncouth to lend a creature that I’m already borrowing.”

“Ah, a true lady then,” praised the stallion. “It’s been far too long since I’ve met a mare who can demonstrate the proper etiquette in pet care. Meeting a mare of such class alone makes this venture worth it.” He turned to the order. “And this gown is a vision of loveliness. I can’t wait for my future wives to see me in it.”

“Indeed. I’ve made the material extra durable so that when they inevitably ravish you, there will be no damage. You’re encouraged to wear this gown as often as you like without any fear of wear or tear for years to come. That’s the Rarity guarantee,” she bragged.

Later, like, at the exact same time…

Spike and Sweetie heard every word. Well, more so the former. Sweetie was increasingly lucid after near back-to-back orgasms. However, she could still feel the heat’s lust at the back of her mind, munching greedily on her latest climax, but would soon be hungry for more.

“B-better?” Spike panted. He tried to adjust his position a little, only to feel tensing in his balls. How? What had he done? What binds pulled where to cause this? It was impossible to tell. “A-at least I’m too soft-” The triumphant words died in Spike’s throat as he felt his cock swell with renewed life. Why? Was it the supplements Rarity had fed them? Was his body reacting to Sweetie’s pheromones? Was this a dragon thing? Maybe it was all three and then some. Whatever the case, this was bad.

Everything faded into a blur after that. Spike only came back to consciousness when the door opened and Rarity returned. The smell caused his stomach to growl while his body ached from the promised nonstop fucking.

“Lunchtime, my pets.” Rarity set another plate of sandwiches near the pair. Some glistened from a variety of gems between the bread slices while others were downright plain in comparison. “Gracious, you two have been doing wonderfully. The sounds you’ve made and your looks of exhaustion,” Rarity trailed off with a girlish squeal. “Delightful. Positively delightful.”

“Rarity,” Sweetie whined tiredly. “I-I gotta potty.”

“There-there, darling.” Rarity touched her sister’s cheek. “It’s fine. There’s no need to hold it. That simply is not healthy. Just go. The bedpan I’ve arranged is enchanted to catch all of that yucky mess. Relieve yourself as you like, free of shame while your friend spreads your pussy wide with his double dick.” Rarity tittered at her crude language. “In the meantime, I’ve come to feed you your noon meals.” Sitting on the bed’s edge as she’d done prior, the unicorn levitated up a pair of sandwiches and offered them to the youngsters. Both were so tired from hours of semi-voluntary fucking that they scarfed their meals down in no time. “Manners, young ones,” Rarity gently chided before readying the refreshments, which were guzzled even quicker.

When the plate had been cleared off and his energy replenished, Spike saw fit to speak. “C’mon, Rarity. Can’t we just get a break?”

“I’m sorry, darling,” she said while cupping his cheek. “I truly am, but this is for the greater good. Sweetie needs to be satisfied and I need my inspiration. How could you say no to that?”

Spike grimaced, unable to think up an immediate response. He cared about them both too much to deny them. Under any other circumstances, he’d be all for volunteering himself to be used, but the last few hours had been torture. There had been next to no reprieve as the bindings, stimulants, and whatever else coaxed the young pair into a state of perpetual arousal and humping.

Rarity, as if reading Spike’s mind, giggled. “Don’t worry, my lovelies. I have every confidence in your ability to persevere.” She then beat a casual retreat before anything else could be said.

“Sweetie,” Spike called. “Sweetie, you with me?”

“Nnnf…”

“Sweetie, I know you-whoa!” Spike moved too much, shifting his cock around the young mare’s pussy. He moaned as his hips seemingly went into autopilot. His motions were weak and devoid of spirit, but they still drove him forward, back, and forward again.

Rarity didn’t have any more clients scheduled for a while, so she went to her sewing room to put some finishing touches on a few orders. Her ear fixed towards the window as the youngsters went at it, but far more pitifully than before. Spike still had a bit of fight in him, but Sweetie was barely even conscious anymore. As such, Rarity reasoned that she’d need to up the doses on the stimulants for tomorrow. More plans were formulated as the mare sat on a vibrator shaped like Spike’s hemi-penis, only bigger. It truly was a lovely shape.

Day 2

Neither Spike nor Sweetie had gotten much sleep last night. Even a dry orgasm was enough to wake them and neither had mastered the art of total motionless sleeping. Every twist or shift had the undesired effect of stimulating them into and against one another.

When Rarity came in with breakfast – two stacks of pancakes – she decided to treat herself and climbed up behind the youngsters. Both of their butts were coated in dried sex juices, but were otherwise clean of any less savory leavings thanks to the magic bedpan. “Such a lovely sight,” she swooned. “Spike, your posterior is as plump and inviting as ever. And Sweetie, since your cutie mark appeared, your baby fat has been redistributed to all the right areas. You’ve both been filling out nicely. And now, I think I’ve restrained myself long enough.”

Tugging just so on the bindings, Rarity adjusted the bound pair so that they were stacked atop one another instead of merely spooning. The unicorn adjusted the window to look directly at the confused young faces as she straddled atop Spike. He knew what was coming, but he didn’t know how to feel about it. Normally, he loved it when Rarity dominated him. But this time, should he resist? Should he try and placate her whims? He didn’t know, and that uncertainty was visible enough to send a shiver down Rarity’s spine.

Rarity purred as the tip of her horse cock prodded at Spike’s quivering anus. “Such lovely sounds, darling. But I’m afraid that it isn’t enough,” she cooed before wedging the first inch inside. Spike’s butt hole opened without delay. “Such a well-trained drake. No need for lube or even foreplay. I can just,” she stepped forward and inserted several inches in one go, “slip in without a fuss,” tittered the mare.

“Oooh, whaaa!” Spike babbled incoherently as his ass was spread. After hours of feeling his lower half going numb, it was a shock to the system to feel such stimulation permeating his anal canal. As Rarity said, no special prep was needed. His ass had been conditioned for some time to take magical futa cock without complaint. Spike continued to groan as Rarity sank deeper and deeper, spreading his ass with her mighty girth, until finally, she’d hilted.

“Ahh, that’s it,” Rarity gasped. “Your bottom feels even better than it looks,” she said while testing the pressure of his cheeks against her groin.

“Ah, I feel it,” Sweetie croaked. She could feel the bulge of Rarity’s cock in Spike’s belly. It was poking at her butt and driving her to try and take it. A second cock could only improve things, her half-baked mind convinced her.

That brought a smile to Rarity’s lips. She pulled out slowly, letting her cock glide across Spike’s insides. She sucked in a breath when her medial ring crossed his pucker, but maintained her steady pace. “Just so you know, I am not fucking you, Spikey-Wikey,” Rarity stated nobly, keeping her breathing even and voice calm. “You are my pet, my toy, and I am merely using you to relieve my desires. Any pleasure you d-derive,” she swore internally at her slip, “is purely incidental. You are here for my pleasure. Understand?”

Spike gave a long, mewling groan as his ass was used. At least Rarity was being gentle, though he reasoned that pointing this out might provoke her into turning rough. He’d be fine with that, were he not so terribly sore already. Instead, feeling Sweetie’s needful movements, he tried to match Rarity’s pacing to pass on the stimulation. As bad as things were for him, Sweetie’s heat made it so much worse. She needed him to cum inside her. Luckily, the stimulants were just starting to kick in. Of even greater import was that the aches in the drake’s joints were easing the more he moved. He hoped the same went for his involuntary lover.

Sweetie gave a relieved sigh as her aches no longer burned so intensely. However, the stimulants – whatever they were – had the reverse effect on her most pressing need. The fires in her belly were stoked beyond reason and she needed to feel Spike jizz inside her. The friction of his hemi-penis sliding along her sensitive walls was more torturous than satisfying. It was like smelling something delicious, leaning forward to take a bite, only to be perpetually held just out of reach.

After some time, Rarity’s slow and steady lovemaking gave way to a more urgent pace. Wet slaps added to the ambiance of youthful moans as Rarity slammed her hips into Spike’s plump and feminine ass. She came harder than expected and gave a surprised gasp. Plugging the drake’s anus to keep her seed inside, Rarity estimated that she’d emptied almost a quart of cum into his rectum. When her cock finished pumping the final spurts, Rarity slowly drew herself out. “Ahh!” she vocalized in satisfaction as her cock came free with a wet pop. Then she looked down at Spike’s gaping anus and marveled as it already began closing. Truly, this was one of the finest trained asses she’d ever had the pleasure of fucking.

“Not so fast, darling,” Rarity said as she lit her horn. Spike squeaked as a tingling aura kept his anal opening from closing further. Licking her lips, Rarity used her magic to reach deep into Spike’s bowels, taking every opportunity to tease along his sensitive walls. She encased the viscous goo in his depths and pulled it out. A glob of white spunk encased in magic was held out for all to witness and appreciate. “Hmm. Such an impressive quantity I’ve produced. What should I do with it?” she thought aloud.

Sweetie, too tired for words, gave an exaggerated and pleading whine.

Rarity’s smile was gentle this time. “Well, of course, you can have it, Sweetie,” she said in her baby voice. “I’m not completely devoid of empathy for my precious sister, after all.” Rarity undid a few knots in the ribbons and removed Spike’s hemi-penis from its home. Both youngsters sucked in hissing breaths as though in pain. Grinning her appreciation at these sounds and the sight of her younger sister’s gaping cunt, Rarity then manifested her aura in a shape like Spike’s dual cock. The ethereal dildo plunged roughly into Sweetie’s young pussy, making her throw her head back in a silent scream. She’d climaxed, but that was irrelevant. It was only after several forceful pumps into her sister that Rarity fed her jizz through the dildo and into the young mare’s greedy womb. Sweetie’s body went limp against the bed as she sighed her relief.

“I’ll forgive you for not saying ‘thank you’, darling,” Rarity offered charitably before reinserting Spike into her sister and retying the knots. “That quantity should tide you over for a bit, but I expect that you’ll be begging dear Spikey-Wikey for his cock in no time.”

Spike gave Rarity the most pitiful look he could muster. He wanted to beg, to plead reason, but felt helpless in the knowledge that Rarity wasn’t interested in such things. She was getting off on having them forcibly fuck one another, and a mare like her would not be so easily dissuaded from her pursuit of carnal passion.

Rarity read all of this in Spike’s expression, gave him a kind smile, and then kissed him on the lips. “You’re doing beautifully, my darlings. Just be patient and we will pull through this together, okay?” She didn’t wait for a response before leaving. Another customer had just arrived.

Author's Note

I've never written this type of forced sex scene before, and am not likely to do so again outside of another commission. It's not my thing, but I'm still glad for the experience and think that it turned out as well as it could have.

Chapter 2: The Fornicating Continues

It was midafternoon on possibly the third day of Spike’s incarceration. At least, that’s what the clock said. Truth be told, it was hard to keep track of such things when you kept passing out from exhaustion, only to wake up an indeterminate amount of time later because your oversensitive naughty bits were being stimulated. Feeling oddly lucid at the moment, Spike decided to investigate something. Moving the arm wrapped around Sweetie’s middle sent a domino effect through their elaborate bindings and resulted in him unintentionally twisting his double dick into her sore cunt. However, just about everything either of them did had that effect, so there was no choice. It took a lot of effort to move his arm and confirm his suspicions. Not only was he sticking to Sweetie through their shared sweat, but a noticeable groove had been left in her fur, and possibly the skin beneath.

“Heh. Our bodies are fitting together in all kinds of ways. It’s like we’re fusing together,” he chuckled weakly.

Sweetie only gave a mewling whine, which Spike interpreted as acknowledgment. He wasn’t sure if she understood what he’d said or had simply heard him. It was possible that she was already too far gone and had already been fucked stupid. Thinking that gave the drake a slight bump in pride for having accomplished this. However, Spike optimistically chose to believe that she’d not only understood, but responded in the affirmative of his weak attempt at levity. Regardless, as time passed, the youngsters’ movements caused their privates to tease one another. Tension built and their bodies eventually gave in.

Meanwhile…

Downstairs, to call Rarity distracted would be an understatement. Here she was with a very important client, discussing a very expensive order, and her dick was hard. That wasn’t the bad part. Most ponies would take such a display as a compliment, or at least appreciate the eye-candy. What made the matter inappropriate was that Rarity wasn’t hard for her client, but the youngsters in the scrying window that she kept stealing glances at.

“Hmm. You know, you could just move those two down here,” Sapphire Shores suggested, snapping Rarity back to the present.

“Beg pardon?”

“Down here. You could set them up…” Sapphire trailed off as she surveyed the lobby. “Right over there. It’s close enough to the entrance to be the first thing that customers see. Surround them with a few marequins sampling your work, and I guarantee it’ll boost your sales.”

Rarity gave the matter its due consideration. “Interesting. I’m working towards recapturing the lost art of sex beyond exhaustion. Putting the specimens on public display would add to the humiliation and further their cries of woe.”

Sapphire set a hoof to her chest and swooned. “A mare after my own heart. So tell me. Is that fifth leg also display-only?”

Rarity’s expression shifted from thoughtful to sadistic. “I was wondering when you’d ask.” The unicorn pounced on the earth mare and knocked her to her back. Sapphire giggled excitedly as she pulled her front hooves in. The window was maneuvered so that both mares had a clear view of Rarity’s ‘art’ before she dropped down. Rarity smashed her lips to Sapphire’s while her cock was pressed tightly between their bellies and teats. As the unicorn ravished the earth mare, hurrying through her usual level of foreplay, both could hardly tear their eyes or ears away from the window. Rarity adjusted the second window to start orbiting the youngsters, giving prime views of everything worth seeing.

With everything set, Rarity lifted her rump into the air, lined everything up with her magic, and dropped her cock with the force of a falling boulder. Sapphire squealed ecstatically as she was penetrated to the base in a single swift motion. She embraced Rarity tightly and expressed her gratitude through needful kisses to the neck. Her primal fires stoked by the sight of her younger sister and part-time assistant in such a state, Rarity wasted no time jerking her hips back to begin pounding some pussy. The sounds Sapphire made were so lewd and uncouth, which only increased Rarity’s longing. This was a good hard fucking, like the kind she’d suggested to Spike, only without the exhaustion.

At one point, as the window rotated around the pair, Rarity locked eyes with Spike. He was conscious of her and her actions. She could see the understanding in his eyes. He knew that she was taunting him by fucking a mare of her own accord while he had no choice. His lips pulled back as he bore his teeth. Giving a beastly and guttural cry, Spike bit down on Sweetie’s neck and renewed his pounding into her, seemingly catching his… Rarity estimated his 24th wind. She was so proud of him for his wise choice to simply give in. Surely he must have picked something up from Twilight’s lessons with Molestia. The indulgence of one’s base urges mattered infinitely more than silly things like pride or even physical ability.

As a reward, Rarity adjusted the window on her end to give Spike a better view of the other acts of carnal bliss taking place under her roof. Her frantic jackhammering slowed to a more reasonable pace for her audience. Sapphire seemed to appreciate the chance to breathe, but otherwise did her best to maintain a reasonable pace. The earth mare grabbed around the unicorn’s neck, pulled up in time with Rarity’s withdrawals, and slammed her hips back to meet each thrust. When Rarity came, it was with an explosive impact that sent drops of juice spraying everywhere. Sapphire was swearing up a storm that not even Rarity’s kisses could quell. It was just so very dirty, and she loved it.

Upstairs, Spike had also climaxed. This one was particularly strong as it lasted for several seconds, even if he was pretty sure he’d just ejaculated damp air. His senses must have also been jacked up, because that one felt especially good compared to the others today. Even Sweetie’s bleating moans sounded particularly appreciative, despite also having run low on fluids. The youngsters had been at this for so long that all else had been forgotten. There was only the ongoing pleasure of fucking, broken up by brief periods of rest, replenishment, and then it was right back to the tugging. Whether they liked it or not, the binds would always tug them in just such a way that ground them together in a most enticing manner.

Resistance had been forgotten. Escape had been forgotten. Their names had nearly been forgotten. There was only the bliss of the moment. Spike didn’t even bother to take advantage of the respite and just kept moving his hips. Maybe a part of him had picked up that willfully slamming his hips into Sweetie’s plot was less taxing than what the bindings did. However, more likely it was that he’d reached a point where he was too exhausted to do otherwise. All non-essential brain functions had been shut down to focus on the filly. She felt so soft and warm and her cries of want were exhilarating. He need not be concerned with anything else.

Sweetie had reached this conclusion some time ago. It was easier to surrender to the demands of her hormones. Spike’s rimmed hemi-penis slamming into her pussy was the best thing ever. Each penetration made her feel so full and even the withdrawal of that fullness heightened her bliss as the ridges scraped along her walls. But without question, nothing beat the raw ecstasy of Spike’s climaxes. Her whole body shook as her pussy clamped down hard and milked his dragon cock for everything that it had. Even when there was nothing, it still triggered a rush of endorphins that sent the young mare over the moon. She loved this. She loved this so fucking much and she wanted it to never end.

Then, some immeasurable amount of time later, the binds came loose. The youngsters were still clinging so tightly to one another that they failed to notice right away. Even seeing the silken ribbons encased in blue magic fly around them before being set on the shelves was barely a blip on their sex-addled minds. And when gravity mixed with weakened muscles to finally pull them apart, they still failed to register that anything had happened. The absence of the others’ warmth was jarring, to say the least. Both started groping at the air and whining as they sought the familiarity of reunification.

“Ah-ah, my darlings. I think that will do.”

Weakly, the youngsters stared up at Rarity and tried to vocalize their protest, making incomprehensible gurgling sounds instead of words. The white mare looked back at them with her sweetest smile and, as she’d been doing for the last few days, guided them into eating and drinking.

“No stimulants this time, darlings. No drugs of any sort. Sweetie, I am beside myself with joy to inform you that your heat… has passed!” Rarity threw her head back in a flourish. “Congratulations!”

“Uh…” Sweetie tried to reply.

“How do I know, you ask? Well, it’s all a matter of smell, darling. I suspect that you two have gone nose-blind to the overwhelming stench,” she purred huskily, “of sex that has permeated this room, I can assure you that the rest of us can detect the change. The pheromones of a mare in her receptive state have gone away, and much sooner than I’d expected,” she said while thoughtfully touching her hoof to her chin. “But I suppose it doesn’t matter. Since Sweetie’s heat wrapped up early, I see no harm in giving you two a day or so to recuperate. Rest, stretch your limbs, and hopefully regain the ability to form coherent sentences. Other than that, I’d just like to once more offer my congratulations on working through your first heat, Sweetie. And thank you sincerely, Spike. You and your fabulous penis have done splendidly.”

The youngsters were only able to follow every other word. Their bodies still moved in auto-pilot, humping into the air long after any reason to do so. It even took them a while to try and fumble their way back towards one another, but alas, their atrophied muscles wouldn’t allow it. At least they were able to hold hand and hoof in a show of solidarity for their shared ordeal.

Time passed, and without the constant stimulation of forced fucking overwhelming their senses, the youngsters slowly started coming to. One-by-one, the lights upstairs flickered back on. Sight was more than just light and movement, but distinct shapes and colors. Spike’s claw was sharp, potentially even dangerous, yet Sweetie felt safe and reassured in his grasp. Sweetie’s smell no longer compelled Spike to fuck until his hips were sore – at least not as much – and yet he still felt drawn to its subtle sweetness. Eventually, the pair were able to crawl and tug their way into one another’s arms. The warmth quieted their anxiety as they studied the textures of the other’s body.

“S-Spike,” rasped the filly.

“A-ah… I’mmm heeere,” croaked the drake.

By the next morning, the two youngsters had made a remarkable recovery. Spike could stand a whole five seconds before collapsing while Sweetie’s wabbly legs held for almost half a minute. The first real sleep they’d had in days did wonders for their mental states. When Spike fell, Sweetie was lucid enough to laugh before moving to help him up. They barely even thought about sex, contenting themselves with gentle nuzzles and the odd friendly grope. Sentences were still awkward and disjointed at times, but they got their points across.

Rarity visited more frequently to check in on them instead of just to serve meals. She offered words of encouragement to stand for as long as possible, and then to go a little longer. She coached them through sentence formation with the patience of a proper teacher. When they did especially well in overcoming hurdles, fashion horse rewarded them with tastings of her cock. Magical futa cum had rejuvenating qualities… apparently. Rarity loved lying on her side and letting the marginally regressed young adults suckle at her penis like it was a teat. It was as naughty as it was maternal.

However, on the last day of recovery, when Spike was finally well enough to walk back to the treebrary on his own, Rarity confronted the young pair with her suspicions. “Oh, Sweetie. I have the most fabulous news. It’s just… Oh my.” She fanned herself. “I just made myself dizzy.”

“What’s the matter?” asked Sweetie as she came up to Rarity’s side without a trace of reservation or resentment for prior treatment. Being raised with Rarity, Sweetie knew what her sister was about, and rather liked it.

Rarity summoned a glass of water to drown her excitement. “Goodness. Beg pardon. It’s just… Oh my!” She cleared her throat. “Sweetie, do you know why mares go into heat?”

Sweetie became thoughtful. Over the years, she’d heard a great deal of talk about heat, about how it was amazing and awful all at once to go through a solid week of nonstop sex, but not a lot about its purpose. When Spike cleared his throat, she answered, “Uh, can I call a friend?”

“Of course,” giggled Rarity as both unicorns look to the drake.

Spike smirked at the chance to show off his smarts. “Heat is that time of year that a mare becomes receptive. She puts out hormones to attract males to… to…” From the outside, you could almost see Spike’s brain hamster stumble, fall, and be sent flying right off the wheel. “Uh-oh.”

“Receptive to what?”

“To a stallion’s seed, darling,” answered Rarity. “Sex is about more than just fun and social cohesion. It’s how we maintain and propagate the species. You and I only exist because our parents forged the beast with two backs while mother was in heat. Now, I was suspicious when your heat ended a full two days early, so I ran a few tests.”

“Sweet Molestia, why?” Spike whispered in dread while Sweetie remained oblivious.

“And they came back positive!” Rarity cheered before sweeping her sister up in a bone-crushing embrace. “I’ll admit that it was a bit of a longshot with Spike being a dragon and all, but this is still a wonderful surprise. I’m going to be an auntie!”

It took Sweetie another seven whole seconds before the dots connected. “But I’m you’re only sister. So if you’re an auntie, that would make me…” Her pupils shrunk to pinpricks.

“That’s right, Sweetie. Oh, you’re so lucky. You got knocked up on your very first heat, and with a dragon, no less. I’m so happy for you!”

Sweetie didn’t know what to feel. She’d only recently recovered enough cognitive ability to process complex emotions, but this would have been a doozy even on a good day. She was aware of Rarity’s hoof drawing circles over her belly, but it still took a second for the implications to sink in. There was something in there. Sweetie Belle… had a life inside of her. “I… I’m gonna be a m-” Her voice hitched in her throat. “A mommy?”

“That’s right, darling. Oh my stars! That would make Spike my brother-in-law. How… delicious,” she purred.

For the first time in days, Spike’s cock twitched back to life. His eyes tracked to where Rarity’s and now Sweetie’s hooves were touching. He’d done that. Sweetie had been knocked up… by him. “I… I’m gonna be a daddy?”

“Oh, yes!” Rarity cried out in joy. “Trapped for days on end, with nothing to do but fornicate like wild beasts until even your minds erode, and born as a result of this coupling is a… a… Hmm. What do you call an infant hybrid of a dragon and a pony? Will it be an egg or live birth? Oh well. I’m sure that Twilight knows. What matters is that it’s a story straight out of a bestselling romance novel.

Expression blank as though in a trance, Spike walked up to the ponies with his claw extended. With conscious gentleness, he reached out and touched Sweetie’s belly. Her fur was soft and his body was warm. Logically, he knew that it was still too early to actually feel anything. However, the pounding of his heart echoed so deeply that he could have sworn he heard the faintest pitter-patter of something else. Spike looked up and met Sweetie’s eyes. The youngsters and soon-to-be-parents shared an awkward smile, and then they kissed.

Sometime later…

“WHAT THE FLYING FUCK!!!?” inquired Trixie and Twilight in the most civil manner one might expect from them. Only a third of the town burned down while Molestia pissed herself from laughing so hard.

Author's Note

And thus, we conclude our little tale. I hope that everyone enjoyed it, although I know that this is a super niche kind of fetish, so likely, this won't be for everyone.