A Snake's Sin

by DarkArtificer

Rating: mature
Tags: Princess Luna, Original Character, Porn, My Little Pony: Friendship is Magic, Romance, Non-consensual, Sex
Length: 5354

When Luna decides to try and trap a notorious criminal, something far different than she expected happens.

Luna tries to trick and trap Diamond Snake, one of Equestria's most wanted villains. When he outsmarts her, he naturally decides to use her for his lustful desires. Against her will, of course.

Contains eventual consent rape

Published 2018-05-01 21:50:07 UTC
Last updated 2018-05-01 21:50:07 UTC

The Sin of a Snake

Manehattan was one of the largest cities in Equestria. It was home to a variety of species, not just ponies. Gryphons, Minotaurs, Zebras, Deer, and even the rare young dragon called this bustling city home.

Manehattan was home to more than just diversity. It was also Equestria's largest industrial zone. It was responsible for producing a massive sixty percent of the country's factory-made goods. Naturally, this lead to large sections of the city being devoted solely to either producing goods, or storing them.

During the day, Manehattan was busy. Respectable beings of all kinds went about their daily business. Some worked to support themselves and their families. Others went to school to learn the skills they would need in the world. A few spent their days doing nothing of value other than entertaining themselves. It was a type of energy one would expect in a city such as this.

Once the sun set, however, the masks came off. Parties of all kinds, even those of a less reputable nature started. By the time the moon crested the horizon, they were in full swing. Those who were wealthy and respected business owners by day, were drunk and sloppy dancers by night.

With the raves and near-riots, it was quiet common for loud yells to be heard throughout the city. They tended to be ignored, passed off as revelers buried too deep in their drinks.

One of the only quiet parts of the city was the well-known "Warehouse District." It was an unofficial name given to a multi-block section of Manehattan. A rather apt name due to the fact that this district consisted of nothing but warehouses. Even the Guard was rarely seen here, the dark alleys and darker buildings being a perfect place to be ambushed.

In one such warehouse, identified by a sign engraved with 'Precious' Precious Gems,' a not-so-unusual event was taking place.

"Aye, take it all." The vulpine nodded to one of his subordinates. The foxlike being was a member of a rare, near-extinct species known as the Emerald Foxes. Unlike Diamond Dogs, their distant relatives, Foxes possessed a unique brand of magic. It relied entirely on will and imagination, drastically unlike that of a unicorn's, which relied on systematic equations.

This specific Fox, Diamond "Rattle" Snake, was one of the only Foxes to take up the mantle of thievery. The vulpine had called in an old favor and convinced a roving pack of Diamond Dogs to join him. Recently, the group had been tipped off to a horde of rare gems, an opportunity Diamond couldn't pass up, even if he knew it to be a trap.

"Remember lads, move fast. There will likely be Guards storming this place any minute. You lot might be many, but you sure as Tartarus ain't skilled." His speech got the Dogs to move faster, grabbing crates and bringing them to various holes. Here, they were tossed down to be caught by more Dogs below.

Flexing his magic, he weaved a spell around the block to warn him of any visitors long before they arrived. As an afterthought, he commanded the magic to warn him if any teleports attempted to lock on to the building.

Diamond wouldn't lie. He was nervous. When he received the tip with no fee, his instincts screamed at him. He knew it was an attempt to catch him. Logically, he should have stayed away. His inner sense of avarice, however, disagreed. He brought his paws up and fiddled with the sleeve of his sky-blue jacket.

It was an old thing, stolen from some store in a town he couldn't remember. Diamond didn't really know why he wanted it, he just did. He had grabbed it and walked out, not even looking back as the storekeeper yelled out.

He looked down at his rust-red paws, five claws extending out from each one. He waved his claws around, seeing the trails of energy forming a wake for a few seconds before fading away.

Diamond's ears perked as his spells went off. Someone had entered the block. What confused him was that it was only one pony. The Fox shrugged. It mattered not. A risk was a risk, a reward a reward. "Alright, you lot! Someone's inbound. Grab what you can carry, dive down, and fill up the holes. Head back to the base and store the loot."

Most of the Dogs followed his order without question, grabbing the nearest box and diving into one of the many holes. One, a Dog who was quickly learning to lead from his example, looked at him in slight concern. "What about you, Boss?"

He grinned mischievously at him. "Why, lad, I'm going to find out who came for us. Go ahead, I'll be fine. I'm not defenseless ya know."

He nodded and departed, each of the holes soon being filled with rubble. Like he planned, the Dogs would split into eight different tunnels, filling them up as they go. They would eventually reconnect a few miles away before heading back to their home and linking up with a veritable maze of warrens. Even if some ponies tried to excavate the tunnel, they wouldn't know which way to go.

The warehouse was quiet, more than half of its previous cargo gone, on its way to a Diamond Dog warren where it likely wouldn't be seen again. Diamond chose to move behind the door, sitting atop a crate that held nothing other than polishing tools. He wrapped himself in shadow, neutralized his scent, and silenced his breathing. Then, he waited.

The pony walked straight for the warehouse, convincing the Fox that he was here for them and that the tip really had been for a trap. However, twenty feet before the door, the pony turned and continued down the street. Diamond almost dispelled his magic, yet something told him to keep it going.

His instincts once again helped him as with a flash of magic, the pony teleported into the room. The light dimmed Diamond's sight, making it impossible for him to make out who had arrived. He waited in silence for the glare to fade, aware of the pony moving around the room and examining what remained of the holes.

His sight eventually cleared and he felt himself tense when he finally saw who was there. The Lunar Regent, Princess Luna herself had come to apprehend the band of criminals. Unfortunately for her, by the time she got there, the majority of them were gone.

His ears twitched again as he heard her mumble to herself. "They must have had a lookout and left as soon as they saw me. Otherwise, there would be nothing left in here."

Right you are, lass. Except the lookout was a spell.

She looked around, examining the tracks, seemingly looking for something specific. Eventually, she stopped where he had been standing previously. "Just as I thought, the Serpent was here. He couldn't resist the call of greed, could he?"

He allowed himself to smile. The mare found my prints in the dust. Impressive that she knows them.

As he looked over her, his eyes couldn't help but be drawn to her shapely flank and her slender legs. As he stared, a new idea grew in his mind. His face split into a lecherous grin as he planned it out, waiting for her to near his hiding place.

The night mare carefully and methodically searched the room, taking note of each shed fur his Dogs had dropped, each scratch in the wood floor, examining each print to get an idea as to how many were there. Her search slowly brought her closer and closer to Diamond. Within time enough, she was searched near the crate he sat atop. With a grin, he reached out with his paw to tap the Princess.

Some powerful instinct of hers must have went off as she leaped to the side the moment he made his move. However, she was just as fraction too slow. As she was airborne, her wings spread to give her better balance, and his paw brushed her feathertips. That touch was all Diamond needed to work his magic, literally. Her muscles and joints locked as the foreign spell paralyzed her and she crashed to the floor in the same position she had been in while airborne.

Diamond stood off the crate and dispelled his magic, delighting in the fear in the Lunar Alicorn's eyes. "Well, lass, looks like you've encountered a bit of a problem. It seems that not even Alicorns can resist the infamous magic of an Emerald Fox."

Diamond gave off a dark chuckle as he looked down at her vulnerable form. "Oh, you and I are going to have fun. Well, I am, at least. You might, if that's your thing."

Luna let out several mumbles in reply, clearly trying to speak. Diamond, after a moment's thought, soundproofed the building, then tapped Luna and allowed her to speak. She did so, nearly yelling. "You'll never get away with this, Serpent!"

Diamond sighed and silenced her with a flick. "My name is Diamond Snake, not Serpent. And try not to speak in cliché, will you? Matter of fact, don't speak at all. That heavenly voice of yours will be making sounds soon enough."

Her eyes flickered with fear as she realized just what he planned to do. He only grinned as he picked her up and stood her on her legs. The great thing about Fox magic was that the caster could affect it at will. While he could move her paralyzed limbs, no matter much she tried, she couldn't so much as twitch. He stood her in front of the very crate he hid on and began to make adjustments to her form.

Her wings were already spread, but he reached down and evened out her hooves, allowing her to stand evenly without support. Then, he moved in front of her and placed a hand on her cheek and looked into her eyes. Already a slight sheen of tears could be seen in her eyes.

"Now, lass, I'm going to be blunt. You shouldn't have come here alone, or at all. However, I intend to make the most of your presence. I am rather pent up, the ins and outs of running a criminal band being rather stressful. I'm sure you understand. You are going to help me relieve my stress. You can either cooperate and try to enjoy it, or resist and hate it. I'll let you decide."

Diamond removed his coat and placed it on the back of the crate, out of the way. Then, he sat down and applied a spell on Luna's hooves. He grabbed her horn, making her blush at the contact, and pulled her closer to him. She slid across the floor, frictionless, before she came to a stop with her muzzle right above his exposed crotch.

Her eyes glanced down to see his cock already erected, the arousing idea of forcing a Princess to submit doing its work. He tapped her neck and she felt the magic holding her head and neck still fade. Her horn, however, was still coated in an energy that prevented it from working, as was the rest of her body.

She turned her head away from him, disgusted by what he wanted to do. She felt a paw grab her muzzle and force her to face him as he spoke. "You can either do it yourself and retain some semblance of control, or make me do it and quickly hate it. I will not be gentle."

A shivered racked her head and neck at that as she bent her head down and lightly licked the head of his cock. Diamond placed a paw in her flowing mane as he murmured, "Good, lass."

She continued to lick his lower head before dipping her muzzle down and trailing her tongue to the base of his shaft and bringing her head back up. She felt warmth on her face and realized twin trails of tears were flowing from her eyes.

Wanting to finish him as quickly as possible, she planted a kiss on his flare before opening her mouth and enveloping his cock, sinking to the base while his tip poked the back of her throat. Diamond groaned to himself as the wet tongue was replaced by a warm, wetter mouth. He groaned again as she pulled back up, sucking powerfully, before she stopped with just the head remaining. She swirled her tongue around it before plunging back down.
She repeated the process twice more before an idea came to her, one she tried to act on immediately. Diamond, however, saw the flash in her eyes and reacted. Luna yelped in pain as a paw struck the side of her face before her teeth could sink into his cock. She was immediately paralyzed as he pushed her back and stood up.

His member was pulled from her mouth when she was pushed, leaving her muzzle open in a 'O' shape that Diamond was prepared to take advantage of. When he spoke, there was an undercurrent of anger that made Luna instantly regret her actions. "I told you, lass, that if I did it, you would not enjoy it. You should have listened."

Diamond grabbed her long neck and straightened it slightly, bringing her muzzle to the same height as his cock. He placed the tip in her mouth before plunging back into her muzzle, his balls and hips hitting her chin and face with an audible smack.

The extra force allowed him to reach deeper into the warm, wet cavern that was an Alicorn's mouth. Luna felt her throat try to convulse as he dipped into her throat and began coughing, the jumping vibrations doing nothing other than pleasuring Diamond more.

The sounds of carnal sex and vulpine grunts filled the room as Diamond abused Luna's mouth. The warmth and slickness was making the Fox reach the end of his limit sooner than he expected as he felt his climax nearing. He allowed her to regain control of her own throat, which, to his satisfaction, began convulsing as it tried to block him out.

He groaned loudly before speaking. "You might want to swallow, Luna. There's going to be a lot and I'm sure you don't want to choke, right?"

He couldn't be sure, but he thought she tried to nod. He returned control of her tongue which began to press against his cock. He groaned once more as the combined actions pushed him over the edge. He quickly pulled back until only the tip remained.

Luna braced her self as he pulled back, knowing what was coming next. She was right as his flare expanded and blocked her mouth before his cock throbbed, a long spurt of Emerald Fox cum filling her muzzle.

Instantly, she was aware of the bitter, tingly taste that coated her tongue and filled her mouth. She thought to herself, amazed. Even their cum is filled with magic!

She gulped down the spurt just in time as the next came. Then the next. And another. This continued for nearly a minute, rope after rope of thick cum erupting from his throbbing cock as she swallowed it just in time for another to come. Diamond did not lie; there was a lot.

The Fox's eyes were closed in bliss. The feeling of his cock throbbing and pumping seed into Luna's mouth was incredibly satisfying. It was even more so as he could feel her swallowing it all. Eventually, his orgasm petered off and his flare shrunk. When he was done, he stepped back and pulled his cock out fully.

To his surprise, no cum flowed from her muzzle. "You swallowed it all? I'm impressed, you must be experienced!"

She blushed, her muzzle tinting a dark purple. He noticed then two things. The first was that she was no longer crying, a fact that he chose not to comment on. The next thing he noticed was a needy, tempting aroma the filled the room.

He grinned knowingly at the Alicorn mare who blushed darker. "It seems you enjoyed being treated roughly, lass. Lets take a look at just how much."

Diamond walked around the mare and kneeled down, his paws brushing the dark blue and black flanks. He gripped the base of her ethereal tail and raised it out of the way. As he did so, her marehood was exposed and the smell increased several times over.

Luna had enjoyed his treatment in some instinctual part of her as her lips were swollen and slick. Her clit winked at him often, each time forcing more of her juices out and down her hind legs, joining the trail that already existed. Diamond breathed in her scent and sighed, enjoying her heavily aroused state.

Some form of half held back moan emitted from Luna when his breath stimulated her wet lips. Diamond, after a thought, freed her voice. Then he moved his paw over and ran a clawtip from the bottom of her slit the top. She moaned as he did, growing louder as he brushed her clit. He brought his paw back down and used his claws to spread her lips open. She tried to shiver at the cold air that brushed her depths and she winked again.

Diamond smiled at her obvious arousal and leaned in. He placed a teasing kiss on her opening and felt her juices coat the end of his muzzle. He licked his lips and tasted the sweet flavor of blackberries. He continued to kiss around her flanks but never on her needy slit. She panted and whimpered and moaned, but he never gave her the feeling she desired. Finally, after several minutes and long after the trickle became a waterfall, he ran his tongue up the length of her slit, driving her into a significantly louder moan.

Done with the teasing, he leaned in and drove his tongue into her marehood. She yelled out in pleasure as he did and the Fox felt her walls clench on him. He flicked his tongue across her walls and lapped at her flavor, making her squirm and whimper. His paw came up and began to rub and squeeze at her clit when his tongue found a rougher patch inside her. The dual ministrations quickly began to bring her to the edge. As she approached her climax, he leaned back and stopped.

"N-no, please! Don't s-stop!" Luna shouted as she felt her orgasm fading away. While she pleaded for release, Diamond cleaned his paws and muzzle of her juices, savoring them. Finally, when he deemed her orgasm faded enough, he leaped back into her dripping pussy and lapped at it feverishly.

He immediately targeted the rough patch and her clit as he pleasured the moaning mare. He fully intended to pleasure her into submission at this point and it certainly seemed to be working. This time, when her depths began to clench and her moans grew louder, he didn't slow down.

Instead, he worked to drive his muzzle deeper into her while working. His actions bore fruit as the tip of his muzzle became buried between her walls. When his tongue flickered out and struck a deep, previously untouched part of herself, it was too much. The dam broke and she came.

Her marehood clenched on his muzzle powerfully, locking him in place. Her moan echoed throughout the building loudly as a variable torrent of sexual fluids emitted from her depths. He labored to drink and savor as much as he could but there was simply too much. Her juices made past the seal created by his muzzle and dribbled down her legs as well as his neck and chest.

The powerful contractions held his muzzle in place, preventing him from taking a much needed breath. After several moments, she relaxed and he pulled his muzzle out of her marehood. He stood up behind her and glanced down to see his front soaked with her marecum, his fur matted down. "If I didn't know any better, lass, I'd say you were trying to drown me."

Her blushed darkens further and he laughed, patting her on her flank. "Ah, but at least you had some fun, eh? We aren't done yet though."

He walked around her and her eyes locked on to his rock hard cock as it waved in front of her face. He could see the conflicted emotions in her eyes and took pleasure in it. "Time for the next step."

He grabbed her front hooves and raised them up as he pulled her toward the crate. He propped her up against it and altered her stance. Head thrown back, marking her horn as a good grip, wings spread as far as they could go, which was quite impressive with her arousal, and hind legs spread and tail raised to expose her flank and puckered lips. Diamond stepped back and admired her sleek form.

Her silky fur was matted with sweat around her body but with other fluids around her flank and back legs. Her head was raised slightly and her eyes were locked on to his, the concerned, questioning stare making his cock throb. Her wings would provide an excellent grip and serve to pleasure her as well. With her hooves propped on a crate, she was in the classic mounting position, a fact that aroused him further. No doubt, Diamond would enjoy what was to come immensely.

He rounded the crate again and stood behind her. Even from this distance, he could feel the heat being emitted by her core. He was ready to discover what it felt like around his cock. He gripped his shaft with one paw and placed it at the entrance to her depths, rubbing the tip across the ever-present arousal. She moaned and, with a thought, he gave her control over her head and neck again. She stretched her neck further and rested it on the crate, fully submitting to his ministrations. "Ready, lass?"

When she spoke, it was with a needy, hesitant voice that did nothing to quell his arousal. "Y-yes."

"Good." Diamond gripped flank with his other paw, being sure not to cut her, and slowly pushed his member into her entrance. It wasn't difficult at first, her sopping wetness and his earlier stint with his muzzle having opened her slightly.

Once he sunk past his tip, however, it became exponentially more difficult. She was either a virgin, or had not had any sex in a very long time. Her walls gripped him incredibly tight as he slowly sunk in, inch by inch.

Try as she might, Luna could not remain silent. Her moans reverberated around the mostly empty room and her head was constantly in motion, seeking some outlet from the unyielding pleasure. He could even feel her flank, wings, and legs trying to twitch, but couldn't. Finally, after a full minute of torturous pleasure, Diamond sank to the hilt with a pleasured sigh.

Having fully entered her, both paws reached forward and gripped the base of her wings tightly. Instantly, a shudder powerful enough to pass through his spell wracked her body as she came. He groaned in unison with her long moan as her walls rapidly clenched and she came a torrent around his cock and balls.

"Damn, lass," Diamond started breathlessly, "I knew wings were sensitive but not that sensitive!"

She spoke, just as breathless, but also with a hint of shame, shyness, and arousal. "Its been a... long time."

Without another word, Diamond pulled back until just his tip remained in her, drawing another vocal moan from her. Then, he slammed all the wall back to the hilt, his pelvis meeting her flank with a satisfying wet slap. Again, he pulled back only to drive back in, tugging on her wings.

Her sweet scent and delicious moans filled the air as he continued to thrust into her wet folds. Diamond did not stop nor slow, his pace fast and unrelenting. Her walls constantly clenched and relaxed around him, her body instinctively understanding she was being bred and reacting accordingly. As his thrusts were tapping against her cervix, again she came.

Her second orgasm was even stronger, her walls clamping down powerfully enough to fully stop him. It didn't matter, though, as her folds massaging him made up for the lack of motion. More of her tasty marecum made its way out of their joined nethers and began to form a small puddle between her hind legs as she screamed into the room. Once again, her orgasm faded and her marehood relaxed, if only slightly. He resumed his relentless pace, sparking her moans and cries of pleasure to start anew.

As he continued to pound into her flank, he began to feel his own orgasm slowly approaching. He brought one of his paws beneath her and began to fondle her clit as it winked. Her moans turned into veritable screams as she was pleasurably assaulted on three of the most sensitive parts of her body: clit, marehood, and wing.

His pace sped up as he neared his end, a fact she took note of. Her body twitched, and when he gave her slightly control back, her hips began rocking to meet his, driving him deeper into her than ever before. Her screams became words as she begged for him to finish, "Finish! Fill me with your seed! Breed me like the mare I am!"

With that arousing statement, her flank slammed back and pressed flush against his crotch as they both came, she screaming out as he moaned. His flare expanded deep within her, pressing against her cervix as his cock began to throb, pumping hot, magic-enriched cum into her womb.

Spurt after spurt, ropes of Diamond's cum filled her. She could feel the warmth spread throughout her body as her own orgasm surged out of her. Her body's most basic, instinctual need was fulfilled as he filled her with his virile seed. She could even feel the pressure building, his flare preventing anything from escaping. As she came down from her orgasm but he continued his, she became aware of the smell around the room.

The scents of a virile male and a fertile female dominated the room, the intertwined scents intoxicating to her. Over those was the scents of carnal sex, a scent that drove her crazy with lust and made her clit wink several times, driving Diamond to pump into her several more times.

Just as the pressure in her wound neared painful, his powerful orgasm died down. He slowly pulled out, his cock filled the space voided with more cum. Finally, he popped out of her as three final ropes painted her flank white. Luna felt the warmth leak out of her and trail down her legs to join the puddle below her.

Suddenly, she felt her legs lock up again as his magic returned. She was moved backward as her front leg were placed on the floor. He came around and sat on the crate directly in front of her, his cock hanging limply as white cum oozed out of it.

"You certainly seemed to enjoy yourself, lass." Diamond said suddenly.

She blushed brightly as she remembered the sounds she had made and what she begged him Ted do. "It was... tolerable."

"Right, love. Whatever you tell yourself." He said with a grin. "You certainly seemed eager to have my cum in you."

When he said that, she remembered the magic properties of his seed. A flash of desperate panic appeared on her muzzle. "Oh buck! I'm filled with your cum! Am I going to get pregnant?"

He had the nerve laughed at her. "No, lass. Not unless you want to. Fox magic at its finest."

She realized that as he sat in front of her, his cock had hardened again. She was amazed at just how much he had to give and a small, instinct-driven part of her felt honored that she was the one he chose to receive it all.

He must have caught her staring as he slid her closer, his cock poking the tip of her muzzle. She went cross-eyed as she stared at the dot of white that now adorned her muzzle as he smell of a hard cock clouded her senses. "Seems I have a little more to give. Why don't you take care of that?"

Unlike last time, she didn't hesitate. She opened her mouth and began lathering licks and kisses across his tip, tasting the combined flavors of his and her own cum. The knowledge that she was tasting her own sexual fluids made her blush heavily at the dirty act, yet she desired more.

She opened her muzzle wide and took him to the hilt, his head dipping into her throat. He grunted loudly as she did. "Bloody Tartarus are you enthusiastic."

Also unlike before, she felt no desire to bite him. Instead, she sought to pleasure him to her fullest extent. Her throat contracted as she bobbed up and down. When she pulled up, she sucked powerfully. As his head remained, she swirled her tongue around the tip, tasting his precum, before diving back down and accepting him into her throat.

It didn't take long for him to cum. When he did, there wasn't much, either. Most of what he had to offer was either in her dripping pussy, stomach, or on the floor below her rump. She took him all the way down as he came and gulped down all of his cum. When he finished, she pulled up and released his cock from the confines of her mouth.

Surprisingly, he stood up and rubbed her ears a little. "You sure know how to show a guy a damn good time. In any case, I'm spent. You relieved all my stress and even came to enjoy it. I think its time for me to go."

Her eyes widened. "Are you leaving me here like this?"

He shook his vulpine head, small drops of her cum still hanging on to his fur, just as it did his entire front, and her saliva on his cock. "Nay, lass. A few minutes after I leave, the magic will fade. You'll be free to clean yourself up and leave."

He grabbed his coat and moved to put it on. Before he did, he paused and looked at it inquisitively. Then, he lowered it. He walked over to Luna and draped it over her back where it covered her wings and flank. "Something to remember me by, if you want it."

With a flash of ancient magic, he and all light were gone. The only proof he was ever there in, on, and under her. True to his word, after waiting in the darkness for a few minutes, she felt control come back to her.

Immediately, she magically burned the combined puddles on the floor away. Then, she prepared to clean her flank and hind legs off. Before she cast the spell, however, a though struck her. She quickly glanced around to make sure she was alone before wiping her hoof against the trails of cum on her flank. She brought her white-coated hoof to her mouth and licked it clean, enjoying the delicious taste. She cleaned her entire backside this way, even going so far as to run her hoof across her sensitive outer lips, gathering a generous splotch of cum that she, too, swallowed. She did not, however, clean out her passage or womb, deciding to leave his seed where it was.

During her movements, Diamond's coat had fallen off. As she readied a teleport, she saw it on the ground. She considered leaving it but decided against it. She changed her spell and levitated it onto her back, wrapping it around her like a cloak where it covered her wet, sticky rump. Then, she teleported away.

The only evidence of the previous carnal events were the kaleidoscope of scents dominating the room.