The Natural Attraction Between Siblings

Story by Joshiah on SoFurry

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#10 of Incest Stories (Others)

It's the start of a new year, a new commission format, and new possibilities, but we're starting off with a fetish that's been very popular over the past couple years, in a story for FA: Lunarmagic!

In this story of natural pleasures, Marama the druid is relaxing in the depths of a thick forest, enjoying the quiet voices of the trees and flowers as they speak to him of their lives. It isn't until a doe comes across his meditation that he finally opens his eyes, and finds the cervine to be quite the amorous female...his connection with nature tells him that he should tend to the needs of the doe, but he's still hesitant...and it doesn't help at all when the creature morphs into her true form, that of his sister, Ithilwen.

When the aura of her arousal doesn't change, Marama is forced to reconsider the dynamic of their relationship...and decide if he'll answer the natural call of her desires.

Both characters within belong to FA: Lunarmagic , please don't use either one without permission.

As always, read, comment and enjoy!


For the common druid, sitting among all of the glory of nature and observing the flora and fauna was a normal part of every day life.

For a druid as skilled as Marama, it was a wonderful and harmonious experience to sit among the vast greenery and bask in the natural energies that it provided. Though invisible to the less skilled, every plant, animal and breeze of air through the forest carried a unique aura, sometimes in the form of glowing dots of light, sometimes as nothing more than a gentle aroma that only more talented noses could pick up on.

Marama happily drowned in the sensations, taking in a deep, full breath and absorbing all of the auras of the world around him. There was a moment of truly harmonious peace and relaxation within him as he sat within the short grass of a forest pathway, his legs crossed over each other, and his paws resting in his lap as he enjoyed a little meditation. His long, large wings of black wrapped around his body, acting as a shield from the unlikely, but still possible sets of prying eyes that might be around the forest.

His own eyes, an icy blue that nearly matched the vibrant shades of his headfur, and the accents around his tail, came to close as he sunk into a deeper feeling of calm than most people could achieve. Even with his vision cut off from the world, in the darkness of his relaxation, he could see those same sparkling lights of the auras of nature around him, including one that was decidedly a fauna, one that was coming closer to him.

Pursed lips curled up into a warm, friendly smile as Marama reached out a paw, the bright, blue fur upon it providing a cool appearance, and a false contrast to the warmth that was actually within his flesh. Though his eyes didn't open, he could see tiny dots of light within his mind, small, blinking gatherings of orange and teal that kept coming closer and closer to his offered paw, until he could feel the delicate, soft brush of fur against his pawtips.

"It would seem I have a visitor..." he whispered to himself, keeping his eyes closed, even as a deer closed in on him and nuzzled into the paw that he reached out to her. Just from the touch alone, he could feel the spirit of the animal that made contact.

He couldn't feel the fact that it was hiding something from him.

"Come to join me on such a lovely, peaceful day?" he asked, sharing a special connection to nature that meant the animal might understand his inquiry. Marama didn't need his eyes open to feel the golden rays of the sun bathing upon him, or the perfect, balmy warmth of a late summer day, just hot enough to still be comfortable for him to be wearing his bright, emerald green robes, with a comfy, loose pair of black pants underneath. Right against the ankle of those same garments, Marama could feel his surprise visitor starting to nestle in, but it didn't seem that his new friend was content with just a simple nuzzle.

Physical, emotional, spiritual, and even sexual energies were shared with nature when one was a druid, and it meant that Marama could feel the more sensual energies coming from the deer as it came closer to him. It was certainly a doe, and one that was feeling at least a little bit amorous as Marama was finally forced to open his eyes.

It was the feeling of a cool, gentle nose, pressing into the inside of his thigh and imploring a strong, sexual intent that finally brought the canine druid back to the real world. Connected to nature in every feasible way, it wasn't uncommon for druids to share a sexual relationship with all of the animals that nature could offer, and sometimes, even the flora, but Marama had always done his best to avoid such encounters, and simply study the mating habits of other animals.

This one was far more intent on sharing an experience than it was on sitting around.

"I'm afraid you've come to the wrong place," Marama whispered, truly enjoying the company of the affectionate doe, but still unsure of if he could really bridge that gap, and share a more sensual moment with a feral creature. "Y-you may need to find someone else to...relieve you," he tried to find the right words, and his voice stammered just ever so slightly as the doe continued to press her muzzle into his lightly covered thigh. His pants were thin, and did little, if not nothing to dull the sensations of a thin, flat tongue pressing into the fabric.

Normally, through words, a doe wouldn't have been able to reply.

This one, however, was no ordinary fauna, and Marama was foolish to have focused on the slim, delicate figure of the doe, instead of the bright, olive eyes that tried to avoid looking into his own. She knew it would be a dead giveaway, and it was only a matter of time before the facade came undone.

"You...you feel very familiar," Marama admitted, as the doe stepped her front hooves into the small gap created by his crossed legs. Her particular energy started to change, and within the swirls of bright teal, Marama could see dots of olive starting to form, and slowly, light was gathering to the doe in an aura that even a normal being could easily see. "Wait a minute. Y-you're...Ithilwen?"

"Took you long enough..."

The words came out in a voice of a slightly higher pitch than Marama was used to hearing, but he'd finally put the pieces together.

"And would my darling sister like to explain what she's doing, trying to nuzzle into my crotch?!" Marama demanded, as he saw Ithilwen gathering energy into her figure. The doe form that she'd taken was just one of many that she'd acquired in her life as a druid, but in her haste to transform and surprise her brother, she'd left behind a rather valuable asset, one that she couldn't create with magical energies. "...Naked, No less..."

"Just having a little fun experimenting," Ithilwen tried to explain, acting as though she was innocent in all of this. "I'm afraid I didn't anticipate just how ruthless the sexual drive of a deer could be; it clouded my judgment a little."

" A little?!"

Ithilwen giggled as her body rapidly shifted. "You can't tell me that you haven't thought about it too, Marama..."

Unmoving, and yet, clearly moved by the whole situation, Marama tilted his head a little bit. "Thought about what?"

"All of the time we've spent together in nature..." Ithilwen started to speak, her voice tinted with drawls of lust as the hooves at the end of her paws started to grow back out into flesh, giving her proper pawtips once again. Her legs filled out, the very thin ankles of her cervine form giving way to fuller, thicker ankles and thighs, ones that Marama had done his best to never appreciate, despite his having seen them in the buff so many times. "Surrounded by every possible natural aphrodisiac, often times completely naked with nothing to hide behind..."

"Th-that's just duties of the lives we live!" Marama protested, but his voice was weak and wavering as he did. As Ithilwen changed back to her natural form, with the tawny brown of her doe shape fading away quickly to a coat of brilliant white, a pattern of turquoise and cyan moved up from the backs of her thighs to the small of her back, over her shoulders, and even into the very ends of her headfur, growing long and covering up the middle of her spine. The colors, vibrant as they were, faded into an onyx shimmer as they approached her ears, rimmed with a similar black that highlighted the rest of her pure, white fur.

She was gorgeous, and Marama, a very proper and studious druid, lived with that fact, doing his best to never let his mind travel down such forbidden alleys.

That didn't mean he was incapable of slipping, of course.

"We willingly accept those duties, as druids of nature," Ithilwen reminded him, as she slowly stood up and over her brother, not normally standing taller, but as he stayed seated, she towered over him, leaving him eye to eye with the most delicate part of her female anatomy. "And I willingly accept the desires that nature implores upon me...faithfulness to the laws of nature is our nature, is it not?"

Marama could feel his voice slipping just as quickly as his resistance to what seemed to be coming, and his eyes were instantly glued to the thin, tight, and narrow folds of his sister. "Y...yes, Ithilwen, t-that is what we're supposed...supposed to follow..."

"And nature has told me time and time again just how attractive my brother is...I can feel how perfectly your aura blends with my own, and you can try to deny it all you want, but..."

A paw reached down, the very delicate pawtips of black fur brushing along Marama's cheek as his sister smiled over him. "I know what a serious student you are, Marama...and I've seen the way you've studied me in my most private moments. I want you to show me how much you've learned..."

"But...I-Ithilwen, I...I can't, we can't!"

"And would you deny our very nature, brother mine? Would you deny your sister the experience she's dreamed of...and deny yourself your own fantasy?"

As the years had gone by in their lives, Marama and Ithilwen had more awkward encounters than what might seem normal for a pair of adult siblings, and while Marama could admit that a couple of them were no accident, at least on his part, he was only now starting to realize just how much of it had been intentional by his sister...and where she was ready to go; the delightful aroma coming from her womanhood was simply intoxicating, Marama was still clinging to a forlorn notion that what she proposed was not just wrong, but a taboo beyond anything he'd ever imagined before.

Certainly the more innocent, shy and studious of the two, Marama sat back with a bright flush in his cheeks...and an impatient, brash and adventurous Ithilwen took a tight grip of his headfur and tugged his head closer, pressing his muzzle right up to the waiting, delicate flesh of her slit, and drawing a yelp of surprise from her timid brother.

"You've watched me masturbate before... shamelessly at that. Don't deny what the aura of the world is telling you, Marama...do what feels right...do what I know you want to do."

Marama was an honest man; no one could deny that, but still, he was trying to deny just how highly aroused his sister made him. His lips were already starting to tremble as his eyes widened in shock, and without a chance to contemplate his decision further, Ithilwen forced his parted maw to press against her sex, the warmth of his breath immediately caressing over her tender, sensitive body as he gasped in surprise.

I...I can't... he thought, but even the pleas within his mind were getting weaker, and the whole time he'd been close, he could feel the delightful, natural scent of his sister working like a venom, paralyzing his resistance to the moment, until his bright, icy blue eyes finally glanced up into narrowed, devious olives...and he allowed his tongue to press forward.

"T-that's it..." Ithilwen groaned, her voice dripping with the satisfaction of a fetish realized in such a way that so few people could ever experience. "Show me...s-show me what you've learned, Marama! Guide your tongue through the treasures of my womanhood..."

To betray his better sensibilities and move forward with the act that his sister so desperately implored of him would be a fault, for Marama.

To ignore the greater cries of nature, telling him to mate with his sister in the peaceful, covering forest, surrounded by the plants, animals and earth that they so deeply loved, however, would be a sin.

Ithilwen squealed in delight, biting her lower lip as she could feel Marama starting to sink further and further into the natural pleasure of the moment, while drifting further and further away from the sentimentality of society, forgoing the fact that they were kin. The graceful and passionate strokes of his tongue were like masterful passes of a paintbrush over a canvas, gliding with implicit ease over the sensitive folds of her labia and drawing out more of her most private aura. That same, glowing light came to a physical manifestation in the growing beads of moisture that came to rest upon her womanhood, like sweet, ethereal fruits to be picked from the most perfectly blossomed trees. With greed that started to grow beyond his control, Marama slipped his tongue back down along the gathering lubrication, embracing the natural delicacy that was his sister's waiting snatch.

For the standing female, now fully in her natural form, it was a sensation that surpassed anything she could have imagined. Her knees grew week, and immediately, her thighs began to tremble as she rested both of her paws on Marama's head, using him as a place of balance as he continued to probe deeper into her petals. "T-t-that's unreal, M-Marama...Without so much as ever h-having touched me, you...you know just where to t-touch me..."

I've watched you enough times, my dear sister...I know what you like. Allow this to be my tribute to you, and the beauty that nature has blessed you with...something I'd been too ashamed to admit before.

The words would have been as sweet as fresh nectar from a flower in bloom, had Marama been able to talk, but Ithilwen didn't want anything to stop the shock waves of pleasure that were starting to radiate through her body. Her claws were raking and scraping against the flesh under all of the tussled headfur, as Ithilwen looked for any port in the storm that was her growing pleasure, but at the very first pass of Marama's tongue along her clit, the erect bud exposing itself to his urging, there was no foothold that could possibly hold her.

" M-Marama! YES!" she cried out, her voice devoid of shame. She and her brother were doing as nature intended in the very grasp of the forest itself, and to her, shame would make no sense. The only logic could find was in slowly sinking down to her knees when her legs shook so feverishly that the soft, plush grass between her toes started to come out of the ground, but, entranced as he was by her sweet, earthy flavor and the natural aromas that came from her, Marama was like a bee to a flower, refusing to leave the comfort of the petals, even after the flower had been picked. It led only to more pleasure for Ithilwen, who felt the long, flat, smooth surface of her brother's tongue gliding up along the thin, toned map of her stomach, following the very subtle curve of her navel to the underside of her breasts, before she finally caught herself. "You...I h-hope you had your fill, Marama...the flower of my love for you is ready to blossom..."

Being so at peace with nature gave a certain clarity to everything in the life of a druid, but the admittance of her love for Marama still left the latter in a state of mild confusion. If there was time to be with her in the future, however...

There'll be time to discuss it later, he thought. There was an aspect to his druid nature that he couldn't deny, whether Ithilwen were his sister or not, to tend to the natural needs of the flora and fauna in the world around him...and right now, Ithilwen's aura was overwhelming him with the radiant lights of a strong natural need.

"Not for nature..." Marama finally started to speak, as his tongue, greedy in its pursuit, licked the rest of the warm, slick moisture from the delicate fur upon his muzzle, "But for you, Ithilwen, I'm more than happy to answer that call."

Ithilwen, already kneeling, started to lean forth. Her brother's head was just about level with her breasts, and she took a moment to embrace his head into the warm, soft comfort of her bosom, her arms very gently draping around the back of his neck as she did. "If you don't feel the same, brother-

"If I didn't, I would never have offered, Ithilwen."

There was a warm, playful stroke along the back of Marama's head, as Ithilwen allowed herself to be a bit more comforting for just a little longer. She knew just how great of a change this would be to their relationship, and she was sure that her confession and actions were too sudden for him to handle all at once...and yet, he'd done quite an amicable job at it, leaving Ithilwen without a doubt in her mind, as to her next move.

She released the back of his head, rested her paws on the loose, comfortable emerald robes that confined him, and gave a very gentle push at his shoulders, encouraging him to remove the garment. "Then...don't hold anything back, Marama. Remove these needless clothes, and show me the love that you've hidden away."

Marama was expecting at least a little help with the outfit, given her actions, but he was surprised to watch Ithilwen slowly turn on her knees, and lift the long, wide fluff of her tail up and out of the way. A very clean druid, Ithilwen took pride in keeping her body as clean and pure as the white fur she was blessed with, and once her tail was raised, her womanhood shown again with the mixed glisten of her own liquid desire and his saliva upon it, and just above it, the tight pucker of her tailhole was purely visible.

It was a sight that could make any man, even her brother, jump right out of his clothes in their haste to mate.

"If that's what you truly want..." Marama started to speak, but he trailed off as his eyes were completely controlled by the slow, subtle sway of Ithilwen's hips moving back and forth. She could feel the sexual energies building within her brother, but until they were overflowing, she wouldn't dare to stop, and her every action was just another way to entice him. Captured by her natural deviance, Marama was quick to undo every cloth button that kept his robes together, feeling no need to return the favor of teasing his sister. It felt like an eternity to the tempted male to undo all seven buttons, but the moment they were undone, he cast the robe from his body without a thought, and his pants, kept around his waist by nothing more than a simple rope, were easy enough to undo. The moment the knot in the rope was untied, the loose, baggy pants fell to the grass of the forest floor in a pool of black threads, harboring no more clothing underneath.

There was only Marama, finally standing up and out of those pants, fully nude to his sister, just as she had been to him the entire time.

"Don't try to deceive me, brother," Ithilwen said with a quick, teasing snicker. "To betray what your body has been telling me all of this time would be wrong..."

The loose pants that Marama was wearing before did a surprisingly bang-up job of keeping his excitement contained, but as they hit the forest floor and left the male druid entirely nude, Ithilwen got an eyeful of the delightfully canine anatomy of her brother; his cock was already emerging from the soft, light blue sheath that surrounded it, and she could see the way his sack tightened up and squeezed around his lightly furred orbs with each breath; the mere sight alone was making her salivate.

"And don't you dare keep that cock away from me any longer..." she drawled off, reaching a paw back to give her soft, smooth rump an enticing swat, one just loud enough to snap Marama out of his shyness. The need that her body felt was now echoed by his own, and for a moment, Marama didn't see his sister, and the false image of purity that he tried to cover her with.

He only saw a female canine, bent over and presenting herself for mating, and the glistening treasure that waited just under the delicate fur of her lifted tail.

"To deny a female of the earth something that she so desperately needs," Marama started to speak, as he approached his sister once again, slowly falling to his knees behind her and resting his paws on her lower back, "Would be a betrayal not just to her, but to myself, as a druid...even if the call should come from my own kin, I...I m-must answer it..."

Marama's dedication to his craft and his lifestyle were actually quite the turn on to Ithilwen, who found arousal in his conviction. The slow, lazy stream of liquid desire that drooled down from the bottom of her folds gradually increased, starting to seep into her fur and leave it wet and messy. Her body had given off every conceivable message that it was ready for this, and finally, her brother was going to answer the call.

Always having seen Marama as the more innocent of the two, Ithilwen wasn't expecting her brother to be amazing, but the way she lusted after him, she'd created an idea in her mind that he would be quite skillful with his hips.

"B-by the gods! Marama! Yo-you're huge!" she cried out, her expectations not only surpassed, but entirely shattered as Marama gripped his paws tightly into the soft fur upon her haunches and pressed the very tip of his cock up against her labia, giving off the illusion of a slow, gentle press...there would be no such thing from a male who had been teased so heavily for so long. There was only a long, deep, powerful thrust, one that impaled Ithilwen on a cock that she never quite saw fully erect...but even seeing it would never have prepared her for feeling it slam up against her cervix.

A low, desperate grunt escaped Marama only moments later, as his arms wrapped around the long, fluffy tail of his sister and he pulled it in close, using it as his leverage to stay mounted over Ithilwen's body. The soft, fluffy appendage smashed in against his chest, and the tip flailed about wildly as Marama plunged into the deepest depths his sister could offer, finding a strange pride and delight in having literally found her capacity after just one thrust. It was such an exciting prospect that he rapidly drew his hips back, and even as Ithilwen gasped and looked back at him with wide, worried eyes, panting "W-wait, slow down!", it didn't do any good. Marama's body came forward again with even more force than his first pass, his hips slamming into Ithilwen's prone rear, and his sack slapping up into her clit as their bodies collided again.

It took more than a moment to adjust to, but once the mild pain of being so brutally taken subsided, Ithilwen found her pleasure rapidly surpassing even the elation felt by her brother.

"How...nnnyes... how very rude of my brother...t-taking me so roughly! B-better teach him a lesson..." Ithilwen grunted and groaned, trying to make her way through even just one complete sentence, but the rapid and constant pounding against her hips was making it hard to focus, and the way that her inner walls struggled to clench around her brother's thick, throbbing cock, unable to ever quite get a perfect grip on it, was a pleasant distract itself. It did nothing but please Marama, who could feel those tight, slick inner muscles trying to grip around and milk his cock, but with a hip-slamming pace, Ithilwen's body couldn't quite catch his manhood...

...But she could press back against him.

Marama had been in full control of the bout, keeping his sister pinned into the soft, low grasses and dirt of the forest floor in their doggy style session, but Ithilwen was quick to show that she could steal the reins any time she wanted. Her hips, more powerful than their narrow, yet curvy nature might let on, pushed back against her brother with a subtle, slow draw at first, before she licked her lips and glared back at Marama, throwing her hips into him so forcefully that it actually broke his rhythm. "I-if you're...gonna fuck me that way...y-you'd better make me cum, Marama...you need to make your sweet, innocent little sister cum!"

The idea of innocence had long since been lost, and Marama saw right through Ithilwen's words, but she was certainly very sweet, and sensual to boot. She knew just what to say to milk a little extra effort out of her once reluctant brother, getting to him in just the right way to force his hips into another gear. The quiet, empty forest was rapidly filling with the sound of two sets of hips mashing into each other with perfect timing, Ithilwen pushing back to meet her brother's thrust each time that his hips came forward. He thought he'd been deep inside of her before, but with their bodies working in unison, he could feel the head of his cock actually rubbing back and forth against the tightest inner muscles of his sister, a sensation he found too pleasurable to resist. Ithilwen knew exactly what she was doing, and Marama had fallen right into her trap.

She needed his cum, and she was going to get it, no matter what it took.

"I-Ithilwen..." Marama let out a low, shy moan, his voice clearly still a few steps behind what his body was doing, "I d-don't know...how much...gods... how much longer I can-

"Then don't!" Ithilwen quickly cut him off. She lowered her cheek down into the plush comfort of the grass below her body and reached back with her paws, finding that she could just get her pawtips to grip her brother's hips. Not wanting to let him out of her body for even a moment, she did her best to hold him inside and contain him, knowing that the wet, slippery mess that was spilling from her cunt was at least partly her brother's precum, but that wasn't good enough. That wasn't naughty enough. That wasn't fulfilling enough. "Do it, Marama...do just what nature intended you to...p-please! Drown the heat of my arousal with your wonderful seed..."

The auras within the bodies of each druid started to illuminate the slowly darkening forest, as the sun was going down on the day, and the extra veil of darkness provided a sense of privacy for the incestuous pair, one that helped Marama relax for the final moments of their lovemaking. Tiny dots of their energy strayed from their bodies and flew through the air like a herald of fireflies as their sexual prowess reached a peak, and nothing that came from the voice of society could reach Marama any longer. There was only the voice of his lust and love for his sister, commanding his body to finally let the walls come down.

"This feels s-so good, I'm gonna c-cum...I have to, sister! Y-yes!" Marama voiced the last of his internal conflict, as he could feel his stomach starting to tense. His sack tightened up like a vice around his orbs, and his body went rigid as the knot at the base of his member pressed firmly against Ithilwen's womanhood, spreading the once tight folds of her labia wide open. Nothing would stand between Marama and a proper tie, as his claws dug deep into the delicate flesh of Ithilwen's soft tail, and his hips hammered into her body, leaving her rump sore under his pressure, until he could hear, and Ithilwen could feel the bulb of flesh finally forcing itself inside of her with a wet, slick schpop!

I can't turn back now...I...I've knotted my sister, and it feels so good! I'm cumming inside of her and I don't even care...it's amazing! Marama thought, the chorus of his moans continuing in his head as Ithilwen arched her back, allowing her paws to reach her brother's rump. She dug her claws into that soft, sensitive flesh and gripped tightly as she simply needed something to hold onto, something to help her body handle the sudden onset of a feeling of such fullness. "Th-that's it, my dear, sweet brother...f-fill me...fucking fill me! Yes! L-let me cum with you...let me cover you!"

A rush of wet, slick warmth poured from Ithilwen's stuffed snatch, one that would have been much more prominent if not for the thick, rounded bulb of canine flesh that stuffed her up. Even as she felt burst after burst of hot, sticky cum pouring into her vaginal passage and up into her womb, having nowhere else to go, her own ejaculate slowly trickled down to the forest floor, leaving a shimmering spot in the grass just below the very peak of her folds. The streams continued to spill out of her, with small trickles of excess seed following suit, as Marama quickly filled her to capacity, and let his canine nature take over.

Ithilwen started to lose track of the minutes as each time Marama's flesh pulsed within her, a fresh streak of thick, heated mess spilled inside of her body. She could feel the flood filling up her womb with a delicious, comforting warmth, one that might finally put her insatiable desire for her brother to bed, at least for a time.

"S-sorry..." Marama finally stammered out, knowing that he couldn't possibly break away from Ithilwen for at least a few more minutes. "I guess we're gonna be here for at least a little while longer."

Ithilwen was still panting from the pleasure that raced through her body. Every time she was given a fresh dose of cum, she felt a pleasure inside that made her body tremble around Marama, passing some of that ecstasy back to him in the process. "Stuck to my b-brother...while he cums inside of me, deep in the forest...?"

Marama blinked and tilted his head a little bit.

"I can't think of any better way to spend the evening..." Ithilwen admitted dreamily. "Just what are you apologizing for?"