Sibling Rivalry

Story by StrangeBreed on SoFurry

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#2 of Dragon World

It took a while to get this finished, and I've been working on it for quite some time, but finally here is the next chapter to fyrdrgon's Dragon's World series. Chapter three is soon to be completed so much less of a wait for the next one. This one follows Fyr as she has a sexy encounter with her brother Kao. Was fun to work on this and I hope you all enjoy it.


All characters depicted in this work are purely fictional and over the age of consent. Any situation is meant as parody and does not represent any child, living or otherwise.

...

Fyr slowly awoke with a long stretch, a shiver running under her red scales as she yawned out. Her eyes slowly opened up as she met the first signs of morning, the light of the sun leaving the gentlest sting. The young dragoness looked up at the ceiling, a concerned look on her face as she thought over what she had seen just a few days prior. The image of her brother mating with her mother still left her in shock, Fyr's mind continually going back to that moment as she struggled to deal with the reality of it. She eventually got up to shower and was soon on her way down to breakfast. Kaoshin was already seated at the table when she arrived, the young blue dragon eating his second piece of toast. "Hey" he said to his sister as she poured herself a bowl of cereal, crunching down what was left of the jelly coated bread.

"Morning," she replied nonchalantly, shaking the images out of her head as she sat next to her brother at the table, "You ready for that test?"

"Ugh, miserable Fridays!" the dragon growled as he lay back in his chair, rubbing his eyelids, "My English teacher's such a dick!"

"Eh, I'm sure you'll do well," Fyr said thoughtfully, tasting the first spoonful of her bowl, "Besides, it's English, how hard can it be?"

Kao let out a little chuckle, the sound of creaking steps ringing out nearby as their father entered the room. "Hey kids," Orrix said as he stepped over to the freshly brewed pot of coffee on the counter, the black dragon pouring himself a cup, "You just about ready for school?"

Fyr watched her father's every move, and found herself drawn to the contrast of his jet black scales and the way they met with brighter yellow tones on his frills. Her eyes lingered slowly down his back, grazing over his work clothes until they met his ass. It looked so firm in his snug dress pants, so fit, so welcoming. She shook her head as she shooed the thoughts away, wondering just what the hell was wrong with her. "Yeah pretty much," Kao answered for the two of them, getting to his feet and looking to his sister, "You just about ready Fyr?"

"Hmm?" she whispered in a daze as she looked over her father's suit bound chest, "Y-yeah, what, yes, yes I am, ready!"

Kao tried to hold back a grin as he noticed what Fyr was staring at, his face scrunching up as he held back a chuckle, "Alrighty then sis."

"You kids want a ride to school?" Orrix offered, offering a way out of the bus.

"That'd be great dad!" Fyr said brightly.

"Yeah, thanks a lot" Kao added.

"It's on my way this morning and my shift's a little shorter anyways, two hours less to be in fact, and then my long hours are taking a break for a while."

"That's great!" Fyr replied enthusiastically, starting to blush around her dad, but not really sure why.

"Figured I'd take Sasha out for a nice night, maybe go dancing, nice dinner, the works," the black dragon looked at his two children sternly now, "No parties while we're out tonight you hear?"

"Yeah, yeah, we'll be good" Kao shrugged.

Fyr nodded, "You can count on us dad."

The father grinned as he rubbed his palms against their heads, Fyr smiling as Kao scowled, "I know I can kids, alright, get your butts in the car so you're not late!"

...

School was uneventful for the most part that day, each young dragon keeping their minds mostly to their studies. However, as the clock ticked on Fyr found herself drawn to the temptations she had felt in the kitchen that morning. Her father was fit, strong, quite sexy for his age, but he was still her father, and despite her getting all tingly at the thought, she couldn't help but feel guilty with each passing thought. Then her mind began to slip elsewhere, the memory of what she saw her brother doing resuming its nagging persistence. She had seen Kao naked many times before, they were siblings and it was natural. They changed together, passed by each other's rooms nude before and at very young ages had even bathed together. But now, there seemed to be other angles to those thoughts, the sight of Kao's naked body thrusting into their mother having awoken a curiosity Fyr hadn't perviously realized she had had.

She had never quite seen him fully hard, the closest such experience being the time he had just woken up, Fyr catching a glimpse of it at half mass. She had brushed her teeth before when he was showering, and vice versa, and swore she heard a grunt or two, but nothing much otherwise. Now the curiosity was nagging, visceral and beginning to feel a tad relentless. She tried to fight it, but it was like swimming against the current of the Ocean, the strong waves of thoughts drowning her psyche with each breath she would struggle. When the bell finally rang she hurried on to the bus, hoping to get their early enough to find a seat far away from her brother's.

...

"This was a wonderful idea!" Sasha whispered to her husband that night, the beautiful blue dragoness, grasping his hands as they danced together. The ballroom they were in was lit to perfection, not too bright, not too dim, its furnishings elegant but subtle as the crowd danced to the gentle tunes. Piano, saxophone, trombone, trumpets, and a drum kit played with wooden brushes to dampen to sound, soft crunching slurs to follow the various keys and horns.

"You look so beautiful tonight darling," Orrix whispered to his lovely wife, caressing her sides ever so gently, "I'm just so happy I can spend much more time with you now."

Sasha flashed her eyes at him as she grinned contently, clutching him very closely as they swayed to the rhythms of the room, "I've missed you, I can't wait to have you home for so much longer!"

"I hope," Orrix began, his hands sliding down lower, teasingly on his wife's frame, "I haven't left you too restless!"

Sasha grinned as she thought over some of her naughty activities as of late, "Oh no honey, but I have missed your touch!"

"Well you will have it!" he growled kissing her neck. Sasha tried to hide a moan as her husband became rather ravenous, holding back her secret of how she had remained satisfied during his absence.

...

Kao looked at himself lazily in the mirror as he brushed his teeth, letting out a single yawn. School had been long and boring as ever, and he decided he might hit the hay a little earlier than normal. The sound of running water trickled in the shower beside him as his sister stood inside, her blurred silhouette catching his eye more than once. He eyed her shadowy frame delicately, and found himself rather roused, a small part of him wanting to see more. He had just claimed his mother after all, so why not his sister too? The thoughts were dangerous, but he enjoyed them. Even if they were just reflections he found a hidden joy in mentally expressing his taboo desires.

Fyr was feeling rather odd herself as the warm water fell over her scales, dripping down her body in slow droplets as she sighed from its relief. Kao was just outside and her thoughts returned to a darker corner, the images that hit her head at school returning at full force. She slid the side of her shower door open for just a moment, almost sending a playful quip her brother's way. Instead she was silent as he bent over the sink, spitting out the foamy collection of used toothpaste. She looked at his firm butt and followed the waist line of his boxers all the way to the front, seeing the bulge that tented the front. She sniffed at the air for a moment and caught it, the lingering scent of Kao's arousal as it hung in the air.

She immediately closed the cracked door and panted in the shower, almost panicking from the warming heat that filled her frame as she inhaled the scent of her brother. Her body was pumped full of adrenaline as her hormones flooded her sense of conscious, the only thing she was able to think of being the touch of her brother. She breathed a long sigh of relief when he finally left the bathroom, done brushing his teeth and off to bed assumably. After she had dried herself with a fresh towel she lay in her own bed, stewing over the thoughts that had continually teased and tortured her.

"Cum inside me!"_she could still hear her mother moaning, the sight of her brother rutting into her filling her mind's eye. She imagined what her brother's shaft must have looked like as it slid in and out of her, for a split second seeing her vagina in place of her mother's. _"Here you go!" it was Kao's voice next, holding his dripping cock over Fyr's mouth in offering. She was just about to seal her lips around it when she shook the thoughts out of her head, hopping out of bed as she could take it no longer. She needed to speak with her brother, even if it was awkward or caused a fight, she couldn't just stew in her worries any longer. She stormed off towards her brother's room in her own mental frenzy, giving the wooden frame of his door a gentle tap with her fingers.

"Come in," Kao said gently from the other side, clearly just lying in bed and not quite asleep yet as he looked at Fyr when she entered, "What's up?"

"We need to talk," she looked at him, rethinking her tone soon after, "Err umm, I mean, I need to talk to you..."

Kao smirked as he looked over his sister's slender, pretty body, the dragoness only wearing her shirt and a pair of panties, "Dressed for the occasion I see?"

"What? Oh god!" Fyr whimpered out, quickly covering herself up with her arms as a blush filled her cheeks.

"Nah, it's ok," the blue dragon giggled, "It's nothing I haven't seen before."

"Yeah, about that," her leg shook as she felt anxious, now fully nervous about broaching the subject, "Lately I've been thinking a lot about you having seen that before."

"Oh," Kao said a little confused, his eyes soon lighting up, "Oh!"

"Yeah."

There was a short pause between the two before Kao sat up, rubbing his sister's back with a hand, comfortingly rather than sensually, "That's ok, I mean, it's not like I haven't thought of that before."

"You have?" Fyr blushed even brighter, hiding her face in her wingspan a little, "Isn't that wrong though?"

"A little..." Kao whispered, "Can you keep a secret?" She nodded in response. "Mom and I well, well we..."

"I know," Fyr said plainly turning to face the shocked expression on her brother's face, "I saw you, in the kitchen, hell I even heard you in the laundry room, seen you two sneak kisses, Kao do you know how dangerous that is?!"

The blue dragon gulped as the subject seemed to have changed, Kao now left to defend himself. "Hey we both know the risks, and I'm careful, and she's careful, and, an-and beside," he suddenly found an opening in the argument, "I saw the way you looked at dad this morning!"

"What?!" Fyr growled defensively, trying her best to hide the fact she had been caught, "I don't know what you're talking about!"

"Oh, of course you do," Kao said with a vicious grin, "The look in your eyes as you sized him up, hell that's the way I look at mom!"

"Kaoshin!" she growled his name in full, "I can't believe you'd say something like that. Do you know how risky all this is? What it could do to our family?"

Kao reached for a hug behind her, hands running along her sides as he whispered, "Not if we're careful."

"Stop that," Fyr whimpered, feeling her hear beat intensify, "Please Kao, stop." She could feel a warmth from deep inside her welling up as she was turned on, realizing now just why she had been thinking all of her strange thoughts. Her heat had begun, subtly, slowly and just at its start, but it couldn't be denied. By the temperature of her body, the hunger in her eyes and the longing in her mind, her heat had truly began. "I don't w-want to" she half lied as she looked away, her cheeks red as embers. She shuffled away but fell, laying back on her brother's bed as he leaned over her, leaning his body against hers so they just touched ever so slightly. She could feel the warmth of his breath as he pinned her down, know realizing that Kao could hear the hollowness of her threats. "Wh-what was it like with mom?" Fyr asked in almost a whimper, her body shaking as she felt the poking of her brother's hard on.

"It was wonderful," he sighed as his boxers were stretched out from the strength of his reaction, a tiny bit of pre releasing his scent into the air, "I woke up to it really, we slept together on the couch while you were out with your friends." He paused to enjoy the look of confusion on his sister's face before continuing, Fyr showing a mix of discomfort and lust, "There she was, her beautiful eyes looking back up at me as she wrapped her lips around my cock, sucking on it slowly as she hushed my worried grumbles. Then before I could cum... I asked to taste her."

Fyr's eyes raised, "What did she taste like?"

"I can't even describe it," Kao began, it was like this wonderful feminine honey, a scent that was uniquely hers, so strong, so lovely, yet so forbidden, I had to have her."

"A-and you did" Fyr didn't need to hear the rest, she had witnessed it.

"On the couch," Kao told the tale anyways, "On the kitchen table, in the laundry room, in her bed, in this bed!" He stopped letting the words tickle Fyr. He could see her resolve dissolve in front of him, her heat and his story a deadly combination. He rubbed his palms over her legs, not touching her privates but getting close enough to almost spread them.

"I have," she began, pausing for an anxious breath, "I have been looking at dad differently. He's my father yes, and I'll always see him that way, love him that way, but there's something else now." She almost swatted Kao's hands away, but a long lingering tingle stopped her, the dragoness instead letting her brother touch her for now. "I see him as a powerful mate," Fyr continued, "A strong breeding male, I see what mother sees in him, and I want him!"

Kao sniffed at the air as Fyr's words ceased, able to smell the arousal in the air. She was wet, and he could tell. He moved his hands across her sides and to her chest, sneaking under her shirt and cupping her teenage breasts. He pinched at the nipples and rubbed the surface of them, but he would always stop suddenly, making sure to only tease her so much. Each time she would almost stop him, but then he would slow down and the thoughts of her father, of Kao himself and what lay between his legs causing her to allow a little more. "Maybe you should make a move on him," the blue dragon eventually suggested, kissing her neck gently, "Maybe he's as perverted as mom!"

"Kao," his sister whimpered at those words, trying to curl up defensively before he pinned her back down, lifting her shirt up so he could kiss each of her breasts, "Y-you're teasing me, wh-why would you say that? Why would yo d-do this-mmm" Kao kissed down her chest slowly until he reached her panties, pressing against them with his mouth to let out a long, heavy exhale of warm breath over her privates. Fyr moan loudly as she shook, kicking a little, eyes squinting as her brother kept letting out warm exhales over her panty shielded sex. "Oh god, Kao, K-Kao that, that feels, ahh!"

"Do you want me?" Kao whispered as he stopped, the two now looking at each other in silence, each only wearing a single pair of underwear, "Tell me you want me, like you want dad, and I'll show you what it feels like, to do what you saw mother and I do... what it will feel like with dad."

"Kao!" she whimpered again, flushing red each time he would tease her with the idea of Orrix, "Stop saying those things!" She was quiet as she waited for her thoughts to work out an answer, her moral compass completing lacking a North and South as her heat spoke to her in rabid whispers. She focused on the bulge in Kao's boxers as warmth filled her entire body, thinking of her dad's cock, or at least how she thought it would look. She also reflected on her current situation, and caught up in temptation she wanted to know what her brother's manhood looked like and maybe, just maybe, what it tasted like as well. "I want you Kao." She had said it plainly, laying back and hooking her fingers in her panties. She slid them down slowly to reveal her slicked folds, the lovely pink flesh looking irresistible tucked between her lovely red scales.

Kao looked over them with a heavy sigh, feeling his own resolve faltering as his control of the situation was being dragged down into a lusty struggle. He grabbed his boxers to pull them down but stopped, grinning playfully as he continued to hide the sight from Fyr. "Kao, mmm, why?" Fyr responded to his teasing grin exasperated, trying to claw at his boxers before he pulled away from her grip, "I wanna see it!"

"Uh uh," he said with a twist of his finger, leaning his body down to move his lips closer to her folds, "Not just yet my sweet sister." She tried to protest more but stopped as she felt his lips suddenly press to her folds, letting out a shrill cry as her untouched flower was teased with long grazes of her tongue. Kao groaned over her folds as he was treated to the sweetest taste, his sister's virgin sex flooding his mouth as it reacted to a feeling it had never quite had before. Kao let out the longest sigh as he dug his tongue deeper, although not too far as it was met with intense resistance. The dragon's folds clutched his tongue in a fleshy hug, Fyr's virgin warmth radiating over the surface of Kao's tongue as his taste buds were tantalized.

"Fu-fuck, oh god!" Fyr wined loudly as she curled over Kao's head, his muzzle buried into her lap as his tongue darted over her sensitive petals, eventually finding her clit and sucking on it. She made even louder cries then, breath heaving out as he flicked his tongue over the sensitive nub over and over. Kao let out hungry noises as if he was eating his favourite meal, his face getting soaked with his sister's juices as he kept pressing his tongue to various spots. He stopped the moment he looked up to see tears her eyes, realizing he may have been going a bit too fast for her first time. She didn't seem frightened away though, and even clutched his head as he gave a few more, softer kisses. "I wanna see it..." he eventually heard his sister whisper again, her hands grabbing at his arms as she tried to lift up, "Let me see it!"

A smirk filled Kao's face as he stood up, slowly pulling on his boxers in response, "Alright, I guess now's as good a time as any." His cock sprung out as soon as the boxers had been tugged down, now free to stand at full attention.

Fyr looked it over for the first time with immense interest, her eyes going wide as she reached up, sizing it up with her hands. She cupped the balls with her left palm as the right stroked the shaft gently, feeling the hints of rubbery barbs as she gripped the thickness, watching as the tip released a single drop of pre. "Holy shit Kao!" she moaned as she kept rubbing it, obsessing over just how perfect she found it. It was big, heavy and thick, a welcoming shade of jet black to contrast his handsome royal blue scales.

"You like it huh?" Kao sighed as his sister's soft hands rubbed it in smooth motions, the red dragon moving up closer to kiss the tip. She shuddered from the salty taste that met her tongue, slowly sucking on the head until it sprayed a quick shot of precum into her muzzle.

"You taste so good Kao!" She moaned, gripping the shaft tighter as she swallowed more of his hard length down. Slowly but surely she managed to get most of his length swallowed down, her heat only growing inside her as her throat was filled with the thickness of her brother's manhood. It had such a masculine scent to it, and the aided taste of the salty drops of pre only got her all the more excited. She rubbed her damp folds with a couple of her fingers, sliding them over the surface of her sensitive petals in delicate motions. She stopped for a short breath, patting the dampened head on her lips and nose, breathing in slowly so her brother's masculine scent could fuel the fire to her blistering heat. She got up onto her knees and pushed her brother down, allowing him to lay back as she moved her lips down to her brother's balls. She sucked on each orb firmly, getting a satisfied grunt from him. She then placed her tongue over the sack's surface, dragging it up along the shaft slowly, ending with a lingering tease on the underside of the pulsing cockhead.

"Oh my god Fyr!" Kao panted, his breath heaving from all the tension, "Where'd you learn all that?"

Fyr was unable to hold back a grin as she suckled the head of the dragon's cock, slurping up what pre slipped out with her tongue, "Just 'cause I'm a virgin, doesn't mean I've never experimented."

"Ooo," Kao smirked, face looking weak again as Fyr swallowed him down, "Looks like you've got more of a devious side than I thought."

Fyr wore a very satisfied grin when she finally finished her blowjob, stroking the saliva soaked shaft in her hand as she felt the warmth in her lower body continue to ember. "Kao..." she began to speak, nipping her lip as she thought over what she was about to offer, "Do you want to be my first?"

The blue dragon looked at his sister with surprised, but hungry eyes, his hand brushing the side of her face gently, "Are you sure?"

"Yes," Fyr replied plainly at first, "I c-can't stand to wait any longer!"

Kao nipped his bottom lip as a surge of lust filled his sense, his teeth bared as he reached down to kiss her. Their tongues pressed to one another and they could sample each other's flavours. The soft muscles slid along in a slow circle, the heat of their breaths exchanged as they shard a lewd animalistic kiss. Fyr slid over her brother's wait slowly, lining her pussy up to Kao's cock. She rubbed the damp folds over his throbbing shaft, in smooth slides, getting its surface slicked as she teased away her fear with arousing trickery. She closed her eyes as Kao's thumb pressed to her clitoris, a rough sting shocking her lower body as her brother pushed at her entrance only a little. "This is gonna hurt isn't it?" Fyr asked a rhetorical question, wearing a worried grin as she kept herself straddled over her brother's lap.

"I can't lie to ya," Kao growled in excitment, "It probably will a little," he kept rubbing her clit with his thumb, "Best not to think about it too much."

"Ok," Fyr nodded as she gripped Kao's legs, taking a deep breath as she steadied herself, "Go ahead!" Kao kept his thumb moving, increasing the pace so Fyr would be stimulated all over. He even lifted his head up to suck on each breast again, nipples fully erect as she was filled with another near orgasmic rush. It was then that Kao struck, choosing to push his entire shaft up in one quick jab. Fyr squealed in pain as her virgin walls were pierced, a small trickle of blood forming as Kao slid into her. It was quite painful, the massive length of her brother barely fitting as it stretched her out fully for the first time. "Ow, damnit," Fyr cried out in tears, a little laugh escaping her lips as well, "That did hurt!"

Kao did his best to keep his fingers over her clitoris, rubbing it gently to keep giving her increased pleasure. "Just try and relax," he groaned, "It'll ease up soon." He wasn't completely lying, it did take quite a while but Fyr eventually felt the slides into her becoming more and more pleasurable. Kao pushed harder each time, the dragon's folds tightening as she clutched the scales of his back. She let out longing, heavy moans with each thrust she took, the head of her brother's cock eventually finding her g-spot, pressing against it in a delicate motion.

"Oh my god Kao, that's incredible!" the pretty dragoness cried out, lifting up to join her brother's motions, her entire body tingling from the heavy waves of pleasure brought on by the strikes of Kao's cockhead. She bounced on his lap over and over, allowing the cock to strike down deep like a fleshy spear.

"Oh, f-fuck yeah!" Kao moaned out himself as he got closer to his own orgasm, soon finding the fight against the waves of pleasure nearly unbearable. Fyr eventually reached a point herself where she could barely balance atop her brother, mere moments passing before she found herself having to gasp for air. It happened all at once, Fyr firing out a squirt, unlike anything she had done before as Kao quickly slipped out of her, aiming up so his seed coated the dragoness' belly. With that, the pair dropped to the bed with a thud, both panting in near exhaustion as they recovered from their vicious fucking.

"Hey Kao," Fyr eventually broke the silence, "Promise you'll be careful with mom."

The blue dragon looked to his sister gently, "I promise hon, trust me we won't get caught."

"I don't know," Fyr said with uncertainty in her voice, "What if dad catches you?"

Kao chuckled, "Would it make you feel better if I made sure we only did it when he wasn't home?"

Fyr thought about that answer, nodding hesitantly, "Y-yeah I guess so, I mean, that would be a little safer."

"It's done then," he replied, "Now, our next order of business... how are we gonna get you in bed with dad?"

"Kao!" the dragoness growled back to him, turning a deeper shade of red in embarrassment.

"Oh please, the 'please fuck me' eyes were full force this morning," he flashed his eyes at her, "Trust me, I know what it's like to wanna bone a parent.

"You're so poetic!" Fyr said in a tone slick with sarcasm, "Fine! How the hell do you suppose I seduce him?"

"Well, first you need him alone. I bet he'll sleep in like a beast tomorrow, after all he just finished a long ass series of shit shifts."

"How come you never became a writer?" the sarcasm resumed.

"Shush!" Kao waved his hand before continuing, "Did you know the new 'Ransom House' film is out in theatres?"

"I thought you hated those movies?"

"I do, but dad doesn't know that," he noticed that Fyr was catching on, "It sucks how sick you got tonight while they were out, really came down with that bug fast! Now, dad's gonna be tired his first day off so he'll volunteer to watch you, while mom and I," he made quotations marks with his next words, "Totally go see that stupid movie."

"She'll never bone you in public" Fyr looked disgusted.

"Pervert! I wasn't even planning on-"

"Oh bull shit!"

"Off topic," Kao shook his head, "The point is, you two are alone, that's when you make your move."

The plan was put together quite well, but Kao was forgetting the most important part, "...and just how the hell do I convince him to sleep with his own daughter?"

Kao scratched the back of his head, letting out a nervous chuckle, "Well... we're definitely gonna have to get creative!"