Sharing the Lesson With His Sister, Part 2

Story by Joshiah on SoFurry

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#47 of Incest Stories (Others)

Some would consider Fenil to be a twisted little dragon, and others would think him to be the luckiest guy alive, in this commission for Dargon!

In the midst of fucking his own sister, Fenil gives in to her wiles and fills her with her very first load of cum, but when the incestuous siblings think they're all done for the day, they find that their mother, Vania, has been watching them almost the entire time!

A competition begins brewing between the two ladies to win Fenil's affection, and while the winner is unclear, the lucky dragon is sure to win out, no matter who he chooses!

As always, read, comment and enjoy!


Katya didn't experience the instant relief that pornographic films led her to believe she'd feel.

She didn't have some epiphany, where she realized that the only thing that would bring meaning to her life was a big, throbbing cock, spreading her insides apart and filling her just short of the point of discomfort.

What she felt was something much greater than that, as if she'd discovered that she'd been sleeping down the hall from the fountain of youth, and it just happened to flow from her brother's crotch.

"No wonder Mom w-won't leave you alone," Katya groaned, able to feel a tiny trickle of drool spilling down from the corner of her muzzle, and despite the stain it was leaving on the sheets, her expression was painted with the kind of relief that she didn't know existed only an hour before.

Her tail wasn't just sticking up straight anymore: it was curled around the lower back of her brother, who was finally pounding away at her haunches with all of the intensity that his mother wished he would give to her. Even as she watched from the doorway and nibbled on the back of her left paw, while the right continued playfully swirling around her clit, she felt a strange hint of jealousy of her daughter, wondering what Katya did to draw the beast out of her other child.

The next time I'm with him, he'd better fuck me like that, or I'm gonna leave a plug in his ass for a week, Vania kept her thoughts in the silent recesses of her mind, but her eyes were trained on her offspring with deadly intensity. She'd already gone past societal boundaries with her son, to the point that she was hardly worried about the pleasure that she garnered from watching her children fuck with such reckless abandon. No condom, no stopping...he's...he's not going to cum inside of her, is she?

Vania wasn't sure what her daughter's birth control habits were, but the risk clearly wasn't at the forefront of Katya's concerns. Instead, the dragoness was reaching behind her back to grab her brother's backside, hoping that she could keep him from pulling out too far; any moment that she couldn't feel his cock inside of her sex was a wasted moment, and she'd gone her entire life without it already.

Making up for lost time was turning out to be every bit the joy that Katya hoped it would be, and though she'd never experienced it before, she knew enough about the male anatomy to know what it meant when she felt her brother's cock throbbing and pulsing inside of her.

He's close...he's so fucking close! Katya's mind was racing with excitement as she dug her claws into the thin, smooth scales upon her brother's backside and tugged in on his body. "L-listen, bro...you can cum inside..."

Though he'd done little more than pant and moan with reckless pleasure throughout, Fenil sucked in a gasp of panic and tried to lock eyes with his sister, wondering what would prompt her to think of something so crazy. "Katya, if I do t-that...you'll get-

"Trust me," she muttered, knowing that she couldn't keep fighting back against the deep, powerful waves of ecstasy that started at her womanhood, and spread across her entire body. "It's a safe time, so j-just...just fucking fill me!"

The fear of impregnating his own sister was the only thing keeping Fenil from losing it in the minutes leading up to his climax, and once the order was given, his body couldn't fight it any longer. Feeling such a deep, ticklish sensation that it reminded him of the first round he had with his own mother, Fenil's entire body shivered from head to toe, and his paws went clumsy around his sister's hips as he leaned over her back and got comfortable.

The moment that he did, the flood gates opened, and his sack emptied itself inside of his own sibling. "Fu...f-fuck, that's hot!" Katya's expression was riddled with pleasure, but a hint of surprise took hold of her irises as she gazed back at her brother. She'd always imagined that feeling a load of semen inside of her would have been enjoyable, but she never imagined it would be so profound; she felt as though she was drowning from the inside, but rather than gasping for air in desperation, she only hoped that she would sink further and further down as she felt another heavy, full throb against her inner muscles, and a fresh burst of seed followed right after.

Her linens were going to be soaked by the time that Fenil was done, and the virile male couldn't sense any end to the flood as his sack continued to tense and tighten around his balls with each pump. His pace was uneven and inexperienced, but Katya was already flirting with the trembling of her second orgasm, and she was too busy enjoying the feeling of heated fluids pouring into her womb to worry about forcing out another quick release.

She preferred the pleasant, slow burn of cum oozing out of her spread, beaten sex, and as her paws released her brother and slumped forward effortlessly, he did the same, nearly collapsing on her lower back.

"You know...I heard you two fighting about something, but I don't know if I can approve of this method of conflict resolution."

Katya's inner muscles clamped down around her brother as her entire body seized up in panic, and though Fenil let out a gasp of delight, the sound was cut short as he felt a paw gripping at the base of his tail.

"Oh...o-oh my gods, Mom...l-listen, it...I mean, we-

"Don't bother," Vania cut her daughter off and glared down at her, shooting such sharp daggers with her eyes that even if Katya looked away, the older dragoness knew that her daughter could feel them. "I've been watching for a few minutes, now. Don't try to make up any excuses..."

Katya wasn't just a perfect copy of her mother in stature: she had the same fiery attitude, and she was quick to show it, as she bucked her hips at her brother, attempting to bounce him off of her back in the peak of the afterglow. "Why should I have to make an excuse for doing what you've already done a bunch of times?!"

Vania didn't expect such a strong outburst, but rather than meeting it with greater aggression, she grinned down at her daughter and rubbed an open palm along her own chin. "You've got me there, sweetheart. Really, I just wanted to know what you did to get Fenil to go all out on you, like that. At first, I figured that you seduced him into it, but then, I remembered how reluctant he was to give me the rough stuff...and he's still shaking like a little bitch. It's not that he's more into you," Vania explained, voicing her original concerns, "It's that he's more afraid of me than he is of you!"

In a household where strength was the most important quality someone could have, fear and respect were nearly synonymous, and Katya immediately clenched her fangs together in frustration as she cast a glare to her exhausted brother. "Fenil, is she...is she telling the truth?"

Paralyzed by his fear of both women, Fenil froze against his sister, feeling a chill every bit as deep of a blue as her underbelly. "W-well, I mean...she is our mom, so she kinda has you outranked, so to speak, and...I...uh."

Knowing that he was digging his own choice of two different graves, Fenil stopped himself short. He could feel warmth burning under the scales of his cheeks with such intensity that it was almost visible, and the giggle of his domineering mother only served to flatten his ears to the back of his head.

"Sounds like we're not gonna be able to get an honest answer out of your brother with mere questions," Vania observed. "Perhaps there's another way to get him to talk?"

Even though they were effectively in competition with each other, the mother and daughter showed their similarities, casting devious smirks at each other that could have easily been mirror images.

"I'm listening, Mom..."

**

Shower off, get into his bed, wait, and don't move a muscle. Those were the original orders given to Fenil, and naturally, being the smallest of the three, he followed them down to the word.

Even when he felt his mother's paws tying a blindfold around his head, he held still, and when his sister followed suit by placing his arms above his head and tying them together with a cutesy, little bow, he didn't bother trying to break free, though he had a feeling he'd be able to do that, if the worst came to pass.

After that, he was just resting in silence in the dark of his bedroom, with the curtains closing out any possible light. He was never given a chance to put any of his clothes back on, and though he was able to towel off quickly, he was still just about as messy as he was before.

Though Fenil was always proud of his sense of patience, the waiting was starting to grind on him. In trying to satisfy both his mother and his sister, it seemed that he drew the ire of both of his relations, and worst of all, he wasn't able to simply relax and enjoy the afterglow of such a satisfying romp; he was forced right into this situation with no real break, and what should have been a pleasant afternoon of swimming around in fading pleasure was quickly turning into a nervous panic.

They're gonna kill me, Fenil worried, allowing all of the ridiculous, fearful thoughts that he'd undone over the past few weeks to creep back into his mind. They're gonna come in here, break my legs and throw me out the window for double-dealing. I knew that was a bad idea...but Katya's just so fucking hot, and she wanted it! She was practically ordering me to do it!

In all of his sexual interactions so far, Fenil was the one being pushed around, and though the act of having sex alone was enough to boost his confidence, even when he was finally on top, it didn't mean that he was in control.

That wasn't going to change, as he heard the bedroom door close, and a series of footsteps crossed his room, right over to his bed.

"Don't even think about trying to get away." The voice was that of his mother, Vania, and he could feel her weight pressing on the side of the bed with a slow, graceful movement. "If my daughter really thinks that she can steal you away from me, she's got another thing coming...you're mommy's little man, right?"

Fenil was nervous to answer, even when he figured that it was just his own mother in the room. He could easily appease her with an answer, and still be able to sleep with Katya again when it was all said and done.

"Y-yes," he warbled out, his voice weak, and growing weaker as he felt the tight, delicious folds of his mother's sex backing up to his cock and grinding upon the shaft to wake it up. "I'm y-yours, mom..."

" Ha! I told you!"

The slow and practiced movements of Vania were no mistake. Moving in perfect time with her daughter, Vania slipped into the room with Katya undetected, and Fenil immediately gulped when he felt a far less practiced series of movements, of his sister crawling around the other side of the bed and coming to straddle over her own brother's muzzle.

"That wasn't fair! He didn't know I was here!" Katya argued, as she lowered the heated, moistened petals of her sex toward her brother's lips. "Now, Fenil...remember that scent? Remember how it flooded the room as you bent me over and fucked me like a wild animal? You've only ever done that for me, right?"

In the back of his mind, Fenil always dreamed that one day, he'd have a pair of beautiful women fighting over his affections.

He never would have guessed that they'd be his mother and sister, respectively, and he hoped that they wouldn't literally be fighting for him in the same room.

"T-that's right," his voice quaked once again as he answered, knowing that he'd never given his mother such a powerful, deep fucking. "You're the only one so f-..." he started to explain, but when he left the statement open for Vania to attack, Katya squatted down and spread her knees further, forcing her dripping, eager womanhood upon her brother's mouth.

Stuck in mid-sentence, the male dragon could only flicker his tongue forth and try to bury it inside of his sister in the vain hopes to distract her from the argument.

"Hmmph. Cutting him off so he can't tell mommy how much he needs her to remind him of what a real woman feels like?" Vania accused her own daughter, as she crawled further up along the bed. Tiny, glistening strands of her liquid desire drooped toward the sheets as her labia slipped away from the shaft of her son's cock, and as nervous as he might have been, his length stood stiff and ready for action as she moved right over his lap and held the base with a painfully tight grip. "That's fine. You can have his tongue...it's not up to my standards yet anyway, but this cock is ripe for the taking!"

Even after a few weeks of interludes, it was clear that Fenil wasn't quite able to pleasure Vania in the way that she required without some kind of penetration involved, but his spirits weren't able to drop. With the skillful hips of his mother rocking back and forth, teasing the very tip of his member with the prospect of entrance, he couldn't keep from moaning into his sister's folds, and she sucked in a tight gasp from that sensation alone...

...When her mother reached forth and grabbed her full, heavy tits, the gasp was released, and Katya flushed with shocked bashfulness at the touch. " M...Mom?! W-what the hell are you doing?"

"Helping you to get into the right mindset to force our little sex toy to bend to your whims," Vania explained. "You just hopped right on top without even forcing him to warm you up, and I know you're wet...but if he played with these first," she explained, giving Katya's breasts a playful squeeze, "You'd already be trembling with delight and begging for him to fuck you!"

"I thought you w-were trying to m-make him into a man," Katya argued, as she tried to have a conversation with her mother in the midst of something so lewd. The feel of soft, open palms rubbing over her nipples, and the deep, desperate wiggling of her brother's tongue against her sex left her aching for something more, but she knew her place, as the daughter; she'd have to wait her turn, if she were so lucky to even get one. "If you're j-just gonna push him around..."

Vania grinned and slammed her hips back, engulfing her son's impressive cock in one quick, heavy drop. Katya could feel her cheeks burning once again at the thought of being in the same room as her mother during such an act, but Vania wasn't bothered in the least, and even seemed to be garnering more pleasure out of the moment with her daughter acting as a student.

"Putting the needs of your lover before your own, and doing whatever she requests of you so that she can feel pleasure?" Vania asked. Her rump wiggled from side to side, forcing her inner walls to clench one way before moving back the other, leaving Fenil panting with a different kind of pleasure. There was something to be said for standing over a female and pounding into her, but little could compare to the sensation of an experienced woman sitting atop of your cock and squeezing it in so many different ways that it would actually leave your mind blank. "There's nothing manlier than putting the needs of your woman first, Katya...and I'm going to drive that lesson into his precious little head, one way or another."

In their family, strength meant a lot of different things, but Katya had to rethink her entire understanding of the subject, after hearing that. Her thoughts turned to what it truly meant to be strong as a draconic male, but quickly turned back to her brother, as the swallowing of his manhood forced a shrill cry from his maw, and the loud vibrations cast across Katya's folds, sending a pleasant, subtle jolt of delight toward the nub of her clit.

Fresh trails of her feminine juices poured over Fenil's lips and drizzled over his cheeks, making a terrible mess out of the small, submissive male, and giving Katya a twisted idea. She tried to voice it to her mother, but struggled every step of the way, as her brother slurped all of the juices that he could reach from the birth of her sex, groaning into her folds with delight all the while. "F-fuck...can I...nnngodyes, Fenil... can I t-teach him, Mom?"

Beaming with pride at her daughter, Vania gave a quick nod as her hips began to bounce with rapid fervor. "Of course you can, my dear...but not until I teach you, first."

Clenching a pair of digits around each nipple and squeezing delicately, Vania pulled her daughter a little closer and sealed her lips against the stunned dragoness. It was all too much for Katya to process, and thought social norms told her that she couldn't possibly kiss her mother in such a way...instinct disagreed, and won the debate with flying colors.

If you keep that up, you'll make me cum, Mom, Vania felt the thoughts dripping over her mind like the juices of her sex, oozing out over Fenil's muzzle. And it'll be my first lesson to him...to always clean up after his lover's messes.