Femui and Marx teasing

“Kamui? What are you doing here? It's late.”

Marx turned around, his broad sword dangling from one hand. The prince's cheeks were flushed from the exertion, and a light sheen of sweat dampened his face. His circlet had been set carelessly aside on a nearby, and it glittered faintly in the candlelight.

Kamui was wearing only a gauzy robe that billowed and flowed with the breeze from the open windows. A gust of cool, night air blew the thin garment against her body, and the prince turned away with a flush coloring his cheeks.

“K-Kamui! It's the middle of the night, and you aren't properly dressed. What are you thinking? You're going to catch a cold, or...” His voice trails off, and his strong hands tighten around the base of his sword.

Kamui let out a light laugh, and pulled the thin robe tighter around herself. “I was sleeping upstairs when I heard a familiar sound. I was dreaming of my childhood when I woke up.” She laughed again, fingering a lock of her silver hair. “Marx-niisan, we haven't trained together in a while, and the sound... it made me think of you. I was too restless to stay in my bedroom. If you don't mind, can I at least watch you?”

The prince gave a heavy sigh. His eyes darted evasively around the room, and he seemed unfocused.

Kamui's dark eyes followed his, and her soft lips opened as she gives him a concerned stare. “Nii-san? Is everything alright? Last time you were like this it was because father-”

Marx took a step towards her, his mouth opening and then closing again. “Why do you insist on talking like this? We are not related by blood, and yet... Why do you insist on calling me brother?” His grip on his sword loosened, and it clatters onto the table. The tall man leaned against it, one arm holding himself up, and the other covering his face. “Why...?”

Modesty either forgotten or craftily disregarded, Kamui rushed to his side. Her sheer robe fell open, revealing the swell of her pale breasts and a sliver of her stomach, but she didn't seem to notice or care. “Marx-oniisan! What's the matter? Are you alright?”

The prince recoiled at her touch, his lust for his younger sister and arousal boiling into disgust in the pit of his stomach. And yet he didn't want her to stop. His anger and frustration had hit their limit, and the desire burning within him had started to overwhelm his tightly moral mind. The prince shook his head, squeezing his eyes shut in the hopes that when he reopened them, the half-naked body of his little sister wouldn't be pressed against him. There was no such luck, and he had no choice but to clear his throat and carry on.

“I...I am troubled by many things. The war with Hoshido, and...and...our troops.” He managed to stammer out lamely. Fortunately for the tall prince, Kamui seemed to accept that answer without question. “Ah, I see. This is why you were training. It helps you to think, and release pent up energy.”

The silver-haired girl's hands wrapped around Marx's wide chest as she hugged him from behind. “I understand. I too am the same. Perhaps that is why I couldn't sleep tonight.” It took all of the blonde prince's willpower not to stiffen in her grasp. If he could only be normal, as a big brother should, then it would be over soon.

Kamui would return to her bedroom, and he could spend the night working off his pent up energy, but not in the way his younger sister was thinking of. Gods, recently Kamui had been... He stifled the urge to shake his head and clear the thought from his mind. It was almost as if she knew what she was doing. What kind of effect she had on him. Now, with her arms drifting dangerously low, there's nothing he could do but stay frozen, his heart pounding in his chest. What kind of ruler is like this? Is this father's disgusting heritage? Was this Marx's destiny, or had he made some sort of mistake? Did he cherish his sister too much, so that love turned to perversion? This time the broad-chested prince couldn't stop the shiver that ran down his back.

Kamui's arms were wrapped around his waist, and her head lay against his back now. One wrong move, and her hands would brush against his straining, erect cock. “Mmm... Marx-oniisan, why don't you finish up and let your pent energy out quickly. I'm tired.” Marx gritted his teeth. What on earth was he supposed to do? After a few moments of silence, he shifted in her grip.

“I have done enough for tonight. I'm fine...now.” Lying to his little sister, another strike. But the truth was that he couldn't think of anything but grabbing her and slamming her face down into the table in front of him. He could practically hear the muffled sound she'd make, the way her voice would jump in pitch as he pulled up the back of her skirt. It would be loud, but he wouldn't care. The slamming of the table against the wall, her cries of pleasure-

“Nii-san!” The tall prince blinked rapidly, his face turning a pale pink. “K-Kamui? What is it?” Kamui's hands slipped even lower, one sliding over the fabric beneath his scabbard. It was all he could do not to grab her slender wrist and hold it there. “What are you doing?”

His sister's hands wrapped around the base of his sword, and her voice took on a playful tone much unlike her previous sleepy voice. “I said, if you won't do it, I will.” She slid the broad sword between Marx's arm and his side and brandished it triumphantly in front of her. “Ah, it so big and heavy. Is this why you never let me use it?”

The taller man turned suddenly, trying to clear the fog from his mind. “Kamui, what's gotten into you? Put that back. It's heavy, and dangerous.” The smile that crossed her mind was devilish, teasing, Marx was sure of it. “Nii-san, if you want it, you're going to have to come and get it. With one hand holding the front of her gauzy robe closed, Kamui darted across the room to the doorway.

Marx gritted his teeth. There wasn't any way this was going to end well, and yet he couldn't bring himself to care. At this hour everyone was in their bedchambers. There was no one to see or hear. It was she wanted this, showing up in that outfit in the middle of the night. What was she thinking? Gods, what was he thinking? The tall prince knew that the right thing to to do would be to bid his sister a good night, but even as he strode towards the doorway, he knew it was the last thing that was going to happen.

His hands were rough now, and he pulled his sister against his body, not caring if she felt the throbbing heat of his length against her. “Ngh, Kamui! Return that immediately! What are you thinking acting so carelessly with a weapon!” His voice was strong, but his body, and mind were not. The blonde prince's strong hands forced the weapon from Kamui's fingers, where it fell to the ground with a clatter.

He was on Kamui in a second, pinning her to the stone wall. It took him only seconds to lift the thin fabric of her robe, and even less time to thrust inside of her. His mind was screaming at him to stop, or at least not in the hallway where any errant servant or Gods forbid, sleepless brother or sister could walk by, but there was nothing he could do now, buried deep inside of Kamui. He had fantasized about this moment for years, more than he'd like to admit even to himself.

There had been sleepless knights where he pleasured himself over and over, calling out her name as loud as he dared in the castle, and then cursed himself for his perversion. He couldn't hold back any longer. Even just the sight of her in that gauzy robe had been enough to push him to the edge, and now there was no stopping the prince. His hands were on her hips at first, pulling her body into him to slam his length into her.

Kamui's body was so limp that it seemed the only thing supporting her was Marx's huge hands. He felt almost as if he she was some sort of toy he was using, to relieve years of pent up lust and swirling emotions, but then her hands rose to the wall and she braced herself against it. “Ah, Marx-neesan...” He didn't want to hear it. Moving his hands to the wall, he began to slam his hips into her. It was so good. There was no way that he was going to be able to keep silent. The inside of his sister was hot and tight, like it was engulfing his length. Even though he was forcing himself on her, it still felt this good. A wave of bitter shame washed over Marx, and he let out a moan as he rammed his girth into Kamui again.

“K-Kamui! It's so good inside of you. I'm sorry Kamui, I just can't stop...” At this point the oldest prince's lust overpowered his shame. There was no turning back. His true desire had been realized, even if it made his worse than father, even if he was no longer heir to the crown. For this one moment, his desire was realized. The prince dreaded it ending, even as his orgasm was inevitably rising inside of him.

“Kamui, this is the true face of your disgusting older brother. At least like this, you don't have to look at me.” Kamui's hips shifted, whether by accident or by design, and her ass pressed against Marx's hips, hilting his cock deep inside of her. The sudden shift drew a deep gasp from Marx. “I can't hold back any more...” His arousal was boiling inside of him, when he heard his little sister's voice.

“Ah, Marx-neesan, it feels so good!” The color blanched from his face, and he had to stop his legs from shaking. What was happening? “Nee-san, don't stop! I want to see your face while you're inside of me!” She was mocking him, teasing him. This couldn't be real. That mocking, teasing tone of voice wasn't right. To think that she could enjoy this was simply not possible. He was only indulging his own perversions. And yet... it was incredibly arousing. To hear his little sister calling out things that he had only dreamed of. Even if she hated him, even if she was only mocking him, it didn't matter.

The blonde prince lifted Kamui up and carried her to the table. He laid her down, and was inside her again immediately. He couldn't stop himself. Even if he couldn't meet her eyes, his lust was too strong. Marx settled his hands on Kamui's waist, slamming her onto his cock with every thrust. Now that he was able to see her face, he wasn't sure how much longer he could last. Her mouth was slightly open, and soft moans fell from between her lips with every movement.

“It's so good, nii-san!” Marx was so close, his teeth clenching as he slammed cock into Kamui. His head was buzzing, the mixture of overwhelming arousal and the tip of his orgasm mixing with the sudden realization of what he's done. Two long legs wrap around his back, and he finds himself slammed into Kamui, thrown forward and off-balance. His length is hilted deep inside of her, and his knuckles are white on the table, the veins standing out in his arms.

Kamui's legs are locked around him, and she breathes out: “Cum inside of me, nee-san! Marx's orgasm hits him at the last moment, and he's unable to do anything but let out a strangled moan, his body mixing shock with the ultimate pleasure. All he can do as his seed fills his little sister is watch, still thrusting weakly into her as she rides out her own orgasm with evident pleasure.