Rin stared at his brother as rain poured around them. The man's eyes were as cold as steel as she examined his younger brother, his expression looking like he barely even recognized him. Somehow, it boiled Rin's blood even more than he already did on his own.

"You aren't leaving," Rin said, having to yell to be heard over the rain as he raised his knives. He was very aware of the injury to his leg, one he hadn't been able to get properly healed yet. It wasn't hurting now, but the wound could be easily reopened, and he couldn't let his brother know it was there. "Not without facing me."

"You should already know how this will end," Shiki replied coldly, keeping his voice quiet enough that Rin almost couldn't hear him. The boy gripped his knives tighter as Shiki pointed his long blade at him.

"No, I don't," Rin replied honestly, "but I don't give a damn at this point."

Shiki's eyes narrowed, and then, in a flash, he was in front of Rin. Rin raised the knives just in time to block the downward swing of the sword clashing against his blades, the vibrations singing along Rin's arms, yet he held firm. Shiki simply stared at him as he leapt back, then lunged, stabbing towards his stomach. Rin sidestepped it and swung as fast and hard as he could at Shiki's neck, but of course, the man was fast and ducked, swinging his sword back towards Rin. Rin leapt backward, but the tip of the blade left a thin red line across his stomach that made him wince. He barely paid attention to it, however, as when he landed, his leg erupted in pain, and he became unsteady on his feet. He recovered after only a second, but it was long enough for Shiki to advance and nearly skewer him.

When Rin looked into his eyes, he saw Shiki's expression.

He'd noticed.

A ghost of a smile appeared on his lips as he swung horizontally, forcing Shiki to leap far away to avoid getting cut in half, once again putting pressure on his leg. He bit his lip hard enough to make it bleed as the pain was even stronger than last time. He had to end this as quickly as possible, before it got worse.

While Shiki was swinging back, Rin moved as fast as he could and swung his knives. Shiki leaned back, so they grazed his chest, leaving two red lines across his skin. His expression didn't change as he spun around, releasing one of his hands from his sword and grabbing Rin's wrist. He twisted it until Rin dropped his knife, then lifted his foot and rammed it into Rin's leg. Pain erupted so harshly that it momentarily blinded the boy as Shiki, with the ease of throwing a stuffed doll, tossed Rin away, where he landed on the ground with a groan, clutching his leg.

"Fuck…!" Rin cursed as he tried to get up, but when he did, he felt new pain erupt across his chest as Shiki cut him, this time much deeper than before. Crimson liquid dripped down his front, even as it was washed away by the rain, and before Rin knew what was happening, something rammed his chin, and he saw stars as he fell onto his back, now staring up at the sky. He groaned as he tried to get back up, but Shiki slammed a foot down on his chest, pinning him. Rin reached for his knives, but they were now out of reach as his brother sneered down at him.

"Pathetic."

Shiki pushed down harder, forcing air out of the boy's lungs as he grabbed his ankle, trying uselessly to force the foot off of him. At seeing his failing attempts, Shiki dropped his other foot into his stomach. His body lurched as spittle flung from his mouth, but before he could even register that, there was a new pain in his leg. Rin looked down to see Shiki digging the tip of his sword into the spot just above his knee, twisting the blade back and forth to dig the tip into his skin. White hot agony burst through him as she tried his hardest to hold in a scream or cry of pain. Rin tried to reach for the blade, or tried to punch between his brother's legs, anything to get him to stop, but he felt powerless, unable to reach.

He continued digging the blade in further and further, every twist sending new bolts of agony through Rin's body. The younger boy was almost sure he was going to pierce all the way through, but then, suddenly it stopped, and he yanked the blade out, splattering blood across the ground. The intense pain dulled only slightly as he watched Shiki staring at him, his expression as unreadable as ever.

Then, without warning, he flicked his blade so fast Rin could barely see it, and the boy's shirt was sliced open, revealing his toned stomach and chest, as well as the cuts Shiki had already delivered. The pain in his continued to grow more dull, the rain washing the blood away, though it was still intense enough that he was struggling to breathe. Shiki had moved his leg to cut open his shirt, but once he had done so, he immediately planted his foot back down, this time digging it into his wound and making Rin grunt in pain.

But he still wasn't satisfied, it seemed.

He brought the tip of the sword to Rin's pants, his belt loose from so much movement. He pushed the tip against his button, and just as Rin was beginning to question what he was doing, he flicked his wrist and the front section of his pants was cut away, revealing a pair of black boxers underneath. Rin's face flushed as confusion swirled through him alongside the pain, and he looked up at Rin, who was staring at the spot with an intensity that the boy couldn't recall seeing before.

"Hm," was all Shiki let out before he knelt, removing his foot from Rin's chest at last, but holding his sword up to the boy's neck to keep him in place. Every slight movement made his leg burst out in renewed pain, but he grit his teeth as best he could while trying to see what his brother was doing.

To his utter shock and horror, Shiki placed his hand over his groin, found the outline of his penis, and squeezed it.

"Ah-!" the boy groaned as Shiki messed with his currently flaccid member, stroking and playing with it through his boxers. Rin tried kicking his legs to get him to stop, but that just made Shiki press the sword tighter against his throat, causing a tiny flow of red to drip from a thin line.

When Shiki clearly wasn't satisfied enough by that, he reached up and grabbed the waistband of his underwear. "D-Don't…!" Rin tried to cry, but of course, Shiki wasn't listening, and he yanked it down to his knees, exposing his cock, where it began to get pelted by the cold rain. Rin, confused and scared by what his brother was possibly planning to do, he looked up, only to see him lick his lips, sending a chill through his body that went deeper than the rain.

Then, finally, Shiki grabbed it. He wrapped his long, slender fingers around Rin's cock and squeezed it, causing Rin to let out a tiny moan of pleasure as his cock stiffened slightly, an action wholly decided by his body rather than anything else. His cheeks flushed.

"Wh-What do you want?!" he screamed, but Shiki didn't answer at first. He simply began running his fingers up and down his shaft, sliding his fingertips along his wet skin, tracing the veins as Rin trembled, growing more and more aroused as his cock stiffened further.

"You."

The reply was so quiet that Rin almost didn't hear it. When he did, however, he froze, eyes widening as his confusion and concern only grew deeper. He couldn't have much time to dwell on it, however, before Shiki wrapped his entire hand around the boy's member and started jerking him off. Moans once again erupted from Rin's lips, much louder this time as he couldn't stop himself from thrashing. Shiki had lessened his sword only slightly, so that Rin wouldn't slice open his own throat, but he still kept it in a way to keep him from escaping.

Soon, Rin was fully erect, sporting a cock far large for his age, and Shiki's hand was sliding effortlessly across the shaft, pumping it up and down, helped by the rain. Shiki's breathing had become noticeably more ragged as there was a slight bit of pink in his cheeks. He dared a glance at Rin's face, and his mouth twitched as he saw the way his brother was moaning, the way his face was scrunched up in unwanted arousal.

So Shiki took it a step further.

With his height, he was able to keep the tip of the blade against Rin's neck as he lowered himself between his brother's legs. Rin's eyes widened as Shiki gripped his penis with his free hand, and then to Rin's complete horror, opened his mouth and placed it around his cock.

"Shi—AHH~!" Rin moaned as Shiki's tongue suddenly swirled around his head, inviting deep hot pleasure to rock through his body as a spark lit inside his pelvis, taking the air from his lungs. He knew it would be useless to try and get him away, especially with the blade still at his neck. One flick of his wrist and Shiki could still easily kill Rin. Even if he did get out of this position, his leg was still injured; he wouldn't get far. He was at the man's complete whim, and Shiki knew it.

So why was he doing this with it?!

Shiki's eyes closed as he sucked off his brother, slowly moving down further and further as his tongue flicked against the slit in his head before moving down and wrapping around his shaft, the boy's veins pulsing under his tongue.

"Ahhhh~!" Rin's feminine moans couldn't be drowned out by the rain as Shiki continued sucking, eventually taking the boy's entire member inside his mouth. It almost seemed easy for him, as he didn't gag once, much to Rin's shock and disgust. Yet despite how disgusted he may have been, he could do nothing but endure, even as his body was screaming for more, screaming that it liked it. His toes curled as he moaned into the air, unable to speak or barely even think as the pressure built further inside him. He knew what it was, but would resist it for as long as he could, not wanting to give Shiki the satisfaction.

It became difficult as Shiki even began stroking his balls as well. He reached almost down to his taint and stroked a single finger all the way up to the base of his cock, and that single stroke sent shudders through Rin's body so intense that he almost came then and there. His tongue slid across every inch of skin it could find as he stroked and fondled his balls, making Rin more and more aroused with every touch as he couldn't hold out much longer.

In the most humiliating moment of his entire life, Rin finally came, spilling his seed with a loud moan into Shiki's mouth and down his throat. Shiki stopped in place as he swallowed every last drop, much to Rin's disgust, before he pulled away, watching as Rin collapsed to the ground, panting and fighting to catch his breath. As much as he'd hated the entire experience, he couldn't help but admit to himself that something about it had felt…exciting. Perhaps it had been the horrific taboo nature of it but some part of Rin had enjoyed it now that it was over.

And part of him wanted more.

Unfortunately, or fortunately, he wasn't sure which, Shiki didn't seem to be done. While the boy had been lost in his thoughts, Shiki had dropped his jeans and underwear to his ankles, his cock standing at full mast and looming over Rin. It was shockingly large, though Rin supposed it fit his tall frame. Even so, it was intimidating.

But before he could do anything else or even think of moving, Shiki flipped him over onto his back. Any movement caused the pain he'd been able to ignore thanks to his arousal to sudden flare, and Rin cried out in pain, reaching for his leg as Shiki gripped what remained of his pants and tore them away along with his boxers. His tiny tight butt was left exposed now as Shiki forced Rin up to his knees by grabbing his head by his hair and getting him to move. Once he was up, the sword once again pressed against his throat.

Then, he felt a sharp pain on his ass.

Rin's eyes widened as Shiki spanked him as hard as he possibly could, which happened to be extremely hard. He grunted as pain tinged with surprising arousal flashed through him, making his once again soft dick stir. He barely had time to breathe before another one came, followed by another. Shiki struck his ass with an intensity that Rin hadn't experienced before, every subsequent slap stinging more than before as he hit the same places over and over, to the point that Rin was sure it was turning red.

But Shiki simply kept going, until Rin was nearly screaming in pain. Yet alongside that pain was an intense pleasure that built inside him, stirring his cock back to half-mast without even trying. His horror had returned, of course, but now part of him couldn't deny he was enjoying this, and he wanted more. He didn't know if it was the spanking specifically, or once again the taboo nature of it all, but it felt so good that he didn't care.

After minutes of spanking, Rin was in so much pain that he felt like every movement hurt, and he was sure if he tried to sit down, he would feel nothing but agony. Even so, Shiki wasn't done with him. The man grabbed one of his ass cheeks with his entire hand, making Rin wince in pain as he spread it open and pressed his cock against the boy's hole.

"H-Huh? Wait-!" Rin tried to say, but Shiki ignored him and pushed himself inside. Without any proper preparation, it was incredibly tight, and Rin screamed, slightly muffled by the still pouring rain as Shiki took a deep, shaky breath. He pushed himself in nearly two inches before he started thrusting. He kept his hand on Rin's red ass cheek, squeezing it in such a way to make it hurt as much as possible as Rin made noises that sounded somewhere between choking and moaning.

Shiki's thrusts started off slow to get them both accustomed, but he quickly began to speed up as Rin's hole widened, pushing himself in deeper as Shiki let out another shaky breath. It felt so good, the tight walls around his cock sufficiently helping him towards completion as he felt the swirling pleasure inside himself growing with every passing second. He wanted to go deeper, as deep as he could, but he knew he wouldn't be able to go very far, and definitely not as much as he wanted; Rin's body would rebel too much to make it worth it.

Still, he continued pushing in little by little to get to the most pleasurable point he could. It took a little effort but he eventually reached a spot he felt was best, and really began to amp up his efforts, squeezing his brother's skinny ass tightly under his long fingers. Rin's cries of pain morphed more and more into pure moans arousal as he tilted his head back and cried out into the rain. The pressure inside Shiki's pelvis was growing as he was now practically slamming his cock in and out of Rin's hold. He reached his hand back and struck his ass once more, and the boy's entire body lurched as another moan escaped his lips. Shiki couldn't help but smile as he did it again and again.

Every strike increased the pleasure for both of them as Rin's stiff cock wobbled and twitched. Shiki shifted himself slightly to strike Rin's hole in just a way to stimulate him as much as possible. Although in reality he didn't care if it felt really good for Rin or not, he just wanted the humiliation that came with making the boy cum from his brother's touch twice. It was delicious.

He kept going, moving his hips as fast as they would go, and Rin actually finished before he did, his body arching as he trembled. Spurts of cum shot from his cock and splashed onto the ground where it was then washed away by the rain a few seconds later. Even then, Shiki wasn't quite done, though he was getting close.

He continued to thrust, slowing down but not once letting up his intensity, and after a few more times smacking his hips into Rin's, he climaxed. His cum erupted out and filled his brother's hole in an instant as he trembled with relief, letting out a long, drawn out sigh as he emptied everything he had. It felt like an entire minute passed before he finished and finally pulled out, allowing Rin to collapse to the ground, panting as the rain continued to fall on them. Shiki stumbled but regained his footing almost immediately as he stared down at Rin. The boy was shifting, as if trying to get up, but he didn't seem as keen to fight or run away anymore.

What he didn't know was how Rin wanted more. How that had somehow been the most pleasant sexual experience he'd had in his life, and he wanted more. He was stunned that he wanted to see his brother naked, suck him off, just to see how he'd react, see his face when he got aroused the same way. He wanted…this.

But Shiki wasn't ready to accept that.

He lifted his sword and plunged it clean through Rin's leg.

His scream soon ripped through the air like that of a banshee as he collapsed again, his body bending as he reached for his leg. Before he could do anything at all, Shiki pulled at the blade, ripping through muscle and skin as the gash in his leg became wide and bloody, even though much of it was washed away from the droplets from the sky.

Rin's scream continued as Shiki kept yanking and sawing through skin for several more inches before releasing the blade, twisting his wrist to swing through the air and slice off one of his brother's hands, watching as the now useless appendage landed on the ground with a splash. The water turned red as Rin continued to scream.

Shiki furrowed his brow. He didn't care about his brother. He never would. He'd prove it to everyone, including himself, right here, right now. Anything he'd felt during this experience had been emotions heightened by arousal, and nothing more.

Rin curled up and tried to scoot away, but Shiki flicked his wrist again and sliced the boy's cheek open, blood now pooling onto the ground and into his mouth, given the way he was choking now.

Shiki brought his foot back and kicked Rin in the stomach, which only made him curl up further, so the older man reached down grabbed his brother by the arm, lifting it up and slamming the tip of his sword into his skin, tearing through flesh and muscle as the sword went clean through him. Rin's screams of agony made him shudder, though he wasn't sure what emotion was accompanying it.

Due to blood loss, Shiki knew the boy wouldn't last much longer, so for his final act he ripped the blade out and plunged it into his brother's stomach. The scream turned into a different sort of choking sound as his body thrashed, his face paling as he collapsed. Shiki dug the blade all the way through, striking the concrete underneath. He watched as Rin continued to twitch and thrash as his breaths became slower and slower. His cries of pain became quieter with every passing second, until any noise he made was drowned out by the rain.

And finally, he went still, his blood still flowing into the water as it washed everything away.

Shiki stared down at the lifeless body of his brother for a very long time, feeling the rain continuing to splatter his body, leaving him cold down to his bones.

After several minutes, he sheathed his blade and knelt, his head bowed low.

Shiki had always felt lost and alone in the world. He'd always felt aimless, wandering around doing whatever he pleased. Sometimes it was fun, but most the time felt meaningless.

But Rin…he was always the oddity.

When he was around, something felt…right. Shiki had interpreted it as their fighting giving him purpose, as it felt like it was all they'd ever done. Rin was a worthy opponent, after all, even if Shiki never would've admitted it.

And yet when they'd shared an intimate moment, this moment, it had felt…almost right. Like something missing had been returned. When Shiki had been inside him, he had felt complete and whole.

But now…as he stared at the lifeless body of his brother, the one he'd killed to prove to himself something he'd been denying…

All he felt…

Was empty.