Chapter 3: Black & Red

"Ten rings says you don't make that shot"
"Make it 20."
"Deal."

Knuckles and Shadow had been playing pool in Shadow's basement for the past hour. The two had gotten together for a game among friends to blow off steam and relax after a long week. The eight ball sank into the corner pocket and Shadow grinned. "Pay up Knuckles." The red echidna grumbled as he handed over the money. "Play again?" Shadow asked. 
"Sure," Knuckles replied, getting the balls back out of the pockets. Not really watching where he was setting them, one of the balls slipped off the edge of the table and hit the floor. It rolled across the room and under the large sofa against the far wall. 
"Klutz," Shadow muttered under his breath. "Don't worry Red, I got it." Shadow walked over to the sofa and got down on his hands and knees reaching around for the loose ball. Knuckles, having finished getting the others onto the table, walked over to Shadow and waited. As Shadow reached around in the dark space between the sofa, ground, and wall, his butt wiggled up in the air. Knuckles chuckled, watching the dark hedgehog fumble around for the ball. He could just have moved the sofa for him, but decided to enjoy watching his friend struggle. As he stood by, Knuckles couldn't help but notice the ongoing wiggle of Shadow's back side. Before he realized it, he was staring directly at it for an extended time. 
"Damn," he thought to himself, "He's actually got a nice...whoa, whoa, whoa..." he caught himself before finishing the thought. "What was that just now? I was almost checking him out." Knuckles turned around and closed his eyes trying to forget about it. 
"Ugh, I swear...this couch is a black hole sometimes," Shadow grunted, still not finding the ball. Knuckles clenched his teeth, and slowly turned back unable to shake the image from his mind. Again he glanced down at Shadow's black ass, but this time he let his thoughts wander. Knuckles didn't want to admit to himself how pent up he was. It had been over a week since his last release and he was a bit backed up. "Man, why does he have to have such a great looking ass. If only he had a pussy, I would have jumped him years ago...but it still looks so inviting. It's like he's egging me on to just mount it." 
Little did Knuckles know, that was exactly what Shadow had in mind. He too was pent up, but for much longer. He had originally hoped to get together with Rogue, but they had a falling out a few days prior. It turned out that she and Amy had gotten together behind his back, so he was desperate for some action. Any kind of action at this point, even if it was from a guy. He had always suspected Knuckles was gay, or at least bi, so he invited him over to see if the night would go anywhere. Up until the fallen pool ball though, there hadn't been a good opportunity to try and seduce the echidna.  He had found the ball almost immediately, but decided to have a little fun while he was on the floor. Waving his behind in the air he wondered if Knuckles was even looking. By the time he made the black hole comment, he realized he was being watched and decided to increase the wiggling and start puckering his tailhole. 
Knuckles continued to stare at Shadow, lost in his thoughts. "I wonder if I could touch him without being discovered. Damn why am I so into him right now. Huh? Wait, is his tailhole winking at me? Does he know I'm looking?" Knuckles glanced below Shadow's hole and noticed the black hedgehog's dick was starting to grow out of his thick pubic fur. "Oh shit he's getting hard! He...should I..." Knuckles reached out his hand and carefully approached Shadow. "Just one feel," He thought, removing his right glove. "I have to know what he feels like." Knuckles didn't yet realize it, but he too was starting to get hard. The tip of his dick (unlike non-mobian echidnas, was a fleshy elongated umbrella shape. The edges of the head had eight nubs on it which flared out when he was aroused and at full mast. An impressive seven inches. His member was normally hidden inside a slit, keeping it hidden from prying eyes, and his fur covered the slit making it invisible from view. Shadow on the other hand was the most unique of all of the Mobians. Because he was engineered in a lab his package was modified for maximum pleasure for both he and his partners. His balls were internal, hiding them from prying eyes. Like Knuckles he had a slit, but it was usually well hidden under his thick pubic fur. His dickwas the most remarkable part of his anatomy though. It was modeled after other Mobian hedgehogs in length (about 8 inches) and in general shape, but had a few other features. It was notably thick by comparison to a hedgehog like Sonic. It similarly was tapered from a very thick base to a point on top. Rather than having a short fur up the length of the shaft, it was entirely a fleshy deep red color from base to tip. Every half centimeter there were spines which were equally as hard as his erection.
Knuckles took a deep breath and placed his hand on Shadow. Shadow's eyes lit up and he smiled realizing his plan worked. He didn't say anything, just kept up the pantomime of looking for the ball. Knuckles was surprised at Shadow's lack of reaction so he took his other glove off and added his other hand. He gently squeezed Shadow's ass feeling its firmness. 
"About time," Shadow said, causing Knuckles to recoil.
"Uh, sorry I was just...wait what did you say?"
Shadow chuckled, "Been waving my ass at you for 5 minutes, I thought you were too dense to take the hint."
Knuckles grumbled, "You perv."
"Says the guy who grabbed my ass. Now come on, get back to it."
Knuckles sighed then bent down more forcefully grabbing Shadow. His inner thoughts started racing again. "Damn look at the mess I'm in now. It wasn’t supposed to go this far. Still, this is actually turning me on." As Knuckles rubbed, he glanced down at Shadow's now fully erect cock. He had never seen it before, and needless to say he was curious about its unusual features. Figuring that after Shadow's comment that he would be up for anything, Knuckles reached under Shadow with his left hand and grasped the black hedgehog's member tightly.
"Yeah, that's it Red," Shadow said. "Go to town."
Knuckles grumbled again at Shadow's attitude, "Fine, you want this so bad, I'll give you all I got," he shouted. Knuckles gave into his growing lust and buried his muzzle into Shadow's ass. The red echidna licked his tailhole and plunged his tongue past it as well. As he did so he began pumping Shadow's shaft. The black hedgehog's breath began to increase as he was pleasured from both sides. Knuckles, while frustrated, couldn't help but get into it a lot more than he thought he would. His own dick was now rock hard and starting to drip. He didn't want to admit it, but he really needed this, and very quickly the awkwardness of giving Shadow a rimjob and handjob at the same time had vanished. He was no longer thinking about what if Shadow had a pussy, and resigned himself to just pleasing his friend. As their members throbbed, Knuckles pulled his head back and looked down at his progress. Shadow's tailhole was much looser now and was wet enough to accommodate something larger. Letting go of the black hedgehog's shaft, Knuckles got on his knees and positioned himself at Shadow's entrance. "Get ready, you perv."
Shadow closed his eyes and bit his lip. 
"Fuck yeah, do me!"
Knuckles pushed his entire length in at once. His ribbed echidna tip rolled through Shadow's insides sending intense pleasures to both of them. Knuckles could hardly believe it. He was fully inside Shadow's tailhole. He never really thought of doing it with another guy before, let alone Shadow, but it felt so good that he didn't care. Shadow's hole was the hottest and tightest out of anyone he ever had. Somehow it was even better than a pussy. He started thrusting in and out almost instantly.
Shadow said nothing after Knuckles penetrated him. His partner's flair felt so good as it passed back and forth on his prostate. "Forget Rogue," he thought to himself, "I will just get plowed by this guy everyday if he keeps this up." Knuckles picked up his pace. thrusting harder and faster against Shadow. Neither wanted to let out a moan, but they frequently grunted in between their heavy breathing.  
"Damn this feels good," Knuckles thought. "I might get addicted to this if I'm not careful. Damn why does he feel so good?"
Shadow, enjoying getting his ass destroyed by the red echidna, reached down and began stroking himself. The sensation caused him to tighten his tailhole, squeezing Knuckles. The echidna let out a long groan as all 7 inches were squeezed, causing him to let out a burst of precum into Shadow. The black hedgehog gasped feeling the thin stream hit inside of himself. This only excited him more, causing him to increase the speed of his strokes. He could feel himself getting close, so he finally turned back to face Knuckles. His face was flush and covered in dust, "Keep it up Red, I'm almost there."
"Shut up," Knuckles grumbled. "I'm gonna pump you until you burst."
Shadow chuckled, then turned back around as he reached climax. "Oh fuck yeah," he shouted releasing onto the floor and clenching his tailhole. Knuckles finally let out a deep and guttural moan as his dick was squeezed tight by Shadow's hole. It was so tight that he could no longer move it, but by the time Shadow was on his third spurt of come, Knuckles was ready to pop. He threw back his head and clenched his hands tightly on Shadow's hips. Letting out his pent up lust, the red echidna shot out like a faucet. Just as he said he would, Knuckles pumped Shadow's tailhole to capacity. Shadow's eyes widened as by the time he let out his last spurt, Knuckles had begun unloading in him. 4...5...6...every shot was just as large as the last. 7...8...9...10! Shadow couldn't believe Knuckles was still coming. It just didn't stop. "Holy fuck, Knuckles!"
Knuckles groaned in pleasure, satisfied to have put Shadow in his place "Yeah take it all, you perv." Another 2 smaller squirts and Knuckles was finished. He pulled out of the black hedgehog's tailhole, and fell backward sitting on his ankles. Shadow rolled to one side falling onto his back. Cum was intermittently leaking from his hole. The two panted eyes closed for a few minutes. "Damn. I needed that," Knuckles said slowly, opening his eyes, and looking down at his shrinking penis.
"Not as much as I did," Shadow replied, sharing the sentiment. "Why didn't we try this sooner... I mean...wait, that came out wrong."
"Knuckles threw back his head and laughed. "Geez Shadow, I never would have guessed you were gay!"
"Hey I've had sex with girls too! I just...well let's just say I'll take what I can get, when the feeling arises. You're one to talk though, the way you lapped at my tailhole...done that before I take it?"
"Hell no!" Knuckles barked back, "I was just caught up in the moment."
“Hh huh, sure."
"Oh shut it."
Shadow laughed, "Geez I'm only messing with you Red, relax." Shadow looked over to the red echidna and admired his penis, which was now barely visible. "Quite the weapon you've got there though."
"Huh? Thanks...yours is..." Knuckles found himself staring again. Shadow's dick was still fairly hard and was dripping with residual cum. "...I've never seen anything like yours actually. Not that I make a habit of admiring dicks or anything. I just..."
"Haha, no worries Red, I get that a lot actually." Shadow lowered his head and put on a sly smile. "You know...I could probably go another round if you want a closer look." 
Knuckles remained silent. He didn't want to sound eager, but he was now hungry for more. After the past week one round wasn't going to cut it. He involuntarily licked his lips and scooted across the floor next to Shadow. "What did you have in mind?" Knuckles rubbed the back of his head while kicking off his shoes leaving him bare except for his green socks. Shadow in turn removed his shoes and gloves, then wrapped one arm around his friend pulling him closer.
"Why don't you just do…whatever comes naturally for you Red. "
Knuckles sighed then reached up with his opposite hand and grabbed Shadow's cock. Now in full view he ran his fingers up and down the shaft exploring its spines as well as admiring the taper and length. He quickly became mesmerized by its features. By comparison to his own, which started getting hard again, it seemed more developed. It was unexpected as Shadow was a few years younger than he was. Shadow was a different species though, so he thought that might have something to do with it. Still though, he was a little jealous of the black hedgehog's confidence towards his organ. "How...how does this feel."
Shadow hummed, enjoying the feeling of his friend exploring his body further. "Work the tip a bit more."
Knuckles scowled, moving his fingers upward meeting at Shadow's tip. He squeezed them gently pinching the red flesh. He then got a sly smile of his own and ran the tip of his index finger across Shadow's pee slit. Shadow jolted back at the motion and quickly turned his head to Knuckles. The red echidna smiled and did it again, pushing the tip of his finger slightly into Shadow's dick. It didn't go far, but it was enough to get Shadow's attention. 
"Wait...we should..."
"Yeah?"
It was then that Shadow realized what Knuckles was doing. He was continuing the games from earlier...trying to see which one of them would cave, and admit defeat. That wasn't going to happen. Shadow in turn grabbed Knuckles' dick and did the same to him. Running the tip of his finger across the echidna's pee slit, Knuckles gasped. 
"Seems we've reached an impasse," Shadow said.
"Your move perv."
Shadow bit his lip and lowered his grasp down to Knuckles' base. With his index finger he felt around through the echidna's pubic fur until he found the edge of the slit. Looking directly at Knuckles, he pushed his finger into the tight opening between Knuckles' dick and skin. Knuckles gasped having his slit penetrated by Shadow's finger. "Shadow what the..."
"How do you like that, Red?" Shadow said slyly. "Bet you never had a finger in there before."
Why the fuck would I?" Knuckles shouted. Shadow then pushed a second finger into the tight slit. He rubbed them back and forth against Knuckles' inner shaft and slit walls. Knuckles let out a soft moan feeling this new sensation. "Where did he even learn this?" He thought to himself. "It's not like he even has a...wait does he?" Knuckles in turn reached his hand to Shadow's base. Knuckles ran his fingers along its edges looking for a way in. It seemed that Shadow's slit was a bit harder to find as his cock was so thick. Eventually Knuckles worked a finger past the black hedgehog's throbbing member, and shoved it into him 
"There you go, Red," Shadow moaned as he forced a third finger into Knuckles. Knuckles groaned as the limits of his slit space was pushed further. He was quick to do the same to Shadow, pushing a second and third finger into the black hedgehog's tight slit as well. The two of them moaned as they fingered each other's forbidden zones. Knuckles couldn't believe that having his slit played with felt so good. It made his dick throb uncontrollably and leak his juices out with every pulse. Shadow, while had certainly played with his slit before, he had never had anyone do it for him. The sensation of Knuckles' thick fingers jamming into him right next to his dick was almost unbearable. The red echidna's bony knuckles were also grinding against him, causing a strange mixture of pleasure and pain. Shadow just couldn't get enough of it. Not to mention the warmth and wetness of Knuckles' slit on his own fingers. it was driving him wild. 
"Oh yeah Red!" Shadow grunted, "How’s it feeling?"
"Fuck, Shadow...this is actually really hot!" Knuckles said, through his heavy breathing. Knuckles was completely resigned to the pleasure now. He didn't care about who he was doing it with, just that it felt amazing. He was drunk with pleasure not wanting it to stop, nor wanting to stop fingering Shadow's slit. However, he could feel the rising need to cum building in his loins. He tried his best to resist, but Shadow was just too skilled at finding just the right spot to rub against. "Ah, Shadow...I'm...I'm getting close."
"Ah, me too Red. You're doing really well!" Shadow didn't want it to stop either. He kept trying to focus on his partner, but quickly was jolted back to his own lust every time the red echidna's knuckles grinded against him. Suddenly an idea cut across his mind and he immediately pulled out of Knuckles. "Hold up Red, I want to try something." Knuckles pulled out his fingers as well and panted. 
"Damn it, I was nearly there," Knuckles grumbled. As he said so, Shadow got up and sat on the edge of the sofa. He spread his legs and put three of his own fingers in the left side of his slit. Knuckles stood and watched as the black hedgehog pushed his dick to one side. 
"Try sticking it in me here," Shadow instructed. 
"Uh..." Knuckles replied, jaw open in surprise, "You want me to fuck your slit? I don't think that will work."
"Won't know until you try Red. Come on." Shadow gestured with his free hand, waving Knuckles up to him.

Knuckles shrugged and positioned his tip right where Shadow's fingers were. As he pushed against the slit, Shadow pulled his fingers back out letting the red echidna's dick enter the tight opening. Knuckles pushed inward causing Shadow to wince. Shadow knew his slit wasn't deep enough to handle all of Knuckles, but he was determined to fit as much as he could. 
"Whoa!" Knuckles gasped as he pushed further and further into Shadow. "This feels incredible!" His flair pressed hard deep into Shadow, rubbing against the inner walls of the black hedgehog’s slit. Shadow squeezed his slit pressing their cocks together. The two shared a deep and instinctual moan. 
The red echidna's member throbbed in his partner, leaking out a few spurts of precum. He pushed in a little further, getting about half of his dick inside. It was as far as it would go, but it was more than enough to send wild sensations through them both. Shadow's dick was pushed to one side of Knuckles, which caught the echidna's attention. He reached down and grabbed it as he pulled back out of Shadow slightly. Hesitantly he pulled Shadow's member closer until it was sliding against his own slit. He took a deep breath then guided Shadow's tip inward past his own throbbing hard on. Shadow gasped looking down at their points of connection. 
"Fuck Red! You too?"
"This was some idea Shadow! I've never felt anything like this before. I didn’t think I'd be screwing around with another guy, but I just can't stop."
Shadow blushed and wrapped his legs up around Knuckles' waist. Pulling on his new lover he forced their cocks into their respective slits. Both moaned, engulfed in pleasure. Their minds went blank and they just bucked their hips together prodding each other. The sound was unreal. Slapping. Sloshing. Moaning. The more they moved, the more each shot spurts of precum into the other. "Fuck Shadow, I'm gonna come!"
"Me too Red! Let's fill each other up!"
They both arched their backs forcing into each other as deep as they could. Simultaneously they let out their cum grunting at the top of their lungs. The duo’s cum splashed together out of each slit. Their cocks throbbed while being coated by the other's thick seed. Shivering and holding each other tightly, they slowly came down from the peak. 
"Holy fuck Shadow," Knuckles said, trying to catch his breath. "That was so intense." Shadow said nothing, only continued panting. "Hey, Shadow?"
"Yeah," the black hedgehog managed to get out.
"Do you think I can come over to play more often?"
Shadow smiled, "Sure Red. You're welcome anytime."