Knuckles Forces: Infinite's Prisoner
commission for bbbuuu

It was dark days. Sonic was missing, assumed dead. Tails was missing and presumed insane. This led Knuckles to lead the Resistance as Dr. Eggman, aided by Infinite the jackal, conquered much of the world. Knuckles wasn't that much of a leader, he didn't really have the head for strategy, but he was willing to lead the charge on the front lines, so the other surviving heroes were willing to follow him. Their success had been limited, but it didn't stop them from trying, and today Knuckles was once again leading the charge, his fists bashing through the slow-witted robot soldiers guarding this latest Eggman base. "Turn off your comms, Knuckles." he heard Rouge say in his ear, "You're too close to the base. Our communications may be monitored." Knuckles shrugged, yanking the comms device out of his ear and smashing it in his fist. Rouge would scold him for that later, but he didn't have time to figure out how to turn the small gadget off. "I got bots to trash!" he grunted, charging ahead and starting to leave his battalion behind. "Slow down, Knux! Hey! We're gonna lose ya!" Vector shouted, but he was too late. The echidna had begun a glide into the city-sized base. It was huge, made up of several buildings surrounding a central command tower. "This is as good a place to start as any!" he said to himself, heading for the nearest entrance. He punched open the door to what appeared to be a warehouse. A well defended warehouse. "Alright, bucket heads! Who wants to be first!?" he shouted, fists raised and ready to rumble! He didn't even notice someone coming up behind him. "It appears you'll be first, fool." Knuckles barely had a chance to register Infinite's voice before he blacked out, knocked unconscious by a sneak attack!


He groaned as he came to. Knuckles could feel the chains binding his wrists even before his eyes opened to see that he was trapped in a cell. His arms were chained to the back of a chair, his ankles restrained against the legs of said chair. He couldn't see the window behind him, but it he could, he might realize that this was actually the same warehouse. "How long was I out...? Hours, days? Can't believe I let myself get captured." He tugged against the chains, attempting to struggle his way free. "Unngh... No good. These chains are made of tough stuff... And the chair seems like it's bolted to the floor. C'mon, think! There's gotta be a way outta here..." he said to himself. He looked around, but his attention was quickly drawn to the cell door, which opened up to reveal the masked freak himself, Infinite the jackal. "You... Where have you taken me, you bastard!" Knuckles shouted. Infinite stepped in silently, seeming oblivious to him. Knuckles growled. "You smug asshole, answer me!" The mask turned to glare at him. "I'll ask the questions here. Where is the rebel base? Oh, yes, you prefer 'Resistance.' Pitiful as your resistance is..." he said. "Screw you, asshat!" Knuckles snapped. This earned him a slap across the face. "Don't make me ask again." the jackal growled. Knuckles glared up at him. "I'm not gonna say shit to the monster that killed Sonic!" Infinite raised a hand to strike him again, but paused, considering his words. "Interesting..." he murmured. The echidna tilted his head. "What's so fucking interesting?" he asked. The jackal adjusted his mask, his expression impossible for Knuckles to read. "Why would I kill Sonic? That would be a waste. Ohhh, no... Sonic is alive. He's quite the... asset..." he sneered, "I'm making great use of him!"

The echidna just scoffed at him. "Asset? Please, this is SONIC we're talkin' about. There's no way he'd help you!" he said with certainty, "And neither will I!" he added. The jackal calmly touched the ruby on his chest, though Knuckles didn't take notice of this motion. "On the contrary. Conquering the world is a heavy task... It's quite useful to have some...stress relief." he said with a sneer, "Come in, Sonic..." he called with a commanding snap of his fingers. Knuckles could see someone approaching from the shadows, and his eyes widened when he saw Sonic approach! His trademark sneakers had been traded for black boots, and black gloves as well. His chest was covered with a tight crop top sporting a red Eggman logo, and matching the color of that logo was a miniskirt surrounding his hips! And to firmly cement his place, Sonic was also wearing a collar with that same Eggman logo on the front. "No!" Knuckles gasped, struggling against his chains a bit in his anger, "What the hell have you done to him, Infinite!!" he shouted. Sonic strode over to Infinite, embracing the jackal, nuzzling against his shoulder in a shocking display of affection. Infinite took the hedgehog in his arm, and though he was masked, Knuckles could tell he was smirking as he slipped his hand under that skirt, shamelessly grabbing Sonic's ass. "It should be obvious even to a dimwit like you..." he stated, giving that ass a firm squeeze, making Sonic gasp softly, "I've done plenty to him. Every day... Oh, of course he had that pathetic hero's bravado at first, insisting I'd 'never get away with this' and that he'd 'never surrender.' But I knew he would enjoy it... Again and again, I 'showed' him just how much he'd enjoy it. And finally, the so-called hero surrendered, begging to take his place in Eggman's Empire!" he declared. And seeing Sonic's expression as Infinite molested him, Knuckles found it hard not to believe those words.

Infinite took hold of Sonic, placing the hedgehog in front of Knuckles, facing him. He grabbed Sonic's quills like they were hair, making him let out a soft, submissive gasp. "Bend over for me, my pet." the jackal ordered, and Sonic obeyed without question, his hands resting on Knuckles' knees while his ass stuck out for Infinite. The villain rubbed the "hero's" rump, watching his prisoner with an apparent smug expression under his mask. Knuckles heard Sonic gasp, and though he couldn't see, the echidna could tell that Infinite had pushed his fingers into the hedgehog's hole. The very idea made his stomach turn, not out of disgust for the act, but for what it represented. Infinite pushed his fingers in and out of Sonic, making him let out naughty gasps like a good slut. "Now, your friend here is going to kindly ask for the information I need; The location of your wretched base of operations." Infinite stated, twisting his fingers inside Sonic's hole to make him shudder and moan, "If you choose to divulge that information quickly, then I may permit you some conjugal visits with my pet here. I'm sure you'll find similar delight in his company that I do..." Knuckles looked at the slutty expression on Sonic's face while Infinite literally had him wrapped around his finger. He hated to admit it, but an image of himself in Infinite's place, doing all kinds of naughty things to that ass, was very quick to appear in his mind. It was even causing a stirring in his loins, and he grit his teeth as he tried to regain his composure. He definitely didn't want Infinite of all people to think he'd gotten him hard. The finger slid out of Sonic's hole, and that same hand suddenly smacked that blue bottom, making the hedgehog yelp. "Start sweet-talking your friend, slave! ...I'll be watching..."

With Infinite moving to a good position to watch, Sonic began to go to work. Knuckles watched in shock as Sonic leaned in close to him, placing his hands gently on his shoulders. Those hands started gently rubbing, massaging Knuckles' shoulders while looking at him with lidded eyes. "C'mon, buddy... You just gotta tell me one thing..." Sonic cooed, touching noses with his frequent rival. Knuckles squirmed, but that only reinforced how trapped he was. "Listen, Sonic... You gotta get us outta here. Hey...HEY! Snap out of it, hedgehog!" he said, his voice raising into a shout as Sonic seemed to ignore him, continuing to sensually rub those shoulders. "There's nothing for me to snap out of... Come on, do it for me, handsome..." Knuckles didn't have time to be flustered at Sonic calling him handsome. Those lips were closing in on his fast, and he pulled back his head to dodge it, but Sonic simply changed targets and planted a smooch on his exposed neck! Knuckles gasped as Sonic's lips pecked his neck repeatedly, and again he pointlessly tried to struggle, but Sonic had him right where he apparently wanted him! He felt the hedgehog's hands on his chest, feeling up the strong muscles of the echidna's body, trailing down, lower and lower, soon resting on his thighs. Sonic's head drew back, and Knuckles looked up at him, panting softly. "Sonic...please, th-think for a mo-!" The echidna had dropped his guard to speak, and Sonic seized the opportunity, catching Knuckles' lips with his own, squeezing those thighs while his action made the echidna's guard drop further, allowing Sonic's tongue entry into his maw. Knuckles wouldn't admit it, but he'd definitely fantasized about this moment... But in his fantasy, their roles were reversed. The days on Angel Island were lonely, sometimes stressful, and the thought of Sonic being at his mercy, succumbing to his advances, even as he took things further and further...

His eyes grew panicked as Knuckles realized what thinking of his fantasies was doing to him. He felt his "red rocket" stirring to life, the idea of doing naughty things to Sonic getting his body excited. It didn't help that Sonic was still kissing him, and feeling desperate, Knuckles pulled away once again. "S-stop it! Cut it out! Get ahold of yourself, Sonic!" he shouted, turning his head away to avoid another smooch. As Sonic reached to turn the echidna to face him again, he felt something hard poke his thigh. A sly expression crossed his face. "Not on the mouth? Mm, well, I can kiss you somewhere else..." he purred, starting with the nape of his neck. Knuckles shuddered, realizing he was in trouble. Sonic's lips trailed kisses downward, pecking over his chest, teasing his nipple, going down, down, down. Knuckles yelped and shivered, starting to sweat as he watched Sonic lower to his knees, looking directly at the echidna's arousal! Infinite gave a sinister snicker. "You have the power to stop this. Just tell me where your headquarters is. It's that simple." Sonic, however, wouldn't give Knuckles the chance. His tongue swiftly slid against Knuckles plump dick, starting to lavish him with attention. Knuckles clenched his teeth, trying to hold back moans while the hedgehog skillfully ran his tongue over his length, showcasing his talent for this work. It was better than the echidna had imagined, and Infinite could see the surprise in his eyes. "What's the matter? You didn't expect Sonic to be so well trained?" he chuckled, "Let's say he's had plenty of practice. And he's been so eager to learn..." the villain said tauntingly. 

As if to demonstrate what Infinite was saying, Sonic's mouth dove down, his lips sliding to the base of the echidna's cock, accepting it all into his maw! Knuckles shut his eyes tight, giving a loud moan that showed clearly how pleasurable he found the blowjob. He had to keep his head, though. He couldn't let himself give in! Infinite watched as Sonic's head bobbed up and down, his lips trailing over the red meat. Surely the echidna would break soon. "Just one answer, and you won't have to live down any more of what Sonic is doing to you. You know what I need from you..." he said. Knuckles groaned, turning his head away from Infinite. Sonic's tongue was practically attacking his dick, lavishing it with attention. He knew just when to back off to avoid making the echidna cum, too.  He was an expert, and it made Knuckles want to grab his head and pound it until Sonic gagged on his cream, but he couldn't do that now. He grit his teeth, trying to stifle his moans. "I have the power to make this more or less pleasant for you. Tell me where your friends are... where they plot... all of it!" Infinite demanded. "N-noohh!! Gah! I w-won't tell you n-nothin!" Knuckles insisted. Sonic's tongue trailed around the head of his cock. Damn, he wanted to paint that cocky face white, but the echidna held firm. He was the leader of the Resistance for a reason, and he'd set a good example for his soldiers even in a situation as dire as this! There was no visible change in Infinite's demeanor, no hint of expression behind that mask. His will appeared just as strong. "I should have known a friend of this hero would be tough to crack. Very well, then we will hold nothing back. Enough, Sonic... It's time to put more of your training to use!" he said, snapping his fingers.

Knuckles gasped with a mix of relief and disappointment as Sonic's lips released his length. Instead, he turned around, sticking his rear towards the echidna, giving him a nice view of his blue bottom under that skirt! The image of himself railing that cute ass popped in Knuckles' mind, but before he could dwell on that fantasy, Sonic was in his lap, letting his cock slide right in between those soft ass cheeks. "Mmh, I do love my hot dogs..." the hedgehog purred, moving his ass up and down, letting Knuckles' shaft grind against his hole. The echidna gasped, his cheeks as red as the rest of him. Infinite adjusted his mask, staring at Knuckles with more intensity. "This is your final chance... Give up your pathetic resistance... Or Sonic will go all the way with you. I wonder if your pride can take that..." he sneered. Knuckles watched Sonic's ass move, blue buns hugging his red sausage. He could feel his length rub against that hole that he'd so longed to fill. It was an easy choice, but he had to take care not to lose himself. "S-screw you, Infinite! The r-resistance is gonna kick your a-ass!" he shouted, struggling to keep his full composure with Sonic's butt in his lap. "You think they won't find out what's happening here? Everyone will learn how Sonic used you..." the jackal said, trying again to appeal to the echidna's sense of pride. Panting from Sonic's ass hugging his length, Knuckles shook his head, remaining defiant to the bitter end. "I c-can't give 'em up... I won't!" he shouted, partially affirming it to himself. A low growl came from behind Infinite's mask. "You had your chance... Break him..." he said in a soft, sinister tone.

Adjusting his position slightly, Sonic lowered himself down, letting out a soft purr as Knuckles' length entered his tight hole, becoming buried deep inside him. Knuckles tried to keep his lustful gasp in as he felt those walls hug his shaft, finally feeling just how tight that ass really was! In no time, the perverted hedgehog was moving, his rear end bouncing up and down along the echidna's cock! Knuckles grit his teeth as he threw his head back, moans desperate to escape him. He heard Sonic's moans instead, taunted by the knowledge that the blue bitch was apparently enjoying this! "Do it, Knux... Tell us where the base is..." the hedgehog said between moans. "Ngh... n-no, I can't! Uhnnngh!" Knuckles cried, trying to keep it together. He looked down, seeing that skirt flap around Sonic's waist while he bounced on his dick. "C'mon, Knux..." Sonic started to reply, but stopped as Infinite stood in front of him. Knuckles might have been keeping his head pretty well, but the show had caused the jackal to sprout his own boner, his beefy cock pointed right at the Eggman logo on Sonic's top. "I'll handle this interrogation... You've got more pressing matters to attend to..." the villain said with an obvious smirk behind his mask. Knuckles gasped to witness how willingly Sonic leaned forward, kissing the jackal's tip. "Aww, yeah... Let's do this..." he whispered before Infinite took that spiky head in his clawed hands and pushed his cock deep into Sonic's mouth! "When this is over, you'll both be MY sluts!" Infinite said, glaring at Knuckles, "...unless of course, you tell me what I want to know..." Knuckles shook his head, grunting to avoid moaning as he felt Sonic's ass drop down onto his dick again. No matter what "deal" the jackal tried to make, he had to hold on!

Sonic was soon moving like a see-saw. When his mouth slid down over Infinite's cock, his rear moved up, almost releasing Knuckles' dick. When his head lifted up, his tongue teasing the jackal's tip, his blue butt crashed down, consuming Knuckles' shaft once more! This went at a good pace, with Knuckles feeling his length push inside that tight hole quite a few times per minute. Knuckles panted in rhythm with those motions, doing his best to stay strong, and to not cream in Sonic's ass. Not that he didn't want to... In fact, he'd love to let loose, stuff that slut utterly full, and then pull out and paint his body white so he'd resemble Silver. But he didn't want to give Infinite the satisfaction, didn't want to fuck Sonic on that monster's terms! Whether he wanted it or not, however, it was happening. Sonic's muffled moans filled the room, the jackal's servant seeming to enjoy essentially getting spitroasted. Infinite seemed pleased as well, but he wouldn't forget his goal. "Uhnn... Such a perfect slut... Come now, end this charade, echidna. Answer my questions!" he shouted, giving a thrust into Sonic's mouth as frustration emerged in his voice. If he came before Knuckles, he might become too fatigued to continue this interrogation after all. It was an endurance battle between the two of them, and Sonic would challenge both of them to keep their heads, his speedy body moving his holes along their pistols quite skillfully. Knuckles could only watch and stifle his moans. How he wished he could spank that ass when it rose up, letting him see under the skirt. Alas, his wrists remained firmly restrained. "I-I won't talk... I won't!!" he growled in the futile hope Infinite would give up. "You WILL!" the jackal grunted in retort, determined not to lose this showdown!

Back and forth, up and down, Sonic kept pleasuring the duo, taking both dicks in his holes. Though receiving no attention, Sonic's own cock swung back and forth under him, sticking out from under his skirt. Pre dripped down from his tip as his rival's huge shaft struck his prostate over and over, filling him with pleasure! The sounds of sex filled the room for several minutes before, at last, Infinite grabbed Sonic's head and pulled it down, giving a satisfied groan as he found release, cumming hard into Sonic's mouth without a care! Knuckles could actually hear the gulping sounds from Sonic, the fallen hero swallowing down every drop obediently. "Yes... You serve me well..." the jackal huffed, releasing Sonic from his grip, "Now break that echidna... Make him snap so he'll tell us all he knows!" The command wasn't even necessary, as Sonic had already begun slamming his rear down on Knuckles' cock, putting his full focus into riding the red rocket now that Infinite had backed off! Sonic's back fell into Knuckles' chest as the hedgehog rode him. If only he could grab those speedy legs in his hands and pound that ass with his own power! But Knuckles was forced to accept his position under Sonic. Both of them cried out in pleasure, growing close to their climaxes! But Knuckles didn't register that he was going to make Sonic cum until it happened, and he felt Sonic's walls squeeze him just before firing. The lust in Sonic's voice, the squeezing of his already tight ass, and even just the knowledge that it was him, not Infinite, that was pushing Sonic to his peak... It was all too much for Knuckles to take! Thick white strings of white were already firing from Sonic's untouched shaft, pelting the floor... And Knuckles was about to fire his own directly inside the hedgehog!

Knuckles gave a slight growl through his moans, giving a few thrusts of his hips, doing his best to assert just a bit of dominance as he reached orgasm, his seed squirting hard into Sonic's tight tunnel, causing him to shout out in lust! "Kn-knuuuuucklessss!!" Finally, the echidna could hear his rival call his name like this. He only wished Infinite didn't have to be there for it. His load coated Sonic's insides white, the pent-up orgasm stuffing him good and full. He'd done it, he'd made it through all this without cracking! He'd won, right? Nope, Knuckles scarcely had a second to bask in afterglow before Sonic went right back to "work," continuing to bounce his blue booty up and down the now cum-coated dick, planning to drain the echidna's balls to the last drop if he didn't break down and give up the Resistance! Knuckles gasped and groaned, throwing his head back as the onslaught continued. "Tell us..." he could hear Sonic and Infinite speak in unison, almost as though they were the same person, "Tell us the location... of Resistance HQ!!" Sonic's ass kept swallowing his dick, bouncing on it over and over. Knuckles was drooling a bit, basking in the continued pleasure. The greatest failure of Infinite's plan, was that this was far from torture. In fact, the idea of fucking the blue blur's ass endlessly... It was like heaven! He easily ignored the increasingly frustrated demands of the jackal as his mind started to grow hazy, the mix of pleasure and fatigue getting to him. He thought the walls of the cell were dissolving, but everything also had a weird, sort of otherworldly glow. "Damn, they're too close..." he could barely hear Infinite say. His eyes focused on Sonic, watching the slutty hedgehog riding his cock right up until everything went black.

Knuckles awoke in the same warehouse as before. He could hear a loud noise at the door. "C'mon, boys, get that open!" he heard Vector shout. He entertained the notion that his time with Infinite and Sonic was a dream, but two things contradicted that. First...he was still tied to the chair. Second, his chest had a coating of cum on it, apparently his own. Not really understanding the power at Infinite's command, he decided that parts of it were, in fact, a dream. There was no way Sonic would do this, after all. "Damn... I must really be missing... Sonic of all people..." he said with a deep blush, figuring that had to be why he'd dream of him. A very sexy, vivid dream, leaving him feel a bit too drained for the small amount of cum on his chest. He wouldn't even notice the cum on the floor, because he was too busy trying to think of what he'd say to Vector. That awkward conversation was moments away, while Infinite had made his own escape for now. The question for you, dear reader, that I leave you to ponder... Had Sonic been naught but an illusion, conjured up by Infinite's powers? Decide for yourself, but for now, as Knuckles experiences a most awkward rescue, our tale is at an end.