He hadn't planned to sneak a peek, really he hadn't. But it turned out the real thing lived up to the legend. And so, as the elusive male on the other side of the divider continued to squeeze the echidna's shaft in his throat, Knuckles just had to know who it was. When his cock fell from the slut's mouth, followed by what could only be an orgasmic cry, he had his chance. It was in this brief moment that Knuckles managed to quickly grab the top of the divider and lift himself off the ground. His dick, still in the glory hole, bent downwards at a painful angle, but it was worth it as he saw who it was giving blowjobs to all and sundry.
No way! Tails!? The red echidna couldn't believe it, but there, on his hands and knees with a cum shooting hard on between his legs, was the yellow fox. He dropped back down, completely in shock. His mind was racing, a thousand sudden thoughts drowning out any attempt to think of a way to get out. Before he could even think of a plan, he felt those hot lips wrap back around his cock head. He felt conflicted as the soft, velvet-like mouth glided back and forth across his rod, sending tingles of pure bliss up and down his body.
Oh Chaos that's good... you know what, fine! Okay fox boy, you wanna be a cock slut? I'll make you my cock slut.

He began thrusting, hoping to distract the Miracle Mouth by making him choke on his cock, and sure enough, the cumhole seemed to be caught off guard. That didn't last long, however, as a few seconds later the guardian felt his whole cock being enveloped in the fox's warm, wet mouth.
He wants me to facefuck him... Knuckles was now seriously turned on, and as he shoved his manhood into the eagerly waiting jaw, he began to find the idea of Tails desperate for cock very arousing.
By the time he'd unloaded into the fox and made his way out, he decided he was very much in favour of Tails' new passion, he didn't even flinch as he bumped into Sonic and sent him off to get blown by his 'little bro'. But it wasn't his mouth he wanted now. Now, he wanted to get his dick deep in Tails' foxhole. He made his intentions clear when they met up later, revelling in he terror on the fox's face as Knuckles suggested several times that he knew who the Miracle Mouth was, before plausibly denying everything. Once Tails dropped him off, red faced and quick to fly away, the guardian began to formulate his plan for the next day.

Tails was practically giddy with excitement as he made his way across the empty hall that once housed Mobius' premier casino, not even aware enough to hide the raging boner on display between his legs as he imagined the day to come. All his friends coming to him to be serviced, including Vector, who was apparently even bigger than the monster he'd let smash his throat yesterday. As the threw open the door to the Men's toilets the now familiar scent of the public bathroom washed over him, his face subtly twitching as the sharp, bitter odours of urine and semen practically singed his nose hairs. This time however, someone was in there. An old, human caretaker, who seemed to be doing far more standing around than cleaning. On seeing the fox, the man grabbed his trolley, laden with mops and bottles of bleach, and made for the door.
"Bad luck, kid. He ain't here." And with that he left, causing Tails to shudder, he'd never been that close to discovery before. With a heightened sense of urgency, he quickly made his way to the end of the row of cubicles, changed the message on the door, threw a bag of supplies on the floor, and then locked himself inside, safe to fulfil his slutty desires away from prying eyes.
Or so he thought.

The red echidna couldn't help but smirk to himself as he swaggered into the Men's toilets as if he owned the place, locking the door behind him with the key he had relieved the caretaker of. Plans with friends or no, for the moment it was just going to be him and his fox bitch. He lazily made his way to the second to last cubicle, creaking the door open before turning to face the glory hole. The sight only turned Knuckles on more. 
He's made it bigger since yesterday. What a fucking whore. The nerves he had yesterday fully gone, he confidently thrust his cock through the enlarged hole. On the other side, Tails had slid down onto his knees, eyes fixed on the hole. He smiled as the large, red pole thrust back through the hole, his mouth watering at the thought of being forced to take a flood of man milk once again. However, as his lips neared the throbbing tip, it pulled back, disappearing into the other cubicle.
"Huh?" he asked out loud, before slapping his hands over his mouth. All that came was laughter from the echidna as a blush crossed Tails' face.
"Sorry buddy, just wanted to get your attention! I've got a bottle of lube here, and I was wondering if you'd mind turning around, let me see if the other end is just as miraculous." The fox smirked and reached into his bag, which was sat on the floor beside him.

He pulled out a thick black sash, one of his own design that blocked out practically all light. On each end was a clip, which once it was attached could only be removed by Tails himself. With that over his eyes, there was no way the echidna could figure out who he was. He began to shove it through the gloryhole, and said, in the lowest, gruffest voice he could muster:
"I'll do you one better, put this over your eyes and I'll let you in." The blindfold disappeared as a deep chuckle came from the other cubicle, followed by the sound of the door closing. His hand reached up to the lock as he called out.
"Got the blindfold on?" More chuckling came from behind the door.
"I don't think that'll be necessary. Open the door Tails." The fox's blood froze, he couldn't think, let alone move. The only thing he felt was fear. Complete overwhelming fear. Perhaps sensing this, the echidna's tone softened.
"Don't worry Tails, its okay. Let me in." He was rooted to the spot, but he managed to move his hand enough to slide open the lock. The door swung open, revealing the fox's 'Big Red'.

The echidna was in a strong stance, his legs somewhat apart. His left arm was extended, having pushed the door open, whilst his right was bent inward, allowing his hand to grip his cock. His cock, at 9 inches was fully erect, burgundy veins pulsing in anticipation along the shaft to the thick tuft of hair at the base as his hand slowing glided along the length, stretching his foreskin up and down the massive, flared head. Despite his kind tone, his face was brimming with a cocky smugness, his eyebrows arched and a wide smirk etched across his muzzle. Despite his fear, Tails could feel his erection throb as he took in the view. Knuckles' eyes drifted down as he watched the little yellow member twitching up and down.
"Heh, well at least he's happy to see me." The fox's muscles finally released him, and his hands immediately went to his crotch, desperately trying to hide his raging hard on.
"P-please Kn-knux, I-I can explain!" The echidna closed his eyes and shook his head.
"I already understand, didn't I say yesterday? Sidekick to a hero, treated like an icon. But you're a normal Mobian, you've got urges like anyone. Just turns out that you're urge is to suck every cock you can get your lips on. No judgement, I came here yesterday to get my dick sucked by a," he made inverted commas with his hands, "complete stranger." he laughed in a light-hearted way.

Tails finally managed to collect his thoughts enough to speak.
"How did you know?"
"I may have looked over the divider while you were shooting all over the floor." If it was possible, Tails was even more embarrassed. He tried to hide his red face by looking down to the ground.
"Oh. You saw that... um, you won't tell anyone, right?" The echidna stepped forward and placed a hand on Tails chin, tilting his head to look him in the eye.
"I might not, if you do exactly as I say. Can you do that, cocksucker?" The logical side of Tails' mind should've clocked on to the fact he had definitely just been blackmailed, but between Knuckles' size, his deep, sensual voice, and the demeaning pet name, Tails could do nothing but nod as he found himself weak at the knees.
"Good. Now, we're going to have some fun, so I'll need you to lean against the wall, and stick out that cute fluffy butt of yours." Calming down, Tails began to function more logically, and a memory flashed through his mind.

"What about everyone else, they're going to be here?" Knuckles waved a hand dismissively.
"Already called Sonic, told him to let everyone know you and I already tried, no Miracle Mouth today," he smirked and leaned in, whispering in the fox's ear, "just my cumslut. Now, get in position." Turned on now beyond belief, Tails did as he was told, leaning against the tally-marked divider and pushing his hips back, tilting his rear towards Knuckles.
"Good boy. Hmm, lets put this to good use." In a flash, the echidna wrapped the black cloth around Tails' eyes, tying it in a tight knot.
"AH! Knuckles, what are you-"
"Shh, calm down bud, you're more sensitive like this, so everything will feel twice as good." The fox gave a hesitant nod, pressing his palms to the divider to steady himself in his blinded state. As he did so, Knuckles got down on his knees, and firmly gripped Tails' cheeks, prising them apart to reveal the tight foxhole.
"Just gotta loosen you up first."
"W-with the lube." Tails surmised. The echidna smirked again.
"Nope. Lube's for my dick. You'll thank me later. Which means I'm going to have to do this the old fashioned way." Knuckles explained, his face getting closer and closer to the fox's crack.

Tails quivered as he felt the echidna's hot breath against his tight pucker, followed seconds later by the moist, rough tongue that slowly began to rim his anus. He bit down on his lower lip to keep himself from squealing, but it was an effort as he winced at the sensation. It tingled around his entrance, and ever so often prodded his hole, not penetrating, but certainly stretching it a bit every time.
"O-oh, Knuckles..." the fox whined, met only with similar sounds from the echidna, who was basking in the taste left on his tongue with every lick. Fleshy, and not as foul as most would have suspected. The prods became more frequent as the red guardian turned his efforts to giving the inexperienced fox a proper rimjob.
With the width of Knuckles' tongue, Tails wasn't sure that his ass could handle such a thick insertion, but sure enough, one his entrance was coated in spit, the ring of muscle stretched as the echidna dove his tongue into the fox's rectum. Moaning, he took a chance and began thrusting his hips against the broad mouth of his best friend, who seemed intent on pleasuring every inch of his ass. The veritable twerking against him was a surprise, but it was a happy one as it enable Knuckles to delve even deeper up his friend's ass, coating his passage with spit as he revelled in Tails' taste. Spicy and musky, and like his entrance, not at all as bad as most would assume. As he continued to rim the fox, Knuckles brought a hand to the plump set of balls Tails sported, fondling them with the odd squeeze every minute or so. A finger from his other hand traced the length of Tails' small, but rock hard manhood, then along his taint. These actions only increased the moans coming from his new plaything.

Tails was in heaven. The heat of Knuckles' tongue, the feel of his suction, the slick feeling of his finger running along from his balls to his hole, they all combined to make his body vibrate with pleasure. His stomach clenched at the delicious feeling that burned like a fire in his loins. He thought he might explode from the movements of Knuckles' mouth, he didn't want it to stop. He felt Knuckles lift his head from the rim of his ass and take a breath. His movements had slowed, and the echidna licked his lips.
"You taste so good," he said, licking his lips, "I don't care what anatomy says, this hole was made to be fucked." Tails giggled, but his friend's words did have him wondering.
"On that issue. Y-you're gonna be gentle and take it easy, right?" The echidna hummed to himself.
"Well, I don't want you to bleed... " he paused and then looked up with a smile at Tails.
"But I do want you to writhe under me as I break you in. And I will, and then I'm going to explode inside you." Tails felt his blush grow even more at the guardian's words, but a few moments later his eyes flew open and he felt Knuckles slide his spit covered finger into his hole.
"I don't know if that's a good idea... what if the..." the echidna shushed him.
"I've put thick fingerless gloves on, I'm not gonna stab you with my spikes." Tails gave a wobbly laugh.
"Came prepared huh?"

With a grunt in answer, Knuckles thrust two rather chubby fingers inside of Tails, stretching his asshole even further. With his left hand on his friend's dick, Knuckles pushed against Tails' prostate with the fingers. Without trying, Tails clenched around his fingers, his eyes closed and lips open as pants and groans came out as his sweet spot was pushed. Knuckles moved his hand, keeping his fingers inside of Tails' tight asshole. Tails gasped as the echidna held on to his dick even harder.
"Ah! Hah aha!" eyes opened wide, Tails involuntary bucked in bliss before Knuckles quickly pulled his fingers out, making his friend cry out in pain.
"Oww! Argh!" He pushed his ass back, trying to keep the fingers in.
"Sorry Tails, guess you're still a bit tight. Well, ready or not, it's cock time!" Knuckles stood up, and quickly slipped back into the other cubicle,  returning moments later with the bottle of lube.
"I got it." he said. He opened it and was about to pour a liberal helping onto his rock hard shaft before Tails cut in.
"Here, let me help you." Tails turned and reached out for the lube, until finally he took the bottle out of Knuckles' hand, and poured a generous amount onto his hand. He squirted even more onto the dick, and began to rub it all over the echidna's head, and up and down the shaft. 

As he massaged the lube over the muscles and base of his shaft, Knuckles moaned, taking a sense of pride at how Tails' fist didn't quite fit around his girth. He grabbed the bottle of lube back, and poured more onto his palm. He then began to rub his hand, and the lube, on Tails' hardening dick, making the fox moan even more. It may have been a waste of lubricant, but Knuckles didn't mind, he was happy to return the favour. Once Knuckles' cock was thoroughly lubed, he grabbed Tails' shoulders and spun him back round to face the wall, his ass now inches away from his shaft and balls. Tails tensed up at the harsh contact, his dick twitching as it was pressed against the cold wall. He winced as he heard a loud groan coming from Knuckles, and he could feel the echidna lift his rear into the air, arching his back off of the wall as he pushed his entire dick into Tails' crack, easily sliding in between the fox's buttcheeks.

Tails gripped the divider, bracing himself as the thick, veiny cock began to hotdog him. He gasped as it did it again, and again, till his knees buckled and he dropped, gasping for breath as he seemed to slip towards the floor. Firm hands grabbed his hips as he fell, and pressed him in place for Knuckles' shaft. The cock continued to thrust, slapping against his hole over and over. Overwhelmed by the teasing, Tails squirmed in the muscly arms, writhing in pleasure as Knuckles continued to slide, just missing his quivering entrance every time. 
"Please don't tease me!" the captured fox moaned, earning nothing but a cocky laugh from the echidna.
"I want to hear you say it." Dazed in pleasure, Tails couldn't make sense of the request.
"Wha- what?"
"Come on cockslut, tell me what you want." He blushed as he realised what the guardian wanted from him.
"Please, Knuckles, fuck me!"
"Good boy."
He held his breath and waited for the cock to penetrate. As the rim was finally stretched open by his entry, Knuckles' eyes screwed shut, his face twisted in pleasure as the head of his cock began to enter the foxhole. He began thrusting for a moment, and opened his eyes, a cocky smirk on his face.
"I told you it would be tight, fox boy."
Tails shuddered at the mention of the nickname, fighting to contain the violent tremors that were gripping his body. It wasn't just the size of the guardian's cock that was keeping him pinned down, but the raw dominance that Knuckles emitted as well. A smooth thrust into the foxhole pushed Tails forwards against the divider, as the shaft plunged deep into his guts.
"You're so big Knux!" Tails cried out, feeling the cock stretch the walls inside of him. The echidna held his arms in a vice like grip on Tails hips, and kicked up the speed of his thrusts. His fingers dug into Tails' sides, keeping him still and helpless as the monstrosity pounded into him. There was a brief moment of released pressure as Knuckles pulled back, his moist, lube coated cock sliding out to the glans with a slurping sound. Tails tried calm himself, gasping for breath as he clenched the divider but any breath he had was taken as Knuckles ploughed into him again, giving Tails a wonderfully full sensation of his own insides rippling to fit the foreign object inside him.
"Fuck, you're so tight!" Knuckles grunted. He was barely able to hold it in, and precum began to well up, leaking from the tip of the cock. He lowered his chin as he fucked his friend's ass hard. Tails moaned and arched his back, pushing against the echidna's groin to fit more of the girthy cock into his ass. The tightness grew, the feelings of pain and pleasure and tenderness blending together. More cock glided in, and he could hear it slurping along his ass, causing a new barrage of shivers to ripple through his skin.

After several minutes of ever more painful resistance, Tails should have stopped pushing back, as Knuckles was able to get most of his thick,  meaty cock in his ass. Still, it was not enough to reach the base of his red hotrod, and so Tails continued to push himself onto the cock, taking it even deeper. He moaned, feeling Knuckles still bucking into him from behind. Tails tightened himself around the echidna's cock, and let out a guttural sound, squeezing the cock tightly. When Knuckles felt the fox's ass clenching around his cock, he reached up with his right hand and patted Tails on the head.
"Aw, who's desperate for the big red dick?" He said playfully. Tails couldn't even respond, his only reply was a melody of gasps and moans. Knuckles chuckled, deeply satisfied at how his manhood had turned the eloquent genius into a horny, mumbling mess.
"If you're this desperate for my cock, I might have to make your fantasies come true." The echidna continued.
"Wha-whada ya mea- ohhh!" Tails could barely speak through his moans.
"Come on, I saw how horny you got when I said I wanted to bend you over my altar." Knuckles gave an almost cruel laugh. 
"Maybe in exchange for my silence you could move out of that workshop and live with me on Angel Island, keep me company."

Knuckles let go of Tails' head in order to grab his friend's cock yet again, kneading it in his hand. As Knuckles hand engulfed his lubricated member, the echidna's cock head pressed against the fox's prostate, sending electric jolts of pleasure through him. He almost sobbed, unable to handle the amount of pleasure he was receiving. Knuckles moved his hips and cock as he fucked the fox's tight hole, forcing his dick further and deeper, straining to get more and more of his dick into his friend.
"Ah! Aha!" Knuckles groaned, feeling his shaft being almost massaged by his friend's cavity.  The fox's own eyes rolled into the back of his head, and Tails felt like he was being torn in two by the fucking monstrosity. With one tectonic sized push, Knuckles finally buried his entire shaft into the fox's ass, dragging his organ back out, only to go balls deep again with another thrust.
"Ahh! Knu- Knu- ooh, deep!" Tails was seeing stars, unable to even form words as his cock was squashed like a banana and the rest of him was stuffed like a turkey at Christmas. He could feel the quickly growing knot of white hot pleasure forming in his rearranged guts, building with every thrust of Knuckles' cock.

Somehow sensing Tails' impending climax, he sped up the movements of his hand.
"Come on, it's time to get you off, Tails!" cried Knuckles, bucking in and out faster and faster, making Tails moan loudly.
"Oh! Hehehe! I-it feels so...ohhhh!" Tails' mind was jumbled as Knuckles felt his cock spasm once, and then again. A third spasm seemed to go on forever, but Knuckles didn't stop pumping. Finally with a mighty cry, Tails came. His cock throbbed and twitched violently, and he cried out in ecstasy as it shot cum out of his almost vibrating glans.
"I-I'm coming, Knuckles!" Tails moaned, and gave Knuckles' shaft a vice-like squeeze as ropes of his cum splattered onto the divider. Knuckles fucked him through his orgasm, sending shot after shot of sticky seed onto the wall, with some even flying through the gloryhole into the next cubicle. As Tails began to come down from his climax, the echidna could feel his building up.
"Better get ready, fox boy!" the echidna cried, his words muffled by Tails' cum induced afterglow. He thrusted again, forcing the full length of his member down into the fox's ass.
"H-here it comes cockslut!" He felt his balls building up, and then he felt his own cock erupt into Tails' gaping hole. He could feel his spunk spill into Tails' bowels, giving him the full experience.Tails groaned again as he could feel the echidna cumming inside him. The echidna didn't stop moving, but kept pumping away.

"M-more... Do it... o-o-other way, more..." Tails groaned, clearly more used to cocks cumming in his mouth.
"Ass to mouth? You are a little whore, aren't you? Okay, this will be fun! Better start sucking quick!" The echidna replied.
"Fuuuuuuck..." The echidna groaned as he pulled out of the fox's ass, then he spun him round before forcing him on his knees, the still cumming cock on his lips. Tails turned his head, and took the shaft to the hilt in one bob of his throat.
"Look at you, loving cock!" the echidna remarked smugly. Tails only nodded as he drooled, he jaw once again prised open by the mammoth shaft as he tasted the echidna's warm cum, as his eyes rolled back in his head.
"You're my cockslut now, you better love what I do to you, or else I'll just have to spill your secret." The echidna remarked.
Tails swallowed every drop of Knuckles' thick, gooey cum, taking the mixed taste of salty spunk and the musk of his own anus. It wasn't the first time he had tasted the cum of Knuckles' cock, but it was still a beautiful taste, the sweetness, the saltiness, with a slight spiciness from his now gaping hole added in.

The tide of spunk began to subside as Tails gulped down the load, half of it still pouring out if his thoroughly breeded hole. After the echidna was done giving Tails his filling, he allowed him to stand. The echidna let go of Tails, his cock becoming more flaccid by the second. As he began to leave, Tails removed the blindfold and turned his head out of the cubicle after him.
"W-where are you going!?" Tails nervously shouted.
"Oh, just going to find the right moment to tell everyone, it's a shame that you didn't accept my offer to be my personal cocksucker." Knuckles replied from the other side of the toilets.
"What offer?!" Town cried out in shock. The echidna smirked.
"Oh, my price for secrecy. You can keep sucking dick all you like in here, but outside these walls, that ass and mouth belong to my cock." Tails looked down, a blush covering his face.
"Deal." Tails simply replied, his mouth dry from his licking and slurping as he waited for his new owner to reply.
"Good, when you're done here, I expect you on Angel Island ASAP. See you, Cockslut." Knuckles turned the key and unlocked the door, slipping out as quickly as he came in, leaving his new pet to his fun. He had some accessories to buy.

Hours later, Knuckles sighed as he laid back on the steps of the Master Emerald shrine, his arms behind his head. Usually being sat alone on his floating island after the gorgeous view of the sunset was terribly boring, but not tonight. He lazily opened his eyes, staring at the fox between his spread legs. Blindfolded, collared, and riding his cock with his hands tied behind his back.
"Come on Cockslut, I want the whole thing in that ass of yours. I know it can fit."
"Y-yes S-sir, Kn-knuckles." The guardian sighed in relaxation as he took in the sweet sound of Tails' moans as he kept trying to get the thick base of his cock into his tight hole. Life on Angel Island had always been lonely, but maybe having a pet fox on his cock would make his duty easier to bear.

THE END.