"Fuck me all you want, you can't break me! I can take all of you!"

Those were the last words blurted out by Knuckles, who was in so severe of a situation. He could hardly manage to make himself believe his claim, more so was it harder when the cum of the green hedgehog leaked out of him.  "Nngh, aw god" The white seed trickling down his taint and the red orbs underneath was so warm, and it leaked from his newly screwed ass as Nack pressed his cock against his tail hole. 

"Fuck you, Nack..." Knuckles grunted and showed he wasn't going to just let the weasel slip up inside him, but try as he best as he could. The echidna felt the thick head aided greatly by the semen of Scourge, who was snickering from the side lines while he watched in amusement at the guardian's added statement. "I knew you were low, but this is on a new level" 

"Hah! As if you thought I cared what you think about me" He heard the weasel retort and soon after his face winced when it finally happened. A forceful shove from the purple Mobian behind him and a wet pop signaled to those close enough to hear a very clear penetration. The red echidna held his breath and grit his teeth as he felt Nack's thick cock of about five inches spread his cum lubed hole. Then Knuckles let out a groan to the sensation of  the throbbing meat sliding in until hilted to settle.   

"Holy Mobious, your ass feels amazing, hugging my dick like that" Nack spouted at Knuckles who's cheeks were red and eyes were closed. All in a vain attempt to shut out the dirty talk of the villain, who now pulled back then began slowly fucking him.  

"Just... cum and get it over with" Knuckles half growled and half muttered from behind his teeth, hating that he just said it. But he only wanted this to end as quickly as possible.

Unfortunately for him however, Nack didn't care to finish quick. "Like Hell will I" The odd toothed rat laughed and slowly rotated his hips, making Knuckles feel his cock swirl around his walls in circles. This was an action that caused the echidna to arch his back sharply and groan out in confused pleasure.  It wasn't like he wanted this, but that hidden gland inside him was poked and prodded  by Nack's dick. Natural responses acted and kept his own cock rock hard throughout the duration of his fucking.

"What have we got here?" 

"F-fuck you, Nack! Don't touch there!" The echidna hollered angrily in response to the bandit now taking liberty of wrapping his brown leather clad fingers around his rigid member, the villainous weasel not stroking it however.  The guardian's face twisted into an expression showing pain considering Nack's leather glovers were somewhat worn and he was squeezing his shaft harshly in the grip of them. 

"Damn yer so hard right now Knux, you must like having dicks shoved up under your tail, huh?" The purple Mobian taunted and commenced to thrusting his cock harder into the exquisitely tight heat of Knuckles's sweet red ass.  Voices were calling out from behind to the red male's dismay, they were encouraging   shouts of the men growing steadily more worked up to have their turn with the prisoner. Some were getting rambunctious and starting to argue over who was going to claim the red hyde after Nack was finished. Storm was among the more rowdy in front, trying to shove the others back as he was determined to be next, not some no name dingo.

"Hey! Hey, everybody just chill the fuck out!" Scourge returned from another room, a beer in his hand while he confronted the commotion "Y'all will get your turn, just shut the fuck up and line up. I ain't even gotten paid by none you assholes yet!"

Knuckles couldn't drown them out anymore amidst the noise of Nack's hips slapping against his rump loudly while still holding his cock in a death grip which built up quite an unpleasant pressure in his shaft and bulging mushroom head. But the pain is his dick wasn't as worrying as the noise in the back of the room. He really didn't know how many guys were back there waiting to fuck him like some hole just there to drain their cum. It made him feel sick

Nack suddenly let go of Knux's member, causing a flood of relief to wash over the red one. But he started to feel more friction heating up his stretched tail hole, the hips of the weasel slamming harder and against his back end and balls slapping his "Aw ffffuck yeah, get ready for it red!" 

"No... N-not inside" With his head hung low in shame once more the echidna knew it was no use pleading. The bandit's cock swelled inside him and he could feel as it throbbed in his hole, Nack letting out a guttural moan as a burst of cum exploded from the head of his dick. 

Knuckles shuddered and swallowed a lump, his mouth dry while his rear was soaked inside with spurt after spurt of hot seed mixing with Scourge's from earlier.

 "You...fucking bastard, I'm going to pummel your brains out of that worthless skull when I get free" The prisoner threatened in an angry not quite a whisper.

"Yeah, well it ain't like ya know where I live, so whatever, Knucklehead"

With that last exchange the echidna winced while the thick length was pulled out of his abused and cum filled ass, his pucker tightening up after a short stream of the white stuff leaked out and trickled down his thighs.

"Alright, Storm is up since he was so eager to fork over cash first" Scourge announced and the albatross grew a smug grin as he crossed the floor with his hard on in his hand. 

"That's right, you red mutt. Not gonna be such a hot shot now, are you?" The large bird spoke whilst roughly tugging up the guardian's jagged tail. 

The yank made Knuckles wince in pain and yet again he tried with all his might to break free from the cylinders keeping him powerless with hands locked to the wall.

"Chaos dammit! Get away from me you bird brained scum bag I'll ---!" He stopped to grit his teeth for the incoming breach of his seed slicked tail hole when the fat head of Storm's member began to prod against him, slipping away a few times.

*FWASH* There was a bright flash and the men in the room gasped or yelled after the sudden occurence "Oh shit!" The echidna heard scrambling feet and shouts of "Let's get the fuck out of here!" And other equivalent phrases

What the hell was that? 

It sounded like a warp ring to Knuckles, and after that everything seemed eerily quiet after the ruckus of dingos fleeing from the lab. 

For some reason Storm let go of his tail and his cock tip backed away, inspiring the echidna's heart to skip a beat. Someone must be here to rescue him? 

That idea was shot down unfortunately when Scourge broke the silence. "Doc?! Wh-what'er you doin' back so soon?!"

"Oh no..." Knuckles's hopes were dashed on rocks, even though being rescued from such a scenario as this was insanely humiliating. Truthfully he would have taken his friends seeing him like this rather than Finitevus any day. But maybe there was hope in the evil doctor's return, perhaps he wouldn't approve of Scourge's antics.

"I do not need to give you reason as to why I returned, Scourge. You are my henchman, not a partner" The white echidna answered coldly as he sailed across the floor between Nack and Storm who stood still in fear. His body was cloaked by his black cape giving the appearance as if he was floating.

Knuckles, bent over at the wall with his semen dripping butt was naturally wishing he was invisible. But black and yellow eyes of the fearsome doctor drifted to the sight and locked onto it. " My my my..., what have I stumbled in upon here?"

That was it, it was time for Knuckles to break his silence. The echidna looked over his shoulder, shouting in a fit of rage "Your sick freak of a henchman forcefully mated with me and tried to get a platoon of dingoes to humiliate me!" He refused to use the word rape, because this occurrence was not going to break him down. 

" Is this how you treat you valuable prisoners of war?! I'm a Guardian god dammit! I'm revered and respected, I'm not a fucking toy!" 

But the white echidna watched with an unsettling grin as Knuckles thrashed in his bonds and yelled at him with vitriol. The red echidna's strength was returning, as Fini took note of the cylinders budging a little bit at this point. Scourge noticed this too and went off to grab the muscle relaxant, leaving Knuckles with the doctor and the ones known as Storm and Nack.

"Finitevus! Did you fucking hear me?! What do you have to say for this!?" The angered echidna started yelling again since he hadn't heard a reply from Finitevus yet.

Nack and Storm looked at each other and took the opportunity  to try to sneak out. Only they stopped stark still when the mad scientist looked their way, giving them the creeps.

"You two, stay with us. We've more work to do here"
Knuckles did not like the sound of that at all.

"You were standing behind him when I arrived" Fini addressed the fat albatross then asked "Did you get to finish?"

Storm feeling unsure, scratched the back of his head then answered rather rushed "N-no, I didn't even put it in him!" The feathered one shouted defensively, feeling as if he'd be in dire trouble if he did.

Yet the response he got from the white echidna surprised everyone in the room, especially Knuckles. "I see... Well then I suppose you're still next to breed with the guardian"

Said guardian felt his stomach drop when he heard that and he was soon thrashing again despite his weakened state. "No! Finitevus! Think about what you're doing, this is sick!"

"I got the shot, Doc" Scourge announced on his return and saw that Nack and Storm were still around.

"Give me that" Finitevus snatched the syringe and walked briskly over to Knuckles who flinched at the approaching foot steps, then yelped when the sharp prick of the needle was stuck into his right buttock. "Just a minuscule dose, because it's no fun without a little resistance" Said the doctor who stroked the red one's tail while pushing down the plunger a little.

Once it was removed Knuckles felt the serum working to keep his muscles weakened, his legs wobbling a little.

"Damn you ...Finitevus"

"Damn me all you want, child. I'm damned by Aurora herself and I am not fazed." He chuckled darkly then there was a beep as Knuckles found himself abruptly falling to the floor in a heap.

The doctor had just released his hands from the locked cylinders and let him collapse before backing away.

"Scourge, Nack." He addressed the hedgehog and weasel.
 "Take him to the examining table"