When Tails woke up that day, he expected to be in his bed in the old hangar-house he had by the sea, the smell of oil and grease always helping to rouse him with its bitter sting.  But then he saw the clean silver walls, the smell of oxide so different from his own and a fog swarming through his brain.
	"Uhhh...what, what happened, where am I-...wait, that smell it...only one scientist I know uses that dimorphous oxide."
Stumbling onto his feet, his red shoes clonked on the floor as he looked around the large metal cylinder he was trapped in.  His goggles shined off the top of his head, as the last thing he remembered was he had been on a scouting mission, searching for the Hidden Palace on West Side Island.
As he scanned his surroundings, he saw another body beside him, a soft turquoise kitsune with one icy blue tail, and a white belly shaped like a teardrop.  Both of them were around 8 or 10, the babyfat of early youth finally gone to give them boyish lean bodies with strapping lithe arms from months of hard handiwork.
	"Hey, are you alright?!" Tails tried to lift him up.
	"Nnngh...I...wh-where am-...you."
The kitsune pushed Tails away, clutching himself with a shiver as he looked around their prison with long drooping hair like icicles over his eyes.  Both of them wore shorts, Tails in blue and the kitsune in red.
	"Where...wh-where are we, who, MA'AM?!  M-miss Surge, where are you?!"
	"I remember you," the fox tried to approach, "you're Kit, Dr. Starline's helper."
	"And you," Kitsunami pointed, "you're S-sonic's little...friend."
	"Do you know why we're here?  Eggman trapped us both."
	"Yeah," the kitsune sniffed the chemical air, "dimorphous oxide, his favourite type, wh-where's...where's my hydro pack?!"
	"I don't know," Tails shrugged, "I woke up and found you."
	"Really?"  Kit balled up his fists.  "You know not to touch s-someone else's...t-t-tools."
	"Look at me," the fox spread his arms, "I don't have my belt, just my goggles, Eggman must have taken them off us-"
	"AHH, GOOD MORNING MY LITTLE FOXIES."
The doctor's voice came screeching through the speakers above them.  Both the young mechanics stared up at the windows, where they saw the vague shape of a moustached fiend.
	"I HOPE YOU TWO SLEPT WELL, IT'S BEEN SOME TIME SINCE I HAD GUESTS."
	"What do you want?!" Tails shouted.  "You know Sonic's gonna find me, and you're in big trouble!"
	"N-not if Ms. S-surge finds you first!" said the blue kitsune.  "W-wait...where is my, m-my hydro pack!"
	"OH, THAT WOULDN'T BE FUN NOW WOULD IT?!" boasted their captor.  "YOU WERE A LITTLE HARDER TO GRAB FOR HOW FIDGETY YOU ARE, KITSUNAMI, BUT REST ASSURED, YOU'LL HAVE YOUR CHANCE TO PROVE YOUR WORTH!"
A hole appeared in the centre of the room, offering a single toolbox on a pristine stand.
	"I THOUGHT THIS WOULD SOLVE AN ISSUE," said Eggman from above, "TWO FOXY LITTLE SCIENTISTS, BUT WHICH ONE OF YOU IS SMARTER!?"
	"What?" Kit snorted.  "Wh-why, you want to recruit us?"
	"Like we would ever work for you!" Tails added.  "We may be enemies, but we know you're even worse, right Kit-"
	"DON'T!"  The blue vulpine snapped with a fingerjab.  "D-don't...s-speak, for me, o-only Ms. Surge s-speaks for me!"
	"Alright, I didn't mean that, I mean that we both hate Eggman, right?!"
	"Mmm."
The kitsune marched over, stomping in yellow boots before slowing down when he reached the box.  Tails walked up beside him, taking one of his shoes off and tossing it at the kit to see it clatter harmlessly, satisfied it wasn't rigged.
Inside was a standard set of tools any mechanic would need, a dozen ratchets and wrenches with nuts and bolts and screws of various sizes.  There were also two belts, which both foxes took and stared at each other confused, before the walls suddenly came alive with dozens of holes that thunked open in a rhythm.  A slithering terror filled their ears as they stepped closer to the toolbox.
	"Wh-what, what, what is that?!" gasped Kit.
	"I don't know," Tails put back on his shoe, "sounds like...serpents?  No, I can hear the joints, it's something mechanical-"
	"Sixty-seven each, that...that's very long."
	"INDEED THEY ARE!" cackled Eggman.  "THIS IS A SPECIAL PRISON AND YOU ARE THE FIRST SUBJECTS TO BE TESTED FOR...A DIFFERENT METHOD OF SUBJUGATION!"
	"I-is it tickling?" whispered Kit.  "I hope not, I-i hate that, I HATE when people tickle me!"
	"Does that...happen a lot?" Tails looked back at him.
	"N-n-no, but, Dr. Starline caught someone once a-a-and...tickled him until he...h-he, suffocated."
	"You need a new employer, that sounds terrible."
	"He...h-he's not my...employer, anymore, I only...only care about...Ms. Surge."
	"NOW LET'S PLAY A LITTLE GAME!" said their captor from above.  "THERE ARE TWENTY-EIGHT TENTACLES AROUND YOU, ALL OF WHICH ARE VERY EAGER TO GRAB YOU FOR SOME DISASTROUS PLAYTIME!  WILL YOU WORK TOGETHER, OR ABANDON EACH OTHER TO TAKE THEM ALL DOWN WITH YOUR NECESSARY TOOLS?"
	"Fine, we'll show you!" Tails grabbed a wrench.  "Right, Kit?  Let's not give the doctor any fun!"
	"Mmm," the kitsune grabbed one in turn, "we take, h-half, don't get c-caught."
	"If you need help, just let me-"
	"I don't, n-need help from you, th-thanks."
Despite his polite tone, the biting snarl in the back of Kit's throat was clear to hear despite their similar ages.  Taking one of each tool in their hands, they braced themselves for the tentacles to come, shooting out the holes and slithering across the air to try and lunge for the two cubs.
Tails dove under the first one and searched for the joining rivets, grabbing on the steel worm and untwisting the bind as it doubled back on itself to try and latch on his arm, before it suddenly slumped.  The fox backflipped out of range and was almost caught by a second tendril, before he started flying with a twisting spin of his two tails.
High in the sky, he dodged past the other tentacles that searched for his body, the yellow cub flying further to start running alongside the wall and keep out their reach.  Once he found an opening, he dove down beneath one tendril and untwisted another rivet, loosening its joints to make it flop weaker.
	"HAH, no problem!" Tails smiled.  "Just a simple load-bearing, you're getting sloppy doctor!"
	"OHHOHOHO, YOU THINK SO TAILS?!" snickered Eggman.  "YOU OF ALL PUPS SHOULD NEVER KNOW NOT TO UNDERESTIMATE ME!"
	"It's worked pretty well so far!  Kit, are you okay?!"
The kitsune did not respond, other than a thumbs-up in brief acknowledgement when he dodged under a twisting tendril.  More of the slender serpents came for him as one wrapped round his leg, which he thwacked with a wrench before bashing its thin ridged head to make it release him.
Scurrying off, he slipped round the side and found the load-bearing joint to twist it off and cripple the tentacle.  As it fell dead, two more of its brethren lunged for him as he sideflipped, skidding under another to twist off its joint in turn.  Three more came rearing like cobras, as he took out a small bottle of cleaning alcohol that was in the belt.
	"Bottoms, U-U-UP!"
Cracking it open, he shook the liquid out, his other hand tensing up to make the alcohol rise and swirl around his body.  Seven strips of pale fluid formed behind his back, resembling the classical tails of a kitsune as the cub waited for the tendrils to strike.
The boy leapt with a sudden burst of water, the cleaning fluid turning almost solid to dig into the walls and seep through the cracks.  Kitsunami's body hung like a puppet, his mind focusing deep on controlling the water tails that scuttled around the wall, waiting for an opportunity to strike as the tentacles "stared" at him.
Then they striked, the kitsune jumping away with snap-and-pull launches of his hydro-tails while his pursuers crunched into the wall.  Jumping on one of the tentacles, Kit skidded down one of their backs like a grinding rail to do a drive-by loosening of its joints, causing it to crumple like a wet sock.
	"Hah, h-hah, good luck, f-fixing yourself out of that."
	"OHOHHH, INTERESTING CHOICE OF WORDS!" the doctor crowed.  "WHY DON'T WE DEMONSTRATE THE NEW MULTILOSSUS AND ITS ADAPTIVE REPAIR SYSTEM?!"
	"A-a...adaptive!?" Kit gasped.
	"Repairs?!" cried Tails.  "How can it repair, it doesn't have limbs!"
	"WELL, WONDER NO MORE, I-...DOH, BLAST!"
An explosion shuddered through the back of the facility.
	"I CAN NEVER HAVE A GOOD TIME TO MYSELF, HARQUIN, TAKE OVER!"
	"Yes, my doctor."

As the shadow of Eggman left, a new one took its place resembling a cobra who peered upon the two boys.  Harquin licked his fangs with a sinister smile, as he watched the tentacles crawl over each other to open their "heads", and slowly twist the joint-bearings back into place.
	"What the, they fix themselves?!" gasped Tails.
	"Of course," said their new watcher, "with that many limbs,  it would be foolish for it not to twist back a bolt here or two.  Any loosening they detect, as one singular hivemind, they will set about refastening them, and any other structural damages."
	"Wh-why are we HERE?!" shouted Kitsunami.  "Wh-what, what do you want?!"
	"Ohhh I want you two...but I know you two are such feisty little boys I need to tire you out first."
The tentacles grabbed each other's bolts and kept tightening them again, before lunging once more upon the foxes.  Tails kept flying with occasional jumps on their backs to rest his twin-tails, trying to conserve his energy as he leapt from steel back to steel head.
Kit was managing to evade the serpent hive by using his watery limbs, lashing onto the metal and scrabbling up walls before backflipping off onto the tangled nest to jump-skip over them, like hopping stones in a river.  But more and more came despite their best efforts, and soon a leg would be caught or an arm was wrapped in metal coils.
The foxes screamed as they were pulled into the depths, the tangled mess of slenderous vines embracing their bodies and slithering over their bellies.  With arms bound, staring up at the ceiling with their legs spread apart, the tentacles slipped down their shorts and exposed their flaccid cocks.
	"A-AAAH, NO!"
	"WH-WHAT ARE THEY DOING, S-STOP IT!"
	"Ohohohhh don't be shy," said Harquin tapping the glass, "why not help me run through their...subroutines?"
	"N-NNNGH, why are they doing this?!" shouted Tails.  "This is weird and, a-a-and, a-AAAIIIGH!"
They soon found out why, when a tentacle pressed its smooth head against the two-tailed fox's rump.  Both of them struggled in their restraints, the cubs' dangling members with tight young balls swishing back and forth as they watched the invasive lengths start pushing inside.
Kitsunami and Tails shared the same expression, like photo negatives of each other as they tightened their cheeks and squinted hard through their eyes with stiffening tails.  The blue fox felt his hydro-powers weaken, the alcohol-formed tails he had splashing off his back to fall over the tentacles cradling him.
The first few inches worming inside their holes felt cold and unsightly, the hard but flexible steel grinding against their walls that were so very tight.  The cubs shuddered with curling toes, the slight muscle in their arms straining at their most to try and resist as the tentacles pushed deeper and deeper, touching their most intimate parts for the first time.
	"AHH, A-AAAH!  S-STOP IT!" shouted Tails.  "S-STOP DOING THIS, I-IT, IT'S WRONG!"
	"Oh this is hardly the worst I'll do to you," said the doctor's assistant, "I'm just prepping you sweet young things for my personal use."
	"Y-YOU, Y-YOU'RE SICK-A-AAAH!" Kit screamed with spasming legs.  "I-IT HURTS, M-MISS SURGE, HELP, H-HEEELP ME!"
	"Rest assured you won't be getting help...not least until after I've had my...fun with you."
They could hear the lick of his lips in his sultry voice, a shudder of lust purring down the cobra's throat as he watched his Octolossus violate the two cubs.  The tendrils twisted round their limbs to keep bound, tight enough to make them tremble but without damaging the skin.  The thrusting spear in their holes were slickened up by a natural lubricant, only having to worry about stretching them good.
Then they found the prostate, punching with their heads to make the foxes squeak and gasp, their cocks forced erect much to their shame as they struggled even harder.  The heat of their bodies grew which seemed to excite the tendrils more, as one dove into their mouths each and made them suck like a gag.
Tails and Kit grimaced at the taste of cold steel, the lubricant a tasteless non-toxic form that swirled harmless down their throats.  Both their ends were getting spitroasted, pumped in alternating rhythms as the tentacles flipped their bodies belly-down to lift them high, impaled like a pig on a spit with gulping moans.
Harquin observed it all with a hissing cackle, sliding down his pants to pull out his own leathery cock and jerk eagerly to their molesting.  The tentacles were obedient, keeping it all in view of their master, who watched Tails and Kit have their holes speared open, a lovely furry gape of their pink puckers clenching, their tails twisting in spasms of great discomfort.
	"Hhhhh...yessssss...good little boys.  Since the day I first saw you on the video feeds from our scouts, I wanted to see those little rumps get used rightfully."
	"M-MMMPH!  MMMMPH, MMMRRRHH!"
	"Shhhh...don't fight it boys.  The more you fight, the harder things will get, and I'll make them stop if you submit to be my...special helpers."
Both of the mechanics, for various reasons, chose to fight back best they could.  The tendrils scraped harder into their walls, plucking the folds and throatfucking them deep enough they would start choking.  Harquin loved hearing boys choke on a fat dick, as he pumped faster in delight taking all the time he needed knowing that Eggman would be much too busy.  A few explosives in a harmless but difficult-to-reach sector, made sure of that.
The tentacles revved up their speed, feeling they had been stretched enough that they could bugger the boys faster with flexing stabs in their gut.  Kit was first to cum, giving out with a screaming moan as his cock throbbed with a dry orgasm, sputtering puffs with nothing in the tank for being so young.  Tails lasted annoyingly long, spinning his twin-tails in a desperate attempt to fly or yank himself free.
	"Ohohhh, what's this?" snickered Harquin.  "Such a fighter you are, no wonder you're Sonic's good friend.  Well...let's fix that, shall we?"
The vines of metal holding Kitsunami would move him towards his rival, dangling above Tails as the they pulled out of the blue cub's mouth and rear, before grabbing his azure tail.  The tentacles flipped Tails onto his back again, staring towards Kit who kicked weak against his attackers, as he was slowly pushed down on top of the cub.
	"GUH!" the tendril popped from the yellow fox's mouth.  "G-get, get off, s-stop, stop it you sick FREAK!"
	"P-p-please, Miss...S-surge," whimpered Kit, "h-help, m-make him stop, make him s-stop!"
	"Keep fighting!  Don't let him enjoy this, just keep fighting him Kit!"
	"Ohhhh but I AM enjoying it," said the snake deviant, "watching young boys struggle so hard to remain pure and innocent, before their eyes glaze over with obedience.  It's alright Tails...let your friend have fun with you."
The blue fox shook his head frantic, trying to pull himself away before he was impaled on his enemy's cock.  Tails groaned at the feeling, the loose furry ring sucking him by instinct into its depths, his tails spasming as the tentacle in his own ass flexed hard enough to make him buck into Kit.
Their faces twisted in a strange mix between regret and bliss, the two-tailed fox panting as his little balls smacked against Kit's rump, and before he knew it he was thrusting by a growing instinct caused by repeated pumping against his prostate.  Kitsunami moaned, cringing through his form but slowly becoming more used to the less intrusive cock of his archenemy, a cute little thing that rubbed into his folds.
	"M-MMMPH!  Haaah...n-n-no, it...f-f-feel...s-so weird, AAH!"
	"I-i know, it, MMMPH!" Tails clenched his fists.  "S-sorry, sorry I'm not, i-it's not me!"
	"I know, I...haaah, I-i know...mmmhhh..."
After the rough invasion of tentacles, a cub's pecker was much more preferable to Kit as he whimpered with an unconditional pleasure.  Like an internal massage, Tails' little meat was hitting all the right spots causing the blue cub to lose himself in the brief hiatus of bliss.
His partner impromptu was trying his hardest to pull back, the tightening quiver of his shaft signalling the end to his stamina.  Gritting his teeth as he trembled through his tails, the fox felt the tentacle still grinding his prostate and shooting him to his climax.  With a howling sob he came at last, nothing coming out but his climax evident as his cock spasmed in lust.
He struggled to make an apology, but his mind was too wracked in desire, the tendril pumping his ass suddenly picking up speed to "milk" him through his orgasm.  Kit sputtered with twitching eye, feeling another climax getting close when a tentacle slipped inside his hole, and wrapped around Tails' dick to both jerk one cub off, and fuck the other simultaneous.
	"Gooood, goood," shuddered the cobra pumping away, "haaaah...you'll learn your place soon enough my sweet cubs...long before anyone comes to help."

Hours would pass, as night-time fell upon Eggman's facility somewhere out in the Hill Top Zone.  Someone had cut off the cable cars that normally operated in the area, delaying Sonic by at least a minute more than his usual run.  Tails hadn't come back from his recon, which normally wouldn't worry such a free spirit as the blue hedgehog.
But a weather report had alerted him to thunderstorms coming over the region, something that terrified Tails to be out in.  Jumping from hill to hill, bursting through the low clouds as he zip-lined between peaks and turned into a sapphire bolt that bounced across peaks, he finally found a mysterious-looking steel peak.
	"Huh...was that always there?" he scritched his head.  "Feels like, someone snuck in an art museum and painted like a moustache on someone."
Suspicion brought him closer, rolling down a slope to launch himself across a misty valley.  Then he saw the moustache, on the side of the fake mountain with the mad doctor's insignia.
	"Oh come on egghead, you can't even HIDE in plain sight?  Jeez you're just asking me to bust up your plans if you're this stupid."
Vaulting off the peak, he landed on the facility's top and cracked open a vent, diving down the chute like a pinball that bing-bong-banged down the corridor full of fans.  Blades snapped off in his wake, gouges tearing through the steel before the ducts would twist into a spiral.
Halfway down the lab, Sonic heard the voice of Tails, a panting whine that echoed through the vents as he picked up his speed in a dead drop.  Falling straight down a large shaft, he slammed out of a grill and landed inside a giant steel room shaped like a cylinder.
	"TAILS, TAILS YOU HERE?!"
	"A-AAAH, AAAH!"
	"HEY, TAILS!" Sonic looked up at a window where shadows moved.  "Sorry I'm late, I know, usually not, you kicking butt up there?!"
	"Ohohhh, SOMEONE'S butt is getting kicked."
A wall slid open to reveal a large TV screen.  The blue blur gasped when a camera feed from the control room showed his friend Tails being fucked under a scientist, a cobra adult who sat on his knees impaling the fox cub on his thick pulsing shaft.  Beside him was a blue kitsune Sonic barely recognised, stroking off his friend and giving him hot frantic gay kisses.
	"T-...Tails, what...what's going on, what'd he do to you?!"
	"I simply taught your friend the best pleasure in life," said Harquin, "it took me a few hours so you only have yourself to blame, Sonic the Hedgehog."
	"This is...you sick little worm, where's the door at so I can knock-knock your face two floors back!?"
	"Oh don't worry, I'm not trapping you here...in fact, Tails will be rather glad to stay here as my...new assistant."
The cobra pulled Tails into a kiss, his forked tongue slithering deep in the fox's mouth with a hungry suckle as he kept fucking him.  Hands trailed down the fluffy belly, moaning as he pumped the boy faster in his lap and Kitsunami kept licking Tails' cheek.
	"Alright, STOP IT!" Sonic pointed at the screen.  "I dunno what you did to him, but I'll make your head spin sixty feet under once i dunk your creepy little face into the lava zone, and THEN Dr. Eggman's gonna crack after you!"
	"Ohohhhh, you think that bloated walrus was responsible?" the serpent snickered.  "No no, he's long gone already on an excursion, I'm in charge of this facility, with my new helper, isn't that right Tails?"
	"Y-yes," Tails whimpered, "yes Dr. Harquin...m-mmmph, please don't, d-don't stop, gimme more."
	"TAILS, HEY, DON'T SAY THAT!" the hog stomped his foot.  "I dunno what trick he put on you to turn you like this, but I'll fix it!"
	"Is that so?" the doctor moaned.  "Let me show you...what tricks I have."
The TV flickered to old footage of the past few hours.  Sonic watched in horror, at his friend and the unknown blue kitsune being molested every which way.  The Mobian viper demonstrated his experiments of the tentacles molesting the two, editing out the times they were in great distress or discomfort so the hedgehog only saw the purest abject lust from exhaustion.
Ravaged by steel coils until their holes remained open, the tentacles then put them into the control room for Harquin to have his turn.  So he would fuck Tails, mounting him like a mongrel in the street as he yanked on those two tails and ravaged him profusely.  The sound of his balls slapping the tight foxy rump echoed throughout the room, leaving Sonic more disgusted with increasing fervour.
Kitsunami was not safe either, but always made to kiss or fondle Tails when he was being used.  He could no longer speak, addled with cock and eyes glazed over, mumbling to himself with every thrust the serpent made.  Their holes dripped with cum, their cocks grinded against each other, and they kissed with such a zombified passion, that Sonic couldn't even see it as Tails, rather some sort of mindless doll impersonating him.
	"Don't worry," continued Harquin, "I'll let you have...the other one, he's not as...MMMPH, f-fun as Tails was.  Let me just...finish up inside-HA-AAAH!"
	"M-MMMPH, AAAH, D-DOCTOR, f-fill me again mister!"
The camera feed went back to the room, showing the cobra spurt into Tails' used rear, hot cum drooling down his knees as the fox spasmed with a dry orgasm.  The look of joy on Tails' face was unreal, his eyes dim and devoid of that intelligent spark as Harquin finished.
The cub sat on his new master's lap, bouncing cutely on the cock he now served that squished with little plaps.  The doctor snapped his fingers and pointed Kitsunami to leave, before pulling a lever to dump Sonic down a trap door that would shoot him out down the base of the mountain.
	"Ahhh...much better," the serpent kissed his new pet, "don't need that mangy hog bothering us now hmmm?  And your friend can enjoy being with him...second place begets second place after all."
He slipped his hand down to stroke off the boy, Tails giggling vapid between the smooches as he gasped when the cock in his rear flexed again.