Disclaimer: I own nothing... Only borrowing them for a ride...

Summary: When Wheeljack's latest invention go haywire in the middle of a battle, Starscream and Optimus Prime find themselves thrown in a completely different universe... One in which they both meet their worst nightmare.

A/N: This is from a RP I am currently doing with NightElfCrawler. SO it's still on the work^^ I'll try to post more chapters as they come along. But that shouldn't be too long between updates. In one evening we wrote 40 pages, can you believe it? We're apparently on a row XD

A/N 2: It's a crossover between Shattered Glass Universe and G1 Universe.

WARNINGS: Non-con, violence, torture, angst, adult and dark themes. That should cover it. So it is STRICTLY Mature/NC-17. I'm not responsible for anyone that's not adult who would read it...

EDIT: This story is now being Beta-d by The Starscream! Many thanks to her!

Chapter 2: Personal hells...

Optimus was looking around them with curiosity, his sharp optics taking in everything that surrounded them. Sometimes, he stumbled a bit when Sunstreaker shoved the butt of his gun into his back with a smirk and he had to bite back some groans. They were lead towards what looked like a large fortress and the Autobot symbol, purplish and familiar all the same, was standing proudly on the façade.

Starscream had fallen silent, more so observing their surroundings intently, trying to grasp what he had suspected. Everything was wrong…. Clearly whoever the idiot was who had sent them to this place had been tinkering with dimensions. As a scientist, he assumed that they had achieved the impossible and had entered a mirror world where everything was opposite…. or close to it.

An alternate reality, a place where some choices had changed the direction of all those in it…. he had theorized that it was possible, after all, Skywarp jumped through dimensions using his warp technology…. but to see it firsthand left his spark cold. He glanced sideways at Optimus, his expression grim for once.

Optimus had started to put together all the clues himself and he was thinking along the same lines as Starscream. They must have fallen into another dimension entirely... One in which everything was reversed and wrong, somehow.

But if everything here was opposite to what he was used to in his own dimension, then there was another Optimus Prime here that was... well, the equivalent of his Megatron, or even worse.

And that made it very frightening to think about…. even more so as they approached the citadel.

Standing at the gate, several burly autobots leered at them with interested looks and laughter.

"Well Prowl, what did you catch today?" A bulky black mech who looked suspiciously like Ironhide spoke up, smirking at the two.

Without warning, Prowl backhanded him sharply, sending him stumbling backwards.

"Silence. To your post. These are for Optimus Prime, not rabble like you, Ironhide."

Optimus was starting to feel dreadfully cold, his spark jumping in his chest as they got closer to the citadel. And that was not entirely due to the wrongness of it all... They were about to meet that other Prime and something was pulling at his spark. Another spark, almost like the feeling a sparkbond would produce. Or a twin bond...

He hadn't noticed he had considerably slowed when his personal guard shoved him forward roughly.

"Keep walking Scum!"

Optimus growled and shot the golden mech a hard look, but it merely made him laugh. His attention was drawn to Prowl again when he spoke up and backhanded that mech that looked a lot like Ironhide, nasty look put aside.

Ironhide... His oldest friend, and to see him like this... It was unnerving, to say the least. He resumed walking when he was shoved once again.

The chamber they were escorted into was grandiose, tall, massive and echoing… with an enormous autobot symbol in violet over the throne where it's owner would sit…. and so he was sitting, watching them approach with a very interested look in his crimson optics, an almost hungry gleam, though the rest of his face was unreadable.

"What have we here?"

"Sir, we obtained these mechs just outside the perimeter…."

And there he was. Optimus shuddered at the sight of his 'evil twin' as the humans would say.

He was dark purple and black, had red optics and the look in those optics... was the most disturbing he had ever seen in a mech. He was looking into a broken mirror and starring at his own personal nightmare. He stopped dead a few meters from the platform where the throne was but he was shoved forward again by a leering Sunstreaker, who said, cackling cruelly.

"Come on little mech, don't be shy!"

The pull to his spark was harder now and he had to fight it.

His mirror regarded him, saying nothing for a long while, then suddenly he rose.

"Out." He pointed to Prowl, who scowled back at him, opening his mouth to protest. "Do not make me repeat myself." The voice was soft, familiar, but there was a deadly edge to that sweet tone that made one's metallic skin crawl.

The black mech bowed his head slightly, then turned, leaving the two prisoners to their leader. Optimus turned back to regard his counterpart.

"So you are the disturbance in the Matrix."

Optimus shared a first look with his counterpart and felt a shudder run through him. He hid it and kept his optics calm and cold. So this was the Matrix he was feeling reacting with his spark... that made sense. He warily observed the other Prime and had forgotten all about Starscream being here too.

"You... I can feel your presence."

The seeker had noticed this as well, and was taking advantage of it, by slowly moving backwards in micro-increments as not to be noticed, while the black monolithic figure studied his counterpart. A slight dash of irritation reflected in his optics as he held Optimus' gaze.

"I do believe I just stated that." Was the calm, quiet, and identical voice to Optimus' own. But those crimson optics blazed brightly, dangerously. "How did you get here?"

Optimus couldn't help the glare to show in his optics. He really was tired of being called an idiot. He was confused by this all... He was still trying to gauge his evil counterpart as he followed his every move, his optics never leaving him.

"An accident is the best answer I can give you."

"An accident." Optimus purred, tone deceptively sweet as he slowly circled him, attention riveted on his counterpart. "I hazard a guess and say an accident of scientific proportions?"

"Indeed." Optimus replied, his tune sharp and his optics focused.

Wheeljack's invention, he thought to himself. He must have been tinkering with dimensions and warping technology. And Megatron's canon blast had something to do with it too.

"We never intended to come here. So maybe we could just leave peacefully and never speak of this anymore..." Ho, this wasn't going to work, he just knew it, but he was merely buying time.

That, of course, was the wrong answer.

Optimus's deep voice rang out with rich laughter as he circled to stop directly in front of him, optics narrow and glittering maliciously.

"Let you go…. peacefully even…."

Then quick as a flash, a gun appeared in his hand and a quick shot rang out, followed by a strangled pained scream from behind as the shot slammed square into Starscream's wing, right through the emblem, causing him to drop to his knees, optics wide.

"I think not, my dear counterpart. No this is an opportunity I don't think I could ever pass up again…. another version of myself….. however twisted he is."

Optimus couldn't do a thing, it happened way too fast, and he could just now stare at Starscream's curled up, whimpering form on the floor of the throne room. And it was now crystal clear to him: they will never leave this place alive. This Prime was worse then Megatron in his worst days. And they were under his every whims for now...

The kind Autobot Leader felt something from the other Prime's dark glee and cruelty through his very spark and he let out a little gasp, biting it back as soon as it came out. When he said those words, he knew he meant it, completely, and he was going to keep him for his own twisted reasons...

"Now then, the only question is…. what should I do with you?" He purred, regarding Optimus. "Hm… I think I have a few ideas. Kneel."

Optimus looked back, a dreaded feeling swelling in his tanks. He would not lower himself as to kneel in front of anyone! He still had his pride, so he answered coldly, his optics hardening some.

"No."

And that too, was the wrong answer. It was obvious that his counterpart was smiling behind his mask. Without warning, his gun aimed right at Optimus' knee and fired.

Optimus screamed in surprise and pain and he fell forward when he knee gave out under him. He crashed on his face at the other Prime's pedes and groaned in pain, his spark leaping in his casing.

The other Prime knelt down, grabbing his jaw by his facemask and forcing it up, his voice calm, sweet, saccharine almost.

"You will soon learn, my pet, that no one denies me what I want."

Optimus hissed in pain still and had to support his weight on his good leg. His counterpart was dangerous, even more then he thought and he had underestimated him. He answered through gritted dentals.

"I am... no one's... pet..."

The dark Prime just laughed again, optics glittering.

"Not yet…. Not yet…. but if there is one thing I enjoy, it is a challenge…. and you will most certainly provide me with that."

Straightening back up, he glanced at the shadows.

"Ratchet. Patch them up, and take this one to my interrogation chamber…." He nodded to Optimus, then thumbed at Starscream. "I do believe you have a thing for winged mechs….. do with him what you like."

oOo

Optimus tried to protest but he was pulled to his pedes by rough hands in no time and roughly pushed towards the exit. He distractedly noticed that his guard was Sunstreaker again and there was another with him. They were taken to the medbay and he almost gagged at the sight here. It looked more like a museum of horrors then a actual medbay, and Ratchet was looking at him with the most sadistic look he had ever seen in him, even in his worst days.

Starscream barely managed to get to his pedes before he was yanked to them by the other mech accompanying Sunstreaker, As he was brought into the medbay, his spark sank staring up at the numerous pointed objects, saws, laser scalpels and all other manners of torture hanging from the ceiling. A torture chamber more than a medbay….. he shrank back, spark pounding in fear as a soft chuckle sounded in his audial, a firm hand sliding down between his legs, caressing his codpiece fondly.

"Not liking this place, are you little flier?" His optics snapped up as he tried to wrench away from his guard, who simply dug his sharp claws into his shoulder, eliciting a gasp in return. "Don't get any ideas… I have a few of my own…."

Optimus just stared at all this and he felt the same fear rise inside him. In which mad world had they landed?... He was roughly pushed to a examination berth and made to sit there. Sunstreaker snickered at him and said, putting a hand roughly on Optimus's upper right tight.

"Maybe when Prime's bored of you he'll let me have a turn..."

"Ratch, where do you want this one…. or can I just slap salve on it and take it back to my room?"

Starscream cringed, scowling at the offending mech holding his shoulder, then glanced warily towards the medic, uncertain what to think.

Optimus looked back to where Starscream was seated and frowned, those mechs were all devious sadists... Every single one of them. He had to quickly return his attention back to Sunstreaker when his chin was grabbed and turned roughly.

"Hey, you pay attention to me, understood?"

Starscream watched as Optimus was put onto the berth, watching as the other assistant medics began to re-attach his leg, not bothering to use painkillers as they worked, nor doing a very good job, just enough to make the limb work again. The boss wanted him prepped, and he didn't like being kept waiting.

Ratchet had very little patience for morons and he always runs his medbay with an iron fist. He scolded at the lousy work the assistant was making of Optimus's leg but he had other matters to attend to. He did spare a moment to snap at the golden twin though.

"Keep your hands to yourself, Sunstreaker! This one's for the Prime."

He then returned his gaze to the seeker and had a devious smirk.

"As for you, you're all mine, seeker. But this wing needs patching up. it's ugly with a hole in the middle..."

Starscream barred his dentia at the medic, optics narrowing.

"No uglier than your face, Autobot." He snarled, spitting right in his face with oral lubricant. "I belong to no one! Least of all you"

That was not the wisest thing to do. Ratchet backhanded him hard enough to bust his lower lip and then grabbed his throat and squeezed.

"You don't seem to realize who's the fragging slave here, Seeker. Watch your glossa or I will cut it off."

He pushed him back on the berth and quickly tied him there. He went to gather a wielding torch and a small grinder to smoother the edges of the wound.

"Now lay still, it'll hurt a lot..."

Starscream gasped, head whipping about to the side, optics flashing at the strike, light dancing before him, and he struggled in the medic's grip, gasping for breath and kicking his pedes out as his arms were bound, thrashing as much as he could until he was forced down on the berth, optics smoldering with fury.

"I am NO one's slave!" He snarled, optics wide and panicked as he saw the grinder, vents spinning up faster in fear, frame heating as he tried to shy away.

Ratchet smiled widely as he slowly brought the grinder down on the wounded wing, his movement efficient but purposely slow and agonizingly thorough. He grinded the wound down to a smooth state ignoring his patient's screams.

Optimus, on the other side of the room, had been dragged to his feet by Sunstreaker and led out to his personal hell, the Prime's personal interrogation room.

Starscream's whole body tensed up, despite his best efforts, a gut-wrenching scream ripped out of his throat as the grinder contacted his injured wing, sparks flying as the metal frayed, peeling paint away as it stripped the wing clean of the score marks.

Ratchet whistled cheerfully as he finished with the grinder and then put it aside on the table. He smothered the hot, pulsating wound with a almost gentle hand and said, his voice silky and smooth.

"Are you going to behave now, little flier? If so, I can give you some painkiller for the rest of the operation."

Starscream's optics opened, bleary with cleanser as it streamed down his cheeks, focusing up on Ratchet with a sick feeling in his stomach. He had been through this more than once with Megatron…. sadly, he knew that sometimes you had to play the game… something Optimus didn't know how to do.

"Yes…." He whispered hoarsely, throat raw from screaming. He focused up on the medic, shuddering slightly.

Ratchet grinned at him, his cold red optics studying his form with what could only be qualified at lust. But the coldness in his look took over again when he gently rubbed a tear stained cheek, humming a bit.

"Now now, that wasn't so bad was it?" He took the wielding torch and a piece of metal to repair the hole, before applying it to the wing and said, grinning. "But you must know that I always lie, little flier."

The seeker's optics dimmed in realization, a shudder sweeping through his frame at the promise from the medic. Shuttering his optics, he grit his denta together and let out a low frustrated growl and a stream of obscenities about just where Ratchet could stick it.

"What a foul glossia you have! Tsk tsk tsk..."

He chided mockingly and chuckled, starting to weld the piece of metal over the hole in his wing. At the same time, he was running ghosting caress on the flat surface of the other wing gently.

The mixture of pain versus the tingles of pleasure that spread into his systems from the ghostly touches on his other wing sent mixed signals to the confused seeker, who arched in pain, panting and gasping as his frame heated up a low whimper escaping his throat.

"Beautiful, simply beautiful." Ratchet purred, stroking his face gently before he returned his attention to his wings.

He finished welding his wing shut and put him through more mixed feelings by slightly pinching the tip of the other wing and stroking it gently. He then put the tools aside and pressed a hand on the mech's codpiece, searching for the hidden latches and finding them easily.

"Let's see what you got down here, little seeker."

Starscream moaned in discomfort, the pain easing as he finished the work, his wings tingling with sensitive signals as they were stimulated by the medic's expert touch, his frame warming even more so when Ratchet touched his codpiece, he jumped slightly, optics widening as he squirmed his hips trying to escape…. but he had nowhere to go, and so when he felt the air hit his exposed port and spike, it sent a wash of cool air into his heating system that made everything start to tingle. Frag was his only thought as his spark pounded.

Ratchet unlatched the codpiece and looked at the exposed valve and spike with hungry optics. He used a claw to trace the rim of the valve before dipping a finger inside, stretching it. It felt all nice and wet and he grinned.

"Already all worked up I see. All the better for me..." The medic said and started to push in and out with that same digit, using his other hand to ghost light caress along his unwounded wing

Starscream gasped, breath hitching as Ratchet's fingers invaded his valve, the port constricting slightly as the fingers stretched him open, lubricant trickling down from the entrance around Ratchet's fingers, his wing sending stimulation through to his spike as it hardened and throbbed, stiffening from the ministrations.

"…Fr-fragger…. what are you going to do….. take what you want and frag me?"

Ratchet smirked down at him, using a second digit to stretch him wider as he fondled his wing lovingly. Fliers were his little weakness, he loved them and they were so easy to get riled up. He almost purred at the sight of his arousal and he was very close to taking what he wanted fully, but not just yet. He wanted him to beg for it...

"Ha, my little seeker, I'll take whatever I want... just as everyone else here."

"Great…." Starscream growled, squirming as a soft keening whimper escaped his throat as another digit entered his slick port, the walls constricting tighter in an eagerness his body felt that his processor did not. "You're just as sick and perverted as Megatron…."

"Please, don't insult me! I am nothing like that pit-spawned softsparked do-gooder!" He spat distastefully and locked his red optics on Starscream's prone form. "But if you keep insulting me this can just get kinky..." He chuckled and thrust yet another digit inside the slick, now wide valve.

Starscream grunted, facial plates heated as his port felt wide enough to burst…. frag… even Megatron wasn't that big…. and yet…. the prickles of his spike beading with transfluid made him whimper even more as he felt his spark pulsing faster, his body heated, betraying his thoughts as it enjoyed the treatment. He had to hand it to the medic…. he was skilled.

"…..From… your perspective… it would be a compliment." He hissed, grinning up at him. "And I'm guessing you can't hold a candle to what he has done…. his processor is far more creative than yours ever could be."

Ratchet laughed sadistically and looked at the young flier with a glint of pure madness in his optics.

"Is that a challenge, little flier? Well, I don't want to disappoint!" He suddenly retrieved his digits and went to shuffle through things on a shelf.

Then he had a satisfied exclamation and returned to him holding a electric rod.

"Let's see what you can handle."

He powered the rod and it crackled with electricity and then he shoved it up into his valve, watching with interest.

Oh slag…. was the only thing that crossed his processor as he watched Ratchet turn, his spark hitching in fear. Why oh why did he have to go and spout off like that…. Megatron would just go into a rage and hit him, not…. His scream cut off all other thoughts as his head snapped back, agony shooting up his whole frame as the electric rode slammed up his port, attacking the sensitive and stimulated interior of his port, every node and sensor exploding in pain.

Ratchet grinned evilly and sadistic glee crossed his optics at this. He thrust the rod deeper and kept it here for a few more moments before suddenly wrenching it out.

"Enjoying yourself? I hope because I know I am..."

He whistled cheerfully and went to the table's control panel to make it tilt so Starscream was almost on a vertical position. He then let his own panel snap open and release his hardened spike.

"Lets play more..."

The pitch of the seeker's vocaliser rose, painful in its shrieks as his optics whited out from the pain, and the only thing he could do was sag limply and unresisting as the rod was finally removed, little flickers of energy dancing over the liquid in his port, making him twitch as a whimper of pain escaped his vocaliser, optics wide as he stared down at the medic's exposed spike, cringing back in fear.

Ratchet took hold of the seeker's thin hips and took another step closer, his spike brushing against his exposed port as he leaned close enough so his lips brushed o his audio. He whispered silkily.

"Now, now, keep still, it won't hurt... too much." He snickered and thrust inside him in one swift motion, mewling in pleasure.

Starscream's optics snapped over to him, wide and dilated as he took a short breath in, just before the medic thrust in. The thrust against his super stimulated senses sent a mix of pleasure and pain slamming up into him and he arched against the medic, forcing his spike further up into his port as he did so, a whimper of pleasure and pain escaping his throat as he unconsciously moved his hips against him, the spike sending ripples through his system which just made him cry out more.

Ratchet started moving then, hard and fast, unforgiving for the mech pinned beneath him, and his red optics locked in the other red ones, full of sadism and cruelty and ferocious glee.

"You feel wonderfully tight little seeker. Almost like you had never been taken." He purred in a sultry tune and slammed his spike deeper, reaching the most recessed nodes.

Starscream's optics flashed in agony as a cry escaped his throat, each thrust slamming into him like a piledriver. Not taken….. frag, not like this… a gurgling cry of pain escaped his throat as his head rolled back, each thrust sending his frame into a closer reach for an overload, spark pulsing fast, frame hot and aching, cleanser streaming down his cheeks as the medic continued to pound into him, his own spike aching and throbbing painfully, desperate for release, but the pain keeping him from reaching it.

Ratchet reached his own overload after a few more violent thrusts and he immediately withdrew, aware that the seeker hadn't overloaded at all. He just looked at him all hot and bothered and chained up for anyone to take for a few moments. He then took a syringe on a nearby table and it was filled with an amber liquid, shining slightly.

"Alright, this will ease your pain, and make you recharge."

Starscream stood by his namesake as he screamed in frustration and agony, tears streaming down his cheeks as he felt the hot transfluid rush up into his port, the overload the medic experienced not shared with him as a pained cry of frustration escaped his throat as he pulled out, optics wide and unfocused as he writhed, cable throbbing, painfully, aching desperately for release, port tight, liquid splattered between his legs and dripping free as he tried to avoid the syringe, optics wide with alarm and fear, despite everything… needles were one thing he did not like one bit….

Ratchet took a hold of the seeker's head with an annoyed huff, and he finally managed to give him the shot. The reaction was immediate, usually, and he should already feel relief and sleepiness.

"Come on, that wasn't so bad. Just a little shot." He chuckled and waited for it to take effect.

Despite his struggles, Starscream moaned as he felt the sedative slip into his lines, his vision blurring as his frame began to relax, the throbbing between his legs easing, though the frustration still intense as he felt his awareness slipping away, though he tried to fight it, tried to cling to consciousness…. but the medic knew his work, and he slumped against the restraints.

Ratchet smiled at the now sleeping seeker and gently patted his cheek. He repaired him and realigned the nodes in his port before calling for the guards outside to come take the prisoner to his cell. For today he was done, but there will be lots of tomorrows, as those two weren't going to be leaving anytime soon.

oOo

Meanwhile...

The personal interrogation chamber of the Prime was nothing short of Hell itself. It was clean, since he enjoyed seeing how much damage he did with each new prisoner. But aside from that, it had more than a few frightening devices lining the walls, racks, chains, spreaders, a whole table full of tools to experiment with his victims…. and it was here that Optimus was brought and chained to the wall, arms and legs on short leashes, long enough so he could kneel if he chose, but his arms remained above his head, and he could not take more than a step forward.

Optimus looked around the room with wide, still slightly pained optics. This was what one could imagine seeing in a dungeon's torture chamber... He pulled on his restraints to test them, feeling horribly terrified for the first time in Vorns. He had never been this afraid of Megatron... Never. This Prime was... twisted in a way that made him completely unpredictable and utterly crazy.

And he waited, and waited, and waited more before he saw him, the dark Prime, walk into the room, casting him a look that sent shivers down his spinal unit. He had time to imagine and dread what was coming making him a nervous and twitchy wreck when he finally showed up after an unknown amount of time.

Naturally, Optimus was made to wait in this dark, dank place for quite some time before at last, the door opened and the other Prime stepped in, closing the door behind him, locking it casually, before striding towards his opposite, pausing just out of reach, optics gleaming.

"You look good in iron." He mused, a hand coming up to stroke his cheek gently, lightly tracing the seam where his mask was. "So defiant…. that will change, I promise you."

Optimus glared coldly at his counterpart, his optics hard and focused. He wrenched his face away with a growl and said, his voice firm despite his dire situation.

"I will not break under torture! I can take the pain... You will get nothing from me, Prime."

It was weird to say his own name with such disgust and anger.

"Torture, pain…. tsk tsk, Optimus, may I call you Optimus?" His counterpart said smoothly. "Who ever said I wanted anything from you?" His optics glittered as he dropped his hand to run down his chassis, pressing flat up against his windshield. "You speak of such terrible things… what do you take me for… oh…. that's right."

His hand tightened, fingers digging into the glass fixture, shattering it in one motion.

"Your Nemesis."

Optimus screamed in pain when the windshield glass was torn straight off and broken, it hurt like pit. He arched his back and twisted in his restraints, blue optics flaring brightly.

"Ha... S-Slagger..." He finally managed to grit out, biting his glossia to avoid making any more sounds.

"That's more like it." was the pleased response. "Scream… curse… show me your fight, for I wish to see just how long it will take me to break you."

He traced his hand down, running it along the edge of his windshield, picking glass free and tossing it aside, meticulously cleaning his victim… then his hand swept down to his codpiece and without any precursor, he ripped it off and tossed it aside, examining the merchandise.

Optimus gasped with every little bit of glass torn off, gulping and taking sharp little intakes of air through his vents.

"You... are crazy..." He spat and hissed at him, laterally.

He yelped and squirmed when his codpiece was torn off and tried to shy away from the probing digits.

"What... are you doing?"

"I have been told that before." was the cool response. "My preference is, mentally unique." He smirked slightly, optics glittering as he stared down at the apparatus now bare before him.

"I would have thought that a mech with my intellect would be aware of what I am doing." His fingers slid down, tracing around the rim of his exposed valve, tickling the sleek metal there, teasing but not penetrating … not yet.

Optimus twisted and squirmed to try to get away from the prodding digits, feeling his systems starting to heat up unwillingly. This was wrong... So, so wrong! He keened and hissed angrily at his counterpart.

"You sick fragger! Taking your twisted pleasure on a mech that cannot defend himself... How sad." He spat at him and glared darkly.

"You're right, of course." Optimus purred, optics snapping up to meet his counterpart's. "You are quite sad…. sad that you did not kill my men before they captured you. That is a travesty indeed…. for you."

He smirked, and thrust three large fingers straight up into his port, and widened them, curling them over and back to stretch the port open wide.

Optimus howled in pain at the intrusion and he shuddered hard, his chassis shaking madly. He tensed and arched his back, heat starting to crept up his plating and tingling all over him despite his effort to block it off.

"I... don't kill... unnecessarily... You slagger..."

He gritted his dental together and tightened his fists, but his spike started to harden too after some time and his port started to drip lubricant at the rough stimulation. He was stretched wider than he ever had been and it was hurting yet so disgustingly pleasurable... He had not taken any lover in a long time, his valve felt tighter then it should... He moaned at one point and arched back, his optics shining brightly.

"Pity." Was the amused response, fingers twisting sideways, watching his reaction intently. "There is an art to killing. Everyone has their breaking point…. some are harder to break than others, but you need only find their weakness."

He relaxed his fingers, pushing as deep as he could, massaging the port with a thumb, smirking as he watched his spike swell.

"I am betting yours is your pride…. your softsparked nature, am I right?"

Optimus was panting and let out a little whimper at the harsh and yet very pleasurable movements inside his now wet and slick valve continued. He twitched his hips to meet the motions and cursed himself for even responding.

"You are... crazy... Not worthy of the... title of... Prime..." He actually spat in the other's face and his optics half-closed at the harsh treatment he was getting.

"Ahhh but I am." He purred, barely blinking at the spit, using his other fingers to wipe them off, studying the spit, then brushing it right over Optimus' face in response. "You have no idea do you… pity…. perhaps I should show you…."

His chest plates parted and bright red roiling light spilled out before Optimus' optics, the other Prime's life force looking very different from his own…. fuming roiling energy of a deep amber red…. and there, set directly beside his ember, was a deep red sphere of flickering black and red energy, hungrily reaching out, snapping energy greedily as it got it.

"This…. my dear Prime… is my Matrix."

Optimus blinked at the sight, and felt sick to his tank. This looked sick and twisted... His very spark looked like it was infected with some sort of madness. And this Matrix... was nothing like what it should be. He gritted his dentals together and looked at it, disgusted and fascinated. The pleasure he was forced to endure and the pain still shooting through him from his widely stretched port did not help the matter and he hissed, turning his head away, red light bathing his form.

"This place... is completely twisted... And you are the worst of the lot..." This sounded weak and lame to his own audio but he felt like he was very tired suddenly. But still, he wouldn't concede anything to this fragger, ever.

A dark smirk spread over the other Prime's features as he watched Optimus regard his spark.

"From your point of view, I suppose that is the case." He closed up his internals, casually dusting off his shoulders. "But from my perspective, it is you who needs enlightenment into the reality of this world…. and to show me just how fun 'playing with myself' can be." He grinned darkly. "Now…. are you going to behave? Or will I have to do this the hard way?"

Optimus glared at him darkly, his optics cold and hard as he tightened his fists. He was now relieved that the other Prime had taken his digits out of him and he slumped in the chains, still hot and bothered though. His hardened spike was throbbing with need between his legs but he did his best to ignore it.

"I won't give you anything. You can go to the Pit." He was still feeling all hot and bothered from the work done on him but his loathing and fear were tempering his arousal somehow. "Do your worst."

"The Pit?" He mused. "Interesting… you must mean Oblivion…." He smirked. "Very well then, the hard way it is."

He turned around, picking up a pair of metal clamps from his table and approaching him. Without any hesitation, he ripped his face mask off, then drove the clamps between his lips and teeth and wrenched them open wide, clamping it open.

Optimus had no time to process what was going on when his mouth was wrenched open wide enough to hurt. He could only stare at his tormentor and wonder what else he had in store for him. He made some gurgling noise in the back of his throat from the very uncomfortable position he was in. A cold feeling swept over him and he followed the mech's movements intensely, arousal still there but pushed to the back of his processor.

The other Prime smirked at him, and carefully approached.

"Can't have you biting now…" He purred, holding up a plastic and foam inset, which he slipped over his denta, top and bottom, while his mouth was wrenched open.

Then, using an adhesive, he bonded the protective plating to his denta directly… two mouth guards that were soft and pliable.

"I wouldn't like you getting a taste of something you shouldn't….."

Once the plastic was in place, he removed the clamps and stepped back. The plastic would make it impossible for him to bite down and do any damage on anything…. but still allowed him to talk.

Optimus was panting and reeling at the feeling of the foreign object wrenched into his mouth. It tasted foul, plastic, and it made moving his jaw difficult. He glared at his counterpart and did try to bite him but it had no effect. A torture device, and most efficient at that... He already felt very uncomfortable.

"I won't break so easily."

The smile on Optimus' face was almost gleeful.

"Oh… that's just a protection for me." He purred, lightly tracing his jaw, lifting it up slightly.

Then he dropped it, turned around and lowered the chains so that Optimus was kneeling, arms taut, ankles bound to the floor so he couldn't stand, then he turned and grabbed a tall stool, and pulled it over to sit right in front of Optimus, and removed his own codpiece, his spike erect and large, and right in front of Optimus' face as he smirked down at him.

"Now, my dear counterpart…. Let us see how skilled you are. I will offer you an incentive to do a good job…. if you perform to my satisfaction, I will permit you a break… with energon and conversation…. if you do not… we shall continue until you drop dead of exhaustion, and then I shall leave you until you are ready to continue…. it is your choice which path you choose. Either way, you will be doing what I want."

Optimus looked up from his crouched position and he pulled at the restraints, testing them again. He was in a position that wouldn't permit him to break free even if he wanted. His shoulders were already aching slightly. He hissed at his counterpart with real hate and loathing, rarely Optimus had ever felt like that about anyone, not even Megatron. This was unnerving... He was losing his cool. He stared at the other's now exposed spike and felt his tank roll and churn threateningly. He didn't move and glared up.

"I'm not your whore..."

"Yes. You are." Was the cold response, amusement gone in a blink. "Now, you can do this your way…. or mine. I assure you… you will not enjoy my way." He pointed down. "Now. Suck it."

Optimus glared coldly and tugged at the restraints again, but now he was quite sure that the other Prime would be capable of doing some terrible things to him if he kept being stubborn. But still... Optimus's principles were so deeply anchored in his core programming that they sometimes override common sense.

"Frag you."

"Very well." He smirked. "My way it is."

He slid closer, then grabbed his head, and forced it downwards, and thrust his spike up into his mouth forcibly, forcing his head down so it filled his whole mouth.

"You will perform." He ordered directly. "Or I will make the seeker do this to you."

Optimus gagged when he was so roughly filled and he fought the urge to purge. He glared up at his counterpart and his optics were stained with some tears streaming down his cheeks. He couldn't keep everything in and he was mad at himself for it. He started to slowly suck on the spike in his mouth, not wanting to get Starscream involved here at all... This was the most degrading thing he ever had to endure...

"That's it…" Optimus crooned, petting his helm gently as he arched into his mouth, moving with his sucking motions, twisting his spike slightly to enjoy the full sensation of lips sucking his spike.

A little glossia, a little more enthusiasm, and he could be trained to be a very good pet. He forced his head down harder, moving and thrusting into his mouth, growling in feral pleasure as his thrusts grew harder.

Optimus sucked harder and moved his head up and down, feeling the other move too, and he was fighting to urge to bite down. That wouldn't serve anything with the thing in his mouth. He was almost forced to use his glossia as it was in the way anyway, but no one said he had to enjoy it. He was feeling dirty and tainted in a way that could never be cleaned.

Whether or not he did the job the best, it was sufficient, as Optimus's claws dug into his helm, pushing down as he roared a voracious snarl as his overload hit, transfluid exploding in Optimus's mouth as he climaxed, arching and shaking slightly, optics glowing like hellfire themselves until it passed, then he relaxed, and smiled down at Optimus, stroking his helm gently.

"There….. that wasn't so bad was it… You did a very good job, my pet." He purred, pulling out of his mouth and tidily wiping his spike and lower regions off. "Very good… you learn quickly."

Optimus swallowed quickly but not everything got down and he had stains on his mouth, chin and upper torso. He would like to wipe it off but he was incapable of even moving right now. He bristled some at the use of the designation 'pet', and he was sure he would never get used to it. Ever. He didn't grace the dark Prime with an answer.

Prime stood, re-attaching his codpiece, but not Optimus's and smiled over at him.

"Since you finally learned your place… I will relent a little….." He reached over onto his table, coming back with what looked like a fancy electric collar, and slid it around Optimus's neck, clicking it into place where it locked, a tingle of energy showing it was more than just a symbol. "Don't try anything with this little beauty or you will find yourself flat on your back before you can pray to Primus." He purred. "Have fun…. rest while you can."

He pushed a button on the wall, and the whole wall began to rotate with Optimus in it, turning around until it was in a small, dark and windowless cell. His chains released so he could move around, still attached to him, but allowing him access to move….. Prime smirked.

"Ratchet, bring our other guest to keep my pet company…. we will resume their training tomorrow after a recharge."

Optimus was still fuming at the fragging word and he glared at his counterpart, feeling like he had been stomped over a few times by Omega Supreme. He was filthy, tired and utterly drained. He got to sit in a corner of the cell facing the closed metallic door and slipped into an half-recharge.

-TBC-