Disclaimer: I don't own Star Trek or its characters. This is for entertainment and completely non-profit.

Warning: Contains a non-consentual mind meld. May also contain profanity and implied violence.

I am still new to this and learning where the lines between ratings fall. If you feel that this warrants an older rating, please feel free to PM me and let me know. If you don't tell me, I can't change it or learn.

This story is inspired by the events of the TOS episode 'Mirror mirror' (contains spoilers). I had originally planned to submit it under TOS, but since decided that I preferred to set it in the reboot universe. The characters and faces just call to me more.

Our minds are merging

McCoy had never been a religious man, instead choosing to live by his own set of morals and ethics. Leonard was an officer enlisted in Starfleet but his first and foremost loyalty was, and always would be, to himself and to those values. To him a patient was a patient; He refused to discriminate. It didn't matter if his patient was male or female, Vulcan, Andorian or human, from his universe or another.

The others had looked at him as if her was crazy when he'd asked them to help him get the other Spock onto the biobed. Maybe Leonard was crazy, but he was also a doctor, Dammit. He couldn't just stand there and let the man die, mirror universe or no mirror universe. Somewhere out there, his counterpart could be faced with the same situation. McCoy would hate to go back to their universe to find that their Spock was dead because he couldn't spare two minutes.

When he'd qualified as a Doctor, Leonard had taken a vow to do no harm. To him, a sin of omission was always just as bad as a sin of commission. By leaving Spock there to die, he might as well have been the one to hit him over the head in the first place. McCoy didn't think he would be able to live with the consequences, leaving the man there to die just to save his own ass. There were some lines in life that could be crossed but this was not one of them.

'Look, you get onto the transporter and make sure it's clear, I'll be there in five minutes.'

It didn't have to be an all or nothing situation. He still had time to fix Spock and make it to the transporter room in time for their return to the Enterprise. All the time they stood around arguing, time was being wasted. Every minute they argued was a minute he could have better-spent saving Spock's life. If he didn't hurry, he wouldn't have five minutes.

'No longer.' Jim's tone clearly said that he didn't like it but his friend knew him well enough to know that McCoy wasn't going to budge. The captain could have made it a direct order but their friendship would have never survived.

'I guarantee it.' McCoy agreed; he had no intention of getting stuck here on this barbaric ship. 'Now go on, please.' Leonard wasn't going to hang around any longer than necessary. It would take two minutes to stabilise Spock, just enough for the man to survive until his own physician could take over. McCoy would be fine.

Jim finally nodded, gesturing for Uhura and Scotty to go. The captain paused only to gently clap McCoy on the shoulder before following. The sickbay door slid shut behind them and Leonard was left alone with the mirror first officer.

Later, alone in his quarters, Leonard would regret his words. He wished he'd asked one them to stay but retrospect was a luxury he hadn't had. He was a doctor, not a fortune teller. He wasn't in the possession of a time machine either.

McCoy wasted no time in setting the dose on the hypospray then injecting it into the unconscious Vulcan. He let out a silent sigh as slowly each of the arrows on the monitor started to rise, displaying the stabilisation of Spock's vitals. The man would live.

McCoy was too busy watching the monitor to notice that Spock had woken. He should have had several more minutes before the drugs has had enough of an effect for the Commander to wake. Damn copper-based blood, screwing up his calculations. One minute the Vulcan was unconscious the next he was sitting on the biobed, tightly gripping McCoy's arm. The hand on his wrist was bruising.

The stare Spock gave him was so cold and logical. His face was completely emotionless, devoid from all the traces of expression McCoy had come to recognise from their own first officer. It was unsettling. Suddenly he was afraid.

'Why did the Captain let me live?' Spock demanded, his Slender fingers crushing McCoy's radius. Leonard panicked as he didn't know what to say. Who knew what this Spock would do if he learnt of the other dimensions, not just theirs but of Nero's as well. He pulled against the restraint but Spock's grip was too strong.

The other Spock, his Spock, was always so gentle, it was easy to forget what the first officer was truly capable of. It was easy to forget that even with his mixed heritage, the Vulcan was stronger, faster and in so many ways, evolutionarily better than plain old humans both in this universe and the other.

He instinctively took a step back but the Vulcan just came with him, forcing him backwards until there was no where else to go. The cold metal of the bulkhead was hard and unforgiving behind his back as Spock pinned him against it. McCoy was trapped, unable to move as the Vulcan raised his other hand. The fingers were like talons on a claw as they loomed over his face.

With a level of skill gained only from practice, Spock lay his pressed his finger tips strategically against the side of McCoy's face; one finger for each of the five major nerve clusters to the brain. M'Benga had once told McCoy that their finger tips had more sensory nerves than the inside of a dog's nose.

The touch itself was gentle but it could have been as rough as Spock liked for all McCoy cared. Vulcans were touch telepaths; he didn't want the bearded hob-goblin to touch him at all.

'Our minds are merging, Doctor.'

Leonard was frozen in place, unable to stop it. He could already feel it, an indescribable force fluttering against his thoughts. As Spock spoke, the force was pushing its way into his brain, burrowing into every corner.

'Our minds are one.'

No, Dammit. Leonard screamed, trying to force the other Spock out. Stop, Stop, Stop. It didn't stop though; the more McCoy struggled, the more he pushed. The pressure was excruciating. it felt like his head was going to explode but Spock just kept pushing.

'I feel what you feel.'

Disjointed memories spun around in his head. Not his memories, Spock's memories. Memories from the other Spock's life, of the other Enterprise with the other Jim and the other Leonard McCoy. Everything was accompanied by emotions that weren't his own. There was more though, overlying it all, he could hear the other Spock inside his head, laughing. He was enjoying it.

'I know what you know.'

McCoy couldn't help it. He could feel Spock rifling around, probing at his memories. He couldn't stop it. He couldn't not think. Stop, McCoy screamed over and over again, to himself and to Spock. He couldn't help the thoughts his fear dragged to the surface.

They didn't belong here.

Stop it!

They needed to go home.

Stop!

And just like that, Spock found what he was looking for.

Stop...

The sudden stillness was disorientating; as soon as Spock let go, his legs crumbled beneath him.

Leonard came to on the floor, slumped against the bulkhead. The intense pressure was gone but he could still feel the Vulcan in his head, prying into his private thoughts. Echoes of the force, reading every secret as if it were just a book on a shelf. The delight the man had taken in forcing the answer out of him. The power and control he'd had over him.

McCoy felt sick.

Spock was talking to him but all McCoy could hear was those words.

Our minds are merging...

Suddenly he was being roughly pulled to his feet and marched forwards. Just one foot after the other. It should have been simple but his legs felt like wet spaghetti. Only Spock's firm grip on his arm kept him on his feet and moving. Several times he stumbled but Spock each time the hands pulled him back upright. The corridors were a blur of missing memory. One minute they'd been in sickbay, the next they'd been in the transporter room.

McCoy blinked and then Spock was gone. Someone else had his other arm, Scotty maybe, and was leading him up onto the transporter pad. Spock was over there, talking to Jim. About what, Leonard did not care, he just wanted to get out of the damn hell hole, as far away from the bearded bastard as he could get.

It felt like ages before Jim finally stepped away. Surely they were running out of time? Wasn't that what Scotty had been telling them the entire time in sickbay? Then Jim was standing next to him and the transporter lights were swirling around them.

Just before they de-materialized, McCoy briefly picked that Scotty could have a mistake in the sequencing but suddenly the transporters didn't seem so bad any more. Then he realised that anywhere was better than there.

They were going home.