Two part fic. The first part is set halfway through the episode "Elaan of Troyius" and the second part set just after. At this stage Kirk is getting very annoyed with his failed attempts to civilize Elaan.

The Antidote

1.

Kirk to Spock

"Kirk to bridge"

"Bridge here, this is Mr Spock."

"Mr Spock I need you in my quarters now."

It was a common enough exchange, familiar and apparently innocuous to everyone else on the bridge at that time. A lot of the time it even proved to be a genuinely innocuous request. On this occasion however Spock raised an eyebrow to himself – he knew that tone in the captain's voice well enough, and knowing what it portended left the bridge immediately on the wave of deep rising feelings of irritation, curiosity and fiercely pooling lust. He never ceased to be surprised at how deeply the captain could rouse these feelings, even just by the tone of his voice. Spock was curious that he thought he could get away with it. Usually the insistent demand for the other person was his prerogative and he was still undecided by the time he reached the captain's quarters, whether or not he was going to humour him on this occasion.

When he walked in he was still faintly smirking, though this presented nothing more to the world than a faint upturning of the lips.

"Alright Mr Spock what's funny?" snapped kirk, swivelling irritably in his desk chair.

"Pardon me captain I was not aware I was presenting the appearance of humour."

"The hell with that Spock, I can read you like a book. An obvious book with no goddamn subtext."

"I take it negotiations are not going well Captain?"

"Remarkable deduction commander, they are not" Kirk stopped swivelling and jumped up, pacing irritably – "I can't make any headway with that suborn harpy! She won't even acknowledge my position let alone authority! I'm being made to feel like a fucking slave on my own fucking ship!"

"Captain may I ask if you summoned me here merely to rant and vent in my direction?"

Spock arched an intentionally provocative eyebrow and made as if to leave. He would never admit that he liked winding Kirk up, but – he did.

"Damnit Spock I haven't given you permission to leave yet!"

"I am aware of it "

"That's "I am aware of it captain" Spock"

"Captain, might I then postulate the theory that I was in fact summoned here so that you could reaffirm your status both to yourself and to a perceived subordinate?"

"Perceived? Spock are you trying to piss me off? You are obliged to follow my orders as my commanding officer, are you not?"

"Indeed – Captain" Spock has a hunch he knows where this is going and Kirk is now right up in his face, taking a firm grip of his shoulders that would be intolerable from anyone else.

"Good. Now suck my dick."

"Captain?"

"You heard me Spock, fucking suck my dick or I'll report you for insubordination."

Spock is half tempted to make a somewhat flippant comment as to the nature of such a report, but decides that he has already aggravated the captain enough and after all, having no objections to the order he permits Kirk to shove him to his knees. It is an unusual way round for things to go but Spock embraces diversity and as such will accept this role in their relationship is circumstances insist.

He looks up as Kirk twists a hand into his hair to yank his head back and it hurts in a particularly good way and the captain's face is a study in frustration and desire, the hazel eyes darkening and swirling as he smiles a grim smirk of satisfaction, unzipping his trousers and releasing his cock roughly, hard since he first summoned Spock to his quarters.

Spock's eyes sting a little with the pain to his head, but he takes firm hold of Kirk's hip in a rough caress as the captain drags his head forward. Spock looks directly at him, transferring the thought straight to his mind –

- remember I love you, always – a soothing thought that he wraps gently around his human's brain, cooling and stroking the anger and restlessness until Kirk strokes instead of pulls his hair , gently running his fingers down the side of Spock's face and caressing the edge of one ear, the red chaos of his thoughts calming into a gentle –

I'm sorry Spock, I was so frustrated, so annoyed, need you love, need you, god you're beautiful like this –

Before his thoughts break off as Spock takes his cock into his mouth, wrapping skilled fingers around the base, his tongue working with delicious slowness, Kirk still stroking him tenderly, thinking –

-So soft, so gentle, precious and mine, only mine. Nobody else gets to touch you, gets to see you like this and you're mine mine mine –

The beautiful eyes half closing in pleasure, his lips parting, little moans of relief and delight escaping him and Spock thinking back –

Beautiful yes yes yours always yours –

Because he always has been and he always will be and it excites him almost more than he could say to hear those possessive, proprietorial thoughts from Kirk and knowing that he is the one responsible for both those and for the Captain's mounting groans of satisfaction as he takes his cock deeper into his mouth and then throat. A growling -

"Fuuuuuck – Spock –" issuing from Kirk's lips and Spock unzips himself with one hand to release his own brutally hard cock, his eyes barely leaving the captain's face as he strokes himself to ecstasy, his own voice growling around Kirk's cock and providing that last bit of friction Kirk needs to be coming hard, aggressively fucking Spock's throat as he spills into it, Spock loving the taste and heat of him, and the captain's orgasm the catalyst for his own, awareness of the other's pleasure reverberating around the minds of both, drawing their shared climax out to its final shuddering conclusion.

Spock rests his head against Kirk's stomach as the human strokes his head affectionately, that smile that melts the Vulcan's heart playing across his lips. After a moment Spock begins to stand, though his knees are a little weak. Kirk helps him to his feet and holds him close for a moment, resting his head on Spock's shoulder while Spock strokes the spot on the back of his neck that makes him positively purr.

"I trust your problems have been adequately resolved captain?" Spock says gently with the ghost of a smile.

"Yes thank you commander, most – adequate – for the moment" Kirk murmurs into his neck.

For a moment they stay like that thinking only – time could just stop now please and I could hold you forever. Finally Spock sighs, not wanting to say but, after all, not really having to –

-I know Spock, you're on shift. You have to get back to the bridge.

Kirk lets him go and as they move apart he catches two of Spock's fingers with two of his own in a Vulcan kiss that lingers almost until they have parted to arm's length.

"Spock –" Kirk says, as Spock is at the door. Spock looks back –

-I know what you are going to say Captain –

And I know I do not need to say it for you to know.

- In that case –

I love you Spock.

Spock shakes his head gently, waves of the same sentiment flowing back from him all the same –

"Most illogical" he says with the raised eyebrow that means a smile.

_x_

Reviews would be loved – this is my first Spirk for TOS and also my first attempt at dominant Kirk – There is another chapter coming for the end of the episode in which the roles will be somewhat reversed! :-)