Kirk was already in his quarters when Spock arrived, not bothering to announce his presence before entering. The door closed behind him and Kirk was on his feet in an instant, his eyes narrowed and darker than Spock recalled seeing in weeks. It sent a hot flash of arousal through the Vulcan, the human almost glowing white hot in his anger. It occurred to Spock briefly that he had never seen Kirk react so strongly to anyone else.
"What the hell was that?" he hissed through gritted teeth. "Are you trying to get me to hit you?"
Indeed, Spock thought with some smugness. He did not answer, Kirk pacing towards him deliberately. Spock began cataloguing reactions and expressions to compare them with his other attempts at getting under Kirk's skin- but he found himself suddenly pushed, hard, against the wall of Kirk's room, the Captain bracing his hands either side of Spock's head and leaning in close to practically spit his words into the Vulcan's face- "You have no fucking idea, Spock, do you? You can't imagine a world where your logic and your fucking rituals mean nothing to anyone!"
Spock blinked, somewhat surprised by the turn of events unfolding. "I can assure you, Captain, that I am very much aware of my own culture's limited dispersion throughout the galaxy."
"Even more so since your precious little planet got all blown up, I guess."
"I would advise you against speaking about Vulcan in this manner." This was not going according to plan; Spock found he was becoming slightly emotionally compromised at both the proximity of his Captain and his words.
"You mean like how you spoke about my father? Well tough shit, Spock." Kirk pressed himself closer, his body hot against Spock's. His face was less than an inch from the Vulcan's, his breath warm on Spock's cheek. "I've had just about enough of you baiting me recently- what the fuck is going on? 'Cos honestly, it's not going to work, whatever it is you're doing. I'm Captain of this ship and I intend to be for as long as I can- whether or not you think I should be."
It was at this moment that Spock realised that Kirk was hard, his cock pressing almost painfully against Spock's thigh.
"I would not presume to know what Starfleet Command has in store for your- career-, Captain. However I will not allow you to make mistakes, nor to endanger the lives of your crew with your rash, ill-informed plans."
Kirk was suddenly, impossibly closer, his teeth almost grazing Spock's throat, his erection grinding mercilessly against Spock through their uniforms. "I think, Spock," he said, so quietly that Spock had to stop breathing to hear him properly, "I think that you get off on making me angry."
That is not the reason- Spock wanted to say, but he could not form the words, some part of his mind knowing that it was at least partially true, despite his grand plan to break the human. His own cock was responding to Kirk's insistent proximity, humiliating the Vulcan further.
This was not correct.
"And-" Kirk sneered at him, his voice deceptively soft as he spoke against Spock's neck. "I think that the only reason you involved my father in your little game is because you are all too aware of your own…shortcomings…regarding your parents."
"What do you mean by that?" Spock replied quietly.
"I mean that your mother died as you watched, Spock- and you just stood there, doing nothing-"
"That is enough-"
"Is it? I don't think it is, Spock. I think you could have saved her if you'd just tried a little harder- perhaps you didn't care enough to-"
Spock's head began to hum with rage, a blinding, painful cloud of noise and colour that he could barely think through; and before he was fully aware of his actions he had grabbed Kirk by the throat, pushing and turning until it was the human pinned against the wall like an insect in a display cabinet, Spock squeezing at his neck and snarling into his ear. "You will cease to talk." The blood pounded in his temples and his breath was harsh, roaring through his ears. His cock was painfully, achingly hard now, and Spock began to formulate a new plan.
He believes he has won this argument- I cannot allow it. I will break him- there are ways I have not explored as of yet.
A slow smirk spread across his features as he processed this thought, his grip on Kirk's neck lessening slightly so he could pull back to stare into the human's eyes, cold and unflinching.
"I intend to break you, human," Spock growled. "One way or another."
"That's what you've been doing?" Kirk huffed out a painful laugh, coughing with the effort. "All this time?"
"You are most stubborn," the Vulcan snarled, irritated by Kirk's response.
"Oh Commander, you have no idea." This time it was a real laugh, Spock's grip faltering for a second in his confusion at the human's lack of fear. "Do your worst."
"I fully intend to," Spock snarled, his eyes narrow, his lips thin with rage. "You will regret your words."
"When don't I?" Kirk replied with more than a touch of self-loathing, as Spock grabbed him by the shoulders and turned, pushing him bodily towards the bed and slamming him down onto it.
He began to tear Kirk's uniform from him, careless and savage, until the human was naked and breathless under him, his cock still achingly hard and his eyes wide with fear and more than a little arousal.
"What, you think fucking me will do the job? Please."
"I will assume that your words indicate permission. Regardless, I intend to continue."
Spock relished the way Kirk's breath hitched at that, his face clouded with confusion and lust. He could not hide his own arousal; Kirk was as beautiful as he was infuriating, his body almost begging to be devoured- and Spock had been denying his emotions for too long, the strain unbearable. He removed his own uniform, taking his time so that Kirk had a few moments to regret his words further, before he straddled the human and pinned his wrists to the bed deftly with one hand.