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James Kirk was a man renowned for his command and solid leadership, someone dependable and useful in any and all talks of human space directive. His command of the enterprise was something he was proud of, lived for , and it was something he knew he would never want to give up-
The point was, Kirk liked command, he enjoyed it, but even he needed breaks. Something to relieve him of his authority for even a few minutes every now and then. The problem was, even your most trusted crew would begin to doubt you if you started handing over control just because. If the job was something anyone could do, then anyone would begin to want to do it, and so Kirk had to find another way to take his breaks. Something more private, something more intimate, and with someone who he could trust completely.
Spock was an unexpected development, a welcome one, but one Kirk would not have asked on his own.
They started having their ‘breaks’ after Spock’s pon farr. The Vulcan had never actually completed the ‘mating’ part of his ritual, after everything that had happened, and because of this, he was left with some, other , side effects. Spock had found it made the most sense to inform Jim of his condition, and the captain, without thinking, offered to help him.
Things spiraled from there, and Spock turned out to be the best partner Jim could have asked for. Spock could take control, take Jim’s authority, and yet-
He was intimate , safe, and Jim could trust him with himself completely. He could wake up in Spock’s arms and walk away still being the captain of the enterprise. Spock did not actively want to take his position away, and he had no reason to divulge the secret nature of their relationship.
“Captain?” Spock nods, letting Jim’s door shut behind him before he is taking off his clothes and letting Kirk kiss the title off his lips.
Their relationship was comfortable, something Jim looked forward to, and when Spock sits down on the edge of his bed, with his clothes piled neatly on Jim’s desk, the captain slides easily between his legs.
Spock was gorgeous, his green blood giving his cock an inhuman tint, and Kirk lets his fingers trail over the length of it. The Vulcan’s body had become as familiar to him as his own, and Spock runs a hand through his hair when Kirk presses kisses against his thighs, against his tip.
“ Jim.” The Vulcan murmurs, voice breathy, and he frowns. The fingers in Kirk’s hair pull him closer, and Jim takes him obiedently into his mouth.
Spock is big, enough to make Kirk’s jaw ache around the length of him, and yet the captain finds he looks forward to the burn it leaves behind.
Spock's eyes are on him, tracking each twitch of his lips, the spit that rolls down his chin, and each bob of his head when he tries to take the Vulcan deeper into his throat.
Long fingers tug deliciously in Jim's hair, push him down until he gags , and the captain moans around the length in his throat.
This is the loss of control Jim had been chasing, the feeling of Spock's cock suffocating him, the knowing that his throat will be left an absolute wreck by the end of it.
Jim lets his eyes flick up, watering and half lidded to look at Spock's face.
The Vulcan's breath catches when he sees him, hands moving down to cup Kirk's cheeks and wipe the tears from his eyes with his thumbs.
The touch leaves Jim feeling electric, his own pleasure doubling when Spock presents his own upon Kirk's mind.
It was maddening, to use a Vulcan's touch telepathy like this, but god if it didn't leave Kirk dripping in his briefs-
“Is this satisfactory for you Jim?” Spock groans, the edges of his lips quirking up just slightly with his question.
Kirk didn't need to answer with anything more than the thought of a ‘yes.’ Spock already knew how he was feeling, could tell from the hands he had on Kirk's face and the cock he had lodged in Kirk's throat.
Jim pulled away to lick along the underside, from the base to the tip, and his hand came up to stroke along the inhuman length, to tease his thumb against the Vulcan's tip.
Spock raises a brow at him, hums around the buzz of their shared pleasure, and pulls Jim back against him.
The Vulcan fucks into his mouth, lets the feeling of it, the pleasure he feels roll into Jim's brain, and the captain all but sobs against him.
When Spock comes, Jim does to; a shared ecstasy between the two of them.
“You are the reason I am forced to look so suspicious when I go down to the laundry room.” Jim groans, getting up and staggering into Spock's hold when the Vulcan is forced to stand and catch him.
“My apologies, captain.” Spock responds, breathless when he helps Jim undress and crawl into bed with him.
They would worry about the mess in the morning.