Summary: When Pon Farr hits, Jim helps Spock through it; but he didn't expect to get caught up in the passion so extremly...

Warnings: Occasionally agressive sex, bordering on dub-con; potential dom/sub, top/bottom switches. Alll in all PWP

It was the most stupid frustrating thing Jim had ever experienced.

When he and Spock had become lovers, he had promised the man to be there for him, whatever difficulties they might encounter…and now, at the first speed bump, Spock suddenly wanted to shut him out.

Well, Jim would have understood it had he been a usual human, Vulcan strength was always enough to overpower a human and in this crazy mating-season, when pure lust switched off every sense of usual Vulcan control and left them mindless except for the thought of having sex said strength might prove too much for human stamina….and no, Jim didn't get why he'd been locked out.

His stamina had always been extraordinary. And now that he had Khan's blood strengthening his body and heightening his stamina in every sense of the word, he figured if anybody could handle a sex-crazed Vulcan….

And that was why now, two days after the Symptoms of the Pon Farr had started, Jim T Kirk, with a bottle of lube stuffed into his pocket, opened the door Spock's quarters and locked it behind him. The shower was on – an actual water one for a change – and Jim used the time for preparation, took the blankets of the bed and cleared the table of the Padds Spock had scattered all over it.

The water was switched off. Jim stepped away from the desk – he'd use it, probably, but there was no reason to risk being thrown all over it the second Spock saw him – and waited in the rooms middle while Spock dried himself off behind this door…

…and then, the door opened and his lover stepped out, wearing nothing but a towel and a slight flush.

Spock took a few steps, the bathroom door swished close…and then, he saw Jim and immediately froze, his eyes huge and shocked…and then, his pupils dilated. His muscles became tense, coiling readily and the towel started to bulge when he grew hard…only from seeing him…

Jim was a lucky man.

"A sight to behold you are, commander," he remarked, cockily putting his arms akimbo, eyes sliding down the dry body, smooth, powerful lines, skin that would be perfectly creamy was it not for the green patches where it had flushed.

Spock only stared at him wide-eyed, muscles fluttering from the effort of holding still. "What are you…it's too dangerous for…why are you here?"

"What do you think, baby?" Jim's grin widened a fraction, became seductive. "'M here to help you out.

"J…Jim."

Stuttering. He had never heard his perfect Vulcan stuttering – when not mid-orgasm, of course – and the small stammer went from his ears straight to his groin.

Grinning, perfectly knowing that his lover could see his arousal, hear it in his breath pattern, probably even smell it thanks to those weird, alien senses, he opened his arms. His voice was already husky and thick when he whispered, "Come."

Spock's posture changed so fast he almost couldn't follow. He ducked like an animal ready to attack, those long, lean, but incredibly powerful muscles tensed, his teeth showed in an unconscious snarl…and then, he pounced.

Despite his enhanced strength, Jim stumbled when a good hundred-fifty pounds of powerful Vulcan muscles crashed into him. Spock took his chance to throw him against the next-best wall, hard enough to hurt. Before Jim could regain his breath, Spock was pressed flush against him, fingers digging into his shoulders, mouth and teeth attacking Jim's face and neck with the ferocity of a blood-hungry, starved animal.

Or with the ferocity of a Vulcan in heat who had put it off for too long, that was.

Hands pawed at his tunic's hem, dragging it upwards. Jim gave up his grip on Spock's waist and neck in favor of raising his arms above his head, allowing his lover to pull both shirts over his head in one go. He swore he could hear some seams ripping and it kinda hurt when they got caught at chin and nose, but was too far gone to care.

As soon as the offending barrier was out of the way, Spock was back, leaning against Jim with his full weight….and that was when it happened.

It was a physical sensation first, burning heat from the Vulcan's skin against his own, before it became mental too. A hot wave rushed through their link into his mind, undefined at first, then slowly becoming something….wild, consuming, animalistic…. frustration, hunger….lust.

Spock had warned Jim about this. Emotional transfer between partners, even when not officially bonded, could be a side-effect of Pon Farr, too.

Well, too late now.

He had the time to wonder if his poor lover had felt like that non-stop for the past days, then the wave tore him away, left no more room for thought, only for feelgettighttake…

Jim's nails raked down the bare back of the man holding him flush against the wall, dug his fingers into the hollows under his shoulder blades. Spock's teeth graced his jaw, down his throat to bury themselves in the soft flesh where the neck became the shoulder, the Vulcan's breath like a gush of desert wind, saliva tracing burning lines on his skin.

Moaning deeply, Jim returned the favor by nipping at the his earlobes, dragging his tongue all the way up the tip and back, sucking at the sensitive spot at the bone right behind it on his way. Spock groaned and drove his hips forward, pressing their groins together in an unconscious, feral rhythm. The towel around his hips loosened and finally fell, leaving the Vulcan fully naked.

Well, even when not influenced by Vulcan hormones, Jim would never let this opportunity pass. And he certainly was not about to do so now.

One hand left Spock's back and sneaked between them, closing firmly around his base, then moved upward to the tip and back down in torturously slow strokes, the other hand came down, clawing into one of Spock's firm buttocks, pressing him hard against Jim's body and blocking him whenever he wanted to move faster than Jim would allow. Spock moaned huskily and pressed himself impossibly closer.

Grinning, Jim lowered his head to press a sloppy, open, toothy kiss to Spock's neck, simultaneously letting his wrist performing a wicked twist. Spock shivered and moaned again, his own hands wandering down to Jim's groin, pawing at the prominent bulge. The other arm sneaked around Jim's waist and began to wriggle into his pants.

The action caused the belt to pull tight, almost uncomfortably pressing against Jim's stomach, but Spock managed, hand massaging the cheeks as good as possible for a moment before two fingers slid down the crack between, tips greedily rubbing and prodding his hole…and that was when it happened.

He was not sure if the hunger for domination came from Spock or from him – or, even worse, from Khan – he only knew that it was there. Had he been in his clear mind, he would maybe have thought about it, but like this, caught in his own and the Vulcan's finally unrestrained lust, he didn't think, He knew.

He would surrender eventually, let Spock screw him as much as he wanted…but this was his ship. His First Officer. He was the captain.

The first time would be his.