Chapter Text
Jim woke slowly, his body sprawled over the entire bed. When Spock got up earlier than he did, his body instinctively moved to fill the empty space, as if he were seeking his missing partner. Spock’s morning absence didn’t bother him, though. After years of marriage (had it really been over four already?!), he was used to it. He fumbled around in the dim light, no doubt set at a level mathematically calculated by his husband in attempt to compromise between needing to see and the risk of waking up his human. It was unlike him to leave it on after leaving, however. Something must really be on Spock’s mind.
Either that, or he hadn’t really left yet. Jim took a peek at Spock’s old room, now their play room. No sign of Spock. Come to think of it, neither of them had stepped foot in it for nearly a month. With one thing and another, that aspect of their lives had gotten neglected. With today being what it was, he hoped that would change.
He finished getting ready and headed for the Bridge, his body on autopilot. Though atypical, it wasn’t the first time Spock had left the light on. Maybe he’d had a late morning and reasoned that Jim would be waking soon. Keeping the light on for a short period of time would conserve slightly more energy than turning it off and on because of…whatever. Spock things. Like his toothpaste bottle. It was too early for this shit. He stepped out of the turbolift, just in time for Alpha shift.
The sight of Nordeen standing tall in front up him, saluting smartly, stopped him short. “CAPTAIN KIRK!” he bellowed happily.
“Ensign,” Jim acknowledged. Nordeen recently graduated after three years at the Academy and had served on the ship for a few months. He was training with Sulu to take his place. Sulu had gotten promoted to captaincy on another ship, which meant he was also losing Chekov. They’d been together for a few years now, so the young man had requested a transfer as soon Sulu learned of his captaincy. While he hated to see them go, he was glad for their wonderful opportunity.
“I am told this is the best of days! We will sing the song for you!” Nordeen announced. The rest of the bridge crew – Sulu, Chekov, Spock, Uhura, Carol, and a few other Science personnel - stood at attention with amused looks on their faces. Nordeen never missed a chance to party. “Happy birthday to you, happy birthday to you…”
Jim smiled politely as they sang. He glanced over at Spock, who joined in, much to his surprise. He supposed he really shouldn’t be; Spock did like to sing, though generally he stuck to classics, not things as illogical as celebrating one’s birthday.
“Thanks, Nordeen, everyone,” Jim said when they finished. The crew refocused on their usual tasks. Jim knew that wouldn’t be the end of it. Nordeen and Uhura most likely arranged for a real party later.
After he settled into his chair, he reflected on their new recruit. After extensive testing, Starfleet determined that Nordeen possessed an extraordinary sense of direction, so they set him on a piloting track. He certainly had proven to be the best navigator on the ship; he was even able to navigate them through an asteroid field when most of the sensors were down.
However, he wasn’t sure that Nordeen belonged on the command team. While he did have some leadership skills, he also tended to be a loose cannon. The alien bluntly and freely said whatever was on his mind, and he did not seem to understand the need for caution in general. Yet, it was hard to have him on the bridge and be the only one excluded from command. Integrating him would be a challenge.
“Captain,” said Spock, appearing at his side. “I would like to have a meeting with you.”
“Very well, Mr. Spock,” said Jim. He stood up. “Sulu, you have the conn.” He followed Spock to the turbolift.
“Carol,” said Spock, and Carol took over his station.
They entered the turbolift. Spock hit the “Stop” button as soon as the doors were closed.
“Jim,” said Spock, his eyes getting the now familiar playful look. “Do you trust me?”
“Yes,” Jim said, confused. By his demeanor, he was initiating roleplay. “On duty, Spock?” Not that he was complaining. He mentally switched gears. Spock knew just what he wanted for his birthday!
“Something has come to my attention,” Spock said. “I believe a demonstration is in order.” He paused. “This is agent 31. Code: Freefall.”
Nothing happened.
“Put this on, and touch the doors the same time I do,” said Spock, handing him a black belt with flashing lights on it.
Jim obeyed, puzzled but curious. The doors opened back up to the bridge. Jim jerked back slightly. That was unusual, but it didn’t earn the gravity of Spock’s mood. He looked at Spock, not understanding. “You must be completely quiet,” Spock commanded. “Jim.” He indicated he should step out first.
Jim stepped lightly back onto the Bridge in the exaggerated “tip toe” walk. He glanced back at Spock, who moved with him, positioned much closer than professional. Jim froze, his eyes darting around. His keenly observant crew had taken no notice of them whatsoever. That was odd.
He met Spock’s knowing, confident, determined, playful gaze again. He was definitely up to something. Spock touched his arm, guiding him to the viewscreen in front of everyone, where, to Jim’s utter bemusement, still no one showed any signs of seeing them.
Take off your clothes excluding the belt, Spock ordered mentally through their bond.
On the bridge? Jim mouthed in disbelief, pumping with adrenaline at the thought. Sure, he’d fantasized it, but he didn’t think it would ever become reality. Was he dreaming?
Spock raised an eyebrow at his hesitance, daring him to disobey.
Jim thought back to Spock’s earlier query – Do you trust me? He took off his boots and socks, glancing around in confusion when no one seemed to have the least bit of concern over his atypical behavior. What was going on? He paused for a split second, then took off his command shirt. Whatever was going on, Spock seemed to be in complete control of it, and he was ordering to submit right here, on the bridge, on duty. The excitement, the naughtiness, and sheer exhibitionism of it aroused him. Hesitance gone, he stripped the rest of the way.
“THERE HE IS!!” shouted Nordeen. Jim jerked his head toward the newbie, heart pumping, but the alien was not looking at him at all. Instead, he was pointing at the constellation Leo. Jim glanced at everyone else, but though their eyes focused ahead, they still did not seem to see him.
“Yes, vat is right,” said Chekov.
Jim felt Spock’s hand on his shoulder. Focus on me, not them, he ordered. Jim met his eyes. How was Spock doing this? Some kind of Vulcan thing?
Bend over. Hands on the screen, Spock ordered.
Jim slowly obeyed, hyperaware that he was exposing his bare ass to the Bridge crew, on duty, no less. While it was evident they couldn’t see him, it didn’t reduce the sense of risk in the slightest. He felt Spock gently trace his hole. Jim’s cock swelled at the objectification and adrenaline of it all. Did Spock really have it all under control? Was he about to prove that to him? That he could have him even on the bridge, on duty, and get away with it? That no place, no time, was inaccessible to him?
Spock’s hand closed firmly around his cock. Jim knew from previous experience that if he misbehaved, Spock would squeeze to the point of discomfort. Spock was in full control now.
Spock took his time lubing him up – or at least, it seemed like it. Every second he spent with his ass exposed, submissive in Spock’s grip, felt like an eternity, his senses heighted in alert. Spock gently teased his cock head, and he could feel Spock’s cock rest on top of his ass as his dom continued to loosen and lube him. Unable to contain himself, he tried to turn to get another look at the crew – but Spock squeezed his cock before he could finish the movement. Jim straightened back toward the viewscreen, biting back a sound. Spock removed his fingers from his hole and poked teasingly at the opening with his cock.
“Do you smell something?” he heard Sulu wonder.
“Yes, there is something a bit odd, but I can’t place where it is coming from,” commented Chekov.
“Maybe run a maintenance check, just in case,” suggested Sulu.
“Aye, sir,” said Chekov. “We need to show –“
Another harsh squeeze on his cock abruptly diverted his attention from the conversation. If you do not focus on me, I will not allow you to come. This is your last warning.
Jim nodded and spread his legs submissively, heady. Spock pressed in firmly, and paused, once fully sheathed. He teased at Jim’s cockhead again while still keeping a good grip on him. Spock projected his satisfaction at dominating him on the bridge, in front of everyone, savoring the moment. Jim dropped further into subspace, feeling owned.
He bit his lips as Spock started quick, decisive thrusts. Spock’s cock burned inside of him, teasing him expertly. He’d certainly had enough practice over the years. A soft cloth touched the head of his penis, absorbing his precome. Unusual on Spock’s part, but he must not want to leave a mess. He quivered with the effort of staying in place for Spock.
Spock came with a quiet grunt, marking his territory. He breathed in Jim’s ear and gave his cock a few firm tugs. Come.
Jim came, spurting into the cloth. He kept still until Spock ordered him back up. Wordlessly, his first officer handed him his clothes and, once dressed, headed them back to the turbolift. Jim followed, still completely quiet until Spock indicated otherwise. His dom never ceased to surprise and amaze him. Certainly, this was proving to be one of his best birthdays ever.
“Agent 31, code freefall, deactivate,” said Spock. The doors closed.
“What just happened?” asked Jim.
“Your birthday surprise,” said Spock. “But I believe you are referring to the cloaking device.”
“Cloaking device?” Jim questioned.
“Yes.” Spock recounted the tale:
A few months ago, he stood by the turbolift, waiting for Nordeen to meet him for his first bridge duty shift. The alien, thankfully, was promptly on time, so they headed up together. “That is new!” Nordeen commented boisterously.
In a flash, Spock hit “Stop.” Their new recruit freely announced whatever observations he made. In the past, he’d noticed, and proclaimed, a few rather embarrassing things about Spock in front of the whole command team. He’d prefer to avoid a repeat of the experience. “What is new?”
However, Spock wasn’t the subject this time. “The lift! It shifted backward! It did not shift back the last time I was on the Enterprise! Is this a new modification? Why this lift, and not the others?” he wondered eagerly.
Spock frowned. He hadn’t noticed anything amiss, but given the ensign’s record, he didn’t think he should dismiss it out of hand. “Unknown.”
“We ask the crew!”
“No,” said Spock. Nordeen looked confused. Spock knew he struggled with the idea of keeping things “secret” but, he did understand a similar concept. “I wish to surprise them at a later date.”
“Aye, Spock!” Nordeen saluted.
Satisfied, Spock restarted the lift so the doors would open. He would keep this knowledge to himself until he had more information. There was no need to bother Jim with something as trivial as the turbolift’s subtle movement.
It took a few months before Spock fully discovered that the turbolift shifting backward was no trivial matter at all. The shift was deliberately programmed to accommodate a secret interface that appeared to be derived from Romulan technology. Thorough research revealed nothing of the sort logged in the Enterprise’s repair or upgrade logs. Also, the serial number on the interface did not match any known product on the market, or even on the black market, after Spock made numerous inquiries.
Deeply suspicious, Spock dug deeper until he was able to hack into Section 31’s network. It was there that he finally received the answers he was seeking. Due to the increased collaboration between Vulcans and Romulans (headed by his counterpart), Section 31 was able to get a hold of cloaking technology. They modified it to a small scale, borrowing the idea of one-way glass. This would enable their agents to covertly observe bridge activities.
“It is installed on every Starship in the fleet,” Spock explained, watching as Jim’s face morphed from incredulous shock to rage.
“Why? This is ridiculous! This breaks a thousand regs! I’m going to call them right now and –“
“Jim. I do not believe Starfleet Headquarters has any knowledge of this whatsoever. Section 31 operates on its own, independent of their leadership.”
“Why would Section 31 spy on us? Have they been spying on us?” Jim demanded.
“I am investigating whether there are any agents on board,” Spock assured him. “However, I believe their primary goal is to test the technology for usefulness in using it on enemy ships, rather than spying and reporting on us in particular. They are keeping it under tight wraps because they do not wish for the Klingons to get wind of it.”
Jim smashed his fist into the wall of the lift. “Not on my ship! We are not an experiment for them to toy with without consent!”
“I will, of course, deactivate it, if you wish. However, I believe a sound plan would be to leave it in working order to use as bait in case we do have an agent on board.”
Jim took a deep breath. “You’re right. We’ve got to nail that fucker who did this. Section 31 will not mess with my ship!”
“Deck 5,” said Spock, restarting the lift. Jim was clearly too incensed to return to the Bridge. They returned to their quarters in silence. Jim paced the room in agitation. He paused at the second place trophy on his bookshelf, smiling in memory. He and Spock had received it when competing against their counterparts at the BDSM club. All the way up to the end, they were ahead. However, Spock Prime, that rascal, had pulled a fast one at the end, beating them. That wily old fox.
“You’re right,” Jim said, his voice calmer. “We should ‘pull a Prime.’” He smiled to himself.
Spock raised his eyebrows. Jim had coined that phrase at the competition and used it ever since in regards to anything especially sneaky or dirty. “Then I will have the computer monitor the device and alert me when it is in use.”
“I still want a full investigation,” Jim said.
“Of course,” Spock agreed.
Jim paused, rewinding back to the Bridge. “Will they know we used it?” He unbuckled the belt, examining it as he spoke.
“I do not believe so, as I did not detect any kind of tracking or communication system on the device.”
“So, you discovered this, then instantly thought of how you could do me and get away with it?” Jim teased, looking back up at Spock. He offered Spock the belt, who accepted it and removed his own belt.
“If you define ‘instant’ as 17.1 seconds after my initial discovery, then yes,” Spock admitted. “It also occurred to me that your imminent birthday would be a fortuitous time to share my discovery with you.”
“So they couldn’t see us?” Jim inquired.
“As I said, it operates similar to one-way glass. The force field only obstructs the sight of the bridge crew. It does not block sound, smell, or touch. Whoever is using the field must be absolutely quiet and avoid contact with anyone. Also, the field only works on the bridge, within easy range of the device. While short excursions will not be noticeable, if an agent spent a long time in the field, it would eventually cause a noticeable drain in the ship’s power, raising suspicions.”
Suddenly, it all made sense. “And you didn’t tell me right away, because you wanted to surprise me.”
“I have noted your exhibitionist fantasy on many previous occasions. It seemed this was my best opportunity to grant it while still maintaining propriety. Your lack of knowledge of the force field would make it real for you.”
“And you thought it was hot too,” Jim said, poking him gently.
Spock didn’t deny it. “While the device is disquieting, it is not without positive uses.”
The comm interrupted them. “McCoy to Kirk.”
“Bones!” Jim exclaimed.
“You’re late for your physical!”
“What, no happy birthday?” Jim said in mock indignation.
“I’m a doctor, not a well-wisher! Get your butt down here!”
Ouch. He and Carol must be fighting. They’d been having some relationship trouble lately. Jim hoped they’d pull through, but he wasn’t sure that would happen. “Acknowledged,” Jim said mildly before cutting the connection. He turned to his husband. “Spock?”
“I shall accompany you,” he agreed.
Jim had barely stepped through the door and McCoy was scanning him already. Jim exchanged glances with Spock.
“Hells bells, Jim, what have you done to yourself now?!” McCoy asked grumpily.
“What do you mean?” Jim asked, genuinely confused.
“These readings. You’ve got some weird emissions from your skin. Invisible to the naked eye.” He turned to Spock, frowning and waving his tricorder over him too. “You have it too.” He waved it over himself. “But not me.”
Spock took a look at the readings. “I have a theory,” he said after a moment. “I believe the Romulan shielding technology left it.”
“What shielding technology?” McCoy wondered.
“Jim and I were just investigating it. I believe it is the cause of your abnormal readings.” He turned to Jim. “If correct, we now have a viable way to track our agent.”
In the end, they discovered the Section 31 agent was one of the new transfers. Jim relished outing him and banning him from the ship, taking special note of where he came from.
He didn’t care if Section 31 supposedly had Starfleet’s best interests at heart. He would not tolerate being used that way. He decided his own destiny. If someone wanted something from him, they would need his damn consent. He submitted to no one.
Except Spock, the man he loved.