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It was quiet. Dim, warm lights flickered along the bunker's ceiling, casting pale shadows in every direction. The low lighting caused the dark spots to be impossibly murky, enough to give anyone with even a semi-active imagination nightmares about what may lurk in the dark. The furniture was utilitarian, remnants of WWI with thick layers of dust to indicate their age. Everything was shades of beige or army green, meant not to please, but to serve its purpose.
Stone dropped his backpack in front of one of the metal lockers, then dropped down onto the single person bed in front of him. It had a sturdy metal frame, but the mattress was a sad excuse, more akin to a cot than anything. He sighed, the only noise in response being the buzzing of the lights.
A few months back, Robotnik had become obesessed with wartime cryptology, determined to create a truly unbreakable cipher. Stone poured over old books as the two of them would stay up researching the topic in the little free time they had. It was simply a passion project, but once the government caught wind of it, they too wanted a slice of the pie. And thus, Robotnik was now being told he had to create a cipher for Uncle Sam.
The silver lining, though, was that he could now authorize officially funded missions to get more information on his latest obsession. And authorize, he did. That's how Stone found himself in an antique bunker in the middle of Latvia, while Robotnik was back home overseas. It was supposed to be a short trip, and Robotnik was needed back home for important meetings (much to his chagrin), so he had sent Stone by himself.
But the trip hadn't been short. In his stop in London, which was supposed to be one night, he unexpectedly found himself being pulled for babysitting duty. There had been an important three day gala at G.U.N. headquarters arranged that was down a few body guards a week before the event. Not a problem, just pull the closest agents you can get your hands on! A disgruntled Stone had been ordered to attend as security, even after Robotnik tore the heads off of anyone involved he could get on the phone. It was all "oh, the order was from this department", and "have you tried calling my supervisors?" Thus, Stone attended, flights having been automatically moved to after the gala against his and Robotnik's will.
It went smoothly, and after the week and a half delay, Stone expected to board his flight, only to receive a call from headquarters requesting his immediate presence. An official who had attended the gala had been found dead that morning, and now everyone was required to provide statements. For another week, he was caught up in a whirlwind of rotating departments, giving his accounts of the night, verifying people who had been there, listening to paranoid supervisors prattle on about assassination. Another four days passed. The man had just been old. Robotnik's string of curses must have been something entirely new to the english language.
After nearly three weeks of delay, Stone boarded his plane to his destination. On his layover, it was announced the flight was cancelled due to weather. Another day went by. Finally, he arrived at his destination, sweet talking his way into back access at a historical site he certainly wasn't supposed to be in.
His boot steps echoed through the narrow hallways as he navigated with a flashlight, looking for the breaker. Robotnik's voice crackled through his watch, guiding him.
"Take a left at the next intersection, that should lead you straight to the control room. The breaker should be somewhere on the far right."
Stone made a hum of acknowledgment, doing as he was told and finding the breaker.
"Found it, Doctor." He affirmed, flashlight beam sweeping over the rows of small switches in front of him.
"Good," Robotnik said flatly, "flip the first, third, and sixth- we don't want any outside lights turning on and alerting someone you're in there. That should provide ample lighting to continue navigation."
As Stone flipped said switches, the overhead lights flickered to life above him. The lighting was warm, and dim, but his eyes quickly adjusted and he clicked off his flashlight. "All good, Doctor."
It was Robotnik's turn to hum in acknowledgment. "Good work. You've been on your feet for over sixteen hours now- go find a place to rest. I won't have you giving out on me."
Stone smiled, unseen. It was endearing to have Robotnik care about his wellbeing, however stringent he tried to sound. He made his way to the sleeping quarters as guided by Robotnik directions, perhaps a bit slower than necessary as he didn't want to stop hearing his voice. Alas, he made it to his destination, where he now sat in the deafening silence after Robotnik had hung up the call.
Stone moved to lay down on his side, grabbing the pillow he had pulled out of his backpack and tucking it underneath his head. He sighed again as he closed his eyes. He'd been on his feet day after day for the past few weeks, doing his least favorite thing: taking orders from anyone who wasn't Robotnik.
He considered how spoiled he was now. Back in the day, he had to take orders from any idiot who had managed to worm their way up the ranks simply because they'd been there longer, doing meager tasks for meaningless people. Once he had been exposed to the brilliant mind that was Robotnik, he never wanted to go back. His orders had purpose, and radiated with the authority that comes from actually deserving it. Serving the Doctor had a purpose, and he was damn good at it.
Robotnik had eventually pulled Stone from G.U.N.'s employ into his own. Alas, Robotnik was still employed by the government, as his exorbitant need for funding relied on. (So that's what he said, though Stone had long learned he worked for them in exchange for not serving a life sentence for treason. Robotnik knew how to party.) With the absolutely spotless operations record Stone boasted, every department wanted a piece of him, but he was entirely Robotnik's to have, mind and body. It always made Stone's heart flutter when he saw how fiercely Robotnik would take down anyone who dared to ask to send Stone on a mission.
The second Stone was out of Robotnik's sight, though, he was immediately pulled in every direction. That's how this bureaucratic nightmare had happened, trying to worm his way out of the situation while Robotnik was being hounded from every official back home for updates, blueprints, meetings, prototypes. Everything happened in such a whirlwind, and he was exhausted. He missed his Doctor.
Stone flipped onto his other side. Despite being exhausted, he was restless. An aching pang shot through his heart as he pictured throwing his arm around Robotnik and pulling him in close, kissing up his neck and hearing him sigh softly. He missed the feeling of his soft skin, the smell of his shampoo and his cologne. He missed the taste of his lips, the nip of his teeth, the way he dug his nails into Stone's back and dragged them down as Stone shoved him into the bed and-
He huffed, tossing onto his other side. He tried to think about something else. He sorted in his mind what he had done today, and what was to be done tomorrow. Robotnik would call him, and instruct him on where to go to find what he needed: a small physical cipher machine, and the files to go along with it. He'd call and tell him in that beautiful voice. Even over the phone, it had an effect on Stone, his deep and raspy yet elegant voice. The voice that commanded him, degraded him, praised him, called out his name when-
Stone grumbled, turning onto his stomach. Wrong choice. His half-hard cock shoved against the bed as he flopped down, causing him to hiss. He couldn't do this here. Not now. Not alone. Robotnik's words from when they had first gotten together flashed through his mind.
"No more 'self-maintenance' is allowed without me there to supervise, do you understand?" He had leaned in, and Stone drew in a breath with that memory, imagining his breath on his skin. "I am responsible for the upkeep of my property, and I am the only one who can make sure it is done fittingly."
It had been a long time since that was said, but there was never much of a need to recall it. The two of them were always together, and even during long periods of late nights working overtime where they were too tired to have any fun, they still would curl around each other in bed, and exchange kisses for encouragement throughout the day. They were always together. Never separated for more than a couple days, at most. Until now, purely by chance, too caught off guard and insanely busy to fix it as fast as they had wanted to.
Stone yearned for his warmth, his voice, his touch. He thought about being held under his piercing gaze, being analyzed by his brilliant mind. He shifted slightly, huffing again at the friction still evident in his boxers. He flipped onto his back, opening his eyes and staring at the ceiling. He rested his hands on his chest and tried to ignore his gut. The ceiling seemed to swirl in the low light and his eyes began to droop again.
An image flashed through his mind of Robotnik holding his wrists against his chest, restraining him while shoving his thigh against his crotch-
Stone sat up suddenly. He tapped his watch, navigating to the communications tab and dialing Robotnik. It rang only a couple times before the Doctor's voice broke the silence.
"What is it, Agent? I told you to call me in the morning. Need I remind you about the difference between midnight and eight AM-"
"Doctor," Stone started, unintentionally cutting him off, "I miss you."
Silence from the other end. Stone heard Robotnik draw in a breath and a soft clack, presumably from setting down whatever he had been holding.
"...Once you locate what I need, I'll get you on the fastest jet back home."
Back home. Stone's heart fluttered before he felt a soft pang in his gut. This was not going away. He was silent for a while before Robotnik said his name, calling him back to present.
"-some rest, Stone, you'll need it. This place is like a labyrinth." Stone could hear him drumming his fingers on the workbench.
Stone sighed, gearing up to embarrass himself. "Doctor... do you remember when you told me I couldn't perform any 'routine maintenance' on myself without your supervision?"
Robotnik burst into a low chuckle. "Oh, I see how it is, Agent- a couple weeks without me and you're just bursting at the seams with depravity?"
Stone huffed, but a smile tugged at the corners of his mouth. "...Something like that. Please?" He tried not to sound desperate as he reached down and rubbed against the front of his pants tentatively.
"So polite, Stone, yet you sound like a degenerate schoolboy," Robotnik quipped, and Stone could hear the delight in his voice, "I can see that heartrate of yours jumping."
That was precisely why Stone had shut the thought of disobeying Robotnik's order quite quickly, other than the adversion to disobeying him in the first place. With the watch Robotnik had made placed firmly on his wrist at all times, he had access to his vitals. He would have been able to see Stone's heartrate jump, or freaked out at the flattened vitals if Stone had taken it off.
"I'll be better focused tomorrow if you let me have this now, I'll sleep better," Stone tried to reason, his abject pleasure seeming to be no motivator to the Doctor when his desperate pleas were just as sublime, "you know how detrimental a foggy mind can be."
Robotnik sighed, and Stone imagined him at his workstation, coat off, head in one hand. "Mmm, you can get quite sidetracked when your perversions get the best of you-"
"I wasn't talking about me-"
"-and so, I suppose I can make concessions for you this one time."
Stone lit up, moving to ditch his pants with little elegance. He gave pause as Robotnik spoke again.
"Christ, Stone, I can practically hear that idiotic smile through the phone, keep your damn boxers on. I don't want you making a mess." Despite his mock annoyance, his words had no bite to them.
Stone sat back down on the bed, now just in his shirt and briefs. He pressed his palm against his crotch with a firm pressure, rolling his hips up and sighing deeply, shoulders relaxing at the tension being released.
Robotnik snorted. "I'm surprised you even asked for permission with how heady you are." He eyed Stone's vitals, picturing his strong forearms and how his adam's apple must have bobbed when he swallowed audibly through the phone. Tsk. Suddenly he wished he was home instead of at the lab.
"Of course, Doctor," Stone started, drinking in Robotnik's voice and letting it fan the flames, "I'd never disobey a direct order from you."
"Oh? Hands off yourself, then." Robotnik replied, hearing Stone's hands audibly drop to his sides along with a noise of betrayal.
Before Stone could begin to argue, Robotnik continued, "On your knees, on the bed. Get on your pillow and put those hips to work."
Stone complied with enthusiasm, scrambling onto the bed and shoving his pillow between his knees, thrusting his hips, starting off at already a fairly moderate pace. He was sat mostly upright, but his palms braced himself flat on the mattress. He sighed deeply with relief, tongue darting out to lick his lips.
"Good god Stone, you're disgusting- I can hear you tormenting that poor pillow already. Slow the fuck down." Robotnik snarled, and Stone's hips slowed to an agonizing grind accompanied by a grumble of protest. He curled his fingers and huffed in frustration, but didn't speak. He knew as far as the Doctor was concerned, he was already giving up far too much.
"Good boy," Robotnik started, pulling a whimper out of Stone in response, "now why don't you tell me all about what perverted little fantasy of yours got us here?"
"God, fuck-" Stone sighed, finally letting his mind wander, "I want to be home, I want to get dinner with you-"
Robotnik grinned and waved his hand dismissively, unseen, "Spare me the pleasantries, sycophant."
"-and then I want to get you in bed and give you a massage, I want to work my hands up your arms and down your back, I want to force all sorts of gorgeous little noises out of you," Stone rolled his hips particularly hard at the thought, taking a second to groan, "god damn, then I want to eat you out and fuck you all night long."
Robotnik turned his head away from the mic and breathed out hard into his palm, trying to smother the noise. His face was bright red, and he was glad Stone wasn't here to see. He knew it would give him an ego. He collected himself for a beat too long and knew Stone would notice, inflating his ego anyways, trying not to picture that stupid smile as he turned back to say, "You just can't fathom keeping those brutish hands off of me, can you?"
Stone pitched his hips forward faster as he hung his head and leaned over further, groaning. "I want to watch your back muscles tense as you brace your hands against the headboard- fuck- you take my cock so fucking well," he smiled, laughing slightly, "you're so fucking cute when you beg for it-"
"Careful, Agent," Robotnik warned harshly, "don't piss me off any further."
Stone simply smiled wider. "Then I want to flip you over, listen to you moan right into my my ear, and feel you dig your nails into my back- ah-" he keeled over entirely, forearm bracing against the bed as he shoved his other hand between himself and the pillow to create more friction.
"Masochist," Robotnik quipped, hearing Stone grunt in response to the entirely true accusation, "you like when I draw blood, don't you?"
"Fuck, yes," Stone grumbled, face shoved against the mattress, "keep talking, please."
Robotnik hummed in acknowledgment, shifting where he sat to try to adjust for the stirring he felt in his own briefs. "You're lucky I'm in a good mood and decided to show some kindness tonight. All things considered, I've been pretty pissed off and should've just left you begging."
Stone listened intently, letting his Doctor's voice wash over him while he chased his pleasure. He was close, breathing in short pants and whines.
"I ought to punish you when you get back, you know that? The audacity of you to ask for this, and my own foolishness to allow it... you've made me grow soft, Stone." Robotnik spoke in a harsh tone, but he was smiling wistfully.
The veiled admission of fondness from Robotnik's own lips was enough, and Stone managed a weak moan of Ivo's name before riding out his orgasm, pushing against himself bruisingly as his hips staggered. Robotnik breathed out slowly as he listened to his partner's whines of pleasure, wishing he could see him in this moment.
A beat passed as Stone turned over onto his back, eyes closed as he laid there, catching his breath. "Thank you, Doctor."
Robotnik huffed and rolled his eyes, smiling again only because Stone couldn't see him do it. "You best work with deadly efficiency tomorrow, find the cipher fast enough and you could be on a plane the next morning."
Stone laughed, bright and clear. "I will, and I'll change your schedule for the evening too. Say, maybe dinner?"
Robotnik rolled his eyes again. "With the purest of intentions, I assume. Get some sleep like I originally told you to, Agent."
"I will, I promise," Stone stood up and walked to retrieve his bag, fishing out a change of clothes, "goodnight, Doctor."
"Goodnight, Stone," Robotnik responded softly, "I'll see you soon."
The call ended, and it was quiet. Stone smiled. Robotnik seldom enjoyed exchanging I love yous over the phone, preferring the private sacredness of their own bedroom, quiet admissions that shook Stone's world every time. But the soft nature of that usually harsh voice was more telling than he'd ever know. Stone couldn't wait to get home.