Archive of Our Own ^beta

Chapter Text

Robotnik wasn’t an idiot—far from it, in fact. He knew how Agent Stone looked at him, saw the desire and lust in his gaze that he probably thought wasn’t obvious. The agent practically screamed desperation every time they were together, which was increasingly more often.

It wasn’t that Robotnik favored Agent Stone; he was just the least annoying G.U.N. agent that Robotnik had worked with, so he specifically requested him on assignments to make them marginally more bearable. If Stone chose to go out of his way to bring him coffee every morning or hand deliver reports, well, that was the agent’s prerogative.

But Robotnik was, much to his disappointment, human. When the stress of working for G.U.N. grew too much, there was only one way to could relieve it that couldn’t be satisfied by his inventions. He’d tried, on more than one occasion, to build himself the perfect toy, but there was no pleasure to be found in simply sliding his cock into a hole or shoving a toy into his own.

Agent Stone was the perfect target, so obedient and so clearly hungry for him. Robotnik was confident that all it would take was to spread his legs and the agent would cum in his pants.

He was also confident that he could get the man to do literally anything he commanded.

With a grin, Robotnik laid himself on the desk and started to undo his pants. He wasn’t going to leave any room for misunderstanding; as soon as the agent showed up with his coffee, he would know what time it was.

He was already a little hard with anticipation as he got his pants down around his ankles, shoes still on as he slipped one foot through so his legs were free to spread wide without restraint. He made sure his shirt and sock garters were pulled taut and not at all sagging, then leaned back on an elbow and idly started to mark up a report while he waited for the agent to show up any minute.

His other hand moved to his cock, gloved fingers providing an interesting glide of cloth on skin as he traced it from tip to base. It had been months since he gave into these carnal desires, and the last time had been disappointing enough that he thought he’d given up on playing with agents.

But Stone might actually prove interesting. He more than tolerated Robotnik’s idiosyncrasies—he actually enjoyed the degradation and physicality with which Robotnik preferred to express himself. It had started so simple, just a raised fist when Robotnik was on the verge of losing his temper. Stone had responded not with a flinch, but with pupils blown wide and lips parted in unmistakable want.

So Robotnik hit him, a quick punch to the gut, and the moan he got in return told him everything he needed to know: he could do anything to Stone and he’d be thanked for it.

From the other side of the main door to the lab, he heard the ba-beep of an access badge being scanned to grant entry before the door slid open. He looked over to watch as Stone stepped inside, a pleasant smile plastered on his face.

“Good morni—”

And then Stone blinked, stopping mid-step, his eyes locked on Robotnik’s exposed lower half. His dark skin flushed almost immediately, and his mouth fell open with a quiet, “Oh.”

Success.

The anticipation bloomed into proper arousal under the heat of Stone’s gaze, and he moved his hand away from his cock to ensure the agent could see how hard and wanting he was. “Is that my latte?”

Stone looked at the mug in his hand as if he’d forgotten all about it, then back up and swallowed. “Yes, Doctor.”

“Well?” Robotnik curled two fingers. “Bring it here.”

With a brief hesitation, Stone crossed the room, eyes flicking nervously between Robotnik’s face and his crotch with a clear effort to keep his gaze from wandering. It was amusing just how bad he was at hiding his desire.

Stone set the mug down and started to back away; Robotnik’s hand shot out to grab him by the tie. The agent’s eyes went wide and his throat visibly bobbed with a hard swallow.

“Sir?”

“Come on, Agent Stone, don’t be so shy,” Robotnik said with his voice pitched low, pulling the agent toward him, wrapping the tie over his closed fist. One leg lifted to hook over his shoulder and hold him in place while the other spread to the side so he would be situated right where Robotnik wanted him. “Come closer and entertain me.”

Stone’s body radiated heat through his suit, palpable against Robontik’s bare skin where they touched. Then, tentatively, the agent put a hand on his thigh, a slight tremor in his fingers before they tightened.

“Y—Yes, Doctor,” came the breathless reply.

Got’m.

Robotnik canted his head to the side, lips pulled into a grin. “Let me see what I’m working with.”

Obediently, Stone’s hand flew to his own crotch, jerking the zipper down in a hurried motion and fishing himself out. He was pleasantly sized, and even more pleasantly aroused.

It was nice to know that even at his age, Robotnik still had it.

“Is it—”

“Adequate,” Robotnik snapped. “Do you know how to use it?”

Stone hesitated, his breath coming in a short puff of air. Robotnik tightened his grip on his tie, pulling him down closer.

“I asked you a question.” His other hand reached out to grab his balls and gave them a hard squeeze, coaxing a delicious moan and a whole-body shudder out of the agent. “Do you. Know how. To use it?”

“Yes,” Stone keened, his body arching to push himself more into Robotnik’s hand. “I do.”

“Hmm.” Robotnik loosened his grip enough to roll the balls along his palm, pressing his fingertips just behind them, rather enjoying the sound of produced from the man. “And when do you have time to use it?”

Stone rocked his hips forward to grind against his fingers, head falling back with another moan. “I, ah—it’s been a while—”

“How long?” Robotnik tightened his leg over Stone’s shoulder like a pincer claw. His hand shifted back to the agent’s cock and aligned it with his own, then glanced down expectantly.

After a moment of hesitation, Stone moved just enough to slide their cocks together, a shiver running through him. “Oh,” he breathed out as his lips briefly ticked up into a smile before he schooled his expression. “Maybe—a few years—”

Robotnik rumbled low in his chest, one brow arched. “That’s how long we’ve been working together.”

Stone’s head snapped forward and he looked at him with wide eyes, his whole body going still.

Robotnik grinned. “Oh?”

“I, uh—I mean—”

Robotnik pushed himself up, propped on one arm, and pulled Stone down to bring their faces inches apart. He felt the agent’s warm breath on his face, let their eyes lock so close together.

“You haven’t fucked anyone else because you wanted to fuck me,” Robotnik said, grinning even wider than before. “Are you that obsessed with me?”

Stone swallowed. He wanted to close the distance between them; it was painfully obvious. Robotnik braced himself to pull back if necessary, but the agent didn’t bridge the gap. He just stared at Robotnik’s mouth with desperate need plain in his eyes.

Yes. Robotnik was going to have a lot of fun with him.

He moved his hips to bring Stone’s attention back to their cocks, and the agent’s started to thrust against him, panting into his mouth.

“Doctor,” he said almost like a whimper, “I don’t want you to think—”

“I don’t want you to think. I’m not interested in your mind. I’m interested in your dick and what it can do.”

Stone’s expression briefly shuttered, and Robotnik absorbed this with glee. It wasn’t that his feelings were hurt… no, it was too many feelings that he was trying to hide.

“You are a means to an end,” Robotnik continued, relaxing back onto the desk as he let the pleasant sensations of Stone’s cock against his own fill his blood with heat.

Even more pleasant was the delirious look in the agent’s eyes the more he talked.

“I should tie you up and take what I want so you don’t get any ideas about what you are.”

“Please,” Stone gasped, rutting properly now, his hips slamming into the backs of Robotnik’s thighs. “Please—fuck—I want that—so bad—”

Robotnik could have laughed if his lungs weren’t currently invested in heavy breathing. It had been longer than he realized, because he could already feel the tension in his muscles that heralded an impending orgasm.

He didn’t want to give Stone the satisfaction of making him cum so easily, though. And he certainly wasn’t going to cum first.

He let go of Stone’s tie and completely relaxed against the desk, arms behind his head, and pushed his hips into the air.

“Next time,” he said, angling his head to the side, “I’ll let you fuck me.”

Exactly as predicted, Stone lurched forward and made a sound deep in his chest as he spilled onto Robotnik’s abdomen, one particularly eager shot striping across his chest. He watched the agent tremble and shake with the force of it, eyes closed and jaw slack as he moaned.

Then Stone jolted and stared down at him with eyes wide open, flustered, almost panicked. “Oh, god, I’m sor—”

“Are you done?” Robotnik interrupted, staring up at him, not moving from where he laid on the desk.

Stone blinked. “I finish—”

“Are you done?”

There was a brief pause, and then Stone moved his hand to hold Robotnik’s cock, gently at first, then with a firmer grip as he started to stroke him.

“No, Doctor,” he said, looking down at him with worshipful eyes. “I’m not done.”

Robotnik’s lips spread with another grin. “Good.” Then he closed his eyes to focus on the pleasure of Stone’s hand, the glide made easier when the agent collected precum and his own cum to use as lubricant.

It didn’t take long for him to find the edge again. He wouldn’t attribute it to Stone himself—it could have been any agent between his legs.

It could have been any agent who didn’t get on his nerves. Any agent that listened to his every word, actually listened to him.

His eyes opened again, and as he panted through clenched teeth, as he felt his muscles tighten under Stone’s ministrations, he locked eyes with the man gazing back at him.

Any agent with big brown eyes that looked at him with unconditional adoration.

He frowned and turned his head to the side. He shut his brain off to stop the flow of thoughts that were counter to his intentions, to instead just focus on feeling and not thinking.

He lifted his hips off the desk to push himself into Stone’s grip, thrusting upward, his fingers splaying as he pressed his palms to the desk top. He took control, and Stone responded by holding his hand still and keeping his grip tight.

It was better than simply fucking a toy. Stone’s hand was warm, soft. He tried to memorize the feeling so perhaps he could replicate it, so that maybe he could satisfy himself with just a toy.

But he knew better than that. As much as he loathed it, there was something necessary to human connection. He needed another person. He needed—

His breath left him as if punched in the gut, stomach tightening as his back arched off the desk, toes curling in his shoes. His orgasm was like a flash, a sudden burst of heat in his groin, and then he was cumming all over his shirt. Stone stroked him through it until Robotnik swatted at his hand with a breathless huff.

His muscles twitched along his sides as he tried to hold onto the feeling, the bliss that bloomed along his nerve endings, but it was already fleeting, already slipping away while his chest heaved with every breath.

With a shuddering sigh, he opened his eyes to stare up at the ceiling, skin prickling all over. Why did he need this? Why did he crave something that escaped him moments after he had it in his grasp?

“I’ll find something to clean you off with, sir,” Stone said, his voice soft with apprehension.

Robotnik watched him go, running his tongue over the back of his teeth, not moving from where he laid.

Perhaps he needed... more connection.

His tongue slipped past his teeth to run over his bottom lip, and he let his eyes trail over the mess he’d made of himself.

Perhaps there would actually be a next time after all.

Chapter Text

Everything returned to normal after that day—everything except Stone. He tried to follow Dr. Robotnik’s lead, and he gave no indication that anything had changed after their… liaison? He wasn’t even sure what to call it. It felt almost like a fever dream that hadn’t happened at all.

Oh, but it had. It had definitely happened. He thought about it every waking moment, replayed the vision of the doctor spread out beneath him, replayed the sound of his voice as arousal overtook the usual sharpness.

And he definitely jerked off to it every night.

The doctor, meanwhile, was his normal magnificent self. Stone continued to bring his coffee and assist him however he could, all the while hoping, praying that he’d walk in one morning to find him naked again.

He had said there would be a next time, but Stone was starting to think that had just been a ploy to get him to cum first. There had been no actual discussion of what that morning had meant; Stone had cleaned him off, Robotnik had redressed, and the day resumed like nothing happened.

It was fine. Stone was grateful just for that single moment, would cherish it in his heart until the day he died. It had been a privilege and an honor to bring pleasure to the man he loved. If he never got another chance, then that was the doctor’s prerogative.

That didn’t stop him from bracing himself every time he entered the lab, though. Didn’t stop him from feeling a rush of excitement as the doors slid open. Didn’t stop him from wanting to walk in to find—

—the doctor, standing at one of his stations, completely naked save for his control gloves.

Stone just stood there for a long breathless moment. He blinked rapidly to make sure it wasn’t just a trick of his desperation, that next time was actually here. The doctor remained naked, and he turned his head to look over his shoulder with an impatient arch of his brow.

“Are you just going to stand there, or are you going to get me ready?”

“Y—Yes, Doctor.” Stone set the coffee mug on the nearest surface and crossed the room with long strides, his heart pounding loud in his ears.

Robotnik didn’t change his stance. He didn’t spread his legs or arch his back or make it easier for Stone in any way. All he did was look back at the holographic screen in front of him and moved his fingers over it.

“Lubricant is there,” the doctor said with a casual flick of his hand.

Stone noticed the bottle set on the table, and his mouth went dry as he picked it up. It was brand new, the seal still around the top—had the doctor purchased it just for this moment?

The sound of the plastic tearing under his fingernails was loud in the quiet space, as was the pop of the lid when he pushed it open. He dribbled some onto his fingers and took position behind the doctor, daring to put his other hand on the hip in front of him.

Muscles twitched as Robotnik flinched, but he otherwise didn’t react. Stone sucked a breath in and slipped his fingers between the doctor’s cheeks, finding his entrance with his middle fingertip and pausing just to feel the furled skin.

It truly was a privilege and an honor, Stone thought. He didn’t know if this was something the doctor indulged in regularly, but he didn’t think so. They spent so much time together that he couldn’t fathom when it could happen without Stone knowing.

He gently massaged the hole with little circles, only applying enough pressure to feel him without slipping inside. He wanted to savor this, to enjoy opening the doctor slowly—

“Boring,” the doctor snapped. “I told you to get me ready. Get to it.”

Stone bit back the response he wanted to give, a plea to let him have this. Instead, he pushed his finger in to the first knuckle and crooked it.

Robotnik’s head tilted back just slightly, just enough to encourage Stone to slide his finger out and back in deeper. Stone tightened the grip of his other hand, soothing his thumb over the doctor’s hip bone.

He wanted to lean in and kiss the back of his neck. He wanted to lick and bite and leave a mark on the pale skin bared to him, but he swallowed those inappropriate desires and tried to focus instead on working up to a second finger as quickly as possible.

When he had two fingers buried inside the doctor, when he was able to spread them apart and twist his wrist with ease, the doctor was flushed across his neck and cheeks. There was a swell of pride in Stone’s chest—just being able to draw this much reaction out of the doctor was a great success in his mind.

“I think that’s enough,” Robotnik said, his voice just shy of rough. He pinched his fingers to close the screen, then turned to face him. The flush had spread down the front of his chest, Stone noticed with delight, eyes dipping down and flicking back up.

“Yes, Doctor,” Stone breathed out.

Robotnik crossed his arms over that beautiful expanse of skin tinged with red. “Take your pants off.”

Stone didn’t waste any time undoing his belt and unzipping his pants to let them fall to the floor. He stepped out of them and kicked them aside, then stood to attention with his hands clenched at his sides.

After a moment, Robotnik snorted. “The briefs, too, idiot.”

Right. Of course. Stone hurried to get them off, his cock springing free and standing equally to attention. Robotnik canted his head to the side as he openly stared, upper lip peeling in a brief grin.

Then the world shifted, and Stone realized he was being shoved hard enough that he toppled over backwards, hitting the floor with a thud and knocking the breath from his lungs.

“Tsk. An agent should be prepared for anything.”

Stone coughed, his whole body aching, and he looked up to watch the doctor pick up the bottle of lubricant. “I’m sorry, Doctor.”

“I didn’t ask for your useless apology.” Robotnik tipped the bottle over to pour it out onto Stone, some of it landing on his cock, some on his shirt, his hip, his balls.

Stone didn’t know why, but it was quite possibly the hottest way lube had ever been applied to him.

Once Robotnik seemed satisfied with the amount, he tossed it carelessly onto the table and stepped over him before crouching down to straddle his lap, his balls nestled onto Stone’s slick cock and sliding along it as he shifted to get more comfortable on his knees. The harsh lighting of the lab illuminated the sharp angles of his body as Stone gazed up at him, hands coming up to grip his thighs.

It was a beautiful vision. Stone wanted to commit it to memory, wanted to never forget how the doctor looked right then.

“Agent.” Robotnik held up his hands, waggling his fingers. “I’m not going to dirty my gloves, so take care of things, will you?”

“Of course,” Stone said, blinking away his stupor to refocus on the mission. He reached between Robotnik’s spread legs to grab his own cock, holding it at the base and lining it up with the doctor’s hole.

Without further preamble, Robontik dropped down to take all of him at once.

Stone’s head fell back with a loud, stuttered moan, his hand briefly trapped where it was as the doctor began to ride him. On the lift up, he withdrew his hand to return it to gripping one of the taut thighs, fingers digging in as he held on for dear life.

It was difficult to get his vision to focus on one thing. The flush had grown a deeper shade of red across his cheeks. Stone wondered if he knew he was blushing, or if he was completely unaware of the coloring his skin took on when he was aroused. The dichotomy of that paired with his sinister grin made Stone’s own face feel hot all over.

“How long have you fantasized about this?” the doctor asked as he rolled his hips to glide along Stone’s cock, thighs lifting him up and dropping back down.

“Too long,” Stone answered on a quiet moan. He could feel the doctor’s muscles flex against his palms, and he couldn’t resist digging his fingers in harder.

Robotnik huffed a laugh and cocked his head to the side. “How many times have you touched yourself while imagining this?”

Stone gazed up at him, his tongue running over the back of his teeth. “All the time,” he dared to admit aloud. “Almost every night, Doctor.”

That earned a proper laugh as Robotnik threw his head back with the sound. “Oh! You actually said it!” He dropped down and held there, his ass flush to Stone’s thighs. “You’re obsessed with me.”

Stone breathed in.

His eyes slid closed and back open.

“Yes,” he said on the breath out.

“And why wouldn’t you be?” The doctor reached down to unbutton the front of his shirt, pushing it open and gazing down at his chest. His eyes flicked over him, taking in the bared expense of skin, and he hummed. “How many of these are from protecting me?”

Stone glanced down to take in the visible scars that marred his chest. He honestly wasn’t sure—he didn’t keep track of what came from where. His body was meant to protect, and injuries were just a sign that it had done its job.

Then Robotnik was leaning down, and his eyes tracked the movement of the doctor with his breath stuck in his throat as that beautiful face came closer; not to his own, but down to brush teeth over a knotted mass of flesh on his shoulder where he’d been shot a long time ago. His wet tongue laved over it, circling and tasting and exploring the lighter skin.

Stone couldn’t breathe. He just watched, silent and still, while the doctor lavished his scar with teeth and tongue. He had no idea what to do, so he did nothing, just let the doctor have his way without questioning it.

The doctor started to grind against him, his movements shallow but no less wonderful to feel. His breath came out in warm puffs over the skin made wet with his saliva.

His whole body rocked with each roll of his hips, one hand resting on Stone’s bicep to brace himself as he sped up, starting to thrust up and slam back down, growling as he bit down on Stone’s collarbone with clear intent to leave marks.

Stone wouldn’t have minded if his intent was to rip his throat out, so long as he didn’t stop moving. Not when his cock felt so good, so perfect inside him, the pressure and the smooth glide both absolutely exquisite—

Then Robotnik bolted upright and sat back, Stone buried all the way inside him, and raised his hands to bring up his screens with a spread of his fingers.

Stone blinked. His grip tightened on the doctor’s thighs as he just tried to breathe through the haze of arousal making his vision swim, the feeling of his impending orgasm tight in his groin.

“Doctor?” he asked, his voice cracking a bit.

“Shh.” Robotnik’s fingers flew over the keys of the virtual keyboard. “Don’t distract me.”

Stone breathed in and out through his nose, trying to bring himself back from the edge, but he had been so close. He could feel the twitch of anticipation deep in his balls, was certain he would cum if the doctor would move just a little bit, just one more lift and fall.

If he moved his own hips, fucked him from below—it wouldn’t take long at all, he was certain of that. But he knew better than to interrupt the doctor’s work.

So he waited. His arousal didn’t abate; perhaps a normal person would have gone soft without stimulation, but he couldn’t deny that this was its own kind of hot. He gazed up at the doctor and just watched him work, watched the flush of his skin slowly fade until the only sign of his arousal was a thin trail of precum dribbling down the shaft of his cock.

He couldn’t tell from his vantage point if the doctor was actually working on something for real or just teasing him. He tried to follow the text moving across the translucent blue screens, but it was all backwards and scrolling too quickly.

Intermittently, Robotnik would shift just slightly, just enough that it kept him right on that edge. He had to know what he was doing because it was too perfectly timed, like he had a countdown in his head keeping track of when to move… and the idea that the doctor was dedicating space in his brilliant mind just to do that was almost just as thrilling as the occasional friction.

Stone waited. He flexed his fingers against Robotnik’s thighs, tried to keep himself from thrusting up into him, tried to be patient. But time dragged on with no end in sight, and he felt desperation clawing at the inside of his ribs.

Perhaps it was a test. Perhaps the doctor wanted him to beg.

“C’mon, Doctor,” he said with a quivering whine, “let me cum.”

Robotnik’s eyes flicked down to meet his, and his mouth lifted at the corner into a crooked grin. “Nuh-uh.” His gaze returned to his screens. “Let me finish my work first.”

Stone breathed out through his nose. It wasn’t given like a command, not a firm denial.

“Please.”

Their eyes met again, and the doctor’s hands stilled.

“Why should I let you?”

Stone’s tongue darted out over his bottom lip. “I—I don’t know, because—” His grip tightened on his thighs again.

Because he wanted to fill him up. He wanted to have him, to feel like for a moment the doctor was his and he was the doctor’s. He wanted to pretend they were lovers, that this was more than just a casual fuck at the doctor’s whim.

“Are you so desperate that you can’t even articulate your thoughts?” The doctor pinched his fingers and the screens blinked out. “Tell me what you want.”

“To cum inside you,” he answered quickly, honestly.

Robotnik gave a short, clipped bark of a laugh. “And what about my needs?”

Stone’s eyes widened as he nearly bolted up off the ground in his brief panic. “I’ll take care of you! My hand, my mouth—whatever you want!”

“Whatever I want?” Robotnik hummed. “And what if I want to fuck you?”

“Whatever you want,” Stone repeated with full sincerity.

Robotnik chuckled as he spread his legs a little further apart and sat up higher on his knees without losing their connection. “Next time, maybe. For now, I’ll let you have what you want.”

Next time.

It didn’t have the same instantaneous effect that it did before, didn’t shock his system into orgasm just hearing the words. But he started to thrust his hips upward, burying his cock deep inside the doctor before sliding out nearly all the way and slamming back in. He watched each pounding send a tremor through the doctor’s body as he was bounced and fucked.

Next time.

His hand closed around Robotnik’s cock and he started to stroke in the same rhythm as his thrusts, twisting his wrist along the head before sliding back down, precum coating his fingers.

Next time.

His breath escaped him in rapid puffs, and he looked up to watch the flush bloom renewed across Robotnik’s face and chest, eyes closed and lips parted.

Next time.

The doctor was beautiful. He was haloed by the harsh lighting, skin practically glowing under it. Each thrust rocked him upward, but he looked far from helpless; he looked like a being made for worship, and Stone was made to serve.

He tried to last longer, but the closer he got, the more erratic the timing of his hand became. He felt heat within his veins, felt his muscles seize up as the tension coalesced almost painfully right before he came apart, hips lifted off the ground and flush to the doctor’s skin.

Robotnik’s gloved hand closed over his and forced him to keep stroking, used him in pursuit of his own pleasure while Stone could only groan and stare at nothing at all. He felt the fabric and rubber and metal of the glove against his hand, felt the shaft sliding along his palm.

Then the doctor started to move, thrusting into his grip, breathing heavier and audible now as he got closer to his own release. It was almost too stimulating on his cock that gave its final pulse, and Stone collapsed onto the floor so that he slipped out of the doctor’s ass.

While he tried to catch his breath, the doctor was panting now, forcing Stone’s hand faster, grinding against it, fucking it properly. Stone watched through half-lidded eyes, watched the way their hands were joined, and imagined how it’d feel if the doctor’s hand was bare.

With a soft groan that sounded like it was punched out of him, Robotnik threw his hips forward and his head back, and Stone stared at the slit at the tip of his cock as he came. The sight was erotic, almost filthy, cum striping his shirt and tie and bare chest.

Stone wished some of it had gotten onto his face.

His own cock softening against his thigh, Stone watched the doctor’s pulse with his release until it abated, but the man didn’t move from his taut posture, back arched forward. His chest rose and fell with every heaving breath; then, all at once, he dropped down and seemed to go limp, hand falling away from Stone’s and head dropping forward.

There was a moment of stillness, interrupted only by their breathing but no other sound. Stone felt discomfort seep into his bones, the ache from being thrown to the floor starting to surface into his awareness. He didn’t move; the doctor was still recovering, and be wouldn’t dare try to rush him.

“That,” the doctor said, eyes still closed, “was adequate.”

Stone’s chest filled with delight. Anything that was adequate to Robotnik’s unparalleled standards was, in anyone else’s, great. “Thank you, Doctor.”

“Hmm.” Robotnik swayed a bit before he braced a hand on Stone’s chest to push himself up. He turned away and went back to his station with his hip resting against the table. “Clean yourself up. You’re a mess.”

Stone glanced down at his chest and smiled. “Yes, Doctor.”

Next time, he repeated to himself as he got to his unsteady feet and went to search for a cloth.

He just hoped he wouldn’t have to wait as long for next time to happen.

Chapter Text

Robotnik felt frustration simmering under his skin. He didn’t normally have patience for these meetings, but this one was particularly irritating him. Walters had been droning on for an hour about the specifications for a new project Robotnik was to work on next.

This could have been an email. A nice, clean, silent word document.

Stone sat beside him, dutifully taking notes and asking questions. Robotnik’s lips curled up in a sneer as he looked at the man, at his well-groomed hair and his pressed shirt and wrinkle-free pants. He was always so well put together.

It made Robotnik want to ruin him.

While Walters’s attention was on the dossier in front of him, Robotnik reached under the table to put a hand on Stone’s thigh. The agent jolted in surprise, his eyes flicking up to meet Robotnik’s gaze, dipping down to his lap, then back up.

There was a question in those big brown eyes that Robotnik answered with a grin before shifting closer to feign interest in the notes. His hand slid higher until it met the crook of his hip, fingers splayed and feeling around until he found the soft bulge of the agent’s cock through his pants.

Stone sucked in a quiet breath and glanced up at Walters. Robotnik didn’t follow his gaze; if the old crone was aware of what he was doing, he dared him to say something about it.

Then Stone shifted in his seat, spreading his legs a little wider, sitting further down so his pelvis was angled toward Robotnik’s palm.

Robotnik’s grin widened. So obedient. This was why he liked—

—why he preferred Agent Stone.

His fingers twitched as they brushed over the zipper, teasing the little metal nub with his fingertips. He heard the quiet, shaky inhale, saw the way Stone’s eyes briefly fluttered closed in anticipation. Through the pants, he could feel Stone harden, felt his cock stirring to life at just this little bit of teasing.

Robotnik leaned in a little closer, unable to resist the urge to drag his teeth over the agent’s jaw. He felt the friction of the short beard hairs, the slight rasp as he scraped over them—

“Dr. Robotnik,” Walters snapped. “What the hell are you doing?”

Robotnik growled as his head snapped to the side. “Trying to find something worthwhile to do.”

“Worthwhile?” Stone repeated under his breath, quiet enough that he probably thought Robotnik didn’t hear the ecstasy in the single word.

Walters gestured at the dossier with both hands. “Your job should be worthwhile enough without—harassing an agent.”

“He likes it,” Robotnik bit back.

Stone sucked in a breath. “Doctor…”

Robotnik glanced at him, eyebrow raised in challenge. “Tell him the truth.”

“I—”

“I don’t care what you do in your private time,” Walters interrupted with clear exasperation in his voice. “Just keep it private!”

“Oh, Walters,” Robotnik said with a wicked grin as he pulled Stone’s zipper down. “I know you’re from a different generation, but you can’t be homophobic in this day and age anymore.”

“I’m not—” Walters stopped to breathe in, his fingers pinching the bridge of his nose, rubbing small circles there. “It’s inappropriate behavior at the workplace. I could have you both fired.”

“You don’t have the balls to fire me,” Robotnik spat.

Walters pinned him with a meaningful stare and said, his voice light in a way that belied the threat in his eyes, “No, but Agent Stone—”

Robotnik felt fire and ice fill his veins, saw black and red fill his vision. “Finish that sentence and your little project won’t see the light of day.”

There was a tense moment of silence, just the two of them staring at each other while Stone didn’t move, blink, or even breathe. Walters’s nostrils flared and his ears turned red; his eyes flicked between Robotnik and Stone.

Then the old man started to grin, wrinkles deepening at the corners of his mouth. “I had no idea Agent Stone was so important to you.”

Robotnik felt his muscles seize up. His hand still on Stone’s crotch clenched into a fist, squeezing him through his pants. Stone made a small sound in the back of his throat, not quite a moan but nearly there.

Walters thought he was so clever. Thought he had cornered Robotnik, thought he’d laid a trap and caught him.

Robotnik lifted his chin and raised his hand from Stone’s lap, dragging his palm up the front of the agent’s stomach and chest, feeling the taut contours of his muscles. “He serves a purpose.”

Stone’s eyes turned toward him, big and worshipful. “Thank you, Doctor.”

That wiped the smile from Walters’s face and dropped it into a frown. “Can we return to the real reason we’re here so we can call this meeting done?”

Robotnik hummed. “I think we’ve wasted enough time.” He stood, his chair squeaking as it slid away from him. “Come on, Agent. Back to the lab.”

“You can’t just—”

Stone closed his notebook and clutched it to his chest as he rose to his feet. “Yes, Doctor.”

Robotnik strode out of the room with his coat lapping at the back of his legs, his fingers twitching at his sides to type over an imaginary keyboard. It was easier to take mental notes when he imagined typing them, and it was easier to imagine typing them with his muscle memory activated.

Agent Stone? Important to him? What a subjective notion. The agent suited him. Matched his energy. Took everything thrown at him with a smile. Never complained.

Did that make him important? What did important mean? Of great significance or value; likely to have a profound effect on success, survival, or well-being.

Behind him, he could hear Stone’s shoes clicking against the floor, footsteps matching the pace of his own. The agent hurried to overtake him so he could swipe his badge, so Robotnik could keep walking into the lab uninterrupted.

Was Stone… significant? Profound? No. He was—he was useful. He served a purpose. And right then, his purpose was to take Robotnik’s mind off the irritation that clawed at the inside of his skull.

Stone didn’t say anything. He just took his usual position near one of the stations and looked at him with a patient smile, waiting.

Robotnik leaned his hip against the table, crossed his arms over his chest, and angled his chin up to peer down the length of his nose. “Take off your pants.”

That brought a brightness to the agent’s eyes, an almost literal shimmer in them. He set his notebook down and complied without hesitation, undoing his belt and letting his pants—and his briefs this time, because he was capable of learning—to the floor. His cock bobbed when freed, not fully hard yet but quickly filling out right before his very eyes.

Robotnik felt the arousal return to his blood, but nothing happened between his legs. His hand moved to his crotch, fingers feeling along the soft line of his cock where it sat limp against his thigh.

Fuck, fuck, fuck.

“Stroke yourself,” he commanded to stall for time while his mind tried to remember how to force an erection.

If Stone suspected anything, he didn’t let it show. He licked his palm, saliva briefly stringing from his fingertips to his tongue before his hand moved away and broke the connection. He wrapped his fingers around his cock and stroked, slowly at first, quickening his pace when his eyes lifted to meet Robotnik’s.

It was pleasant to watch, and he felt heat, and his cock remained soft. Briefly, he considered snapping at Stone to stop, but—instead, he said, “Keep your hand still and fuck your fist.”

Without a moment’s hesitation, the agent’s hand stopped moving and his hips started to thrust forward. He shifted his stance, widening his legs apart, his other hand moving behind him to grab the edge of the table to brace himself.

Robotnik didn’t need to get hard to be fucked. But he felt discomfort at the idea of Stone finding out that he was struggling, that he was old, that his cock sometimes didn’t work. So he just kept his hand pressed to his groin to check for any sign of life while he watched Stone fuck his hand with fervor.

“Doctor,” Stone panted on a breath out. “I want to—”

“I don’t care what you want,” Robotnik all but barked. “This isn’t about you.”

Stone’s mouth clicked shut and he nodded, gaze falling away from Robotnik’s, lips ticking up into a smile at the corners. He closed his eyes, presumably to focus on the sensation of his cock moving through the tight ring of his hand.

It gave Robotnik the opportunity to quietly move closer for a better look at him, at the pleasure in his parted lips and furrowed brow, at the way his muscles moved under his skin with every movement of his hips. Robotnik’s fingers twitched with the urge to reach out and touch.

And he gave in.

Stone startled when gloved fingertips brushed over his knuckles and trailed up his wrist. His eyes snapped open and met his gaze before softening with unrestrained adoration, his tongue moving over his bottom lip.

“Do you want me to cum?” Stone asked in a breathless voice. “If you tell me to—”

“No.” Robotnik curled his fingers around the agent’s wrist and squeezed it in a bruising grip. “You aren’t allowed to cum today.”

The look in those dark brown eyes was nothing short of euphoric. He nodded and continued to rut, seeming to move faster and thrust harder now, spurred on by the command.

This was why Stone was important. No one matched him so well. No one suited him better.

Robotnik leaned in to bite at Stone’s jaw and cheek, tongue dragging over his skin. He just needed more stimulation to get hard, just needed to get involved.

He moved a little closer and started to grind against his leg, humping the thick muscular thigh, his free hand grabbing the front of the agent’s shirt and fisting the black material.

Stone made a little inquisitive sound. “You’re not—”

“Shut up,” Robotnik hissed, biting down with enough force to make the agent yelp. “Say it and this ends. Permanently.”

Stone turned his head to press his cheek to Robotnik’s and huffed warm air over his ear. “Please, I—I want to suck your cock… Doctor.”

Robotnik’s hips stuttered. Did the agent not understand? He was flaccid. Soft. Useless. Unable to perform.

“Please,” Stone whimpered.

Robotnik tore himself away with a growl, one hand raising to run through his hair that had fallen over his forehead. He stared at the earnest look in Stone’s eyes, the silent, desperate plea within them.

“Fine,” he relented, stepping back to press himself against a table and sitting on the edge. He let his legs fall apart and inclined his chin. “Take it if you want it so badly.”

Stone was on his knees before him in one fluid motion. His hands moved to undo the front of Robotnik’s pants, one reaching in and brushing his cock with gentle fingertips before pulling him out.

Seeing his useless cock held so gingerly made his chest ache. He should be hard, should be choking Stone on it, buried down his throat. Instead, his cock flopped a bit as Stone nestled one finger beneath it to lift it up.

And took it all in his mouth. Which wasn’t a feat in its current state, but suddenly being enveloped in warmth made a tremor run along his spine. Stone just held there, nose buried in the exposed ginger hairs where his pants were open, eyes closed and tongue moving along the length.

He was massaged without suction, softly and tenderly. Stone traced over the head and the shaft, swiping his tongue up and down and side to side.

Then—he sucked. It was still gentle, not hard enough to hollow his cheeks. Just enough to apply some force while he continued to tongue his cock.

Stone’s hands moved to grip Robotnik’s thighs, not squeezing or digging his fingers in, but instead soothing his thumbs over them in lazy circles.

All the while, Robotnik felt tension growing in his abdomen. He clenched his hands into fists and started to rock his hips forward while Stone held perfectly still to let his mouth be used. Robotnik couldn’t call it fucking, not with his cock in this state, but—it felt good.

He actually felt like he might cum.

His mind raced. Biology was his least favorite subject, full of unnecessary systems and processes and fluids and inefficiencies. He knew the basics, because he knew the basics of everything, and those didn’t include whatever was happening to him right then.

He breathed a little heavier, moved a little faster. Stone continued to stroke his thighs and rub his tongue along the cock sliding in and out of his mouth, his own breath warm as it puffed out his nose and onto the little triangle of exposed skin below his shirt hem.

Then Stone opened his eyes to gaze up at him adoringly, like he was the entire world. Like nothing else mattered.

Robotnik’s hand shot out to grab his hair and forced his neck to bend back at a painful angle. His cock slipped out of the agent’s mouth, as did a sharp moan, and those eyes went half-lidded with pleasure.

“Stroke me,” Robotnik commanded.

Stone didn’t hesitate. His hand moved from Robotnik’s thigh to his cock and began to pump the short length, fingers wrapped tight around it.

Robotnik wanted to close his own eyes to focus on the sensations, but he found himself transfixed by the vision between his legs. Stone had his mouth open and tongue out in anticipation, staring directly at Robotnik’s cock like it was the world now.

Stone was unlike any other agent. He was unlike any other person.

Robotnik couldn’t believe it when it happened. The tension grew tighter and tighter until it snapped all at once, and a moan was punched out of him while he watched cum spill out the head of his cock and onto Stone’s tongue.

It wasn’t an impressive display. He didn’t paint the agent’s face the way he would have liked.

But when he came down from it, his cock giving a feeble twitch in Stone’s hand, he felt a moment of peace. The frustration was gone, the feeling that something was under his skin and in his bones had dissipated.

Stone leaned in to lick the cum dribbling from the slit on the head of his cock, then began to tuck him back into his pants and zipped them up, refastened his belt. Then he sat back on his haunches and looked up at him with a smile, his own cock standing proudly from the nest of thick black hairs.

Robotnik, for the briefest moment, considered jerking him off to return the favor. But that thought was quickly dismissed—the agent was to serve him and his needs, not the other way around.

“Get dressed,” Robotnik said, rolling his eyes as he shoved Stone out of the way so he could stride over to his work station. “We have work to do.”

“Yes, Doctor,” Stone said, pushing himself to his feet and going over to his discarded clothes.

While the agent was getting dressed, Robotnik pulled up a small browser just out of sight and typed in a quick search.

Soft cock orgasm

He managed to skim through enough of the results to confirm it was indeed a thing before he dismissed the window at the sound of Stone’s approach.

“Do you need my notes, Doctor?” Stone asked, holding out his little black notebook.

Robotnik waved him off. “Of course not. I know everything I need to know.”

Stone smiled as he set the notebook down on another table and turned back to him, hands clasped behind his back. “I know you do, sir.”

A glance down confirmed the agent was still hard as a rock. Robotnik drew his tongue over the back of his teeth before he said, “You may cum at midnight precisely.”

Stone’s eyes took on that strange shimmer again, lips parting for a wider smile. “Thank you, Doctor.”

And tell me when you do, he almost said. But that felt strangely intimate, and the moment he named the feeling as such, he shut down all of his thought processes except for the one necessary to focus on his work.

Chapter Text

Stone had never been so nervous in his life. He had endured several interrogations, been shot at countless times, felt the blade of a knife cut into his throat. But this—this was what gave him anxiety.

The doctor had finally taken a break from his work to use the restroom, giving Stone just a handful of minutes to get ready. He got his shirt off in record time, tossed haphazardly onto the table so he could move on to his shoes and pants. His heart raced in his chest, pounding against his ribs, pain running along his nerve endings.

He was now standing in the lab in nothing but tight lingerie, black lace that hugged his chest and crossed over his stomach, scallop-edged panties that failed to keep his balls contained, a bra that pushed his pecs together into plush mounds. Sheer purple tulle decorated his hips, not a full skirt but close enough to one.

The idea had seemed perfect in theory. Whatever he and the doctor had was recurring, and he wanted to encourage it, and how better to do that than to wear something nice for him? But now that he was about to have his little outfit revealed when the doctor returned, he felt like an idiot.

He looked stupid. He didn’t have the soft and gentle curves of a woman the lingerie was intended to accentuate. One of his balls was falling out of the panties, and if he got hard, his cock would stick out the top.

Just as he was about to abandon the mission and get redressed, the doors slid open and Robotnik stepped into the lab with his coat lapping at his heels. Stone froze when their eyes met and he watched as the doctor glanced him over with one brow raised.

And then Robotnik went back to his station and resumed his work.

Stone stood there, half-aroused just from the doctor’s scrutiny, wholly unsure of what to do. Was that—a rejection? Should he put his clothes back on? Should he hand over his resignation and become a hermit in the woods, replaying this mortification over and over in his mind?

Then, without looking over, Robotnik spoke up. “Agent.”

Stone stiffened in more ways than one. “Yes, Doctor?”

“What is—” One hand gestured vaguely in his direction. “—that?”

Ah. He didn’t like it. Stone’s hands clenched at his sides and he dropped his chin down toward his chest that ached with embarrassment. “Please forget about it.”

Robotnik’s head snapped to the side, narrowed eyes boring into him. “That wasn’t my question.”

Stone swallowed. “It’s—lingerie that I thought you might like.”

“Why?”

Why? Why, indeed? Stone’s fingernails dug into his palms as he tried to come up with the answer. The truth was he had always liked lingerie, had always wanted to wear it for someone and see their eyes light up, to hear how they liked him in it.

The truth was he just wanted Robotnik to like him.

Robotnik closed the screen in front of him and turned to face Stone, crossing his arms over his chest and arching an impatient brow. “What gave you any indication that I wanted you to wear lingerie?”

“Nothing,” Stone said, trying to swallow the shame rising up his throat like bile. “It was just a hope.”

“A hope.” Robotnik cocked his head to the side. “You hoped I’d want to see you like this.”

“Yes, sir.”

Robotnik gave a quiet snort, a short puff of air out his nose that flared his nostrils. “Why do you care what I want?”

Stone’s eyes snapped up to meet the doctor’s gaze. “It’s the only thing I care about.”

That earned him a twitch at the corner of Robotnik’s mouth. “Ah, yes. Your obsession with me. I almost forgot about that little detail.” He uncrossed his arms as he strode across the distance between them, a hand reaching out to palm him through the panties. Fingers explored the lacy edge before one hooked under it to brush over the place where his cock met his balls.

Stone’s body didn’t know how to react. His hips pushed forward to seek more of the man’s touch, but his shoulders curved inward with embarrassment. His chest still hurt, nerves still jittering from the uncertainty over the doctor’s reaction—did this mean he liked it after all?

“Did you order this online?” Robotnik asked, leaning in to put their faces close together, breath warm against Stone’s lips. “Or did you physically go out and buy it?”

“Online.” Stone felt like whimpering when the fingers went lower, kneading his balls with a little too much pressure.

“Hmm. Not brave enough to look a cashier in the eyes?”

Stone quietly shook his head, the smallest movement, trying to keep from allowing their mouths to touch. He hadn’t earned such a privilege, and he didn’t want to take it on accident.

Robotnik cupped his balls in his whole palm and squeezed. “Use your words, Agent.”

Stone’s head fell back as a moan was forced out of him. “I, ah—It wasn’t that. I couldn’t find what I wanted in stores.”

The pressure abated, and Robotnik resumed the almost uncomfortable kneading with his fingertips. Stone’s cock was standing at full attention now, the panties pulled taut along the shaft while the head poked out over the top.

“Oh? And what makes this outfit so special?”

“It…” Stone hesitated, and Robotnik squeezed again. The words came out in rapid succession, almost a wheeze: “I thought this would look good on me.”

“So it had nothing to do with what I would like?” Robotnik pulled on his balls, drawing a high-pitched keening sound out of him. “You didn’t consider me at all, did you? This isn’t about me. This is about you.”

Stone found himself breathless as he struggled to say, “No, I—this—this is for you!”

“It isn’t. Admit it. This is your little fetish.” Robotnik’s other hand gripped the exposed half of his cock and gave it a firm squeeze, rubber buttons digging in uncomfortably. “Do you know why I use you for this?”

Stone just stared up at him, panting, trying to keep the breathy little sounds escaping him under control. His vision blurred at the edges with tears, his senses overwhelmed by textures and discomfort.

“Because you scratch an itch.” His hand started to move along Stone’s cock, slowly, leisurely. “Because you’re marginally less annoying than the other agents. But more than that—” His hands squeezed together, tipping the discomfort into pain. “Because I can do whatever I want to you.”

Stone just nodded, chest heaving, swaying a bit from the lack of anything to support him except for the doctor’s hands. He wanted to lean against him, to bury his face into his shoulder. Maybe breathe him in a little. Pull the scent of him into his lungs and hold him there.

God, he was obsessed.

“I don’t care what you want,” Robotnik continued in a low hiss, his hand on Stone’s cock moving faster, the fabric threatening to leave a rash on his sensitive skin while the rubber ground along the shaft. “Your purpose is to relieve my stress, nothing more. Is that clear?”

Stone opened his mouth to apologize, but all that came out was a cracked moan. It didn’t feel good—and yet he felt confusing pleasure spark along his nerve endings anyway, his muscles tightening with the impending orgasm.

He didn’t matter. He never had. This wasn’t a relationship, wasn’t a give-and-take, wasn’t an equal exchange. He was just a tool to be used.

And yet—

And yet—

The doctor was jerking him off. There was no reason to do so, nothing to be gained from it. His actions didn’t match his words, and Stone dared to hope that meant… something.

Stone choked on a sound between a sob and a laugh as he let himself fall forward, his face buried in Robotnik’s shoulder. He started to move his hips, rocking into the doctor’s hands, moaning more openly the closer he got to release.

Robotnik tilted his head away from Stone’s. “Go on, then. Cum.”

He would have liked to do it on command. Nothing would please him more than to will his body into action based solely on one word from the doctor. It took a few more desperate thrusts, one of his hands shooting out to clutch the front of Robotnik’s shirt when he felt it about to hit.

His mind went momentarily blank, the muscles of his abdomen and thighs seizing up. He felt his cock throbbing, felt his balls twitch and tighten in Robotnik’s grip, and he just held on for dear life. As soon as he had the clarity of mind to think, he lifted his head off Robotnik’s shoulder so he could watch the last rope of cum stripe across the doctor’s shirt in a mix of fascination and horror.

He had just shot his load all over the doctor’s clothes. His shirt, his gloves, his pants—oh, god, what had he done?

Robotnik continued to stroke him, as if trying to milk more out of his cock before he gave up and let go. A thick strand of cum connected them before it snapped, his glove glinting in the light where it was wet.

Stone just stood there, unable to think of anything except the trouble he was in. Robotnik, meanwhile, simply stared down at him, eyes narrowed, expression otherwise unreadable.

“You were right about one thing,” Robotnik said, a slight rasp to his voice—a hint of arousal.

Stone swallowed. His legs felt unsteady beneath him as he shifted his stance to try to straighten up. “What?”

Robotnik made a visible show of glancing him over, down and back up. Then his lips curled, and he turned away to walk across the lab back to his abandoned station. Without another word, he pulled up a screen and started to move his fingers over it, his work resumed.

Stone stood there. Waiting. Confused. Right about one thing—which thing? What had he been right about?

His mind couldn’t latch onto an answer, but he knew he was smarter than this. The doctor was trying to tell him something, thought he could figure it out from just those words and a look.

Oh. He blinked. The doctor had looked him over and grinned. Did that mean—was it possible—

He looked at the back of the doctor’s head, the brilliant man illuminated by the blue screens around him, and he smiled.

“Thank you, Doctor.”

There was no acknowledgement, save for a brief pause of one hand that had been in the middle of moving.

Chapter Text

Robotnik didn’t care.

Agent Stone was just that: an agent. An employee. A subordinate. Human. Insignificant.

And yet, Robotnik found himself measuring his time by Stone. His morning didn’t start until the agent brought his latte. He worked tirelessly until the agent put lunch on his desk. He wouldn’t notice the end of the work day come and go if the agent didn’t bid him a good night.

He growled and dismissed the screen in front of him to stare at the wall instead, where words and numbers couldn’t irritate him.

Stone was a means to an end. A tool to be used. A hole to fill. A thing to play with when he was bored. The fact that the time between their encounters was decreasing simply meant he needed enrichment in a tedious environment, and nothing more.

He didn’t care about anything else except satisfying his needs.

But the more he thought about it, the more he felt like his skin was too tight. The more he felt like he was going to break something if he didn’t vent his frustrations soon.

His lips curled in a sneer, and he flicked a hand to bring up a small screen that showed the time. Two minutes until Stone would appear like clockwork. Two minutes until Robotnik could make these feelings go away.

His eyes widened before he scowled and got up from his seat to pace the lab, growling deep in his throat.

No—they weren’t feelings. Feelings were for lesser beings. The great genius Dr. Ivo Robotnik wasn’t afflicted with such things. He had needs, as unfortunate as they were, but they weren’t feelings.

And what about Stone? That was the bigger issue here, actually. He had been intertwined with Robotnik’s life for years before they started fucking—and for what? Why?

What did Stone want from him?

The doors slid open just as Robotnik approached them. Stone’s eyes met his, then softened with a smile.

“Good mor—”

Robotnik snatched the mug out of his hand and chucked it over his shoulder. He heard the coffee splatter against the floor before the ceramic clattered soon after, watched Stone’s eyes follow the mug’s arc before snapping to his face.

“Morning,” the agent finished.

Robotnik clicked his tongue against the roof of his mouth. “It’s not part of your job description to bring me lattes every morning.”

Stone’s head tilted to the side, just a bit. “Do you not like them anymore?”

“Of course I like them. I love them! That’s not the problem here.” Robotnik leaned in closer, lowering his voice to a growl. “Why do you do it?”

That earned a thoughtful pause. Robotnik could see the consideration pass over Stone’s face as the agent chose his words carefully, then said, “I enjoy doing it.”

“And what, exactly, is ‘it’?” Robotnik grabbed his face, fingers squishing his cheeks, palm to his chin. “Be more specific.”

Stone’s mouth curled into an attempt at a smile with his face held so firmly. “I want to make your life easier.”

Robotnik tightened his grip. “I said be specific.”

“I think you’re the most brilliant mind on the planet,” Stone said, his voice soft and almost reverent, “and if bringing you lattes and lunches can ensure you continue to be brilliant, then I will keep doing so until the day I die.”

Robotnik recoiled, the words striking a physical pain in his chest, twisting through his ribs and straight to his heart. This wasn’t how the conversation was supposed to go. Stone was hiding the truth—had to be covering for his actual motivations to throw Robotnik off the trail.

But there was no deceit in Stone’s eyes. None whatsoever. Robotnik knew what lying eyes looked like, knew what shape they took when a false smile was presented to him.

Which meant…

“Is this how they train agents to respond to interrogations now?” Robotnik snapped. “Just—spill everything right off the bat? You could have put up a little resistance before confessing your pathetic truth.”

That brought a flicker of something across Stone’s expression that was neither soft nor reverent, but it was gone before Robotnik could discern it. “The interrogations I’m trained for are much more hostile, sir.”

Now, that was an idea. Robotnik canted his head to the side as he pondered the implications of Stone’s words. As he considered a different way to vent his frustrations.

“Hostile,” Robotnik repeated, tasting the word. “We can make this hostile, if that’s what you want.”

Stone’s eyes widened briefly. “Doctor?”

Robotnik regarded him with a growing smirk. “You have information I want. And I have stress I need to get rid of.”

“Are you suggesting—” Stone paused as a visible tremor ran through him. “You want to interrogate me?”

“It might be fun. You can show me how well you’re trained.” His smirk widened to a grin. “And I can show you how hostile I can be.” He leaned in, lowering his voice, “If you’re up for it.”

Stone replied on a breath out that warmed Robotnik’s lips, “Anything you want, Doctor.”

“Even if it hurts?”

There was no hesitation to Stone’s response: “Especially if it hurts.”

Satisfaction curled up in Robotnik’s chest, warm and purring along his skin. Yes. This would do nicely. He could expunge these needs without sex, without feelings.

He grabbed the front of Stone’s shirt and dragged him further into the lab over to a chair. Stone stumbled as he was all but thrown down into it, shifting to sit a little more comfortably.

His hands went to Stone’s tie to undo the knot, the soft rustle of fabric as he slid it off his neck, then stepped around to use it to bind the agent’s hands behind the back of the chair. Then he reached around to remove his belt, letting his cheek press to the agent’s while he looked over his shoulder to watch his fingers work the buckle.

“Now, remember,” Robotnik said as he returned to standing in front of him, then knelt down so he could strap Stone’s ankles to the chair leg, before rising back up. “This is an interrogation.”

Stone nodded, his lips parted to let out a quiet breath, eyes fixed on Robotnik’s hands. “Yes, Doctor.”

One of those very same hands lashed out to strike him across the cheek with a sound loud enough to echo in the otherwise quiet space. “Is that how you speak to your interrogator?”

Briefly, Stone’s eyes fluttered closed before he lifted them to meet Robotnik’s. “Fuck you.”

The grin that pulled at Robotnik’s lips was almost painful in the way it stretched his cheeks. “Oh, this is going to be fun.” He leaned down and grabbed Stone’s face again, even tighter than before. “Tell me what you want from me.”

Stone’s mouth twitched. “No.”

Robotnik moved his hand so that his fingers pressed into that mouth, pulling his jaw down so he could hook them over his bottom teeth. “I plan to make this very unpleasant for you.”

And to his surprise, Stone actually bit him. Robotnik tightened his grip, digging his thumb into the underside of Stone’s chin, near his throat.

“Now, now,” Robotnik said, the blunt pressure of teeth through his gloves somehow thrilling. “You’re only making this more difficult.” He wrenched his hand free and flexed his fingers before clenching them into a fist. “Why did you start making lattes for me?”

Stone’s mouth remained a firm line, his eyes locked on Robotnik’s. There was an unfamiliar coldness in his expression that Robotnik had only seen on other agents, but not Stone. The softness of his eyes was gone, as was the warmth of his smile.

So Robotnik pulled his fist back, just enough of a warning for Stone to brace himself before he struck the agent’s cheek, rocking his head to the side from the blow.

There was a pause before Stone spat on the floor and straightened back up with a bored expression.

It was—erotic, somehow. Robotnik could do anything to this man and be thanked for it. Anyone could spread their legs, but only Stone could give him this. Only Stone would give him this.

He struck him again, harder this time, not bothering with the pretense of a question. The impact sent a jolt through Stone’s whole body, held in place only by his restraints.

Blood trickled from the corner of Stone’s mouth. Robotnik realized they hadn’t discussed a safeword, and his jaw tightened with a frustrating moment of hesitation.

“You can make this stop at any time,” he said, keeping his voice even. “Just say you want it to end and it will.”

Stone looked up at him and held his gaze—then smirked. “Already losing your nerve?” He licked his bottom lip. “This is nothing.”

Robotnik wasn’t sure he’d ever seen Stone smirk before. He realized that he’d stopped breathing at the sight of it, and he suddenly exhaled.

He raised a foot and dropped it down on Stone’s lap, pressing the sole of his shoe into the agent’s groin, resting his elbow on his folded knee as he leaned down. “We’re just getting started, you and I.”

Stone’s eyes closed and he arched into the pressure; Robotnik slid his shoe higher up so that the heel dug in, then reached out to grasp the agent’s hair so he could hold his head in place.

“Don’t enjoy yourself so much,” Robotnik said in a low, growling voice.

But then his eyes flicked down to the throat bared to him, and he swallowed with the sudden urge to mark it. His eyes moved higher to land instead on the parted lips, the flash of tongue between his teeth.

Stone’s voice came out a little shaky as he breathed out, “Then don’t make it so enjoyable.”

For a long moment, they just stared at one another, passing a breath back and forth as Stone waited for Robotnik to make the next move, and Robotnik—

Robotnik felt lost, suddenly. The frustration was gone. The fire was snuffed out.

He didn’t want to care.

He wanted to believe that Agent Stone meant nothing.

But in that quiet moment, with blood on Stone’s chin and devoted defiance in those dark brown eyes, completely at his mercy and loving every moment of it—

“Why do you let me do this to you?” he asked, the sharp edge gone from his voice.

Stone’s eyes flicked down and back up before his lips pressed tightly together.

“What do you get out of this?”

When Stone just stared at him, Robotnik yanked his head back and dug his heel in harder, and the agent gasped, “Doctor—”

“What do you want from me?”

“You,” Stone keens, a tremor in his voice. “I want you.”

Robotnik withdrew, letting go of Stone’s hair and easing off the pressure on his groin, but didn’t pull away completely. His mind worked overtime, trying to run through every possible interpretation of those simple words.

“I expected you to last longer before cracking,” Robotnik said, fully straightening up while he put his careful guards in place around his thoughts. “Disappointing.”

Stone swallowed, his throat visibly bobbing. His eyes moved over Robotnik’s face, searching for something the doctor made sure wouldn’t be found there. “I—I’m sorry, sir.”

“You’ve ruined the game.” Robotnik walked past him, spreading his fingers to activate one of his consoles. “I was just starting to have fun, too.”

Stone’s head turned to look over his shoulder. There was a moment of hesitation before he prompted, “Doctor?”

Robotnik glanced over at him. “What?”

More hesitation. “I’m… still tied up.”

“I know that.” Robotnik returned his gaze to the screen in front of him. “And you’ll stay that way until I’m no longer irritated with you.”

Stone made a soft sound that was a bit like a sigh, but—fond. “Of course, Doctor.”