Archive of Our Own

You had been there by the harbour, the day your old lab had collapsed in on itself under the weight of a drowning star. You had watched in frozen horror as metal crumpled and caved, helpless to do anything but stand and stare as the dying sun was swallowed up by the depths of the water below.

Everyone had assumed it had pulled its creator down to the depths of the riverbed with it, including yourself, but Otto always had been full of surprises. 

Spider-Man had fished the Doctor's lifeless body out of the wreckage before he could be sucked down along with his failed dream, the combined weight of the arms and the unconscious man he carried driving the hero to his knees as soon as he returned to dry land a few metres from you.

For a few dreadful moments, you'd thought you'd lost your closest friend, scrambling over to Otto's limp form and fighting back the hot tears that threatened to spill down your cheeks.

But then Spider-Man had wordlessly pulled back the collar of the Doctor's trenchcoat, revealing scarred skin, the twisted metal spine fused to his body- and a strange device attached over the remains of the defunct inhibitor chip, the odd gleam of the material reflecting in your eyes as you stared in awe.

"He's been given a second chance. Take care of him." Is what the vigilante had told you before disappearing into the night sky, his oddly cryptic words hanging in the smoky air before you'd pulled yourself together enough to drag the Doctor back to your apartment, the sound of police sirens growing louder in the distance spurring you into action.

The months that followed were... hectic, to say the least. You, Spider-man and all your old colleagues had vouched for Otto's reputation, supported by the rehabilitated Norman Osborn, an old friend of both of yours.

It had taken a while, but maybe a year or so later, you'd been granted a new lab, a new start. After everything that had happened, it was no wonder nuclear physics was off the table, but whatever had taken place the night the second reactor failed had given Otto a new cause.

Prosthetic limbs, not too dissimilar from the ones upon his back, only without the built-in AI. For now. Neural links were key- and you had been more than happy to take up his offer to work with him again. After everything that had happened, how couldn't you? Sure, it was no fusion breakthrough- but you were still helping people. Saving lives. That's all that mattered.

That had been a year ago. Now, the progress you had made together had put you back on the map, so to speak, and the funding you had acquired let you pursue all manner of new ways to assist the world.

Like serums.

Now, you can admit the idea wasn't entirely an original one- you had met with Norman a few times over coffee to learn more about his previous project, the enhancing formula, though with an entirely different end goal in mind. Instead of boosting natural biology, you were going to find a way to  restore  it- using biochemistry to revive withered tissues, reverse debilitating damage, cure terminal diseases.

The project was still in its early stages, but so far you'd had great success- and a brief lull in workload had allowed you to work on something important.

Otto had adjusted to living with four sentient metal arms on his back pretty well, all things considered, and had managed to navigate life with almost all the same ease he had before. But you knew better than anyone that the actuators hadn't been designed to be worn for long periods of time, and having circuitry fused to your spinal column wasn't exactly a pleasant experience.

Over a year of lugging them around with him had taken its toll. Severe back pain, debilitating muscle strain, warped spine- and that was to name a few.

He tried to hide it, but it was becoming more and more obvious- the way he'd wince whenever he moved too fast, how he constantly shifted in his seat like he couldn't get comfortable, the struggle he had easing himself in and out of his chair when he thought you weren't looking.

One night it had gotten so bad that he sought you out directly for help, gaze downturned sheepishly to the floor, the actuators holding themselves at odd angles in an attempt to ease the pressure off his back.

And you'd gotten to work. The new serum you'd developed was tailor-made to him- you'd taken a few samples from him over the past week or so, much to his initial confusion, and the data it provided had been enough for you to come up with an advanced pain alleviator. Sure, it wouldn't heal him overnight- but it was a start.

You push open the door to the main lab with a barely concealed grin, a tube of fluid hidden behind your back as you step into the brightly lit room.

There's a whirring noise from ahead as the door shuts behind you, and five heads turn towards you, one flesh and four metal.

A smile breaks over Otto's face as you approach, and the sight alone is enough to make a familiar feeling flutter in your chest. You ignore it, as you always do, focusing instead on greeting the actuators as they jostle forward to meet you.

"Afternoon, Doc." You slip the vial carefully into the pocket of your lab coat as the actuators crowd your hands, chittering at you in high pitched tones and demanding pets.

He chuckles as you scratch them under the claws, watching you coo at them with something soft in his gaze. "Afternoon, yourself. I've barely seen you all day."

To your silent satisfaction, you realise he's not wearing his shades today. He looks good in them, you can't deny that- but you love seeing his eyes even more.

You bop one of the arms on the muzzle, shooing them back and out of your face so you can offer Otto an apologetic grin. "Yeah, sorry about that. I've been working on a little something for you."

He tilts his head to the side, and you finally notice what he was working on before you came in- a neat prototype sketch of an extendable arm spread out on the desk, small notes scribbled around it.

You gesture to it, intrigued. "Is that a new model?"

"Oh, merely a concept." He dismisses, spinning in his chair so he's facing you, one eyebrow raised. "Care to enlighten me as to what you've been keeping yourself busy with?"

You grin, reaching into your pocket to pull out the vial. His dark eyes follow you with interest as you hold it up, pale pink liquid sloshing inside the glass. "Feast your eyes, Doc."

"A new serum?" He holds out his hand, and you place it in his palm, trying to ignore the shiver that goes up your arm as your hand's brush.

"Not just any new serum-  your  serum!" You clasp your hands together, holding back the urge to start pummeling him with details as he gives you an inquisitive look. "It's not much, but it'll significantly decrease your pain until I can finish those muscle strengtheners. At the very least, it'll make the weight of our  friends  there easier to live with."

He looks surprised, turning the tube over in his hands as the actuators chatter amongst themselves, peering over his shoulders at the fluid with their white lights flickering. "Synthesised already? That was speedy." He sounds impressed.

You duck your head slightly at the praise, hoping the heat on your cheeks isn't as obvious to him as it is to you. "I've got it all done and tested, green lights as far as I can see. D'you wanna try it now, or would later be better?"

Otto hums, running a finger down the side of the smooth glass. "I don't see why now would be a problem."

You reach into your pocket to fish out a medicine cup with a grin. "Great! I'll hang around here for a bit, I'll need to keep an eye on you in case there's any side effects. You know the drill."

He looks up, quirking an eyebrow at you. "It's not going to turn me pink, is it?"

You snicker. "Not quite. There's a small chance, and I mean small, that you'll experience a mild temperature while your body processes the artificial enzymes. You might perk up a bit, too- similar to caffeine? But again, not likely."

"Worry not, dear." He smiles up at you, eyes crinkling at the edges, and the sight is enough to make you weak in the knees. "I trust you completely."

You swallow heavily. Him and that silly nickname- you know you're not special, that he probably uses it with everyone, but the word still brings a spike of heat to your face every single time.

You're certain your blush is noticeable now, waving off his comment with a huff. "Well, I'd sure hope so, Doc. Here- halfway, 25ml? That'll be enough." You pass him the cup, this time letting your hand linger, fingers trailing over his as he takes it from you.

He doesn't pull away immediately, and you feel heat creep up the back of your neck as his thumb comes up to brush over yours fleetingly before he draws back.

You have to resist the urge to snap your arm back, skin hot from where he'd touched you. Internally, you scold yourself for acting so childish- a friendly touch shouldn't have your heart racing like this, and yet...

"Thank you, dear." He seems completely oblivious to your inner turmoil, gently breaking the air seal atop the vial. An actuator sneaks down to pluck it from him, carefully tipping the viscous liquid into the cup with a precision no human could ever hope to achieve.

You watch him, head tilted slightly as he silently relays information to the mechanical limb.

You take his brief turn in concentration as an opportunity to just  look  at him- you haven't seen him very much over the last few days, courtesy of the serum, and he's always a sight for sore eyes.

You knew most people found him and the actuators intimidating, and you could see why- the four arms weren't exactly the most friendly-looking of appendages. But they rarely acted hostile anymore- if anything, they gave Otto an air of regality, especially with their habit of rearing up over him like the heads of a hydra.

The man himself was on a level of his own; after the collapse of the reactor, he'd tried to dress like a typical  dad  to appeal to the public -  all button-downs and khakis. But now the worst had passed he had gone back to a style similar to when he was awol, dark turtlenecks and trenchcoats, and  damn  did he look good in them.

You can barely imagine him wearing anything else, anyway- even before the actuators, he'd always worn quite dark clothing. That maroon turtleneck especially... you still get shivers thinking about it.

You're so lost in thought that it takes an actuator brushing against your arm to bring you back to the present. You startle, focusing your straying gaze to see Otto smiling at you softly, a twinkle of something unidentifiable in his eye.

"Well." He swirls the cup, holding it up in mock cheers. "To your work."

"Cheers." You watch as he downs it in one go, humming slightly as his tongue darts out to lick some of the spare fluid from the rim.

You look away before your thoughts can wander into dangerous territory, but the image is already seared into your mind. Dammnit.

"Hmm." He places the empty cup on his desk, one actuator gently pressing the vial and the remains of its contents into your hands. "Chocolate."

You take it from him and flick the seal shut again, definitely not thinking about his tongue or how much you wanted it down your throat. "Thought I'd add a little flavour. No one likes raw meds."

He smiles. "I'd assumed it'd be strawberry, going by the colour."

"Well, you know me. I like to keep you on your toes." You flash him a grin and pull up a nearby swivel chair, sinking down into it with a sigh and placing the vial on the desk. "Alright, give that about twenty minutes and you should notice a difference. Tell me as soon as you feel anything, alright?"

He smiles softly. "Of course, my dear."

The two of you fall into comfortable silence soon after, Otto resuming his sketching while you leave for a moment fetch a blank notepad and pen, idly twirling the writing utensil in your fingers as you retake your seat to watch him work.

His hand glides across the paper- effortlessly tracing smooth lines over faint sketches, outlining a segmented hand with almost machine-like precision. He'd always had an unshakable touch- the hands of an engineer, of a physicist. It always amazed you much his hands dwarfed your own, how easily he could encircle your wrist, your neck, how effortless it would be for him to just reach out and grab your hips-

Nope. You turn your head away, face flushing. That was not a safe path to go down.

You'd sworn a long time ago you weren't going to let your feelings for the Doctor get in the way of your relationship, especially not your work. You'd much rather sit in silent longing than potentially ruin years of friendship. But  damn  did he make it difficult sometimes.

You huff a soft groan, flipping over to a fresh page and tapping the end of your pen against your chin. You don't have much to do right now, not until the serum takes effect, so... You idly sketch a little picture of one of the actuators in one corner of the page, and you're halfway done with the outspread claws when a soft sound catches your attention.

You look up at Otto, brow furrowing. At initial glance, nothing seems amiss- but then you catch the subtle hunch of his shoulders, a slight crease at the corner of his mouth, a small twitch of his head like he's struggling to focus on the notes he's jotting down beside his half-finished blueprint.

"Doc?" You sit up, eyes flicking to the empty medicine cup. "Everything alright?"

He takes a second to respond, blinking like he's lost himself deep in thought. "Ah... yes, fine. I see what you mean about caffeine- though it seems to be drawing my focus away instead of honing it."

You frown, abandoning your little doodle in favour of scribbling down a quick note. "That's... odd, but feasible. Do you have a temperature?"

He tilts his head, humming. "I'm feeling a tad hot, but nothing particularly uncomfortable."

"Okay, good." You bite the inside of your cheek, pushing your chair away from the desk and standing up. "Hopefully it'll stay that way- I'm going to fetch a thermometer, just in case. Hang tight, alright?"

He nods, and you toss your notebook down, striding away out of the lab and into your office, an absolute mess of a room that only you knew how to navigate.

You open the top drawer of your cluttered desk, sifting around various junk until you find the device you're looking for. It's in pretty good condition despite not being used for god knows how long- if a little dirty.

You were back in the main lab not half a minute later, brushing dust off the readout screen. "Sorry about that, Doc. How're you-" You halt mid-approach, words dying in your throat. "...feeling?"

Otto is looking worse than when you'd left him- hunched over the desk, breathing heavily like he'd just had the wind knocked out of him. The actuators are rattling,   metal joints shuddering uncontrollably as they curl over their host, clicking at him in concern. 

"Oh, crap-" You dash over, placing a hand on his upper arm, hoping to pull his attention to you. "Otto?"

You barely touch him before he flinches, shying away from you with a muffled grunt, the actuators drawing tight around his body like they were trying to shield him from you.

"Ah, there you are." He swallows audibly, and you don't miss the fact he's purposefully ducking his head, hiding his face from you. "I seem to have hit a spot of bother."

No kidding. You drop into your chair and drag yourself towards him, sliding your notebook towards you in the process. "Alright, you're having a worse reaction to it than I thought- could you turn around for me? I need to take your temperature."

Otto's whole body stiffens for a moment, and you nearly ask him again when he suddenly relents, slowly turning in his seat to face you.

The actuators whirr, chattering frantically amongst themselves as he shifts uncomfortably in place. The bottom two, Harry and Larry, creep under the arms of the chair to drape over his lap, curling up like snakes with their claws open and white lights locked onto you.

Otto's head is still turned downwards, and he looks uncomfortable- he risks a glance up at you at your silence, and you see why.

His whole face is flushed bright red, skin shining with perspiration, his hair unkempt and clinging to his forehead like he had been running his hands through it repeatedly. His eyes are dark- their usual shine muted as he quickly averts his gaze.

"Oh, Otto." You grimace, holding the muzzle of the thermometer up to his forehead. He winces as it beeps sharply, and you pull it back to check the readout with a frown. "...Fever level temperature. Crap, I'm so sorry, I was hoping it wouldn't be this severe- it should pass soon, do you want me to get you anything? Water? A cool towel?"

"W-Water will be fine, dear." He seems to be looking everywhere but at you, and you chalk it down to discomfort. You notice the slight hitch in his voice but decide not to mention it, patting him sympathetically on the arm and heading over to the fridge in the far corner of the lab.

Dammit. You wouldn't have given it to him if the chances of this happening weren't negligible, but despite your best efforts, science seemed determined to shit all over you today.

You open the fridge and grab a bottle of water, unscrewing the lid and flicking it onto the desk as you return to the Doctor's side, offering it to him. "Here, drink up."

He lets out a muffled thanks, taking it from your hands eagerly. His fingers brush against yours roughly, shaking as they withdraw, but you barely notice.

He brings the bottle to his lips and proceeds to chug the whole thing down in about ten seconds, the two actuators not slumped in his lap doubling back on themselves to try and peel the trenchcoat from his shoulders.

He's not having much luck with Harry and Larry occupying his midsection, and your brow furrows at the odd behaviour of the arms. Apparently, your serum isn't just affecting him.

"Do you need some help?" You're standing before you know it, and he shoots you a panicked look. You back up a little, unsure, when his shoulders sag with a defeated groan.

"I..." His jaw twitches, throat working as he swallows, staring a hole into the desk. When he speaks, his voice is small, quiet, nothing like the man you knew. "Yes, please."

You approach him wordlessly, and he stiffens as he turns his back to you, Harry and Larry reluctantly unfurling themselves and allowing you to grab the smooth fabric of the coat. You pull it off him with a bit of careful manoeuvring, mindful not to catch the sleeves on the joints of the metal arms as they straighten out.

He lets out a soft sigh of relief as the coat leaves his shoulders, and you fold it over the back of your chair, retaking your seat with what you hope is a reassuring smile. "Is there anything else I can do? It shouldn't take too long to pass, now."

He shakes his head, but the actuators seem to have something to say about that- all four of them breaking out in metallic chatter, jostling for his attention. He growls and swats them away with a trembling hand, locked in a silent argument with them.

You let him sort them out, quickly jotting down the thermometer reading into your notebook and scowling down at the page. Nothing like this had cropped up in any of the tests you had put the serum through- you'd even used samples from him, dammnit! What had you missed?

You look up with a flinch as Otto suddenly groans, doubling over in his seat and holding onto the edge of the desk for support.

You're next to him in an instant, barely repressing the panic shooting up your spine as you shake his shoulder gently, trying to keep him grounded. "Otto!"

Much to your surprise, he doesn't pull away like you expect him to- instead, he leans into your touch, feebly reaching out to grasp the edge of your lab coat.

You stand in shock for a moment before gently unhooking his fingers, and he lets out a weak sound at the loss of contact as you step away.

"Alright, that's it. I'm going to fetch some-" Your words are cut off by a yelp as an actuator abruptly shoots out to coil itself around your waist, pulling you back towards Otto with your feet dragging against the floor.

"Wha-!" You squirm in its grip, but your arms are locked to your sides, rendering any movement outside of kicking your legs useless as you're lifted gently into the air. "Hey!"

Harry and Larry plant themselves against the floor, pushing Otto and the chair he's occupying away from the desk. The other remaining arm pushes Otto upright, splaying out against his chest and forcing him to recline in the chair.

He's not controlling them. The realisation makes your blood turn cold, but there's no hostility here- instead, the actuator holding you hostage seems to purr into your ear as it lowers you, depositing you firmly onto Otto's lap.

You try to move as soon as the arm loosens its hold on you, but the one holding Otto down pulls away to keep you in place, twisting around both of your bodies so you're pushed chest to chest.

Huh.  You ignore the heat creeping up the back of your neck as Otto grunts, his eyes flying open to stare at you in shock, your noses nearly touching. He tries to feebly push you away, but the actuators aren't having it, tightening around you both.

He's no longer the only one bright red- you are, too, trying desperately to focus on anything but how warm he is beneath you, how wide his thighs are, how you have to practically spread your legs apart just to keep your balance.

You end up failing horribly, noticing  everything - his chest, sturdy against your own, his hot breath wafting over your face, the comforting smell he seems to carry with him everywhere invading your senses and making you lightheaded.

Some small part of your mind is going wild, cheering you on- you'd only ever dreamed of being in Otto's lap, but as much as you'd be over the moon in any other situation, this isn't exactly something you've prepared for.

Maybe the fever was affecting Otto's chip? You watch as the top right actuator, Flo, snakes up to chitter in his ear, her claws unfurling like a flower.

The Doctor grits his teeth, eyes fluttering shut as a desperate groan bubbles up from his chest. The sound sends a flare of heat to your pelvis, but you barely notice, eyes wide as you watch the silent argument.

"No, no-" He tries to turn his head away, but Flo follows him, whispering sweet melodies that you can't help but listen to.

"Otto, what's going on? What're they saying?" You manage to squeak out, trying to shift against your metallic bonds with little success.

The action makes the man beneath you tense, a soft gasp breaking from his mouth as his eyes flutter open to look at you.

You nearly recoil with shock at what you see within them- his umber irises swallowed up fully by his pupils, dilated to near unnatural proportions as he fixes you with a look that couldn't be described as anything other than hungry.

"I..." He's lost for words, gaze glassy, blinking rapidly like he can't stay focused.

At a loss of what to do, you try moving again, shuffling your lower half forward to try and ease the pressure Flo and Moe are putting on your spine.

"Wait!" Otto strains against you, and the actuators take the opportunity to press you closer- bumping your hips forward so you're straddling him properly.

You have a split second to register the shift when you freeze, heart pounding so loudly you're certain Otto can hear it, too.

Something stiff is pressed against your inner thigh.

You gape at Otto, but he doesn't notice- his head has fallen onto your shoulder, sucking air into his lungs like he's fighting for control.

You squeeze your legs together reflexively, and the man trapped beneath you lets out a choked moan, hips jerking and pressing himself further into you.

Your brain finally manages to reboot, bringing with it a realisation that makes your expression shift into complete mortification. Holy shit.

You'd somehow, against all odds, accidentally made a goddamn aphrodisiac.

You blink stupidly as Otto presses his face further into your shoulder, clearly struggling to stay composed as shudders against you.

He inhales deeply, trying to clear his throat, and when he speaks, his voice is impossibly thick. "I-I'm sorry, they're acting on my desires, I-" He grits his teeth, muffling a whine as his hips jerk involuntarily against yours. "I can't control them."

You open your mouth, but it takes a moment for your voice to work, the absurdity of the situation overriding your usually calm demeanour. "Well, I- This isn't quite what I'd expected, but I suppose it could have been possible-"

Otto groans, face flushed in a mixture of hopeless arousal and embarrassment. "I'm so sorry-"

"You're sorry? Otto, if anyone should be sorry, it's me! This is all my fault-"

"You couldn't have predicted this, or you'd never have given it to me." He manages to get out, but his words are catching on each other, his voice slurring. 

You bite your lip, thinking, but all the solutions you can come up with lead back to one thing, something that both excites and terrifies you.

You swallow, trying to build up your nerve. "Listen, I don't have anything that can counteract extreme arousal. How, uh... how bad is it?"

"I feel like I'm burning up- my skin is on fire." He pants. "I can't-" He cuts off with a harsh grunt, the hardness trapped between you twitching sharply. "I need- I need..."

Oh, you knew what he needed, alright. You were more than happy to give it to him, but... His judgement was skewed. The last thing you wanted was to feel like you were taking advantage of him, but you couldn't think of any other way to help. You could try to wait it out, but his symptoms should have passed by now, and they were only getting worse.

Screw it. You suck in a deep breath, steeling your nerves. "Alright, I may have a, uh, solution. It's a little unorthodox, but..." You trail off, hoping he'll pick up what you're hinting at.

He does, managing to lift his head to fix you with a desperate look, tears gathering in the corners of his eyes. "I-I can't ask that of you."

"What if I'm offering?" You retort, surprised by your boldness as you hold his gaze.

You barely have a chance to react before he's claiming your lips in a rough kiss, pulling a squeak of surprise from your throat.

You return it as soon as your brain catches up with you, pressing into him, and he muffles a desperate moan into your lips as his tongue slips into your mouth.

It's fierce, choking- nothing like how you'd thought kissing him would be and a thousand times better. You're lightheaded by the time you break apart for air, Otto immediately dropping his head to kiss at your neck, moving upwards to nip feverishly at your jaw.

You didn't realise how hopelessly aroused you are until you shift- feeling the slickness that's gathered in your underwear as Otto tries to rock his hips against you, a whine collecting in the back of his throat.

"Please,  I want you, I need you-" He shudders as the actuators loosen around your waist, giving you just enough leeway to pull your arms free. You immediately wrap them around Otto's neck, holding him close to you.

"It's okay, I'm here." You shush him, one hand tangling in his hair, the other ghosting over the inhibitor chip with the utmost care. "You can have me."

Like a switch is flipped, the actuators unravelled from your waist- only to immediately close over your shoulders, shredding your lab coat in half as they drag it clumsily off you.

You whip around to scold them, but your words fall on deaf ears. They ignore your protests and tear the shirt you were wearing underneath off, snapping the back of your bra in two and leaving your top half naked.

You aren't the only one- Otto's turtleneck has been reduced to a lump of fabric on the floor, and you turn back just in time to see his undershirt be ripped from his body, exposing his broad chest.

You get a brief glimpse of thick arms and glorious pectorals you wanted nothing more than to bury your face in before Otto is kissing you again, large hands pulling you into him as he groans helplessly into your mouth.

You don't realise you're being tipped backwards until your back hits the surface of the desk, everything Otto had been working on swept aside carelessly by his metal appendages.

He falls over you with a hungry growl, blocking out the lights above, and you can barely catch your breath before he's kissing you again, teeth nipping at your bottom lip and sending delicious pain to mingle with the arousal pooling in your gut.

He pulls back for a brief moment to press his forehead to yours, shudders wracking his body as he fights to keep the last vestiges of control. "Forgive me, I-"

You shush him, rocking your hips and reducing his words to broken gasps as the actuators align themselves behind him, supporting him as he pins you into the desk.

"It's okay, I have more clothes. Speaking of which-" You look down, heated sparks winding up your spine as you see the outline of his cock throbbing in his trousers, pressed against your thigh with a growing wet patch growing on the dark fabric. "I think we're both a bit overdressed."

Immediately Otto is lifted off of you, an actuator snaking upwards to quickly tug your trousers down, taking your shoes along with them. It returns a second later, using its tip pincers to gently hook the waistband of your pants, easing them down your thighs.

Otto's been given similar treatment, unable or maybe unwilling to protest as all his remaining clothing is stripped from him, leaving the both of you bare as he's lowered back onto you.

You can't find it within yourself to be self conscious, not when Otto lets out a throaty moan as soon as his skin presses against yours, his hips moving as soon as he wraps his arms around your shoulders, his length slickening your thigh.

You catch a glance of him before he was on you again- he's  thick,  his whole length twitching and flared a bright, painful-looking red, precum leaking in thick strands from the tip.

He ruts against you with desperate pants, and as much as you'd love to let him cum all over your thighs, you can think of somewhere much better he could be. It takes a few firm tugs of his hair to get his attention, his eyes shuttered and hazy with lust as he pulls away from sucking deep marks into your neck.

"Otto..." 

He groans as you say his name, your voice breathy and light and sending goosebumps up his back. You feel his arousal jump against your thigh, and you hook your legs up around his thick waist, holding onto his shoulders for support.

You lean up to bite his bottom lip gently and he follows you down as you lie back, barely a millimetre of space between you as you kiss the tip of his nose.

"It's okay." You whisper. "I know. Take what you need from me. Don't hold back."

His dark eyes flare with fire, his expression turning predatory as you offer yourself fully to him. The sight sends a prickle of fierce arousal down your spine, and you clench around nothing. He's going to devour you, and you're going to let him.

You have about one second to admire the sight before his hips are shifting, lining up with your entrance. The slick heat of your centre brushes against him, and he groans desperately, snapping his hips forward without warning and sinking into you in one deep thrust.

You have the air knocked out of you, hands scrabbling at his back as he lets out the longest, deepest moan you've ever heard in your life, bordering on pornographic.

He falls against you with a broken gasp, whimpering into your shoulder as he stretches you open in a way that makes galaxies flash vividly in your eyes. He fills you up in a way nobody's ever done before, pushing deep heat through your whole body as you let out a breathy "Yessss" into his ear.

You don't have time to adjust before he's moving- not that you need it, you're sure you're wetter than you've ever been in your life- moaning wantonly as he rolls his hips quickly into yours, hot tears leaking onto your skin as he drowns in relief.

"Thank you, thank you, thank you-" He chants feverishly into your shoulder, holding onto you like he can't bear to let you go, teeth grazing roughly against your collarbone as he fucks you into the desk.

You vaguely realise said desk is slamming against the wall pretty loudly, probably denting it at the pace he's going and causing unwanted damage, but you don't care at all.

Whatever you'd managed to cook up must be strong- he's fucking you like a man starved, hard and fast, slamming into you and chasing his release, each roll of his hips pressing agonising bliss into you as he takes what's his.

The heat he's bearing seems to seep into you, driving you wild as you cling onto him for dear life, mouth open in a soundless moan as hot pleasure throbs from your pelvis and up your entire body. "Fuck, Otto- "

He snarls, beyond coherency as he ravishes you without pause, the actuators whirring in high pitches behind him, lights flickering rapidly.

You're climbing your peak rapidly, floating on a choking cloud as Otto ploughs you into the desk, surrounding you in every possible way, marking your neck with rumbling growls, his pace becoming erratic as the sound of his skin on yours becomes the only thing you can hear-

You climax with a broken shout, clenching around him and burying your face into his shoulder, tears leaking down your face as he carries you through one of the most intense orgasms of your life.

You gush around him, and his breath hitches, harsh grunts evolving into utterances of your name, desperate and vulnerable as his thrusts become sloppy.

Your climax only seems to have pushed him further, rutting into you with a force that was sure to bruise as he hunches over you, a final, whimpering moan escaping his throat as he cums deep inside of you.

Thick warmth floods your walls, each thrust pushing liquid heat deeper inside, the sensation nothing short of heavenly as he finds his relief in you. It seems to last forever- Otto shuddering in raw agony as he cries out into your neck, finally collapsing atop you with a final, broken whine.

There's a loud crashing sound from behind him- the actuators have all fallen to the floor in a heap, leaving his full weight to crush you against the desk.

You wheeze as the air is squeezed out of you for the third time, banging your fists weakly against his shoulders, and thankfully it's only a few seconds before the actuators reboot, shaking themselves off like dogs and helping ease him up off of you.

Otto is limp, groaning softly, looking absolutely  wrecked  as his eyes flutter open, squinting down at you like he's just awoken from a dream.

He breathes your name softly, in awe, and you smile up at him tiredly in response, unhooking your hands from his back to gently cup his cheek. "Hello."

"D-Darling, I-" He blinks, trying to gather his thoughts, the haze of afterglow easing him back down from the effects of the serum.

His eyes widen as he takes in the state of you both, fading blush coming back in full force as he stares down at you in a mix of horror and shame. "I-I don't know what came over me, I'm so,  so  sorry-"

"None of that." You place a finger over his lips immediately, shushing him. He blinks down at you, surprised, those puppy dog eyes shining wetly.

"That was the best sex of my life. Besides, if anyone should be apologising, it's me. I don't know what the hell I managed to mess up with that serum."

He huffs a sudden laugh, hair hanging down about his face. "Yes, that was certainly interesting. Though I suppose science is often unpredictable."

You blush in embarrassment, half at his words and half at the realisation he's still inside of you, draped over you with an air of intimacy you'd only ever dreamed of.

There's a moment of thick silence, and your eyes find each other again, nothing to hide behind as you both lie vulnerable and exposed, wrapped up in each other's arms.

"Otto." You whisper. "I am so sorry, I-"

It's his turn to shush you now, leaning down to press a soft, lingering kiss to your lips. When he pulls back, his gaze is hooded, looking down at you with thick emotion swirling in his eyes.

"My dear girl. While this isn't how I imagined our first time could be, I am grateful you trusted me enough to assist me. In truth, I..." He trails off, ducking his head closer to yours and averting his gaze. "I have wanted this for a long time. I only wish you could have found out another way."

You gape up at him in astonishment, and he takes your silence as a negative response, turning his head away with a pained expression. "I-I'm sorry, I-"

You shut him up by dragging him back down for a kiss, muffling his grunt of surprise as you slip your tongue into his mouth.

You pull part shortly after, rubbing your thumb over the soft skin under his eyes with a grin as he gazes down at you with wonder in his eyes. "Me too."