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pinkanonwrites · 1 month

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Repaying The Favor

G1 Rumble/ Mechanic Reader - 4600+ words NSFW, Valveplug, Miscommunication, First Time, Oral Sex, AFAB Reader - They/Them Pronouns for reader

The sequel to "Oh! That's What That Does?!" is finally here! Same reader, same Rumble, same trying to figure each other out, only this time they get to slam down crazy-style about it. When will Frenzy get his turn in the spotlight? Eventually, I think! Maybe once I've finished a few other pet projects.

NSFW WRITING BELOW THE CUT!

It had been exactly fifteen days since you had last heard from Rumble.

Not that you’d been counting.

Sure, the cassettes probably had more important things to do than lounge around your workshop waiting for your attention, but that's exactly why it was so odd. They always had better things to do, things that they were pointedly avoiding doing by barging in on your work and taking up what little free space the shop had remaining. But since your little tryst with Rumble, you hadn't seen armor nor optic of any of the usual cassette bot suspects.

Maybe you'd broken some sort of ancient, space robot taboo that you'd never heard of. Or maybe Rumble was just embarrassed that he jizzed all over your jumpsuit. Either way, it wasn't like you had any way of getting ahold of them besides them dropping in, so there wasn't much to be done about the situation but wait.

You were leaving the corner store when you heard it, the cacophonous boom of a jet flying far too close to the tips of the skyscrapers overhead. The sound sent you reeling, bags crumpling to the sidewalk as you hurried to cover your ears. Down the street you could make out the screech of metal smacking against metal, see the flailing limbs of two massive robots staggering clumsily through the street as they traded blows with each other. Neither of them were one you recognized, the red Autobot with the oversized chest window wrestling one of the identical jet Decepticons into a clumsy headlock. As they stumbled about one of them trampled on a car parked along the curb, and you winced as the metal shrieked and crumpled under his massive foot.

Yeah, time to get out of here. You gathered up your bags and ducked into the alley between the buildings, slipping past trash bags and old graffiti, trying not to tread in any unidentifiable puddles. Off in the distance you could hear an emergency siren start to wail, hopefully signaling that whatever the space robots were quarreling over this time would be settled sooner rather than later. All you really wanted was to get back home without any further interruptions.

But as you emerged from the back alley entrance and found yourself hoisted into the air by two massive metal hands around your waist, you'd decided to kiss that chance goodbye. Your bags clattered to the ground once more, bread and fruit and canned goods spilling out around a familiar pair of pedes. When you glanced up to his faceplate, the glow of his visor was nearly enough to blind you.

“Rumble?!”

His visor dimmed enough that you could see his intake, which had just before been pulled into a maniacal grin, drop open in visible shock. Then, as quick as it came, it was gone, replaced instead with a tight, furrowed frown.

“What’re you doin’ out here?” He barked.

“Buying food. Or trying to, at least.” You glanced over his shoulder just in time to see Ravage pounce on that yellow Autobot with the horns that was always showing up in the news. “You guys having a little play date or something?”

He scoffed out a laugh, quickly stifling it with a clearing of his vents. “Whatsit matter to ya? Didn't think you cared dat much about lil’ old me.”

“Rumble, what…?” Was he seriously pouting? Or maybe trying to guilt trip you? For what, making him cum? “What are you even talking about? I haven't seen you in like, two weeks.”

“Aww, real funny! You know what I mean! I let you poke around in my chassis and run up my charge, an’ after that it's radio silence? Whaddya humans call it… ghosting? Make a mech feel like second-rate shareware, why don't ya?”

You blinked at him once, twice, mind spinning as you tried to process his words.

“Are you- are you mad I didn't call you?”

His optic lights beamed as he bristled, armor flaring with a hiss before clamping tight back to his frame. “I told you to comm me!”

“Rumble, I don't have your number! I couldn't call you even if I wanted to!”

His grip went slightly slack as he stared at you, leaving you dangling from your armpits like a cat.

“I… I hailed you my frequency. In da EM field.”

“Humans don't have… whatever that is. Do you have a phone number?”

He stared at you again, much longer this time as the discordant crashing of giant metal men continued in the background. Then, with a sudden jolt, you were slipping free of his fingers as he dropped you unceremoniously to the pavement. It wasn't a far fall, just enough to make your feet tingle upon landing. When you looked up you saw he had both servos covering his faceplate, a string of muffled curses eking out between the digits.

Your mind was reeling. He actually wanted you to call him? To… repay the favor? Heat pooled in the pit if your stomach as your mind conjured up wicked memories of his stifled gasps and whimpers, how he’d squirmed beneath you as you prodded around his spark chamber. How behind all the billowing and smashing and Brooklyn-accented bravado, when you got down to the core of him, he was actually kind of… cute.

“You- just- I don’t- Get outta here! Go on, scram! Before you get stomped on or somethin’!” His face plate was flushed and glowing as he shooed at you. You would go, that was certain, you really didn't want to get stepped on after all. But first you were going to say something potentially risky, deeply embarrassing, and undoubtedly very, very stupid.

“Come over.”

His optics shuttered, flickering for a moment as he stared down at you, frozen.

“What?”

“Not right now. Tonight. When you guys are done getting wailed on? Come over.”

He opened his intake, then closed it. When he opened it a second time you caught a wisp of steam slipping through the gap in his dentae. He swallowed, hard. He never stopped staring at you.

“...Y-Yeah. Yeah. Awright. I'll be there.”

“Cool. Watch out for the yellow guy.”

“Huh-HGGRRK!?!” You stumbled back a few steps just in time for the Autobot to chuck Ravage directly into Rumble’s helm, sending him crashing into the brick wall beside you.

“Sorry! Are you alright?” The little Autobot called. “You should probably get out of here!”

He didn't have to tell you twice.

~ ~ ~ ~ ~

The news was just wrapping up their coverage on the ‘latest Decepticon assault’ when you heard a rap on your warehouse’s roll-up door. There wasn't much to see peering out the window, the street only haphazardly illuminated by old street lights. Not that you really needed to look, there was only one guest you were expecting at this time of night anyway.

You'd stopped at home first, mainly to take a shower and put on something that wasn’t a pair of mechanic’s overalls. But for some reason the nerves hadn't hit you until right now. You clamped down on the prickle of… anxiety? Excitement? Somewhere between the two? As you pulled the strap at the base of the roll-up, the groan of shifting metal slowly gave way to reveal…

“Are you wearing a bowtie?”

“Not bad, eh? Don't say I never cleaned up or nothin’. Here.” As Rumble stepped from the dark street into the light of the warehouse he pulled something from his subspace: a large, green bottle that he offered to you pinched between two fingers. A bottle of wine. Judging by the label, an expensive bottle of wine.

“Where did you get this?” You turned the bottle over twice in your grip, scanning the details on the back. French Merlot, aged… fifteen years? Holy shit.

“Dat fancy Italian place on the corner of Fourth and Vine! What, ya don't like it?”

“I didn't say that!” Rumble positively beamed as you clutched the bottle. “I just didn't expect it, is all. Are you… wining and dining me right now?”

“Is dat a good thing or a bad thing? Your human movies said you’re ‘sposed to bring a little somethin’ somethin’ before, y’know,” There was a sly, lopsided charm to his grin as he pulled the roll-up back down with his pede, clanking shut behind him, “Before you let me run your charge for a change.”

“You know, you don't have to try so hard to im…press… me.” You trailed off, staring down at the bottle in your hands, then back up to him, then back at the bottle, then him again. When you made eye contact with him the slyness seemed to falter a bit, leaving behind something softer in his smile. Something a little more vulnerable.

How did it take this long for it to click for you? He was wearing a bowtie, for Christ’s sake.

“Oh my God you're trying to impress me.”

“Eh?” A fidgeting servo tugged at his bowtie- which appeared to be made of… an old seatbelt? “Nah, you're crazy! Dis is jus’ what humans are ‘sposed to do!”

“Oh my God you are!”

“H-Hey, what'd I say about you and gettin’ big ideas?” He tried to deter you, but your mind was already racing a mile a minute.

“Do you actually like me? Like, want to date me? Do alien robots even date, cause I didn't know th- MMPH!”

With a massive metal palm pressed to your chest, Rumble pushed you back into your adjustable work table, still sitting at a mostly upright angle from the last time you'd repaired him. The table against your back was cold, a sharp contrast to the radiating heat from his servo as he pinned you in place with his hand. His face was inches from yours as he leaned over you, visor now gleaming with frustration and embarrassment.

“You can't get enough of dis, huh? Like pushin’ my buttons so much?” His servo pinned you down just a touch harder, forcing the air from your lungs in a breathy wheeze. “‘Oh, it's so fun to get Rumble all flustered! Lemme mess wit’ his head a lil more!’ Well maybe it’s Ol’ Rumble’s turn to do da messin’ around, huh? See how you like it when someone’s toyin’ with your sensitive bits.”

He bared his dentae as he spoke, another hiss of steam curling around your cheeks. It made your hair stand on end. A hot thrill ran through you, and you fought the urge to let your knees knock together, confident that Rumble would be able to keep you in place with brute strength alone. You could feel his thumb smoothing back and forth across your shirt, and as he glanced down at his servo the glare of his visor lessened slightly.

“...Why’s your fuel pump goin’ all crazy? You scared or somethin’?”

You swallowed a mouthful of saliva, willing your foggy mind to function. “Not… Not scared, exactly.”

There were a few seconds of tense silence, before the wickedest, prideful grin crept back up across his faceplate.

“Oh? Is dat so?” His other servo rose to grip the top edge of the table, fingers molding to fit the dent he’d left there previously as he loomed over you. “Well maybe we oughta do somethin’ about tha- SCRAP!”

His flirtations were cut short by the sharp SNAP of the stabilizing lock on your workbench failing under Rumble’s weight and flipping 180 degrees over. The world pitched and spun as you tumbled backwards, yelping as the table flipped and deposited you upside-down on the floor, legs sticking akimbo in the air. From between your dangling feet you could see Rumble peering over you with his sly expression wiped off his visor by one of concern.

“Slag! I didn't crush your little pedes when you flipped, did I? Cause I don't no nothin’ about fixin’ up injured squishies.”

Miraculously, you had managed to make it through that ass-over-elbow fall without hitting your head on anything, or Rumble accidentally pinning your legs in place between his bulk and the table frame. “I’m alright! Just didn't expect it, I’m okay.”

“Dat’s good. Here lemme jus’-” You felt a servo close around each of your ankles. With an effortless tug Rumble dragged you back up, tabletop tipping with you as it clunked back into its standard, flat position. Of course, this now left you with your ass and legs dangling off the edge of the workbench, Rumble standing between them with a servo resting on each knee. “Better?”

You sucked in a breath, trying desperately not to look overeager. “Better.”

“Ah, slaggit all…” But instead of putting his servos back on you (where you most certainly wanted them) Rumble began to scratch at the back of his neck, failing to meet your gaze. “Guess I ain't really cut out for all this… whaddaya call it? ‘Winin’ and dinin’?’ Can't even get my servos on ya without fraggin’ it up.”

“Hey, I’m definitely not complaining.” You attempted a jokey tone, but it didn't seem to do much to dampen Rumble’s current self-deprecation. You let the playful edge fall away as you dropped into something a bit softer. “I mean it though. You don't have to try to impress me. I mean it's appreciated! But, y’know, I wouldn't have agreed to this if I wasn't already happy with the bot I was getting into it with.”

“Heh. Even if I end up crushin’ you a bit?”

“That's a risk I'm willing to take.”

He barked out another laugh, accompanied by a coil of thin steam hissing through his gap-dentae. “Well I guess I better make it worth da risk, shouldn't I?”

He snuck a servo under each of your knees, pushing them apart as he rocked his modesty panel against your clothed core. You stifled a gasp, the ridge of sturdy metal almost hot against you, even through layers of cotton and denim. The slow roll of his hips made your own stutter up off of the table, desperate for further friction.

“Cute. You like grindin’ on my panel? Should I make you bust jus’ like this?”

Despite the warm curl of arousal pooling in your stomach from the feeling, you knew this wouldn't be enough to get you off. Rumble seemed to know it too, letting out a low, pleased chuckle at your desperate expression.

“Jus’ yankin’ yer crankcase, sweetspark. I got somethin’ a lot more fun in mind for tonight anyway. Dat is, if you'll start gettin’ dese off.” He hooked a digit through your belt loop and gave them an experimental tug.

“Mmh, what, you don’t want to take them off yourself?”

“Oh, I’ll gladly take ‘em off ya. Just figured you’d take care of dis part here…” His thick digits slid inward, ghosting over the button of your jeans. “So I don't gotta rip ‘em off ya instead.”

You weighed your options. On one hand, the image of Rumble tearing denim apart with his bare servos as if it was no more than wet tissue paper was far more appealing to you than you would have originally expected. On the other hand… well, they were new jeans.

“I got it.” You mumbled, quietly filing the image away in your brain for later use as you undid your button and zipper. “Careful with th- Oh!”

With a sharp yank, Rumble tugged your jeans and underwear off your legs and let them crumple onto the floor. Shoving himself into the space between your knees, you could only barely make out the top of his helm over the slope of your stomach as he knelt before you, spreading your folds with two digits and… staring.

You waited for a response, a quip, the slow drag of metal over your slick hole, but were instead greeted with silence. Something prickled in the pit of your stomach as you fought the urge to squirm. In the back of your mind you vaguely remembered that you hadn't really gotten to see what Rumble was packing, and only now were you grappling with the truth that you were trying to have sex with a truly alien being. Would your bodies even be compatible? Was he weirded out right now? You tried to pull your knees together, only to be stopped by a rough servo shoving them back open.

“...It's rude to stare.” You muttered.

“EY! I ain't starin’! I'm, uh, admirin’. Dat’s it.” There was a similar tightness to Rumble’s voice. You shuddered as a thumb stroked the crease of your thigh. “Soft… An’ it's supposed to be dat pink?”

“Y-Yeah… that's, mmh, normal.” You shuddered at a wave of steam curling over your sensitive heat as he spread you again, visor locked on your twitching entrance.

“Primus. And you're really gonna let me spike ya in this tiny little hole?” You could feel his thumb just brushing the rim and stifled a groan at the sudden, aching emptiness, the demand to be filled. “I don't wanna tear you in half or nothin’.”

“It’ll fit.” You whined, core tensing around nothing. “We’re, unh, we’re pretty flexible. C’mon, Rumble…” You forced your knees further apart, pushing your hips up into each of Rumble's far-too-light touches. His motor snarled in response, a massive hand gripping the inside of each of your thighs.

“Slag. You're really achin’ for it, aren’tcha?” His voice was lower than you'd ever heard it before, deep and resonant and primal. “But I ain't gonna give it to ya dat easy, doll. Gotta make sure you can take it first.”

He raised his helm for just a moment, just enough for you to get a peek of his beaming visor and his wicked, gap-toothed grin between your legs. Then he descended, lathing his thick, hot glossa up the length of your cunt. You choked on a gasp, his servos the only thing keeping your hips from rabbiting up off the table. It was hot, his glossa thick and sturdy and drooling with oral lubricant, a thin layer of silicon over sturdier metal mesh dragging up through your folds.

“Easy, sweetspark…” You weren't the only one enjoying themselves. Rumble's low, rattling groan pulsed through your cunt. You swore you could just barely make out him groaning your name but it was lost, muffled as he pressed his faceplate further between your legs and his servos shivered where they gripped your thighs. He was messy and all too eager, arousal and oral lubricant spilling down his chin as his glossa stroked you; slow, deliberate drags up your folds until you were left dripping. At the apex he found your clit and took it between his dermas, a teasing hum rattling throughout his engine that had you gasping, thighs clenching around his thick helm. Your legs jerked as warmth bloomed outward from your core, hips writhing against the onslaught of pleasure. Dragging across his back your heel caught in a rounded divot, pulling a raggedy vent through Rumble’s dentae as his frame twitched.

“”Mmpfh!~ E-Ey, watch da spindle. It’s sensitive in dere…” He groaned, face still pressed into your cunt, servos only dragging your ass further off the table in his efforts to get somehow even closer to you. But instead you dug your heel in harder, pressing into the ridged divot and twisting your leg. The internal ring jerked with a sudden CLICK CLICK CLICK, each pop of noise making Rumble’s frame spasm like he'd just been electrocuted. “FRAG! Primus, that’s- ghh!~”

“Feel good?” You teased, breathless. His optics beamed back up at you, an oscillating, glistening red as you caught another peek of his gap-toothed grin from between your legs.

“So dat’s how you wanna play dis? Don't say I didn't warn ya, doll.”

You barely had a chance to respond before the noise was punched out of your lungs in a sharp whine as Rumble shoved a thick, metal digit into your drooling cunt. Achingly hard, unrelenting, he flexed it against your rippling walls as his dermas nestled themselves snugly around your clit. The hum reverberating through his frame coursed through your body like a wave, hands scrabbling desperately at his helm as the twinge of pain at the sudden intrusion melted into thick, syrupy pleasure.

“A-ah, fuck! Rumble, Rumble that's good, that's fucking good.~” Metal clanged as you lolled your head back against the table top, no longer able to keep it upright. Each drag of his digit, textured and ridged and unrelenting, sparked euphoria behind your eyelids. You felt every muscle in your body starting to prickle with pleasure, radiating outwards from your cunt and pooling in your head, your stomach, the tips of your toes…

You all but whined when he drew his digit away, dermas releasing your swollen clit with a slick pop. “C’mon! Rumble!”

“You want it dat bad, huh?” A shadow cast over your rumpled form as Rumble rose to his full height. From between your legs you could catch a glimpse of silver and blue panels fluttering and folding away, one of Rumble’s servos hiking the underside of your knee and the other stroking the gap between his thigh and pelvic armor as his spike rose to full attention. Christ, he was huge, the thick metal rod draped across your lower stomach as he rocked experimentally against you. Each thrust had the tip drooling a translucent, pinkish fluid you remembered scrubbing from the back of your jumpsuit, hot and vaguely smelling of well-oiled machinery and pooling across your bare stomach.

Rumble, for his part, seemed to be as entranced as you felt, visor vibrant and flickering as he stared down at the place his frame rubbed against your soft, supple body. A harsh ex-vent punctuated each roll of his hips, steam coiling around the corners of his slack, open intake as he pulled back, letting the tip of his spike slide wetly through your folds.

“Dat’s it, doll… You're gonna get exactly what you want. Gonna get you bouncin’ on dis spike, jus’ beggin’ for it…” His tone was low, entranced, just barely tinged with desperation. He dragged his tip through your folds again, and again, covering your cunt with his thick transfluid, making your breath hitch whenever he slid over your clit just right. You angled your hips up, guiding it right over your entrance, toes curling at the promise of pressure.

But before you could utter his name again, or any other placation or demand, you felt the heavy press, the slow, aching slide as he entered you. It teetered just on the edge of pain, muscles twinging at your inner thighs as you forced your legs wider to accommodate his bulky armor. And his spike offered just as little give, covered with a thin layer of silicon like his glossa but still distinctly sturdy, inflexible metal. Your walls rippled helplessly around the intrusion, stretched to a delicious degree as he bullied his way inside you.

About halfway to being fully sheathed in your heat he paused, visor hazy and unfocused, intake still hanging open as he vented steam. A servo was resting on each of your hips, but while one stayed in place the other slid up, up, bunching your shirt around his digits and shoving it up above your chest. There his servo paused on your side, his massive thumb stroking back and forth over your nipple, quickly pebbling under the cool metal.

“Primus.” He breathed, distinctly softer than you ever remember hearing him before (and oh, if that didn't do just as much for your arousal as everything else). Finally, his hips began to move again, that intoxicating ache only beginning to border on near-unbearable when you could feel your ass and the backs of your thighs smushed against his pelvic armor. For another moment he paused, one servo cradling your hip and the other your chest.

Then he drew back, and thrust home.

The first thrust forced the air out of you in a desperate, sharp wheeze. This didn’t slow him, not in the slightest, digits sinking into the plush meat of your hip as he jackhammered into you. Each thrust had the entire table rattling, the sharp clang of metal against metal where his thighs hit the dented table’s edge. His quiet reverence had given way to an onslaught of erotic babble, visor locked on your face as it twisted and furrowed in pleasure.

“Takin’ it so fraggin well… You’re just made for takin’ my spike, aren’tcha?” He scooped his servo under your hip and lifted you further up, all but folding you in half as he loomed over you. His dermas brushed the curve of your jaw, just below your ear, and you could feel the heat of his ex-vent making your skin tingle. “You’ve jus’ been waitin’ for me to frag you stupid, plug up that achin’ valve til you can’t think of nothin’ else.”

“Mmmh…~ It’s so big.” You slurred, thighs slick with sweat and slipping on his plating as you struggled to lock your ankles in the small of his back. His frame shivered like an electric current ran through it, clutching you somehow even closer to his massive chassis.

“Nghh…~ Yeah? You love dis fat spike, don’tcha? Say it.”

“I love it!~”

“You want me to spill my load in this tight little valve, don’tcha?”

“Please!”

“Aghh, slag! Y-You’re gonna get it, sweetspark. You’re gonna take it all, j-just-mmfh!~” His vents were ragged and desperate, thrusts stuttering as he neared his release. You squealed as his thumb found your clit, rubbing the swollen bud in rough, tight circles. Euphoria was buzzing throughout your body, the ache of your lower back buried beneath the onslaught of pleasure and heat coiling in the pit of your stomach and blooming out through your limbs, legs shaking, hands trembling.

Sparks exploded behind your eyelids as your orgasm washed over you, hips jerking weakly against Rumble’s. There was no give to his spike at all, thick and steady and unyielding as your pussy squeezed and pulsed around it. You felt a flood of something molten spill into your core, filling you nearly to the point of aching as it spilled out around the tight ring of your hole around his base. Rumble’s frame stuttered, jittering, a harsh crackle of static and mechanical chatter pouring from his drooling intake where it was still buried in the crook of your neck. Finally, finally, his frame grew still. The only noise between the two of you were your shared, harsh breaths and the low churn of the occasional car driving past outside.

“Mmmmnnghh…” Rumble groaned, shifting his hips to pull his shrinking spike from your core as he rose unsteadily back to an upright position. You could feel transfluid dribbling from your hole as he tucked himself back away- thick, translucent globs spilling down the insides of your thighs and hitting the floor with a splatter. His engine gave a little, stuttering snarl despite himself as he dragged his digit tips through the shimmering line along one of your inner thighs. “I oughta take a picture of dis…”

“Don’t you dare.” You kicked weakly at his servo, legs now tingling with static as blood rushed back to them. He barked out a sharp laugh, effortlessly batting your foot aside. His servo rested atop your lower stomach and gave a teasing press, and you shivered as more globs of thick transfluid drooled from your cunt. “Jerk.”

“Eyy, you love it!”

“Unfortunately.” There was no real bite to your tone, you could tell by the way Rumble grinned. “Think you can give me a hand getting over to the bathroom before my knees give out?”

“Depends. Does dat count as you owin’ me a favor?”

#transformers #transformers x reader #x reader #rumble #rumble x reader #tf rumble #g1 rumble #valveplug #long post #my writing #nsft

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