Blurred Lines 🔞🌶️
IDW Optimus x Reader
Note: Decepticon Reader. NSFW. Mentions of claiming. Non-verbal consented. Simple interface to senseless fragging.
Hope you guys enjoy reading it as much as I did writing it <3
———————
They’re the enemy, he shouldn’t be doing this and needs to stop it, but how could he when you look so good like that. Watching your lost expression, optics off and moaning loud into his chassis as the leader pulls the 'con down on his spike again. The prime sitting back against a tree with them on top his lap as they grip his gauntlets in pleasure.
He’s a Prime for Primus sake! A Prime and leader of the Autobot cause, he should be ashamed of himself for wanting this. What would the others think if they saw this. Seeing him willing bounce a ‘con as they mewl and gasp for him, feeling his thick spike stretch them over and over. He should be leading by example, needs to pull you off and apologize. To say it was a mistake when he accidentally grinded into your aft when pinning you, chassis down into the grass. But seeing the sight of you taking him at a pace he had set, he couldn’t help it.
You arched further into his heated frame when taking him again, baring your neckcables to the Prime while he buries his spike deeper into the warmth of you while you ride him. He can’t tell if it’s the heated mixing of yours and his fields that got him wanting to rut deeper, or how his name sounds when you moan it in pleasure, letting him use his strength to keep a comfortable pace. Primus do you look good riding his spike like that, moaning like that. Feeling your thighs spread more open over his pelvis in invitation to encourage his hot spike deeper into your heat and takes it. Pulling your hips down on him harder and slight faster with a groan. Grinding up ever so often to test of you could take all of him.
Venting hard, he feels one of your servos palm up his front to cup the back of his helm. Tugging him down onto your intake with a combined groan, the sound of differing pitches mixing beautifully. Not registering that his mouth guard had shifted away at some point during interface. Not that it would’ve bothered him as your glossa was quick to hide within his own metallic mouth, moving and smoothing against his own with want. Kissing him so passionately with such desire of him, for only him and it finally clicks. You wanted his spark, wanting to show that through interfacing with him. That you dared to show your intimate interest in him to him and he growls low at that, among the other noises that you both were making.
Nipping and mouthing as your other servo now finds itself moving up to thumb his helm’s audio fin and he bucks up hard. Gripping his helm with a heightened sense of need as you try to lean up into his mouth, moaning deeply at the unique taste of him. Groaning into your joined intakes as the pace increases, your valve taking him with little difficulty, pulsing each time he hits deep and you shout. So blissfully lost in the welcoming heat of your body and your lovely glossa, the prime attempts to bottom out. After all, he didn’t want to hurt his ‘face partner when he was so big, not when they willingly allowed him to indulge in another’s frame. But now thinking on how you’d feel stretched fully over his throbbing spike, stuffed full of just him. It’s got him wanting more from this.
With a darkened desire to see you stuffed full with his transfluid and throbbing spike, he begans to buck up. Thrusting up his pulsing spike while digging his servo’s digits into your aft’s meshing to pull you down on him harder, startling a cry of his name from you. The sound muffled by his mouth and you have to shift to handle the new pace. One servo moving to grip tightly onto his chest while the other stays cupped the side of his helm. Fields flaring at the other in desperate need while internal cooling falls behind, trying to cycle in cooler air and vent out increasing heat.
Finally that feeling hits Optimus, the valve opening to you now rocking harshly down on the base of his aching spike. The valve’s meshing shifting and pressing hard on the node of his own valve has him unlatching from your intake to violently throw his back his helm in new found pleasure. You hardly notice the mech’s harding grip on you as your pulled more harshly onto his spike when bottoming out. Beyond awareness of anything but the thick head pressing into spots you didn’t even know you had and still demanding more, rolling your lower half as he grunted in utter bliss. Accepting the attention given and rewarding it back with unashamed sounds.
What would the Autobots even think at this point were he to get caught slamming the Decepticon down on him. Long, hard strokes down the length of him. Pulling you up while always keeping his spike’s head in, to then have you drop hard onto his equally hard bucks as you shift and grinding out a yelp. Completely helpless against the harsh pace and loving it, feeling the entirety of his fluid-filled spike sliding in and out, leaving no part untouched.
Vents hitching, Optimus’ pace slightly falters. Feeling a different kind of heat start flaring up from under the other physical feelings experienced, a need to coat and stuff your insides with his thick glowing release. Wanting to feel tighten on him as you shout his name while squirm from being filling completely. Now wanting to feel the splatter of his excess as it paints your inner thighs, only now remembering how badly he missed the heated frame of another. Wanting to claim and breed you.
Shuddering hard, Optimus senses the change in your field. It was as if you too wanted to be claimed by him despite belonging to the opposing faction. That change also came with the gasp and loud moan of you reaching your peak, the opening of you catching and attempting to keep his length in.
Completely and utterly gone, you moaned breathlessly to his change in movement, letting the leader shift and roll you over to lay on your back to thrust more deeply into your messy valve. Responding to this, your stabilizers moved quickly to lock over his pistoning hips to help him rut into you. His body pinning your frame down with each thrust, one of his servos leaving your hindquarters to interlace with one of yours that had found itself laying above your helm. His other shifting to compensate for the lesser grip, helping the leader press and rut harder into your now bullied insides. That of which has no choice but to endure, begging for another round of his thick load. Frames trembling, hips barely leaving that slicked mess between you two that coated abdomen, array and thighs.
Before long, Optimus catches up. Still using his own hot and venting body to now cage you, helm rubbing affectionately at the side of yours, to then dragged kisses from cheek plate to intake. Groaning dazed from the sudden affection in his field and your own flutters back. Responding in kind with a moan and glossa affectionate as him explore, submitting to the attention. Accepting him, willing to be claimed thoroughly by Optimus if he so desires it. Thrusting quickly, he pulls out almost completely before slamming deep into your drenched valve, being aided by you when you had used your hooked stabilizers to hasten his need to fill you full.
With that final push, Optimus plugs your clutching valve with this big spike, grinding firmly onto you, hips snapping quick to pump you completely full of his large and thick transfluid. The finish was so intense that it took a sec for his spike to swell into a knot, both of you groaned from this new tightness and in response, you both had groaned in unison. Sound muffled by your locked intakes. He’d ensured to keep in contact with your mouth, grinding his now swollen knot into the hot, stuffed heat of your now exhausted form. Some of his seed had escaped before the knotting, now smearing across the area above and below.
Slowly, Optimus rocked his strong frame against you, listening to the muffled gasps and soft moans emitting from the softening kiss. Both of you calming down from the intensity of your actions. Pulling off your mouth, he rests his helm against your own.
Eventually, you open your optics, having closed at some point, gazed up at him above. Affectionate blue softening at your own soft gaze. Intake slightly open to vent excess heat and drawn in cooler air. The sight before him has him second-guessing his fear of being caught, not a hint of ill-intent, just a return of affection. You purr happily, bringing a servo from where ever it was to cup the side of his helm and lazily play with the audio fin there. Leaning up to quickly steal a small peck of his metal lips and he purrs in return.
Shifting a free servo, you gently trace the side of his helm with the back of it. Optimus responds by nuzzling it and your helm. His optics still focused on you.
Maybe this could work out…














