Three's A Crowd
Continuity: IDW1
Rating: Explicit
Relationships: Megatron/Rodimus/Starscream, Megatron/Rodimus, Megatron/Starscream, Rodimus/Starscream
Characters: Rodimus, Megatron, Starscream
Warnings: Alternate Universe, Polyamory, Established Relationships, Frottage, Threesomes, Sticky Sexual Interfacing, Light Bondage, Light Dom/Sub, Under-negotiated Kink, Not Beta Red
Summary: In which Rodimus gets more than he bargained for when interrupting an intimate moment.
Crossposting: AO3 | Dreamwidth
Fic under cut. See AO3 for complete notes. Related to: A Bouquet of Firecrackers (AO3)
Rodimus knew what he was doing; that really only added to his culpability in the situation. It underscored the embarrassment that was starting to seep into his spark as he stood there in the doorway to Starscream’s room with his hands faux triumphantly on his hips, spike out and up.
Megatron, on his back on the berth with his wrists lashed to the corners, blinked at him in confusion. Starscream, seated on his legs with his hands out of sight between them, glowered over his shoulder at the intruder.
He had presumably been busy pressing their spikes together before being interrupted but Rodimus couldn’t exactly see through him.
The weight of their shared gaze made Rodimus feel like melting into the floor and disappearing down a storm drain never to be seen again.
He couldn’t even really claim ignorance after overriding the door’s access codes and shouting: “Player three has joined the game.”
There was no coming back from that, let alone also having his spike out for everyone and Primus to see.
He and Starscream had never been friends, barely tolerating each other in the same house solely for the sake of their shared partner. Group, uh, activities had never really been on the table, but… he had heard some fascinating noises from beyond the door just before he’d burst in.
Wrecking the mood like a large red character from Earth media that neither Megatron nor Starscream would recognize. At least he hadn’t said “oh yeah.” One saving grace.
“In case you couldn’t figure it out on your own, Rodimus, this is a private event—“
Rejection.
Though he shouldn’t have been surprised, given that what Starscream’s modus operandi.
“Oh, Starscream, don’t be so selfish.”
Oh. Maybe there was some hope, after all. Good thing he hadn’t put his spike away then.
“That’s rich coming from you.”
Starscream clicked his tongue in aggravation, but the rhythmic bouncing of his elbows meant he had resumed his stroking. Megatron let his head and shoulders fall back to the berth.
Rodimus, however, wasn’t sure if he was being invited or if Starscream was just ignoring what Megatron said. A common enough occurrence in this household.
“Are you going to get up here or not, twerp?”
An invitation then.
Rodimus hurried over and scrambled up onto the berth… only to pause with his leg in the air and his hands on the berth’s edge.
“Where, uh… am I supposed to go?”
His guess about the spike situation had been spot on; Megatron and Starscream were pressed together, with Starscream’s hands mostly wrapping around both shafts. Prefluid seeped out of both spikes with the slow pumping motion. It made his own spike twitch in want at the sight.
But Rodimus wasn’t exactly sure how he was supposed to fit into this picture.
A drop of his own prefluid involuntarily dripped to the berth.
“That’s your problem.”
“Uh, Megs, help me out here—“ His leg was getting tired being held out in the air like this, like he was demonstrating a poorly choreographed kick. His actual kicks were so much cooler.
“Rodimus, you might recall that I’m a little… tied up at the moment.”
“Did you just tell a pun?”
Megatron chuckled, the whole berth jiggling under his weight.
“Who can say.”
Starscream loudly cleared his throat, apparently tired of any banter that didn’t serve his purposes. Rude. He was allowed to talk to Megatron too.
Rodimus stuck his tongue out at him before just plopping himself on top of Megatron’s middle. After some awkward scooting, he ended up straddling hips right above the spike tangle that Starscream had been busying himself with.
The angles would be a little weird, but surely they could make this work.
“Hey, let me just, uh, get in there—“ He tilted his hips forward, lightly tapping his spike against the backs of Starscream’s hands. He probably couldn’t grab all three of them at once; that would be ridiculous, but…
“No.”
Those hands just kept at their work, sliding up and down, the knuckles occasionally brushing the underside of his own spike as it bobbed in the path.
“No? What? You expect me to just watch?”
“Actually, I expect you to go away,” Starscream said, not so much as faltering in his rhythm, “but Megatron insists on indulging you. He’s gone soft.”
“That looks pretty hard to me—“
“That was rhetorical,” Starscream hissed, cutting him off.
Megatron bucked up underneath them, nearly unseating Rodimus whereas Starscream hardly budged other than to shift the posture of his wings for balance. From the motion, Rodimus’s spike smacked into the others, leaving a small lavender smear of his fluid.
Starscream sighed.
“This is why your hands are on timeout—You’re terrible at holding still and can’t keep your hands to yourself.”
Rodimus actually liked that last feature, but maybe now wasn’t the time.
The only way to get anywhere would be to make a bold move of some kind. He stuck his hand around behind Starscream’s forearm, grabbing his spike and stroking upward.
Starscream bristled and squawked, immediately pulling his hands free with all the offense of someone who had just been unceremoniously goosed.
“Let go of me, you—“
“Look, I’ll get your side; you get mine, okay? It’ll be the easiest way with three of us.”
Probably. It would at least sandwich them all together.
Starscream narrowed his optics at Rodimus, full of judgment as usual.
“Please don’t rip my spike off though; I’d like to keep it.”
There was a scoff but a blue hand quickly wrapped around the back of spike, pressing its sensitive underside against Megatron’s in the middle. Rodimus shivered.
“Prove it then.”
“What?” he asked, starting a quick pumping motion with his hand on Starscream’s spike, “What’s that supposed to mean?”
His thumb and fingertips dragged along Megatron’s sizable spike between them, as much as he could reach though that was unfortunately rather limited. His hands weren’t that large, so his palm was mostly taken up by the shaft of the mech who, most days, would rather he disappeared. No wonder Starscream had been using two hands.
If only it wouldn’t in the way of their arms, he’d try it himself. There wasn’t really enough room here for effectively jerking it, so to speak.
“Prove you want to keep it; prove it you actually want it.”
Starscream’s hand squeezed—too hard—to make a point.
“Ow—“ Rodimus winced until the pressure was released. “How am I supposed to do that? Of course I want it.”
“Overload then. If you don’t do it quick enough, you don’t want it and I’ll relieve you of the burden of your spike.”
“Are you serious? You can’t be serious. That’s ridiculous.” Rodimus looked at back over his shoulder. “Megs, is he serious? There’s no way he means that; he can’t mean that. That’s kind of extreme—Doc, you’ll put it back on for me, right?”
Other than softly groaning and arcing up, however, Megatron didn’t intervene. Apparently he was content to let Starscream and Rodimus work this out themselves. Or he knew something Rodimus didn’t, which was entirely possible.
Starscream chuckled and slid his palm up and down, the way eased by their combined prefluid smeared along the smooth interlocking plating. Rodimus wasn’t sure if he ought to be scared or not, but the way those fingertips lingered on the ridge where the head joined the shaft sent shivers up his spine.
He turned his head back around to watch.
“Hurry up; I don’t have all day,” Starscream warned, all while pressing his own hips forward and rutting into Rodimus’s grasp. Of course he would enjoy being in a position of power over someone else—That would explain why Megatron was tied up actually. “Get on with it.”
As if he weren’t the one drawing this out by keeping his hand moving at a teasingly slow pace.
“What’s the rush?”
“If you like using your spike, you’ll hurry up, understand? If you’d rather not, if you’d prefer to use other parts of your array instead, you don’t have to hurry. You won’t need to worry about it.”
The grin he received was cruel, but shallow. Maybe this was some kind of joke. This had to be a joke. It was hard to tell when Starscream was joking and his jokes were usually at someone else’s expense. Was he being punished for interrupting?
Rodimus did, in fact, prefer to use his spike, but… surely Starscream wouldn’t really just rip it off of him if he didn’t overload to the seeker’s liking. That would be insane, absolutely deranged behavior. There was no way—Megatron wouldn’t let him do that, right?
Somehow, despite the unease in his spark, the thought of desperately needing to overload or else made his spike twitch and throb, more fluid beading up in the slit on the head.
“Quickly now, before I get bored.” Starscream hummed to himself, still idly dragging his hand up and down, a stark contrast to his threat.
“Come on,” he pleaded, frantically jerking his own hand up and down on Starscream’s spike as encouragement. “That’s not fair! I can’t just overload on command!”
Starscream groaned, rutting more forcefully against the spike squished between them.
“Then you must not really want to keep it, hm? It sounds like you should be honest with yourself.”
Said a notorious liar.
Not that Starscream’s well-polished hand didn’t feel wonderful, aside from the alleged danger.
“If you don’t want it, I’ll just take it.” He squeezed Rodimus’s spike tightly at the base and gave it slight jerk. For a brief second, even as he moaned, Rodimus feared he had just popped the damn thing off, but thankfully it was just an reiterated threat. “I won’t even charge you for it.”
“Don’t do it—I’ll… Just wait. I’ll overload, I will, but I….”
He just needed time.
He bucked his hips forward, trying to get more stimulation as he rubbed the sensitive underside of his spike against the back of Megatron’s. Tension was beginning to build in the tip of spike, a dangerously fuzzy sensation threatening to radiate downward.
“Are you sure? Better hurry up. Get on with it.”
“You’re the one moving slow!”
“It’s hard my fault if you aren’t enjoying it enough.” Starscream leaned forward, practically in Rodimus’s face as he leaned his free hand on Rodimus’s leg for better leverage. He still thrust roughly up against Megatron’s spike. “You don’t have that much time left to prove you want this. You should take this more seriously.”
Megatron shuddered underneath them, as though he was trying and struggling to hold still while he was all that separated Rodimus and Starscream. He was stuck in the middle between their unmatched, desperate wriggling, but hadn’t yet objected to being caught in a strange jousting contest.
“Hurry!” Starscream hissed against the side of Rodimus’s head, twisting his hand around the tip of the spike in his grasp, wringing a groan from Rodimus’s throat. “Hurry or I’ll—“
The threat never came as they both released, Starscream shouting and Rodimus yelping in surprise.
They were both covered in messy spurts of fluid, but at least the hand that had threatened to remove his spike retreated to a safe distance.
Smirking, Starscream sat upright again, his relaxed wings hanging down behind him.
Ventilating hard, Rodimus flopped backwards against Megatron’s chest, ignoring the muffled grunt as he inadvertently smacked the larger mech in the face with one of the fins of his spoiler.
As his armor pinged from excess heat, he was stuck with a moment of clarity.
“… You were just messing with me the whole time, weren’t you?”
Starscream scoffed, idly stroking the one stiff spike remaining, the one that had been pressed between them.
“Obviously, what good would actually ripping off your spike do? Besides, if there were an actual problem, you should have used the safeword. That’s what you get for interrupting where you weren’t invited, you obnoxious—”
Safeword?
Rodimus leaned up on his elbow.
“Wait, hold on. What safeword?”
“Bah!” Starscream lightly smacked Megatron’s spike. “I would have expected you to have told him the safeword long before now! What have you two been doing all this time? Vanilla lovemaking? You should be ashamed!”
Maybe he should have just taken the embarrassment and left when he had opened the door earlier.
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