Pairing: TFA Megatron/Shockwave

Rating: Explicit

Details/Themes: Size kink, Autobot form kink(?), jealous Megatron, roleplaying

Requested by Catrinne (Guest)

Among the wreckage that was the Nemesis, courtesy of Starscream, the remaining Decepticons tore the shredded material away and rerouted the scraps towards a new project their leader had in mind. Project Omega was one of the greatest feats of Cybertron and they all had to admit Ultra Magnus was pretty damn incredible for pulling that off. Now, of course, it was their turn.

Shockwave did his best to make sure the parts required for the Omega clones were mainly unscathed to provide excellent armor for the titans. Lugnut, however, wasn't as careful and was simply throwing damaged or unnecessary parts into the pile. This made the spy glare. But before he could say anything against it, all the comm. links among the crew sounded.

"Shockwave! Get to the main deck immediately!" That was Lord Megatron…and he sounded angry. Great.

"You enraged our glorious Megatron?" Lugnut growled, central optic dilating in fury.

The purple tank did his best not to give in to the urge to charge at his teammate. "Oh shut up, you brute sycophant."

As he made his way through the halls of the warship or at least what were supposed to be the halls, he couldn't help but wonder what did he do wrong? He couldn't recall any incidents or blunders on his part throughout his spying career. The whole concept seemed illogical for someone like him. He rarely if ever made any mistakes. Unless Megatron still was ticked about his recent feud with Lugnut, then that was understandable but even then he hadn't really done anything.

When the door to Megatron's slightly damaged throne room opened, Shockwave froze in confusion. His leader was nowhere in sight. A few seconds passed before he decided to leave only to suddenly find himself slammed against the wall by the throat. Who else but his superior stood in front of him, optics holding such fire which he was very unfamiliar with.

"My liege? W-what did I do? There must be a misundersta-ACK!"

The warlord hissed, "Do you really think I wouldn't notice how much attention you've been getting as your Autobot disguise? You let yourself be gullible to play with the Autobots like that Velocitronian half breed, Blurr is it? You belong to me, nobody else! Not even an Autobot should be able to taint your loyalty to me!"

The Decepticon subordinate was hit by the realization of what his master meant and if he could he would have frowned. "I did not fraternize with the enemy, my lord! At most I only lowered myself that far to get information for the Decepticon cause but I assure you, I did no such thing throughout my time on Cybertron!"

He was dropped and landed on the floor on his aft, causing him to rub it in irritation. When his master's expression abruptly changed from anger to that of a mischievous smile, Shockwave actually began to become quite fearful.

"Then why don't you prove it?" Megatron mewled, taking his spot on the throne. He patted his lap invitingly and for once, Shockwave was dumbfounded at what he was offered. But if it meant demonstrating his dedication to his superior and him alone, he would gladly take the chance.

Unquestioningly, he approached his master but did not object when black servos brought him to straddle the grey thighs. He only held onto Megatron's forearms as he leaned against the warm chassis, his port fluttering with anticipation. He was abruptly pushed back slightly while his lord continued to grin.

The tyrant chuckled, "Longarm is the treacherous one in this situation, is he not? I need to remind him of his place."

So that's the game Megatron wanted to roleplay? So be it. Shockwave gave a low moan as he changed into the traitorous Prime disguise, cunning blue optics hungrily meeting lustful vermillion. He was definitely smaller than Megatron but that didn't mean he couldn't impress his master.

"Blurr was good, but can you prove to me you can do better, Decepticon?"

"So you did frag the blue racer?"

Shockwave shrugged, "If you must know when I let him have me, I only thought about you."

Megatron began running his servos up and down the waist of the former intelligence officer as he was unfamiliar with the body. Well to be fair, Shockwave never had the time to show off his new form in this way but so far, the warlord loved the curves and wide format the body gave. What Longarm lacked in height he made up with in width. Kissing the lips of his subordinate, Megatron growled possessively and clutched his hips as he rubbed the underside of them.

He smirked again when the Autobot pretender arched to meet his grasp. "That's a good Autobot. Show me how much of a traitor you are."

"Of course, my liege!" Shockwave purred as his valve opened in response to his superior's pressured spike being released. He spared no seconds and took the huge appendage to the hilt. He actually had to pause for a moment to adjust due to the fact that his Longarm disguise also changed his interface array, making it tighter but he wasn't complaining as the feeling of being overstuffed set his circuits on fire. Leaning his helm to the side so his master could bite his neck, the spy let Megatron take his hips and slam himself into his stretched opening. He could barely contain any sounds as the red optic on his forehead flared to life with each thrust.

Megatron snarled while his spike was clutched so aggressively. Why hadn't he thought of this before? Longarm was becoming his new favorite toy each time he made the Autobot scream. So tight, so perfect that he couldn't think of anything to match it. When one of his thrusts hit a very delicious bundle of sensors, Shockwave let out a cry loud enough that he was sure everyone on Earth could hear. The valve he was so eager to fill finally contracted brutally, milking him empty within seconds as he groaned against Longarm's neck.

They both slouched upon the throne. The larger mech had his dear scientist lie upon his chassis in comfort as their internal levels cooled down.

Shockwave still grinded down upon his master's spent member slowly to enjoy the ripples his port loved to produce in the aftermath. He didn't dare remove himself as he found the transfluid stuck inside his plugged entrance feeling absolutely wonderful when he moved. If he continued, he would no doubt bring himself to overload again.

He snagged his leader's lips with a flustered smile, "Blurr doesn't have anything on you, my lord. He is nothing compared to you."

AN: A counterpart to the common Shockwave "Longarm"/Blurr ship. I am surprised this pairing isn't very common. It's on the verge of not being a rare pair but it still lacks enough support which is why I added the Longarm part in it to make it seem rarer.