Hearing his own voice laughing was daunting. It was a fierce echo, very unlike him, and he knew, for a fact, he wasn't crazy. Isolation was not a precursor to any madness he could detect. What spooked him was he didn't know where it was coming from, who was insulting him. It wasn't common but he noticed whenever Megatron came around or a few other officers, it would appear and scare his forces.

There were other noises as well, obscene ones that troubled him. Hearing his voice echo moans and uncharacteristic laughter drove him up a wall. He sometimes had to storm his own citadel in search of the origin but never found them. One time, he finally caught the son of a bitch.

Shockwave heard them and ran to the area he narrowed down as the location of his mimic only to freeze when he saw himself. His cannon arm support cable that came down from his back was currently rubbing between the legs of the imposter. Somehow, the mirrored form had placed their left leg over the cable to straddle it and was lifting their arm high enough to make the cable grind against the valve displayed. Part of the thick cable had a fair deal of lubricant glossing it.

Never in Shockwave's life had he ever thought to use the weapon cable for that. It was solely a power enhancer to ensure maximum damage output for every blast that also doubled as a quicker cooldown mechanism. It was not meant to be something to grind on...though it now was kind of appealing to see it used like so. But then his attention was drawn to the imposter.

Watching himself charming and seducing Vehicons to cater to his whim was not a logical visual. As the troops were coddling his clone, Shockwave threw back his audial fins irate.

"Who are you?"

The imposter Shockwave paused and the Vehicons looked confused. Apparently, he now had an idea that this mimic was using his visage to get his own troops to play with them. It rattled his core at the thought.

"I'm you, don't you see?" His voice said back.

But there was a hint to the pronunciation, a slip of a slightly different tone. Shockwave was always monotone, very rarely otherwise unless angry. Casual remarks never had an uptick in them and when he heard it, he knew this was a shifter. And there was only one Decepticon who was known for being abusive of its power.

"Makeshift," Shockwave hissed.

"Oh, well then, the jig is up, boys," Makeshift chuckled. The Vehicons were peering between the two Shockwaves and fled, realizing their mistake.

Shockwave paid them no mind, only focusing on the mech still mocking him by grinding against the misused cannon cable.

"You know, Shockwave, you really have a fine chassis, but you don't do anything with it. So disappointing," his voice still scoffed back at him. Makeshift leaned back on the one servo Shockwave's form had and moved his cannon arm to continue pulling the cable, emitting a small moan. "What I wouldn't give to see this from my perspective."

Shockwave stood there fuming but he was unsure of how to approach kicking Makeshift's aft for the humiliation. He found himself glancing down constantly at his valve being tampered with.

"Like what you see? Narcissistic much?"

"Shut up!"

He didn't like this. He didn't like Makeshift getting into his head. A part of him was very confused seeing himself masturbating, but he knew it wasn't him...yet the thought was not leaving him. The more he watched Makeshift, the more his own valve began to react. Phantom feelings were a phenomenon he only dealt with once, his cannon on the painful spectrum. Mirror therapy was the cure for that. This...

Makeshift as Shockwave took a gamble and began stretching his valve lips so the linked cable could run across the delicate inner petals. Shockwave watched him roll his hips to rock down harder against it with playful, tantalizing noises. It helped none his own valve was beginning to leak a little as his body was fooled into thinking it was a reflection of what should have been occurring with him.

He tried to be the better mech and finally walk away to save his senses from the horror of witnessing himself get off to...himself, but Makeshift was always a petty prankster.

"So, you're just going to leave me to defile you more? I kind of like this chassis; I think I'll keep it and have some Decepticons swing by and use me-"

Shockwave turned on his heel and was on Makeshift pointing his cannon at his helm. "Don't you dare!"

"And what are you going to do about it, Shocky, punish yourself?" Makeshift growled lustfully.

Shockwave never expressed such a sound in his many years, and it threw him off greatly. Finally, he had enough and said back, "Yes."

Since Makeshift prioritized his valve, so did Shockwave. He shoved Makeshift down flat on his back and climbed on top of him, wrapping the cannon cable around his servo and pulling it hard. Makeshift gave an uncomfortable grunt as the cable was too tight against his irritated valve. Shockwave didn't care about his discomfort and seated himself on both the cable and the imposter's valve. Makeshift's posture looked worried. He should be.

With both valves together and Shockwave's servo gripping the cannon cable pressed between them, the scientist gave Makeshift no quarter. He kept his servo near Makeshift's helm so the latter could see him pulling the cable as tight as possible to torment the copycat mech while it was Shockwave's turn to taunt.

He groaned as he moved his hips, and his valve enjoyed the new sensation of humping Makeshift's and rubbing on the cable link. Had he thought of this before, Shockwave inwardly had to admit he would have done it. He looped the cable around his servo once more to make it even tighter to grind himself on it.

He peered down to see Makeshift trying to rock back against him to relieve himself of some pain Shockwave was inflicting by forcing the cable to assault the sore folds. Unfortunately, Shockwave was not in the mood for mercy.

With each roll of the hips, their valves were meshing together with exchanged lubricant. Shockwave moved harder with a purr feeling his chassis go into overdrive to compensate for the rising lust. He liked seeing the Makeshift as himself; it made him believe he really was riding a mirror and using his weapon to fuck himself.

"Shockwave, damn! E-Easy!"

He slowed from a brief second before taunting back, "Why? I'm just punishing myself exactly how I like it."

Seeing the words bite Makeshift in the aft, Shockwave all but devoured the fear before prioritizing his accumulating overload coming forth. He didn't need distractions, but this was an exception he was quite enjoying. He arched with each thrust against the other's valve and the trapped cable deliciously making the sensors of his valve flare. Harder, faster, he gave up pulling finally to chase down his sudden greediness for completion.

His overload had been building yet it still took him by surprise as he made heavy motions to ride Makeshift's abused valve until he got all that he wanted from it. The weaker overload of Makeshift forced the mech to abruptly mass shift back into his original form with a groan. Shockwave nearly crushed his hips from the change and missed the cannon cable he wanted to still use to some degree.

"Fuck," the black mech with white optics cursed with his real voice. "You really know how to spoil the fun."

Shockwave didn't let him crawl away, pinning him down again. He pressed his valve down on the abdominal ridge that blended down into the interface array now that Makeshift's valve was a little smaller to get a good rut against.

"Shockwave, wha-?!"

"You been taunting me all this time with your cheap gimmicks, stealing my voice to use at your leisure, and you use my body as your own. Who says we're done playing mine?"

Makeshift cowered as the bigger mech glared down at him. Shockwave was going to give him something to shut up with, especially as revenge for mimicking his voice so childishly. If Makeshift wanted his body, he would get nothing in return as Shockwave planned on using him for his own pleasure since he started all this scrap in the first place by being a teasing bastard.

Makeshift's heated faceplates said all as Shockwave got his spike out and sat on the smaller mech's chest uncaring of his valve still having residual stimulation. He was a little amused Makeshift was being submissive to him as he demanded wordlessly for the troublemaker to start sucking. If Shockwave became generous in the possible future, maybe he would have Makeshift take his spike as him.

AN: I saw a fanart once of Shockwave with a sexy waifu kind of pose and he had his gun cable that attached from his back to the cannon between his legs loose, not rubbing against his valve as depicted here, but the idea for this came from the implication that fanart made, but I couldn't see Shockwave doing it...enter Makeshift who absolutely would.