Working with SV-667, or Silver as he was dubbed, as an apprentice was beneficial for three reasons. One was the Vehicon knew his way around the lab having picked up on Shockwave's routines and studied the trade. The second reason was Silver was his most trusted enforcer, never risking confidential information and would do some dirty work to ensure that if necessary. And the third reason was a little more personal...
"Silver, I require your assistance," he said with a husky voice over the commlink.
Shockwave heard him after a minute appear in his lab and wander looking for him. He knew the exact moment the Vehicon turned the corner because he heard a gasp and a mutter. He was caught dropping glass and gave a powerful rumble, flexing his servo and popping his shoulders loose with audible bangs. His spine and winglets readjusted.
"Sir?! What did you do?!"
Shockwave barely turned his helm to look at him. Both their attention turned to the discarded container partially shattered on the floor in a puddle of green fluid. Shockwave did it out of amusement; Silver did it by instinct. He then turned around with his green optic facing Silver with a hiss of steam through his vents.
Silver all but was disappointed. "No…don't you dare tell me you took the Synth-En-"
"To pull a page from your book, everything should be tested," Shockwave insisted. "I tweaked the base formula a little and needed to see what would happen. You are here in case something does happen."
"That's got to be not good for you though. Maybe you should drain that-"
Then Shockwave said something that would even make him pause normally. "Why? Test results so far confirm enhanced senses, stronger feedback to the control cables of the body with faster rotary movements, and I do believe it has a higher interface drive…in theory."
Seeing Silver stiffen and slowly back away made Shockwave step towards him with a chuckle. He popped his neck and rolled his shoulders again full of energy he hadn't had in some time. He felt like a new mech, younger for sure, and all the perks that came with that. There was no secret Synth-En made regular Energon burn faster but that was a day of use. He estimated twenty-four hours to have his fun before fatigue followed when it wore off.
"No, Shockwave, come on, this is not the time to do that. Your systems could be in freefall. Remember the pheromone inducer, how I crashed after three hours of nonstop interface? Yeah, think about that before you come to regret it."
Shockwave wasn't bothered at all by the idea. At least he knew this would last a whole day. He sang out tauntingly, "Silver..."
The silver-scarred Vehicon suddenly ran. Out of sheer instinct, Shockwave sprinted for him. The smaller mech was fast and agile, most Vehicons were but this wasn't the first time Silver gave him a chase out of fun. Of course, he had to outwit the mech first before anything could happen. Here, he was just as fast.
Silver found some amusement in it and laughed a little. "Shockwave, are you really that depraved?"
"Something like that," he growled possessively.
Ever since he had Silver as an official apprentice, relieving him of all field duties most Vehicons had to do, they had each found their experiments kept them close in more ways than one. He had been wanting to try the Synth-En for some time and who better to help test its performance than Silver?
When the Vehicon tried to slide over a table, Shockwave caught him, dragged him back and used his newfound strength to effortlessly place his apprentice over his shoulder. He cupped the smaller mech's aft as he took him out of the lab and down the halls towards his chambers. They got some weird looks from other passing Vehicons but Shockwave didn't care.
"Shockwave, no-o-o," Silver nervously laughed, "we need to make sure-"
"The best way to make sure anything works is to have a second opinion around and since we are going to be spending plenty of time together, I think you can help me monitor my symptoms up close and personal," purred the scientist. "It is only logical, right?"
The Vehicon seemed unable to dispute him. As soon as he entered and sealed his chambers, Silver was placed on the berth, and Shockwave climbed over him with a hefty ventilation like a bull. The time to play was Shockwave's and Silver was along for the ride.
They started off basic with Shockwave nuzzling Silver's helm, bringing his interface array to rut against the smaller mech to make him emit back-to-back little noises he adored. He began growing determined by grinding their closed panels together harder. Silver relented first and revealed his valve that was being stimulated by the rocking movements.
Shockwave just wanted to hear his voice climb at the rough pace they were now at. Even if his parts were concealed still, he felt their pleasure from the tension, a prelude to what was going to come. Silver gripped his cannon arm and right shoulder with a lustful whimper until he screamed for Shockwave, the sound he wanted to hear desperately.
"Trial run, umph, seems positive for enhanced interface drive, but more tests are required," Shockwave huffed. His spike was dying to come out.
With a possessive rumble, he let it out to immediately sink into Silver's heat. The Vehicon moaned loudly, clawing at his frame. Shockwave all but began to pound into him as he pressed his full weight down.
"Ah! A-AH! Primus! Shockwave!"
His internal drives felt amazing. Shockwave readjusted after a while to sit up and hold Silver's hips to see his spike disappear and reappear in a blur with each strong thrust. It felt wonderful, so much energy and so much bliss. His engine was roaring. The only issue he found with the Synth-En was the large interface drive meant higher sensitivity. He overloaded midway in getting Silver though, and that was not acceptable.
Ready to go again in a second flat, Shockwave pulled out and lifted Silver to secure his legs from under so his back was towards his chest. Transfluid and lubricant oozed out of the valve while his spike entered from below, sinking all the way to the hilt and pushing out more fluids to coat his spike and the floor.
The Decepticon scientist made Silver bounce while holding him secure. His system loved it, and Silver seemed just as infatuated with his legs up near his chest bobbing uselessly amid his cries. Shockwave rammed him repeatedly chasing his second overload while Silver was close to his.
"Do you like this? I think we can say the Synth-En has some good redeeming qualities after all, don't you agree?"
"Gah! AH! Yes! It-OH-IT'S GREAT! SO-O-O-O AMAZING! PLEASE! FRAG!"
Hearing Silver going insane made him groan as the valve suffocated his spike with a sudden orgasm from both of them. He had to stop his thrusts due to the sensitivity becoming surprisingly numbing.
"Damn..."
When he let Silver down, the Vehicon moaned and stumbled to catch himself on the berth with shaky legs. They both breathed hard while Shockwave popped some plating loose to ease the tension.
He chuckled, "I can keep going. What's say you, my dear apprentice?"
Silver panted, "Give me a moment. Remind me...not to do this without preparation again...from either of us."
Shockwave complied though he was incredibly high strung at the moment, so he just occupied himself by stroking his spike at the sight of Silver bending over to lean on the berth. The Vehicon peered back among the rising sounds just watching him which only enhanced his experience. He kind of wanted Silver to stay in that position.
He got closer the faster he moved and hovered over Silver's form taking in the sight of the swollen valve just calling his name. One thing he loved about his apprentice was he let Shockwave play with him at his leisure. With the Synth-En flooding his veins, he knew he had to be kind and give Silver a break or else risk hurting him. While he could be cruel, he didn't want his favorite toy to be broken.
Shockwave ejaculated onto the Vehicon's aft and spine with a predatory grunt. The Synth-En made him want more. Silver knew what was coming just as much as he did. His green optic glowed with greed and lust. Silver was finally reading to be bred when he spread his legs a little wider.
"How much energy did you say you have?" Silver asked.
Shockwave purred, "Enough to fill you with twenty clutches of sparklings."
The Vehicon's visor held no emotion but from the brief shiver, he could tell there was a flare of eagerness but also slight worry. He would harm him, just flood his chambers until he was full of his essence.
From taking him bent over the berth to making his back scratch up the wall, they went at it like rabbits. Shockwave was relentless with his system never giving up. Silver was just along for the fun at this point, letting his superior do everything to him.
Outside of the room, it was loud and never-ending. Inside the room, it was a complete mess with Shockwave lying on the floor making Silver now ride his spike out of breath but still going. So far, Shockwave was immune to that...until nearly ten hours later much to his misjudgment.
Somehow, he burned through the dose a lot quicker due to the constant activity. It was estimated at twenty-four hours, but he failed to consider that it was without strenuous usage. And he plowed through it at an aggressive rate. As predicted like with the pheromone inducer last time with Silver, Shockwave ended up crashing out on a random spot on the floor feeling dead inside and very pained.
He groaned any time he attempted to move while Silver lied beside him valve still open but dreadfully tired. They both laid there wiped out completely. Ironically, Shockwave found it a suitable price for having excessive fun with his apprentice. Now, if only he could maybe learn how to control the insatiable lust addiction for safer use...
"I told you so," yawned Silver.
Shockwave knew he was right. He didn't bother correcting anything for the sake of his uncomfortable miscalculation. Would he do it again though? Absolutely.
AN: I brought Silver back but figured it was Shockwave's turn to be the guinea pig. Of course, the aftermath of it wouldn't be in his favor. I decided to do this one because it's another favorite of mine.