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Language:
English
Series:
Part 2 of Promiscuous
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Published:
2024-10-04
Updated:
2025-07-20
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27,264
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17/24
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34
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280
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Experimental Encounters

Chapter 16: Ratchet

Summary:

The scene we all wanted...

Notes:

(See the end of the chapter for notes.)

Chapter Text

Shockwave watched Ratchet as he worked on the Synthetic Energon formula. The medic was a quiet and reserved lab partner, most tolerable compared to the likes of Starscream and Knockout. He occasionally asked where certain tools were, maybe mumbled something to himself when a result didn’t go as planned, and he was a critical thinker. Perfect.

The Nemesis was no place for an Autobot, but Shockwave found if anyone was welcome in his lab, it would be Ratchet. There was, however, a slight problem. Shockwave was enamored by Ratchet’s mind...and his body. He couldn’t help certain thoughts creeping in at the worst moments.

Shockwave happened to turn around to ask Ratchet something when he paused. The medic had his back to him, his hip slightly cocked and a servo over it while reading the formula again on the holoscreen. The angle was divine and gave Shockwave a nice view of the articulation of Ratchet’s aft. It was taunting him. He hated it.

And it wasn’t the first time he saw Ratchet flaunting himself. No, Ratchet had to have known what he was doing because multiple times before he found Ratchet’s posture alluring. It was distracting. He was probably doing it to waste time and detract from the progress they were making on the formula. If it was intentional, Shockwave would make him regret it.

Shockwave ignored Ratchet tensely for the rest of the day, but he got sidetracked by a stray thought, an illogical thought. He imagined Ratchet pressed against a table like part of the furniture that he could just sink his spike into whenever he felt like it. He would fill the Autobot up with his transfluid until he burst. Maybe sending a holofeed to the Autobots to show them how well he treated his prisoner would be satisfying enough to fulfill the mockery.

The idea sent a flush of heat across his body. The only way something like that was possible was if Ratchet was forced to do it. But maybe the Autobot was into that. Ratchet didn’t strike him as a mech who had a lot of action and neither did he. Anyone to give attention they both possibly craved would cause at least one to yield to the other; it would be too easy then. The scientist couldn’t make up his mind how to go about this or even if he should. Seeing the mech constantly was becoming too much.

He heard Ratchet mutter something again and paused, peering back at the mech now with raging distractions cluttering his head. Looking the mech up and down, Shockwave finally had enough. He grabbed an empty container off the table next to him and aimed true to lightly throw it to appear he had dropped it. It clattered until it rolled into a vent slit in the wall almost large enough for a mech the size of Bumblebee to crawl in.

“My apologies, I didn’t mean for that to happen. I was just...unfocused. I’ll just have to wait for Knockout to come by to get it for me,” he immediately said, casually rubbing his cannon arm. While he was lying that he was completely helpless, there was a small, truthful difficulty in retrieving stuck objects too low and in spaces not suited for his girth.

Ratchet looked between him and the vent before taking the initiative politely. “Don’t worry. It happens. I’ll get it.”

Shockwave gravitated towards the mech instinctively, coming up behind Ratchet as the latter broke open the vent panel and tried to reach in on his servos and knees. It was barely out of reach as Shockwave had hoped. When the Autobot crawled in enough where his upper body barely fit, the Decepticon was all but anxious. The aft he was admiring was right in front of him...

He sank to his knees, grabbed Ratchet’s hips, and rubbed the valve panel with a tilt of his helm to study the body’s reactions. Ratchet struggled to back up but moaned at the prodding digits trying to coax him into opening.

“Shockwave-” hissed Ratchet in warning.

Shockwave answered by pressing his interface panel directly against Ratchet’s aft, making the latter tense. “I am not a fan of distractions, Autobot. Let me fix the problem so you will finally keep to yourself.”

Ratchet was silent, abnormally so until the medic slowly spread his legs more. Why he did so, Shockwave didn’t know. The Synthetic Energon could wait if Ratchet was that eager to be a whore. It was all but confirmed when the valve panel retracted.

The medic seemed amused and said, “Who said I’ll stop distracting you?”

It sounded a little odd since he was so hostile at first, but Shockwave’s mind was focused only on the availability of fragging Ratchet. He grinded his closed interface panel against the revealed mesh, slowly making lubricant leave streaks on him and heard the medic whine. Instead of spiking him immediately, he placed his cannon arm on Ratchet’s back and eased two digits into the valve. Ratchet’s voice was starting to echo in the vent. Shockwave pitied the poor bots who had to deal with that but continued fingering his prisoner regardless.

“Optimus Prime’s lapdog. Who knew the rumors would be true.” Ratchet pushed back against now three digits he sank into him, and Shockwave couldn’t help but admire the persistence in trying to get off so quickly. “Did Optimus ever play with you like this?”

“Just shut up and spike me,” Ratchet scowled.

Pushy. But whatever the doctor ordered. Shockwave pumped his digits listening to the medic try and keep his voice down and clutch uselessly at the vent tunnel. He recorded the audio for later personal use like music to his audio receptors.

Another digit, then another, was added over time. Ratchet was desperately trying to push back against them, but Shockwave held him still. He wanted the mech to make as much noise as possible just to humiliate him.

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Megatron had Knockout looking over his limbs when they both paused upon hearing delicious moans. It kind of threw them off and slowly, both looked up at a ceiling vent confused. It took them both a second to really register someone was getting banged when the sound suddenly spiked.

“And I thought only you could make bots moan like that,” Knockout snickered.

The warlord raised a brow at him before it melted into a deadpan smirk.

In other areas of the Nemesis, several bots heard it as well. Soundwave was immediately searching for the surveillance of just where it was occurring out of morbid curiosity, Predaking was at a loss of what to think about it in general, and Starscream rolled his optics irritably. The Vehicons were the first to make jokes about it when the rumors started spreading.

--------------------------------

Shockwave was in bliss pounding his enemy from behind. His spike relished the tight heat. Ratchet’s lubricant coated his appendage leaving strands of it to drip off onto the floor and his thighs.

“Ah! Primus! Is-Is that all you’ve got?” Ratchet tried to sound intimidating, but it just made Shockwave hornier.

“I’m afraid-umph-dear Ratchet, I am your god here,” he replied.

It was a bucket list item for sure to frag the Autobots’ medic. Ratchet was of the same mind, a rare equal, and that made him intrigued before. This was indeed a gift from Primus to have the chance to do this, and he was not going to disregard the opportunity despite of any criticism his superior or peers had.

He pressed his hips flush against Ratchet’s aft to rock into the motions and drag out a nice tension he created. Ratchet had no complaints as he pressed back to the hilt of the spike. Shockwave felt the pressure becoming too much and went into overdrive thrusting to milk every degree of pleasure he could.

“Shock-Shockwave!!! AH, PRIMUS, YES!!!!”

Shockwave had to pause when the valve walls constricted to crush his member. He humped the orgasming mech to try and achieve his own before the valve unclenched to release him. He managed to do so with a growl, rolling his hips and finally backing up on his knees. Transfluid was still ejecting from him when he pulled out and made a mess on the floor.

Ratchet remained halfway concealed in the vent, the empty container forgotten. Eventually, he helped the mech out who looked at him with a wince. He didn’t care about Ratchet enough to assess if he injured the medic. That would be Knockout’s job. He left the Autobot there in their mess, turning to resume work when his servo was caught.

“W-Wait, don’t you want something else from me?” Ratchet asked on his knees with his servos on the ground between his open thighs. It gave Shockwave a beautiful view of the valve. And the optics...oh, the lustful optics were luring him in.

He presented his spike in front of Ratchet’s faceplates. “If you’re offering...”

He would later find out why Ratchet was so willing. It was a distraction to buy the Autobots time to find him and delay the production of the Synth-En. But, at the moment, there wasn’t a single regret as the medic’s mouth sufficed in the aftermath of their interface.

Notes:

We all noticed how Shockwave oddly got along with Ratchet in Synthesis. We all know what was going on there. Shockwave would have done something if it wasn't a kids show. Let's face it.