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Filth has become a constant in Mirage’s life. Earth seemed to be full of mud and muck, and by extension, so was his Earth loving conjux. Hound simply couldn’t stay clean! Mirage spent time helping him wash up each day, only to have his hard work erased the next day by whatever Hound had gotten himself into on a mission or a sightseeing excursion. It’s rinse and repeat every day.
Mirage was sick of it!
And the worst part was that he wasn’t even sick of Hound being dirty. Often, he saw that muddy armor and couldn’t help but smile a little. Hound clearly enjoyed exploring and the mess that came with it. While Mirage wasn’t a fan of being filthy, his partner was.
No, he was sick of how revved up Hound being dirty made him.
It was a terrible feeling, really, and it came coupled with terrible fantasies. Fantasies of putting Hound over his knees and spanking him for getting so messy, of taking him out to the biggest mud pit he could find and giving him exactly what he wanted. Mirage hated to think about how filthy the latter would make him, but in a way, even that’s exhilarating. They could bathe together. His sweet Hound would need aftercare after such rough play.
”U-Uhm, hello? Raj?”
Mirage pulled himself from his thoughts. Hound was calling him? He’d been out sightseeing; had he gotten caught by the Decepticons?
“Hound? Are you alright? What are your coordinates? Should I bring backup?” Mirage asked.
“No! No, please don’t…” Hound whimpered.
“Are you hurt?”
“No…I-I need some solvent.”
“Solvent? What did you get into?”
“It’s just a lot of muck and I don’t wanna…track it into the base.”
Mirage gritted his dentae. “Coordinates, please.”
“Please don’t bring anyone else, okay?”
“I would never. I’ll bring solvent.”
“Thanks, Raj.”
Mirage closed the line and got up with a sigh. He wondered why Hound was so adamant that he not bring anyone else. It wasn’t as if no one else had ever seen him filthy.
*****
Luckily, Hound wasn’t too far away.
Mirage found the spot with ease, maneuvering through the trees to find a clearing that was home to a rather large mud pit. Mirage crossed his arms as he saw Hound right in the middle of it. Of course. His conjux simply couldn’t ignore the call of such a thing.
Primus, why was his spike inflating?
“Come on, Hound. Out. Let’s get you cleaned up.” Mirage said.
“Raj…please don’t make fun of me.” Hound said.
“Well, darling, I’m sorry, but I will be calling you a filthy mech. You’re mine, though, and I love you.”
“No, it’s not about that, I…”
“It’s okay, Hound, I’m not angry.”
“My panel is open.”
Oh, Mirage was sick of this. He’s so sick of harboring all these thoughts and desires. Was it so wrong to indulge himself right now, when his embarrassed conjux looked so adorable admitting that he’s opened himself up here? He had cleaning supplies. It’s not like they couldn’t be presentable upon returning to the Ark.
Setting down his supplies, Mirage dipped his pede into the mud. It’s sticky, and horribly gloopy and gritty. He’ll need his paint redone after this. He submerged his leg, and then his other. The mud wasn’t as deep as he’d expected; he waded over to Hound and stood over him, drinking in the soft glow of his facial biolights. He’s trying to hide himself in the muck. So shy. So sweet.
Mirage needs him.
“Do you know how much it pains me to see you filthy?” Mirage asked, spreading Hound’s legs with his pede. “I bathe you and you return like this. It’s like you want to get a rise out of me, my dearest.”
Hound’s a good mech. He was embarrassed, but he spread himself further for Mirage, until his leaking valve was visible. The glow of blue biolights and transfluid were dulled under a layer of mud, and Mirage’s panel opened with a click. He tucked his servos under Hound’s tibulens and pulled him closer, his spike rubbing against Hound’s valve.
“Mirage, I - we don’t have to do this, I know you don’t like -“ Hound stammered, voice glitching and he felt the head of Mirage’s spike against his external node.
“Don’t you worry about that. You want to be filthy? I’ll make you filthy.” Mirage said.
He leaned down and pressed his lip components against the cabling of Hound’s neck. Hound’s backstrut arched beautifully, perfectly, as Mirage patted his valve. He rubbed his servo against it, spreading mud against the sensitive mesh. From the way Hound’s hips bucked, it must have felt good. Mirage chuckled.
“Is this why you like to come play in the mud~? It feels good on your special parts?” Mirage asked, pushing two digits into Hound. “Your precious bloom needs dirt to grow, does it~?”
“It has a good t-texture.” Hound tried to explain.
But for the first time, he has filth inside of his valve. Mirage’s digits had been covered in mud, and Hould could feel the grit on his nerve cables, scratching in a way that made his valve gush with fluid. Coupled with Mirage’s scissoring and curling digits, he could imagine himself overloading just like this.
“Look at that sweet face.” Mirage purred, pulling his digits out and spanking Hound’s valve, engine revving at the squelching sound it made. “Do you want me to interface with you right here? To push your face in the mud and overload into your pretty valve?”
Oh, that sounded wonderful. Hound couldn’t speak, afraid his voice wouldn’t work. He nodded. Mirage motioned for him to turn over, and Hound obeyed.
Smack!
Hound yelped in surprise. Mirage’s hand was firm against his aft, and before he could think, it came down again.
Smack!
Smack!
Smack!
“My naughty mech.” Mirage said, continuing to rain slaps down on Hound’s muddy aft, “coming home so messy all the time. Did you ever think about how much I wanted you? How I wanted to make you even filthier?”
“S-Sorry, sir!” Hound whined.
“You best be. How are you going to make it up to me, sweetspark~?”
“By letting you use me!”
“What a good mech~ Let out your energon sacks, I want them to be muddy, too. I want all of you filthy.”
Hound panted as he unhooked his chest plate. He’s never done anything like this before. It felt strange to let out his large breasts in the open like this, but he owes it to Mirage! He opened his chest and his sacks came out, heavy and swinging, his nozzles dragging in the muck. Mirage’s servo dips into the mud before grabbing one breast and coating it in the sticky brown. His digits toy with the nozzle briefly before moving to the next one.
And just as quickly, Mirage’s servo is gone and his spike slips into Hound’s valve.
“Ah, Raj!” Hound exclaimed, pushing back against Mirage.
“Sh, sh, pretty mech~” Mirage soothed. “Don’t you worry, I’m going to get you all muddy on the inside, too. We’ll have to wash out your little valve when I’m done~”
The calipers of Hound’s valve clenched around Mirage. Mirage rolled his hips a few times to loosen them so he could pull out and drop some more mud on his spike before pushing in again. With each thrust, Hound seemed to lower himself further into the muck, his energon sacks swaying. Mirage put a servo on the back of Hound’s helm and gently pressed down until Hound’s face was in the dirt. He quickened his thrusts as he felt Hound clench around him again.
Their overloads were simultaneous.
Hound’s valve gushed with warm transfluid as Mirage’s spike unloaded. Mirage put his servos beneath Hound and lifted him to rest against him as he thrusted upward once more, his muddy digits pushing into Hound’s mouth. Once he felt Hound relax, Mirage kissed his neck and let his spike slip out of the green mech’s valve.
“Dirty mech~ Let’s get cleaned up now, hm?” Mirage asked gently.
“I wanna fix your paint later…” Hound mumbled.
“That would be lovely. Always so thoughtful.”
“Love you. Filthy mech.”
“I am rather filthy, aren’t I?”
“It’s okay. I like it.”
Mirage chuckled. “And I like you, my sweet darling.”
Mirage helped Hound up and led him from the mud pit. Maybe being a filthy mech wasn’t so bad.