The reconstruction of Iacon City was a long process, one Anvil oversaw alongside Bulkhead. The Autobot was strict when he needed to be and caring at all other times about the crew he was working with. He stressed the importance of being careful, and Anvil knew he was right to direct them in such a way. As part of the Nemesis' maintenance crew, Anvil understood all Bulkhead wanted, being no stranger to the demands for a perfect job. It was why he offered to help the mech in the first place.

Anvil did find himself liking the mech more than he wanted to admit. Watching him lug large plates and other items impossible for any Vehicon to lift was inspiring and had Anvil staring sometimes. The only thing he didn't like was the dirt and particles Bulkhead tracked around the building with the materials brushing off on him. He liked cleanliness but he knew better than to expect it from this type of job. Still, it wasn't a bad look per say on the Autobot.

Bulkhead soon left and told them to take the rest of the day off. As he helped clean the remainder of the job site, the Vehicons who strived to help finally left to their temporary home assigned to them. Anvil was the last to leave, double checking everything was secure when he spotted something stuck beyond a wall through a hole big enough for him to climb through if necessary. Getting on his knees, he peered in to see loose metal and made an angry grunt.

He always hated scraps left about. It was his biggest peeve in any job. Some might claim he was a perfectionist, and maybe he was, but he saw it as everything had a place and a purpose. If not used properly or at all, it had to go. Pulling out the pieces made him growl. By the time he got all of them into a pile where he wanted them, he brushed his servos off for a job well done...until he realized he was covered in remnants of metal dust and other particles that turned his purple armor nearly dark silver. Horrendous scattered blotches of color made him look like he had been rolling around in the dust of the construction site willingly. Technically, he did but that was beside the point.

"Nasty."

"Is everything okay?"

Anvil was a bit surprised to see Bulkhead walking up from behind him, but he quickly nodded, "Y-yes, I was just tightening things up around here. I've always done stuff like this for as long as I can remember. It's just a tic of mine."

However, as he spoke, he noticed Bulkhead was focusing more on his dirty chassis than him. He wanted to express his disgust at himself for being so unclean but the look he was given made him pause. There was something in the glance over he received that made him curious as to why Bulkhead would be so fixated on such a stupid thing unless...well, he wasn't created yesterday. The shock of the idea a kind soul like Bulkhead had a perversion of working hard and getting dirty had Anvil at a slight loss of how to respond. But everyone had their kinks, he supposed, and it wasn't exactly a one-sided thing.

Bulkhead liked seeing him covered with remnants of work, and he liked Bulkhead with his strong physique muscling around things that could have dust or other particles coating him. He was unsure of how to approach his crush when Bulkhead seemed to naturally pick up on the awkwardness of the situation.

"Do you need help getting cleaned up?" Bulkhead asked innocently.

Anvil didn't answer as Bulkhead retrieved a bucket filled with clear oil made for tough grime and a sponge. He soaked the sponge in the oil and offered to help scrub off the dust and other materials. Curious as to what the mech would do, Anvil outstretched his arm and watched Bulkhead gently reveal his natural purple armor now glossy from the oil.

The sponge got to his chassis, and he tensed as oil dripped down and left trails across his dusty finish. When Bulkhead went to his backside, he knew what the mech wanted to do but pretended to focus only on helping him. Admirable but Anvil wanted something too. He was tempted to make things more interesting and upon playing a scenario in his processor, his daring side decided to go through with it. It wasn't like he could lose anything.

As Bulkhead scrubbed between his tires on his shoulders, he opened his valve panel and more oil slid down from the sponge being pressed against his upper half. Feeling the cool liquid running off the folds of his entrance almost made him moan but he refrained in favor of letting Bulkhead find out his own little perversion as a surprise. Fingering his valve without the Wrecker noticing made him even hornier. He had heard Bulkhead could be daft sometimes in perspective from Breakdown's rants when he was on the Nemesis but now, he had proper use for what bots assumed was a flaw. It wasn't in his agenda to keep himself hidden the entire time, just long enough to get himself off.

The sponge started to go down further among his spine, and Anvil caressed his valve with both servos, one to penetrate and the other spreading himself. His mind wandered from putting on a show to just how big Bulkhead was if the other set of oddly pleasing rumors about the Autobot were true. He wasn't the first Vehicon ever to eye the mech; the Nemesis had many Vehicons that expressed interest in the Wrecker in multiple ways as well as other Autobots.

Anvil heard Bulkhead's breath hitch and the sponge didn't move but the oil still ran down him. He merely stopped his motions to purr, "I'm still quite dirty, unless you have another method, Autobot?"

The sponge resumed and it was Anvil's turn to be shocked when he felt more oil running down his backside, curving to flow off his valve and the servo tending to it. He pulled out to catch some of it before entering again, shoving the liquid across his inner walls. He kept pace as Bulkhead appeared in front of him.

Anvil watched him resoak the sponge but instead of placing it on him, Bulkhead merely squeezed it over his chest and the flow left trails down his abdomen, legs, and all in between. His valve grew irate and tense as his movements continued with the oil getting everywhere. He overloaded subtly and Bulkhead only watched him make a spectacle of himself.

"You were waiting for this, weren't you?" Anvil asked, amused. "You were watching me bending over and all that filth gathering upon me. You like getting dirty."

"It's, uh, not something I normally go about telling others but yes," Bulkhead responded shyly.

Anvil then kneeled among the dust-covered ground of the construction site as his previously cleaned spots were coated again by the plume of particles that drifted upward when he went down. The Anvil from an hour ago would have despised the dust like a plague but now, he loved it knowing his crush did too. He could see the bafflement in Bulkhead's expression, but he knew what he was doing when he took a handful of the dust and dropped it on himself, smearing the dirt across his once pristine frame. He chuckled as some of it got on his valve.

"I guess you're just going to have to start all over again with that cleaning regimen, huh?"

Anvil was surprised to see Bulkhead open his spike panel and saw for himself the large member of the rumors.

The green mech suddenly said, "I'll give you something you can't clean off, Decepticon."

The Vehicon wasn't opposed to the tone as he pressed forward when Bulkhead began stroking himself. Anvil sighed when he rubbed his valve in tandem with the Autobot's movements. Feeling the particles of dust being pushed against the sensitive protoform made Anvil lean forward to prop himself on his unoccupied arm while impaling himself with his digits. He peered up as he arched, watching the spike and imagining it entering him.

Bulkhead then placed a servo on the back of the Vehicon's head and guided him closer which the latter obeyed. Anvil knew what he had planned and eagerly pawed at his valve with his second servo covered in dust from touching the ground as the heat within flared to a breaking point. Several more pumps and Bulkhead rumbled as he released transfluid on Anvil's face and chassis. Anvil purred as the Autobot's cum slid down his frame. His valve rippled moments after, and he clutched his thighs together as transfluid hit his leg and crawled down his inner thighs.

Bulkhead grinned, "You look good like that. I can make your sorry chassis even filthier if you want."

Anvil nearly had a third overload just hearing that. He didn't care anymore about the cleanliness. He wanted to be covered in Bulkead's transfluid so badly. He stood up quickly, letting Bulkhead's optics rake over his tarnished form before the Vehicon grabbed his spike and started jerking him. Anvil was abruptly pressed closer to the mech before being picked up and placed on a nearby abandoned work bench.

The splotches of transfluid and dust mixed well, and Bulkhead chuckled low as he aligned his spike with the Vehicon. Anvil all but caved to the Autobot. He joked inwardly how he switched sides to be Bulkhead's bitch. There was slight discomfort in realizing how big the spike would be entering him and he knew Bulkhead had a similar thought when the Autobot reached for the bucket of oil and gestured to it to use with Anvil's permission.

The Vehicon nodded and whined needily as the oil splashed on his chassis and flowed off the work bench. It didn't get rid of a whole lot of dust particles, instead making them only sparkle and Anvil loved the sight. He grew even happier when Bulkhead slicked up his spike before easing in with a grunt. He started at a decent pace, but Anvil wanted it faster to the Autobot's surprise.

"Ah, yeah! There you go! More! Please!"

Bulkhead did as the Vehicon begged and thrust in hard, servos digging into the work bench as Anvil was split open as wide as physically possible. Feeling the oil and dust being pushed inside him with each jab made his valve feel like never before. He wanted more, lots more and Bulkhead obliged his desperation.

Anvil had no clue how many times he overloaded before he was forced into another charge, but Bulkhead kept on trucking which he loved. He knew his back was rubbing against piles of dirt and dust left on it, shredded metal and particles that would take forever to clean. But he could care less.

"Come on, Wrecker, wreck me!" He cried.

Bulkhead leaned over him panting as he gave nothing but his best. Just then, he overloaded, and Anvil felt hot transfluid being forced into his gestation chamber. The Vehicon made a noise of satisfaction knowing his internal chamber was now the dirtiest, tainted part of him. He wrapped an arm around the back of Bulkhead's neck as the latter nuzzled his faceplate.

"You know, I think I need an oil bath now. Care to join me, boss?"

Bulkhead seemed to light up upon hearing that purr, and Anvil just clung to him happily as he enjoyed the feeling of the Autobot's spike repressurizing within him.

AN: And there's Bulkhead's little playtoy. Anvil's only exception to dirtiness is when he is defiled by it. Less contact sex this time and more mutual self-pleasure but hey, they had fun, didn't they?