"Py, what the hell do you think you're doin'?"

Pyro had snuck up on Engineer, a cold rag and a paper square in their hands. They tucked a short strand of brown hair behind their ears, smiling at him with blue eyes. A devilish grin adorned their face as Engineer turned to them. Before he could react (or do anything but swear), Pyro grabbed his arm, pulling up his shirt sleeve and placing the paper square on his wrist. He tried to wriggle away, especially when Pyro pressed the cold, wet rag to his skin.

"Jesus, Py! What the hell-" He stopped when he saw Pyro mouthing something. Numbers. They were counting. But counting what?

Finally, Pyro pulled the rag off of his arm, gingerly peeling the paper square off. Below it was the image of a campfire. Engineer looked up at Pyro in confusion until they turned over their bare hand to reveal a wrench painted onto their skin.

"Are these...temporary tattoos?"

Pyro nodded excitedly. They ran over to where their suit lay on Engineer's bed and pulled an envelope out from under it, putting it on the desk in front of Engineer. He picked it up and looked through it.

"You...sent away for Team Fortress tattoos?"

They nodded again, grinning. He chuckled. They were so freaking adorable it drove him mad. He stood up, kissing them on the forehead and sitting back down.

"I'll never take it off."

"What is zat on your arm?" Spy asked. Engineer had rolled his sleeves up to fix one of his sentries, and Spy had happened to be passing by. At Spy's question Engineer jumped, yanking his sleeve down. "None'a your business," he said, scowling. The Spy just laughed and walked away, unlit cigarette dancing in his fingers.

The RED Spy turned BLU when Engineer shot him in the back. "Gonna have to try harder'n that, Frenchie!" he yelled.

After dinner, Engineer found Pyro in his room, their hair longer and of a darker shade, their body shorter and more feminine, the backs of their hands...blank.

The tattoo must've come off in respawn, Engineer realized, and he sighed, moving forward and taking their hands in his own. "It's alright, Py. You didn't know. It would've come off eventually, y'know."

They nodded sadly.

"I know," he said. "It would have been nice if it had stayed. Say, you've got more of those things, right?"

They nodded, pulling out the envelope. Engineer ruffled through the sheets of tattoos until he found a cute little bear. He held it up for them to see. "How about this one?"

They shook their head.

"How about this...bee?"

They shook their head, harder this time.

"Alright. What about...is this one of my turrets?!"

They just about grabbed it out of his hands, nodding vigorously. "Alright, alright. Hang on." He walked over to the sink in the corner of his room, grabbing the rag from that morning and soaking it with freezing cold water. He grinned evilly as he walked back over, setting the tattoo up on Pyro's wrist. He pressed the cold rag down on their arm, and they squealed with discomfort, trying to pull away. He held their arm steady for thirty seconds, then released it, and they pulled their arm in, trying to warm it up without rubbing off their tattoo. Engineer tossed the rag into the sink, still smirking at Pyro's wounded expression. He turned their hand over, kissing it lightly. It felt weird, but right at the same time. Engineer wasn't a passionately romantic man like Spy, but he knew what to do to make a girl blush.

Pyro might not be a girl, but the gesture worked. They blushed, gasping at the contact. They leaned forward, jumping off the bed and into Engie's arms. He lifted them over his shoulder, spinning them around. They giggled softly, and when he set them back down on the bed Engie felt himself lean forward and kiss them on the forehead. They wrapped their arms around his neck, and he wrapped his arms around their back and pulled them in closer, hugging them. He let himself keep them there for a few minutes, then put them back on the bed. They stared up at him in confusion, and he blushed, rubbing the back of his neck. "I've got some more work to do, Py. After the power went out a few weeks ago...I've been tryin' to make some modifications to it, and it's not happenin' quickly. I need to focus. OK?"

They nodded sadly, understanding. He hated to see them disappointed like that, but if he had gone any farther he wouldn't have gotten any work done, and he wasn't used to putting off work for personal reasons. He kissed them on the cheek quickly before going back to his work, and tried to ignore the feeling of their eyes on his back. Eventually, Pyro fell asleep, struggling due to the lack of music, and Engineer put all of his focus into his work.

He woke up the next morning at his desk, with a thermal blanket draped over him. His face was covered in Team Fortress stickers.

[Author's Note: Big news! One Day for Pyro now has an ask blog on Tumblr! asknonbinarypyronfriends is a blog run by me, specifically for you to send your questions and ideas in! I'll check the ask box often, so send stuff in!

Pyro is super freaking childish though. All the mercs are just big children. Especially Medic and Spy. They're all just adorable adult children.

Next chapter is shorter, but I'm working on better ideas and I thought the next chapter's topic had to be addressed.]