So, has anyone else noticed that Raph and Donnie get little to no interaction in the show? Seeing as they're my brotp, I couldn't stand for that, so I decided to start this! Nothing special, just a bunch of little one-shots about the two and their great dynamics. if you have an idea for a situation you'd like to see them in, let me know! This story isn't going to end anytime soon, and I need all the prompts I can get! This story can also be found on my Tumblr, the link to which is in my profile! Now, without further ado, enjoy the story!

I don't own them.

Donnie spent a lot of time in his lab. More time than was probably healthy, really. He had to be forced out for training, and he never ate with the family, instead grabbing his food and retreating. And that was if he ate at all. He was still working when everyone went to sleep, so whether he slept was anyone's guess.

He probably assumed no one noticed these habits, but Raph kept a close watch on him. He didn't want his brother passing out in the middle of a battle because he was too stupid to sleep once in a while. Most days, Donnie manage to keep himself alive pretty well, but other times, Raph wasn't sure if he was a genius or a complete moron.

Tonight was one of those nights. Raph had stepped out of his room to get a drink of water and found a slightly swaying Donnie standing in the dark room and watching the coffee pot brew. Seeing as the pot was full when Raph retired to his room, he had to have been guzzling the stuff.

Walking softly as if loud noises would startle the turtle back into his cave, Raph filled a glass with water. As he did, he studied his brother, trying to gauge how long it had been since he had gotten a full night's sleep. Bags under his eyes and constant yawning made the answer pretty clear.

"You need to sleep, you know." Donnie jumped slightly, looking at Raph as if just noticing he was in the room. He squinted at the clock behind Raph, eventually giving up on reading it in the dark.

"I am sleeping." He responded softly, returning to the task at hand and filling a large mug with coffee. "Would you like some coffee?"

"Dozing off in your lab is not sleeping!" Raph groaned. "Your lab will be there in the morning, but if you don't start taking care of yourself, you won't be!"

The response was slow blinking as Donnie downed his mug of coffee. Setting the cup down, he nodded, staring at Raph almost sympathetically. "I'm getting by just fine, aren't I? I really don't see why you're making such a fuss." He turned back to the coffee pot, filling his cup once more before walking towards the doorway.

Not going to let it go, Raph lunged forward, grabbing Donnie's shoulder. This resulted in hot coffee all over the ground and the mutant. Giving him a dirty look, Donnie walked back to the pot. "I hope you're cleaning that up."

"Why won't you just sleep? What is so important that you can't take a break?" Raph asked, ignoring the statement.

Donnie took a long time to answer, staring at the counter for what seemed like hours before sighing. "I've got a thousand things that all need to be done at the same time, that time being as soon as possible."

Almost instantly, Raph remembered every time he or Leo or Mikey had asked him to make something, had asked him to get it done as soon as possible. It was all stupid, silly things, like hovercrafts and missiles, and the hothead had always assumed he forgot about the requests as soon as he heard them. He wasn't actually supposed to make them.

Mentally slapping himself, he stood in silence as Donnie pushed past him. The slamming of a door knocked him out of his haze, and he followed, knocking on the door and half-hoping he wouldn't answer.

The door barely cracked open, and one russet eye stared out with the look of someone who had just spilled every one of his secrets. "Did you need something?"

Raph pushed the door open, rummaging through the metal scraps on the desk until he pulled out a crumpled piece of paper. Donnie always kept a list of things he needed to work on when they were children, and he had kept the habit as they grew. What should've been a small list was a paper crammed with words, with bullets in the margins and question marks after every idea. There was only one thing crossed off, a small sentence crammed in the corner.

Turning back to the slightly terrified looking turtle, he stepped forward, shaking his head. "You aren't actually supposed to make this crap, moron! No wonder you aren't sleeping, you don't have time for all of this!"

Donnie didn't respond, sitting down and shifting through the machinery on his desk. He made no indication that he had heard his brother, and he kept his head down.

Pulling up a chair, Raph sat beside him. "I'm not sleeping until you do." Picking up a shape piece of plastic, he pushed it in of Donnie. "What's this for?"

And that's how they worked for the rest of the night, neither of them mentioning the earlier conversations