Hey guys! I've been gone for a while I know… sorry! Lots of stuff's been happening but I'm back!

Guest asked for a oneshot starring Donnie, it took me a while to think of something and all that came to mind is this… Basically it's just Casey and Donnie having a fight but Casey takes it too far.

Rated T (For swears) Genre: Hurt/comfort/angst/family

Sorry if it's not good.

Too Far

Donnie rolled his eyes as Casey butted in once again, did he want to learn or not?

He was currently over at April's apartment with only the two humans for company as he was helping them study for their exams, his brothers had heard this and refused to join.

''Casey, stop interrupting'' April scolded. ''Donnie's trying to help''

''Well maybe I don't need his help.'' Casey crossed his arms smugly. ''I'm gonna ace this exam''

''Oh yeah?'' Donnie smirked. ''What's the square root of pi?''

''Um…'' Casey faultered. ''That's not gonna be a question''

''It's 1.77245385091'' Donnie sighed. ''And April has that question highlighted meaning it was mentioned as being part of your exam''

''We'll have calculators'' Casey mumbled.

''You know how to use a calculator?'' Donnie asked knowing the answer.

''Yeah!'' Casey snapped.

''For equations?'' Donnie raised an eyeridge.

''uh… well…. I can make the equation so it'll spell boobs'' Casey chuckled immaturely.

''C'mon Casey'' April hissed. ''We need to know this stuff! Carry on Donnie''

''Gladly'' Don nodded.

''You're such a nerd!'' Casey huffed as he fell back on the bed.

''I'd rather be a nerd than an idiot'' Donnie replied as he looked over April's math book.

''At least I'm popular!'' Casey grinned nastily. ''All the girls are all over me while you can't pull anyone!''

''I highly doubt any girls are interested in you'' Donnie looked over at Casey with a frown. ''Besides that's not a fair argument I can't be popular because I can't meet any humans''

''Even if you were human you'd still be alone'' Casey shrugged. ''Nobody likes a know-it-all!''

Donnie's frown deepened slightly wth hurt.

''I'm not alone. I may be a mutant but I'm definitely not alone''

''Yeah you are!'' Casey laughed mockingly. ''You think your brothers like you!? HA! They don't give a fuck about you! They think you're annoying too! Raph's always telling me how you make 'im feel bored and annoyed!''

''That's not true'' Donnie shook his head. ''We're a family''

''So?'' Casey smirked. ''You think families are all loving and happy? No! Your family hates you! You're useless in battle and you suck in training, you're not a ninja you're just a dork!''

''CASEY!'' April scolded. ''Stop it!''

Donnie studied Casey for a moment, he couldn't hide his hurt.

''Raph really thinks that?''

''Yeah!'' Casey chuckles nastily. ''So do Leo and Mikey!''

Donnie swallowed thickly and bowed his head.

''Casey's being stupid Donnie'' April put a hand on her friend's shoulder. ''Just ignore him''

''What he's saying makes sense though'' Donnie murmured. ''My brothers never hang out with me… I'm always ignored and told to shut up''

''told ya!'' Casey grinned before stopping. ''Wait… what?''

He hadn't expected to upset Donnie so easily, he had only been teasing.

''I gotta go'' Donnie stood up quickly and disappeared out the window.

''Shit'' Casey gaped. ''I-… I didn't think it would bug him that much''

''You idiot!'' April screeched. ''You know Donnie's insecure! How could you tell him he's unloved!''

''I didn't think he'd take it seriously!'' Casey cringed. ''I went too far…''

April shook her head angrily.

''HEY!'' Both humans jumped as thee mutants jumped in through the window. It was the turtles.

''Guys!'' They yelped as they stood up.

''We brought pizza!'' Mikey grinned as he held out six pizza boxes.

''Yeah'' Leo smiled kindly. ''you guys have been working for hours so we decided to give you a break''

''Besides'' Raph shrugged. ''Donnie didn't eat any lunch so we figured he needed some brain food''

''Where is he?'' Mikey asked as he looked around.

The two humans winced.

''He's gone'' April sighed sadly. ''Some things were said and Donnie left…''

Michelangelo put down to pizza boxes in shock, he looked at his two eldest brothers.

''What was said?'' Leo asked trying to keep a cool head.

''Casey'' April turned to the nervous teen. ''Tell them what you've done.''

''what did you say to my li'l brother'' Raph stepped forward threateningly, he knew Casey and Donnie were kind of rivals and that whatever had been said had been bad enough to hurt his usually patient brother.

''I-uh… I kinda told him a few lies'' Casey cringed before frowning. ''But he was being to annoying and was acting all smart that I needed to bring down his super big ego!''

''Casey!'' Raph snarled as Leo and Mikey each held one of his arms. ''Donnie is smart! He doesn't have a big ego! He's always been insecure and if you didn't realise that then you're an idiot''

''Casey told Donnie that you had been telling him that you all found Donnie annoying and a bit of a know-it-all'' April told them. ''He said that every time you two met you would insult Donnie behind his back''

''LIAR!'' Raph pulled against his brother to try and get to Casey. ''I've never done that! You asshole!''

''Raph'' Leo soothed. ''Calm down… we need to find Donnie''

''Good luck with that'' April shook her head. ''Casey told Donnie that he was alone and that nobody cared about him... Donnie never runs away but that pushed him over the edge, there's nowhere I can think of that he would go''

''Well you don't know him like we do'' Mikey sighed. ''I'm pretty sure we know where he is''

''You two stay away from the lair for a couple of days until everything's sorted'' Leo warned. ''You may be our friend Casey but Donnie is our brother''

Michelangelo picked up the pizzas and followed Leo through the window.

''C'mon man'' Casey called to Raph. ''You can't hate me for this''

''You told my brother that I hated him'' Raph glared at the boy. ''I'm gonna kick your ass if Donnie's hurt''

Casey watched Raph leave before crossing his arms.

''Snitch'' He spat, April rolled her eyes.

Donnie sat on the edge of a run-down warehouse as he looked over the river's water, the Brooklyn bridge looked grand in the dying light of sunset.

He'd always liked the sound of the river's waves trickling passed, the sound of the cars coming and going. The sight was beautiful, there were prettier bridges in the world but this one was symbolic and that was something Donnie liked.

He knew that bridge symbolised the road to success for many in the Brooklyn slums, if they went across that bridge then they knew their problems would be solved.

Donnie admired that glimmer of hope humans always seemed to have.

''Hey'' He blinked at the voice and looked over his shoulder, his brother came over and sat with him.

''Hi guys'' Donnie smiled tiredly. ''What're you doing out here? I thought you wanted to spend the night in the lair?''

''We did'' Leo answered gently. ''But then we decided to bring you some food only to find you'd run off on your own''

''Oh… sorry'' Donnie spotted the pizza boxes in Mikey's lap. ''Why've you got six pizzas?''

''We did get a couple for April and Casey but after we heard what they said we decided they didn't deserve any'' Mikey nodded, he clearly believed he had given them the worst punishment. ''I bet they regret it now!''

Donnie chuckled weakly at that.

''I'm sure they do Mikey''

Mikey grinned proudly.

''But guys'' Donnie sighed. ''Don't fall out with them over me, please''

''We can't just let them bully you like that'' Leo defended.

''April didn't do anything wrong and Casey was just frustrated… he has exams coming up and was annoyed at me knowing the answers'' Donnie reasoned.

''That doesn't give 'im the right to lie to you'' Raph grumbled. ''Everything he said was a lie. You know that right? None of us are annoyed by you and we don't hate you, I've never talked about you like that ever''

''I know Raph'' Donnie nodded.

''Then why did you get so upset?'' Raph frowned.

''Because he was right… I'm a useless ninja and an insufferable know-it-all…'' Donnie replied softly. ''Everyone will get fed-up of me eventually and I will be alone…''

''Never'' Leo answered before anyone else could. ''You're a brilliant ninja and your brains makes you even better, none of us will ever let you be alone. You're our brother and we love you''

''You should be proud that you're smart Donnie'' Mikey sighed as he laid his head on his brother's shoulder. ''We're proud of you''

''You shouldn't have listened to Casey'' Raph crossed his arms. ''He's full of shit''

Donnie chuckled lightly.

''I guess you guys are right… I was just being stupid'' He smiled genuinely to his brothers. ''Thanks''

Mikey handed out the pizza boxes and they ate together as the sun went down.

''You're way too nice Donnie'' Raph shook his head. ''You can't forgive everyone''

''Yes you can'' Donnie frowned slightly, ''It wouldn't be fair to fall out with someone just because they made one mistake''

The three brothers stayed silent, they knew this wasn't the first time Casey has lashed out verbally towards their quiet brother.

''Besides… he's just a bit of a hot-head… I'm used to dealing with that'' Donnie smiled at Raph, he chuckled and bumped his should against Donnie's.

''Just promise to never listen to Casey again?'' Mikey looked up at Donnie who laughed.

''I promise''

The brothers nodded happily and continued to finish their dinner as the bridge lit up with lights.

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