This Can't be Happening

Raphael heaves a large, drawn out sigh of boredom as he flicks through the TV channels. He's been watching the football most of the evening, but now it's finished and Raph is looking for something else to take his interest. 

Donatello sits beside him, He was watching a documentary before the sport came on, but now he's drifting off to sleep disinterested by the football. Don had previously tried to discuss the documentary with Raphael but to no avail. Raph flatly refused to entertain it to the point of threatening violence so Don pondered it on his own for a while, with a reluctant intent of getting up and starting work on his new project for the lair. 

It's been a busy day for Donny, and his eyelids begin to droop as he considers the convenience of a local and readily available fuel source which unfortunately conflicts with his reluctance in wanting to be in physical contact with its concentrated form, coupled with the unlikelihood of his brothers assisting him to gather said fuel source. Leo might, with persuasion. Raph and Mike will probably prove to be difficult to convince. Bribery may work with Mikey… but Raph… Don exhales a little sigh and glances across at his channel surfing brother. Don acknowledges he's more likely to get a punch for his trouble.

Raphael can't find anything good to watch on TV. He's thinking about going off to lift a few more weights before bed when he accidentally stumbles across an adult channel. He sits up amused, but Don has begun to snore softly beside him and Leonardo is on the other side of the lair reading a book by candlelight. The atmosphere is strangely quiet and relaxed. No sign of Mikey to share a joke with. Huh. That's no fun. Where the hell is he? Then Raph remembers Sensei wanted to speak with him.

Leonardo puts the book back on the shelf, then stretches and yawns before standing and passing Raph and Don. Leo glances purposefully at the TV.

"Turn it off, Raph."

Raphael's finger has been hovering over the button to change channel until Leo says that. Raph shoots him a defiant smirk and returns the remote to his lap with hopes of irritating Leo further. 

Leonardo gazes steadily back at Raph. He knows what's coming. Raphael is so predictable.

"Make me." Raphael crosses his arms and glares up at his brother.

Leo can't help rolling his eyes in irritation, but he won't allow himself to be antagonised for something so minor. He wants to go to bed; he has a demanding day planned tomorrow. 

Raph watches Leo head into his bedroom with a little disappointment, and a simmering anger. Damn Leo thinks he's so superior walking off… and with that smug expression. Raph leans his chin on his fist as he glares at the humans having sex on TV. It's kind of funny and a little bit gross.

Donatello's head drops onto Raphael's shoulder right then, prompting Raph to push him off irritably. Don glances up at him through tired eyes and then lays his head against the back of the couch once more.

"I can't believe you are watching this stuff. It's obscene." Donatello mumbles. His tired eyes are narrow slits through which he peeks at the TV. "And wholly unrealistic."

"An' how would you know?" Raph retorts. "Besides, it's fuckin' hilarious, bro.'

"Whatever." Don closes his eyes.

That was kind of inarticulate for Donny. Raph looks away from him. Don must be really tired. Raphael smirks to himself and begins to consider a whole manner of obnoxious ways to startle his sleepy brother back to life, from a sudden bawling in his ear to a solid fist in his plastron. But the humans moaning on TV distract him and even make him kind of horny.

Raph is thinking how weird-looking humans are with their bare backs and spidery fingers. He can barely comprehend what it would be like not having a shell. It must be difficult without that comforting, protective layer of natural armour. Not that a human would understand that either. Raph watches the woman on TV gasp and moan, her large breasts bouncing around dangerously, fascinating him and amusing him simultaneously. Not for the first time Raphael laments the absence of female turtles in their lives. That need, the sexual drive… it can only get worse as they get older. Theirs is a hopeless situation, no turtle girls and as for having a relationship with a human, well… that's never gonna happen. 

A human girl is gonna run screaming, Raph thinks. Or even if there is some freak of a woman out there that'd be 'into' it, Raph, Splinter and his bros don't want their secret to come out. It would make life even more difficult.

Meeting April had been an accident, a fortunate one, but an accident nonetheless. After all, they were supposed to avoid the human world. They wouldn't understand. 

How many times has Raphael heard that?

Casey… well that had been Raph's mistake… and not one to be repeated, though obviously Casey is a great pal. Raphael's best bud, and Raph trusts him with his life.

But the fact is April and Casey are one-offs, incidents not to be repeated. They can't go around getting pally with humans like that all the time. Not that Raph wants to. 

Raphael's not sure if he even wants to get down and dirty with something from a different species. He'd have to be pretty desperate to indulge in that kind of fetish.

Which brings him to Donatello. Raph glances back at the turtle snoring lightly beside him. Raphael knows for a fact Donny has a crush on April and can't help but wonder if his brother would do it with a human.
Raph sees the way Don is with April, all shy smiles and wide eyes as he hangs onto her words, grinning dopily if she happens to touch him or compliment his intelligence. 

Raph snorts impatiently. Humans are funny looking anyway. Raph wants a turtle, someone like him. Reptilian at least. A mate he'd find attractive that wouldn't leave hair all over the place. 

The porn is definitely making him horny now. Raph looks away from it back at Don snoozing peacefully. Should he yell in his ear…? 

Mikey'd do it. 

Raph snickers to himself as he imagines Donny's startled reaction. 

Don's sleeping head is drooping towards Raph's shoulder again. Well, he has been pretty busy today. Raph thinks about Donny in training earlier distracted by some project he'd been working on. Don kept stopping to go and write notes in his notebook on the floor in the corner of the dojo. 

It had driven Leo nuts. Splinter had been tolerant at first but even he'd gotten a little exasperated and then calmly angry. Donny got a whack from Sensei's stick. That was pretty rare, not like Mikey who got a whack every other day.

Raphael hadn't been particularly bothered by Donatello’s distractions; he'd been too busy sparring with Mike most of the time. But he could understand Leo's frustration. If Donny had teamed up with him he wouldn't have liked it either. As it was, though, Leo had been pissed with Don and watching Leo lose his cool was always good entertainment for Raphael. 

Raph grins down at Donatello as he recalls the day’s events, particularly Leo’s frustrated expression as he’d desperately tried to keep a hold on his irritation with their nerdy brother.

So Don got the project out of his system this afternoon at his computer while Raph had been out with Casey. 
He seems pretty drained now.

Raphael looks down at his brother's serene expression and he feels a stirring in the pit of his stomach. Guess that's affection. Raph gives another little snort; maybe he'll give Donny a dead arm to wake him instead of bawling in his ear.

Don's head comes to rest on Raph's shoulder once more and again Raphael moves to shrug it off. Only instead, he feels another surge of fondness in spite of himself, and leaves him alone, allowing Don to sleep. 

Donatello's head slips an inch down Raph’s plastron as he mumbles in his sleep. Raph catches a couple of words: ‘biofuel’ and ‘plentiful supply’. Raph shakes his head slightly, rolling his eyes. Don is a total nerd; he even dreams about science. Raph gives an involuntary snort. You’d think he’d be dreaming about hot turtle chicks… or April…

Raph glances back up at the porn. He’s getting really turned on by it and their numerous fucking positions and thinks that he could really do with a hot turtle chick right about then. 

Looking back down at Donny, Raph wonders if his scientific knowledge could extend to creating female turtles for them. Surely Donny understands the process. He’d only need a little of the chemical the Utroms created. Donny would know what to do. Raphael has every faith in his brother’s unwavering intelligence. Genius, in fact.

Of course Don would say it was unethical, even if he was tempted. Leo would agree without hesitation, if he wasn’t already the first to butt in and point it out before any-one else got the chance to open their mouths. With an annoyed grunt, Raph knows he’d have to concede. He wouldn’t want to force their ostracism from society onto anyone else either. No matter how desperate he is for some hot lovin’.

Raph looks down reflectively at the top of his brother’s head. How long has it been since Don has fallen asleep on him like this? Probably not since they were kids. Mikey does crap like this all the time, but that’s Mikey for you; he’s the most physically affectionate out of all of them. You kind of expect that from Mikey. Mike falls asleep on Raph a lot, and Raph has the joy of pushing him off onto the floor a lot too. Don tends to fall asleep at his desk surrounded by… Raph frowns. He really doesn’t know what half of the junk is on Don’s desk.

Raph grins a little. Donatello's a long-winded pain in the ass a lot of the time and often comes close to boring Raph to tears, but he does have a great sense of humour and can be quite witty on occasion. 
Although he can get distracted during training sometimes, Don's still a good ninja and can easily take out any foot soldier loser, or ten. He just gets distracted by his gadgets and projects far too easily. Raph thinks about the hot running water they have, the electricity supply… free cable… And yeah…! The shell cycle. He grins. That's all Donny's handiwork. All the projects he's been working on as they've grown up.
Don fucking rocks, man. 

Without thinking Raph reaches out to stroke his brother’s head which is slowly sliding face first down Raph’s plastron. He feels horny when he realises where Don's head is going, Raph swallows a little nervously but kind of likes the feeling. 

He’s getting more aroused, looking at the top of Don’s head and thinking of the woman on TV towards the beginning of the movie, on her knees in front of the guy’s crotch. Raph imagines Don's mouth around his… 

Raph panics at that thought and quickly fumbles for the remote, hastily turning off the porn, before smacking Donatello hard on the head with it. 

Donny starts and sits up rapidly, looking ready to fight before realising all is well, sort of. He glares at Raph.

"What did you do that for?" Donny's eyes are watering from the pain, making Raph feel guilt behind his blind panic.

"You're drooling on me, bucket head! I'm not your fucking pillow, go sleep on someone else."

Don glowers as he rubs his head, wincing at the new tender spot. "Yes, all right. Calm down." Don gets up. “There was no need to hit me… you’re so…” Donny pauses.

“What?” Raph snaps back. “I’m so… what?” He scowls at Don and clenches his fists, hiding his embarrassment as best as he can because all of a sudden Raphael is horribly self-conscious and shocked at himself for thinking… for thinking what he did.

“…Never mind…” Don shrewdly takes note of Raph’s defensive countenance and knows arguing with Raph would be the wrong thing to do. He should have known better than to fall asleep on Raphael. He can be so damn touchy, so Don ignores Raph and goes to bed still rubbing his head. 

Raph alone at last can beat off to the porn, only suddenly he's not looking at the humans getting it on, he's thinking of his brother. Of Donny’s big dark eyes and the cute, annoyed expression he’d shot Raph after Raph had cracked him on the head with the remote.
Raph groans to himself in disbelief. 'This can't be happening'.

***

So Raphael is watching Donatello a lot after that. It's not like he’s obsessed, but he’s taking in little things about him that he hadn’t really picked up on before. The way he moves, stuff about his appearance, things that drive him crazy with annoyance but that he puts up with because it's just Donny being Donny, much like the way he puts up with Mikey being Mikey.

Only, he feels different about Mike, him and Mikey are best pals. Michelangelo plays on the goofy little brother role a little too well, and Raph loves him for it, for making him laugh and keeping him sane. 
But that’s it. As a brother. 

Raph’s not getting aroused looking at Mike like he is with Donny all of a sudden, which Raph is thankful for. Mike'd only laugh at him, and feeling that way about one brother is bad enough. 

As for Leo, Leo drives Raph fucking insane… he can be so smug and fucking self important. Yeah, of course Raph loves the asshole too, as a brother. Leo's great to spar with, Leo knows his stuff. Raph knows he can always rely on Leo. Leonardo will always be there for them, to protect them all. Even Raph… who doesn’t even need protecting, grrrr thank you very much you self righteous pain in the ass…. 

Though he's loathe to admit it Raph learns a lot from Leo and respects that… but he's more likely to be aroused by a squid than Leo and his often condescending attitude towards him.

Somehow Raph can’t help these new feelings for Donny, with his big gentle eyes and caring nature… like when Mikey got hit in the face during practice the day before. Raph had laughed, he couldn't help himself, stupid Mike should have been watching what he was doing. 
Leonardo was all 'you okay?' but still high and mighty. If Mike had been paying attention, if he'd been concentrating instead of joking around then he wouldn't have been hit. Raph could tell Leo was one notch away from a lecture. He just makes sure Mike's okay then turns back to the lesson. 

But Don… he checks Mike for bruising… for concussion… 

"Are you all right?"

"Owwwwww… I'm dying!"

"How many fingers Mikey?"

"Uhhhh seventy two…?"

There’s momentary concern in Donny’s soft brown eyes before he absorbs Mike’s joke, making Raph laugh out loud. 

Don rolls his eyes at Mike then. 

"You're fine Mikey. Good to go." And Don pats his brother on his shoulder. 

Suddenly Raph wants to feel Don's touch. Raphael doesn't make much of a fuss when he's hit or hurt. He just gets back up, angrier and more determined. He doesn't get the same kind of care that Mikey gets from Don. Not unless he's genuinely injured. Raphael shakes his head, then pushes it away increasingly disturbed by his thoughts. 

Fuck… Raph swears to himself. Not being attracted to humans doesn't mean you have to fucking want to fuck your broth… 

Raph swallows. Best not go there. Hell no.

Raph starts to get a little stand-offish with Don. Donny doesn't really notice, he and Raph don't hang out together all that much. They're both loner types. Donny, more often than not, is obliviously solitary as he works on his projects and machines whilst Raph is out and about breaking heads either alone or with Casey.

But Leo notices and after they finish training he asks Raph if there's a problem. Has he had a fight with Don? Raph just shrugs, says he doesn't know what Leo's talking about and pretends to be distracted by Mike as he whoops through the door in eagerness to play some new video game.

Leo turns to Don who is leaning his bo staff against the wall distractedly as he deliberates explaining his new project to Leonardo, trying to choose the words that wont make his brother's brain switch off. Don always finds this part difficult, but his thoughts are stopped in their tracks as Leo demands to know what the problem is between Don and Raph. He’s a little concerned, he says, they need to work together as a team, any issues need to be resolved or the team can’t connect. Donatello looks over at Raph and shrugs. He gives Leonardo a puzzled look before his bewildered gaze returns to Raphael. Raph pulls a face at Leo then circles his finger at the side of his head, making Don laugh. 

Leo walks away, irritated by their immaturity. Raphael can be such an asshole, he’d have thought at least Donatello would behave with a little more sense. 

Raph feels close to Donny right then even though he’s embarrassed by himself and his inappropriate feelings. Fortunately it’s clear that Don hasn't a clue how Raph feels about him, which relaxes Raph a little. He needs to prove to Leo… and himself… that there's no problem with his relationship with Don.

"There's something up with my bike," Raph says lazily.

Don looks interested. "Really? What's the problem?"

"The back wheel is sliding and…" Raph describes to Donatello in detail the problem with his bike when he rides it. "An' I've checked all that basic stuff you told me to check for… I'm sure it's the suspension though." Raph adds that last part with slight hesitation, only because he doesn't like to be wrong if he can help it.

"I'd better take a look at it then," Don beams.

Don gets what the problem with the bike is almost straight away and explains it to Raphael. It's easier for Raph to comprehend what Donny's blathering about when he has a definite interest in the subject. And Raphael loves his bike. Don shows him how to fix the problem and gets Raph to do it himself while Donny leans against the wall watching to make sure he does it right. 

Raph grins at his brother. Donatello knows how much Raph hates to rely on others too much and Raph appreciates that he understands. If Raph can fix the minor to intermediate problems with his bike himself, he doesn't have to rely on Don so much.

"Hey, listen…" Don shuffles over. "Just take it easy when you screw in the adjusters…" Don puts his hand over Raph's and demonstrates the pressure to use. "Too much rear compression causes the back wheel to slide… but too little and the bike will squat so the front might loose traction…" 

Raph concentrates at first, but Don's hand over his is too distracting and he finds his eyes slide up his brother's muscular arms and shoulders stopping at his big dark intelligent eyes.

"You see?" Don finds Raph staring and gazes back confused. "Were you even listening, Raph?"

"Yea… no. Show me again. Sorry bro. Thinking about… er… Leo." Raph bluffs. "What an asshole! Look at us, we're getting along fine!" Raph slaps Don roughly on his carapace, causing him to wince and lose his balance a little.

"We certainly are." Donatello nods, steadying himself.

"And this is one more problem I don't need to bother you with," Raph boasts, happy that he's learnt something new.

"You don't bother me." Don stands wiping his hands. "At least you listen and are keen to learn. Every time Mikey breaks the controller for the games console I try to show him how he can fix it and he just wanders off."

"Sounds like Mikey." Raph smirks. "But wouldn't you rather be researching some weird science shit?"

Don smiles. "Well, I do like to research 'weird science shit'." Don quotes with a trace of irony in his voice that is lost on Raph. "But I like this too." Don pats Raph on the shoulder and Raph freezes. For the first time ever he doesn't know how to respond to his brother's touch. But the moment is fleeting and Donny doesn't notice.

Raph wonders if he can tell Don about how he's feeling; now would be the best time without Mikey or Leo barging in and interrupting. Raph needs to pry Donny for info about his feelings for April.

"Yeah, but you'd rather be doing your weird science stuff with April," Raph says before nudging his brother hard in the arm with his elbow. "I can tell by the way you look at her." 

"I don't know what you're talking about." Don rubs his arm absently as he begins to ponder whether or not to reveal to Raphael his plan to build a generator that runs solely on sewage. He would use it to power the lair so that their stolen mains supply could instead be used as a back-up. He was going to tell Leo first, but since he was trying not to sulk when Don saw him last, Raph is now a more convenient sounding board… and more to the point it would certainly change the topic of conversation to something a little less embarrassing. Donny’s cheeks get hot when he thinks of April, he’s sure Raph noticed. 

"Ha ha ha. Yeah, right. So obvious.' Raph bruises Don’s arm again with another nudge.

"So you're just going to make my life hell over it?" Donatello gives a little sigh. There’s no point in keeping up pretence. If Raphael has noticed, it’s only a matter of time before Mikey notices too. Or is told. Don closes his eyes to the painful mental images of the next six months of teasing Raph and Mike will no doubt subject him to.

Raph is a little taken aback by Donatello’s words. “No.”

"Really,” Donny states. He’s not convinced. “I can see you turning it into your little joke. Getting Mike or Casey in on it too…"

Raph shakes his head. “As if I'd tell Casey, man.”

“Mike, then.”

Raph shrugs his shoulders. “Mike’s the same, only he does the cute playful little brother thing with her. You stare.” 

Don looks away, blushing. Raph wants to give him a quick hug but it doesn’t feel right so he punches Don’s shoulder instead and grins broadly with a wink.

“What is it about her? Because she's the only girl we know?”

Donny hesitates, massaging his shoulder and wishing his brother could express affection in a somewhat less painful manner. Strangely though, Raph is not making fun of him so Don lets down his guard a little. “She's intelligent. We have a lot to talk about. As Baxter’s assistant she learned an awful lot, much of which she is still passing onto me. It's amazing.” Donatello lets out an almost dreamy sigh. “The techniques and skills she picked up from working with Baxter… I know he’s evil but some of it is absolute genius…”

Raphael stifles a yawn as Don begins to enthuse over microchips and stuff but he’s also shocked that he feels kind of… jealous? No way… how can that be? 

Raph stares hard at Don. Donny's big dark eyes are intense as well as gentle, a little sad as he waffles on. Raph knows why. Donny feels like Raph does, he wants someone he can't have.

“Nothin' can ever come of it, ya know,” Raphael states, distracting himself by pulling a sai from his belt and twirling it around a finger.

“I am aware of that,” Don replies shortly, almost snooty. As if he needed… wanted reminding.

Raph snorts. “That's it, bro. We're alone. Destined to die never having done it…”

Don frowns slightly but doesn’t look at his brother. Jeez, Raph can be so terribly depressing on occasion; where is Mikey when you need him? Don glances at the door. A hyperactive Mikey adding his own sound effects to already existing sound effects as he plays video games is suddenly becoming very appealing.

“Remember when we were kids?” Raph asks suddenly.

Don grins at Raph.

“We were… experimental, right…?” Raph reminds him, biting the bullet as he practices a complex form with his sai to hide his embarrassment, but all the while keeping one eye on Donny’s reaction.

Donatello nods, but he's not getting it. "Yeah! Remember when I froze cockroaches in ice cube trays to see if cryogenics actually worked!” Donny rolls his eyes. “I was so stupid then, not understanding the inherent capabilities of those creatures… and then so not realising the likelihood of cell walls perforating during the freezing and defrosting process when it came to other creatures…”

Raphael stops practicing his form and stares at Donny. He is so not getting it. 

“Yeah… but no… what I mean…” Raph's voice trails off.

Don is looking at Raph with a puzzled expression, a little wide eyed. “Do you have a point, Raph?”

Why am I even trying to talk about this? Raph scowls to himself angrily, repressing more embarrassment.

“What are you trying to say…?" Donatello, usually perceptive, gazes at Raph in utter confusion.

Raphael stares back at him, his words stuck in his throat.

Don't you get frustrated… need a release…?

I want to…

We could… 

Can he say it to Don? 

I'll do you and then you can do me… you can pretend you're screwing April if you want. I don't care. I just want to fuck you Donny… 

How the hell do you broach something like that?

With your own brother? 

You can't…

You don't.

"Nothin’.” Raph closes his eyes and continues practicing his form.

Don hesitates, watching Raph, feeling like he missed something important, then he turns to go to his room but pauses in the doorway. "You know, Raph… if there's something you want to talk about, I'm here for you. We're here for you. Splinter, all of us…"

No matter how depressing it is… Don allows himself a half smile.

"Right." Raphael turns away and goes off to beat out his frustrations and destroy a couple of training dummies. Maybe start a fight with Leo. 

***

The Turtles and Splinter are at April's apartment for a social visit. Leonardo is cross-legged on the floor reading a book on Buddhism, occasionally reading an extract out pointedly with an unsubtle glance at a brother. Michelangelo is standing on his head in the middle of the room telling Sensei for the millionth time about winning the Battle Nexus Championship. Splinter's eyes are glazing over as he listens to Mike, watching as his jubilant son's feet get dangerously close to April's lamp.

Raphael would usually have Mike in a headlock by this point, reminding him of the virtues of modesty; instead he's quietly watching Donatello and April at April's desk. Their heads are together examining something behind April's laptop.

"Somethin' booooring…" Casey snorts, grinning at Raph. "Let's go out and smash some heads. Leave the geeks to their reproduction."

"Huuuuh….?!" Raph starts and gapes at Casey’s words.

Don holds up a tiny jar. "Just something the Utroms gave us to study," he explains.

Raph shakes his head. Leonardo gives a little chuckle, but doesn't look up from his book.

"Yeah… sounds good," Raph nods at Casey before glancing back at Donatello. Donny's casting subtle sidelong glances at April, his eyes are all wide and shiny as he absorbs all of her words. Raph gives an indignant little snort. Donny is way smarter than April; Donny knows practically everything and what he doesn't know he learns with ridiculous enthusiasm.

Raphael gazes at his brother with pride. April should be hanging onto his every word…

Then Don stands and walks towards Raph, replacing a book on April's shelf beside which Raphael is waiting for Casey to find his hockey mask. Their eyes meet, Donny’s mouth widens into a smile and he moves close to Raph so he can whisper in his ear.

"I think April hid it…" Don murmurs softly, as Raph's stomach does somersaults. 

"Uhh?" Raph realises Donny is talking about Casey's hockey mask. "Right. What for?"

Don gives a shrug. "She worries about him."

“She doesn’t need to. I’ve got his back.” Raphael stares back nonchalantly at Don, making sure his feelings don’t show.

“I know. You always have.” Donny beams. “You’ve saved my ass countless times!”

Raph grins back but his real feelings won't ever show. That would be such a mistake. Raph can't tell his brother what he wants to do to him. How would you say something like that anyway? How can you bring it up in conversation? 

You can't. He repeats to himself. Don would freak…

Would he? Raphael gazes at Donatello sorting through the books on the shelf; he's sucking his bottom lip in concentration. Raph is unusually fascinated by it.

No. He doesn't think Donny will freak, he'll be patient as always. Maybe even understanding. Raph knows the problem lies with himself. He just doesn't have the words to express how he feels. He can't articulate like Don… or Leo for that matter, and he can't let loose his emotions in a barrage of affection like Mikey.

But to really get to the heart of the problem, he's embarrassed to the point of mortification. And afraid. 

And that's something he'd never say out loud. 

Raph is afraid of Don rejecting him and making him look an idiot as a result. Raph thinks Don will reject him while he feels the way he does about April.

It's probably a phase. I'm a fucking teenager , Raph thinks. It's a phase. I'll get over it. In a few weeks I’ll be wondering what the hell I was thinking. He looks at his brothers and wonders vaguely if they've ever felt like that. If they've ever felt the way he does. 

If they do, they don't show it… 

Leonardo is grinning at Michelangelo who is peering over his shoulder to look at his book then he looks over in Raph's direction; his eyes are drawn to Casey as he passes by, and alight on the hockey mask. Leo rolls his eyes and goes back to reading his big book of Buddhism. Mikey appears at Raph's shoulder between him and Don. The lamp is now safe, deftly rescued by Sensei's quick reflexes. 

"Can I come too?" Mikey enthuses. "Can I! Can I! Can I!"

Raphael gives a grumpy sigh. Great. Having Mikey tagging along and playing on the annoying little bro shtick. That's all he needs. 
Yeah, hanging with Mikey can be fun when Raph is in the mood, but at this moment Raph wants to violently beat his frustrations out on some low life scum. If he goes too far Mikey might tell Splinter. 

Or worse, Leo. 

Raph glances back at Leonardo who is frowning over the top of his book at him as though he can read minds.

"Sure ya can, little buddy!" Casey beams before Raphael can answer.

Raph looks at Mike. "Mph."

Mikey laughs at him. "Cheer up, dude! We're gonna have fun." Mikey exaggeratedly throws his arms around Raph in a massive hug as Raph looks over Mike's head back at Donatello. 

Donny beams at Raph and Mike. "Don't get hurt." He waves a dull as fuck book at them. "I don't want to have to break off my research to tend to any wounds," he teases.

"Yes. Please don't get hurt." Splinter tears his attention away from the soap opera on TV and looks over at them. 

Raphael looks down at Mikey who is lingering still with the over the top hug and gazing up at Raph with adoration.

"S'up?" Raph looks down at him in utter confusion, preparing to shake him off roughly.

"Nothing!" Mikey grins awkwardly before finally and reluctantly releasing Raph, then gestures emphatically. "Let's go kick some butt!"