Y/n yawned as she whisked her egg mixture on the tiny bit of counter she had left from the boys. After a lengthy explanation as to what the hell was going on, the household decided that a few days of rest was probably for the best. Leonardo encouraged everyone to find some way to destress during this time. Y/n chose to finish her preliminary training with master splinter. While it did tire her out and make her muscles ache, she found it to be relaxing even when she was getting lectured about her failings, mainly the fact that she was struggling with the spiritual and mental side of ninjutsu.

The boys on the other hand, had found a board game that someone had thrown away on their first day of 'vacation'. One thing leads to another and now the group of four is parading around the sewers dressed up as their in-game characters participating in live action role play. Leonardo had invited her to join, but Y/n politely declined. There were plenty of reasons why. First being that she wasn't playing the board game, being too busy with training, and the second being she did not want to go sewer hunting for an afternoon. Okay, maybe there weren't plenty, but there were two.

Two was enough for there to be at home, pretty much alone, making cookies for when the boys got back. The unfortunate part of it all, was the fact that the boys had left their board game in the kitchen and spread out of just about every surface. All that remained was the stove and about two square feet of counter space. She was making the most of it regardless, blending her ingredients together carefully until it was time to scoop the cookies and put them into the oven.

Nearly in time with her closing the oven on her first batch, Y/n heard the tell-tale sign of the brothers return. Heavy footsteps and bickering. They may be twenty-one-year-old men, but they still acted like a group of fifteen-year-olds. It was a little ridiculous, but luckily for them it was also quite endearing.

"Finch!?" She suddenly heard Leonardo call out over the top of the argument.

"Kitchen!" Y/n called back.

A few moments later the blue clad turtle wandered into the room. He had ditched his knight's helmet already along with this sword and shield, but the cape remained flowing from his shoulders behind him. Without hesitation, he walked up behind Y/n and placed his hands on her hips as she reached over the stove to set the oven counter. When she felt his hands the girl looked over her shoulder with a smile.

"How was your L.A.R.P.ing?" she asked while landing back on flat feet, back ending up against the turtle's chest.

He gave her hips a gentile squeeze, almost as if he was testing the action, as he replied. "More eventful than we expected."

"Did you boys stray from the clues? We worked all night on those Francoeur."

"Technically yes, we didn't use our planned clues." The turtle admitted earning himself a disgruntled look. "It wasn't on purpose! We ran into another mutant who had the ability to create illusions. He took over our game and forced us to play along with him to rescue the princesses."

"Princesses?" Y/n questioned, pushing Leonardo away just enough to turn around.

Once she was facing him, the girl grabbed his wrists, forcing his hands to remain on her hip. She liked them there. As the days continued to pass with them living together the pair had slowly become more comfortable with touch and affectionate interactions. Most recently Leonardo's go to hand placement has changed, but it was evident that he was still unsure about if the change was welcomed or not. So every time the turtle chose to grab Y/n by her hips rather than her shoulders, the girl made a point to hold them into the position as a way to let him know that the action was more than welcome.

"Yes, princesses." The turtle smiled, giving her hips a more confident squeeze while leaning against Y/n's hands which she placed on his plastron, fingers tracing the scars that littered the hard surface. "The Mutant, Malachi, made an illusion of you and April trapped and waiting for us to rescue you."

The girl gasped dramatically while looking up to meet the turtle's eyes. "Oh no! Did the brave knight come to rescue me?"

He transferred his grip from your hips in favor of wrapping his arms fully around your back and pulling you closer to his chest. "Yes, your majesty, you're safe now."

Y/n gasped at the action, but was quick to pull it into her act, letting her arms wrap around his shoulders as a sudden boldness rushed through her. "Thank you, brave knight. Allow me to present you with a token of my appreciation."

Biting her bottom lip, Y/n looked between Leonardo's eyes and his lips before raising onto her toes. As she adjusted her grip to keep balance the turtle's arms tightened around her. For a split second he could see his eyes widen before they slowly relaxed into a hooded position. He leaned down enough to bump his snout against your nose, his personal way of giving you an out. Just in case you forgot who you were talking to or didn't realize how close you had become.

That being said, the turtle in blue was really hoping that you knew what you were doing. He had been thinking about this moment, as well as the last time you were in this situation. He wanted it to come to a head. He wanted to kiss you. Last time, he was interrupted by his little brother, but this time they were busy arguing. Leonardo smiled at the thought, the expression only further encouraged when Y/n nuzzled her nose against his snout and leaned in further.

"Yo! I smell cookies!" Michelangelo's voice suddenly ricocheted off the walls of the kitchen, causing the pair to instantly jump apart and turn in two separate directions. They weren't fast enough however, since the youngest turtle was fast to ask a follow up question. "Uh... what are you guys doing?"

Clearing her throat, Y/n responded fast, her back to the turtles as she began opening drawers. "Nothing Angel, the cookies will be done in a few minutes." Finally, her flustered mind managed to find the spoons, with three in hand she made her way to her bowl of dough, flashing a smile in Mikey's direction. "Want some cookie dough in the meantime?"

"Yes please!" The younger turtle beamed, no longer caring about what the mat of interrupted.

"What about you, Sir Knight." Y/n asked Leonardo, glancing at him from the corner of her eye, relieved to discover that when turtles blushed it was at least subtle. Which was more than she could say for herself, after all, she could feel the heat radiating off of her cheeks.

He cleared his throat before replying, his voice higher than usual. "Why not."

Y/n giggled a bit when she noticed the crack but tried to hide it. Carefully she spooned out three servings of cookie dough and finally calmed her heart enough to turn and face Leo, being careful to keep his spoon between them. "Your token good sir."

"Thank you, fair maiden, I will forever appreciate it." he replied with a smile. It wasn't the token he was hoping for, but with his little brother present it was the best he would get. Even so, he purposely grabbed the spoon in a way that would cause their fingers to drag against one another. Without breaking eye contact, the turtle placed the spoon into his mouth, and instantly his expression changed to one of pure bliss. "Ok in all seriousness this is delicious."

"I'm glad," Y/n beamed as she reached over the island to hand Mikey his serving. "So tomorrow back to the grind?"

"Yep, training is back up for us, and after ours I'll start working with you." the leader replied. "If Master Splinter gives the thumbs up we might be finding you a weapon tomorrow."

"That's awesome dudette!" Mikey jumped in between licks. "Word of advice, choose the chucks."

Y/n couldn't stop her laugh that time as she dragged her own spoon from her mouth. "I'll give myself a concussion."

"I'm thinking of some kind of knife," Leonardo mused. "After all, you mutilated that Kranng with a chef's knife. Get you a good quality weapon we can work on training your instinct."

"Sounds good to me." The singer shrugged, admittedly not having much preference when it came to weapons. She was simply excited to get one. Y/n did have one request though. "Can the wraps be like a china rose sorta color?"

"You're picking a color already?" The youngest turtle smirked, "Bold move."

"Is it? I figured color coding was just the thing." the girl shrugged in response as she finished off her cookie dough. "I mean, all four of you have a color, then April is all about yellow. As the sixth student my color options are fading fast, I need to swoop in a pick one."

Leonardo chuckled a bit as he finished his serving. Dragging the utensil from his mouth the turtle leaned down and pushed his lips against Y/n's hair line before tossing his spoon into the sink and leaving the kitchen with a final shout of his shoulder. "I'll see about china rose for you Finch."

"Woah... did he just kiss you," Mikey mumbled. "That's a serious flex."

The next day, Y/n all but bounced into the dojo when the brothers filed out after their morning training. Her ponytail was secured high on her head, her legging and sports bra matched, her hands were skillfully wrapped so that she stopped mutilating her knuckles. She was ready! First training with Leonardo as her sensei, and her potential first training with a weapon. When she skipped over the threshold, the bleu clad turtle couldn't help but chuckle from his position standing beside his father.

"Is she always this eager?" He asked.

Master Splinter hummed at the question before replying with a smirk. "No, I believe this reaction is simply to you."

Leo wanted to question, but he didn't have any time, since as soon as he looked forwards once again he saw Y/n settling on her knees before them like a proper student. She bowed her head momentarily before looking back up with a bubbly laugh. Her eyes were shining as she waited for one of them to speak. She looked so excited. It made Leonardo's heart flutter. He wished he could just pause time and cherish the moment forever. The turtle couldn't stop himself from staring down at her fondly.

Prior to her entering, he and his father had discussed her progress. She was excelling at the physical side ninjitsu but would need help with the spiritual side. Splinter had been helping her further her knowledge of jujitsu and chi-blocking but planned to leave all weapons training to his son. Last night, the father son duo had debated back and forth on weapon options before finally settling on two. They then went through their family's arsenal to find what they needed, and Leonardo sent a text to April for a very specific shade of pink fabric.

Luckily, his friend managed to deliver the fabric to him while Y/n was in the shower late last night, so he was able to sneak it into the dojo and prepare her weaponry. Carefully he wrapped each item in the fabric, color coding it specifically for the singer. He just hoped that she liked it.

"Leonardo, your student is waiting." His father suddenly spoke, breaking his thoughts.

"Oh! Um right, sorry Y/n." The turtle jumped at his father's words, but quickly recovered. Moving to a small table behind them he grabbed the weapons hidden in the remaining fabric from April. With careful hands he brought them back to Y/n, knelt to her level and placed them in her laps. "Master Splinter and I had a long discussion when it came to which weapons would best suit you. Please, take a look."

Somehow, the girl's smile grew wider as she delicately unfolded the fabric to reveal four kunai daggers, their thing handles delicately wrapped in strips of china rose fabric. Carefully she set the bundle on the floor in front of her before picking up one of the taggers and testing the feel in her hand. It felt almost custom to her hand. The natural comfort she felt when her fingers curled around the thin handle made her wonder how she had gone this long without it. Even without wielding the dagger, it felt like an extension of herself. Like it was destined to be hers.

Unfolding her hand, Y/n used her free hand to drag and finger against the wrapping and smiled. "China rose." she whispered to herself before looking up to Leonardo's eyes. "Thank you, Sensei Leonardo."

With a smile the turtle chuckled as he reached out to place his hand under Y/n's that was holding her Kunai. "That is going to take some getting used to."

The only response he got from Y/n was a sweet smile before she placed down her dagger and looked back expectantly. There was a new determination in her eyes that Leonardo understood. She was ready to move on, ready to start learning. There was still something missing. Prompting Y/n to stand, Leonardo went back to the table and grabbed a black leather belt with a black custom thigh holder hanging from it.

With a smile, the turtle approached Y/n and carefully secured the belt to her waist. Silently she watched him tighten it around her hips before he fell to his knees in front of her and tapped her knee. Obediently, she widened her stance allowing him to tighten the sheath to her thigh. The then raised a hand and asked for her daggers. She passed them to him and landed Leo to delicately secure them one by one.

Once done, he grabbed her hips, and used them as leverage to stand. When he rose to his feet however, he didn't release her, he simply squeezed her while his thumbs glided against the leather of her new belt. "Start wearing this during training. Not only will it keep your weapon close, but you will also have to get used to fighting with it. If or when you come out with us for a mission or patrol you will also be expected to wear it. Understood."

"Hai, Sensei." Y/n replied, though it lacked power, hardly breaking a whisper.

Leonardo was certain he would have replied in a similar tone if it wasn't for his father clearing his throat behind him, quickly getting them back on track. "Right! Let's begin."

***

Y/n were breathing heavily as she reached for a second Kunai from her sheath. Leonardo had already managed to disarm her once, that dagger now laying abandoned near the wall of the dojo. Currently, the first was running past her sensei, one blade still secured to her leg while she attempted to grip the other two properly for her next move. She was circling, looking for an opening.

It has been four weeks since they've started this cycle.. Four weeks of learning how to use her weapons and sparing. She was now comfortable with them, but still far from a master. Hell, some days it felt as if she had never held a dagger before. Luckily for her, today had been a good day. Unfortunately, that meant that Leonardo was using his swords during this match. Those damned swords had already cut her shoulder as he gripped her arm, forcing her to lose her first Kunai; she was not going to let him get another scratch. At least not without a bit of a fight.

Once she felt confident, Y/n stopped running in a secure stance and threw both daggers in quick succession towards Leonardo aiming for his wrists. Her hope that was a knick would shock him enough to drop at least one of his swords, an action that, per the rules of their sparing, would render the sword unusable. That, however, did not happen. Instead, she hissed out a curse and the turtle quickly blocked both of her daggers.

"A ninja never throws her weapon." he scolded before rushing towards her.

Moving fast, Y/n jumped to dodge and went for their final knife. "You're the one who said they doubled as throwing knives."

Leo began his assault, narrowing missing Y/n as she continued to move backwards. "Only when your accuracy is better."

The girl grumbled as she glared at him, dodging once again, this time by ducking under his arm. With her free hand she landed a few quick jabs up the back of his arm. Leo winced as his muscles suddenly cramped up causing him to drop one of his swords. He was fast to adjust, however. So, with one arm now uselessly dangling at his side, he raised his other, pointing the tip of his sword in Y/n's direction.

She was overconfident now; she had only managed to partially disarm Leo once before. Riding this high she rushed in without calculation, attempting to get him in a position that she could pin him with her weapon at his throat. Leonardo was smarter, and far more calculated, so as she lunged for her attack, he swung his numb arm in her direction throwing her off balance. Kicking out her legs, Y/n landed hard on her knees and not a moment later Leo had his arm aggressively throw aroused her shoulder forcing her back to arch up against his chest all while he fell to straddle her ankles.

"Don't get overconfident." He scolded. "Using your chi-blocking would have been much more successful than that mad dash. You already incapacitated my left arm, and I purposely left an opening for you to do the same for my right. You could have won this one Finch, but instead you got cocky and tried to go for a more aggressive attack."

"Hai, Sensei," Y/n replied simply as she thought over his words. "I'll do my best to improve."

"I know you will." Carefully the turtle dropped Y/n from his grip and as he pulled her to her feet, Leonardo gave his praise. "I'm really proud of your progress, Finch. You've impressed me."

"Thank you," She beams in response before wandering to the side of the room to collect the Kunai that now dotted the floor. "Do you think I'm doing well enough to... I don't know... leave the lair?"

Leo visibly hesitated at the question. He didn't want her to leave the lair. She was safe here. But then again, if he never let her leave then Y/n was less of a roommate and more of a prisoner in his home. The last thing he wanted was for her to feel trapped. Still. It was dangerous out there. The shredder may not be actively hunting for her, but if he or his minions happened upon her, it was likely that she could be taken as some kind of constellation prize.

His eyes followed Y/n as she carefully sheathed her knives on her thigh before approaching him, one hand brushing strands of hair that had escaped her ponytail out of her face. She was skilled. Even if she had yet to win a match, Y/n was getting better than holding her own with her weapons. Before they started training her she was able to add to the two battles she had gotten tangled up in. She even managed to pin a man and break his arm. Y/n was nothing to sneeze at. There was also her ability to utilize chi-blocking. After working with Master splinter, she had all but mastered transferring the practice to mutants.

Rubbing at his numb shoulder at the thought Leonardo forced himself to respond. "Fine. But only on a low-risk mission or patrol, and only if you're with the rest of us. It's still not safe for you to be going out on your own."

"Really!" The girl's face lit up and she had to force back the desire to tackle him with a hug. After all, part of their dojo ground rules was that as soon as they passed the threshold Leonardo was her sensei, and she was the student. Hugging would be weird. Instead, she let herself jump up and down like an excited child arriving at a candy store. "Thank you Francoeur! Thank you, Thank you!"

"Yeah yeah," He grumbled while forcing his smile to stay subtle. Releasing his shoulder Leo waved Y/n off. "Now get out of here, I know you said you and Don were close to come kind of break through."

Y/n's eyes lit up at the mention of her experiments. Bouncing on her toes she rushed towards the exit. "Thank you!"

With a wide smile the girl made her way to Donnie's lab. She was more than ready to get back to work. According to their calculations the base for their retro-mutagen should be done today. As she trained Donnie was getting a head start with the other ingredients as well as stabilizing their base. It would be time to add the final ingredients soon, and she really didn't want to miss it.

When she arrived at the lab she tugged the door open with more force than usual. Inside, Donnie was fussing between various desks while April sat at a nearby table with her head resting on her folded arms. The poor girl looked only a few seconds from falling asleep, and only managed to roll her head to the side to send a tired smile in Y/n's direction. Kindly, she greeted the red head who hummed in response. Their greeting caught the turtle's attention, and he stood a bit straighter with a smile.

"Ah there you are, partner!" Donatello cheered as she walked into the lab. "Straight out of training?"

"Yep." the singer chirped back, stretching out her muscles as she walked further into the space.

"Finally get one on Leo?" the red head muttered tiredly.

"Nope, he kicked my ass." Y/n sighed as she leaded against the table being careful not to sit on any of April's papers. "How about you, April, manage to sort through Tello's ramblings?"

"Hardly." She yawned. "Seriously Donnie, are we done yet. It's been hours."

"No worries April," The turtle replied with a slight stutter. "This time, it's gonna work. We'll finally turn your dad human again."

The red head smiled a bit at her statement as Y/n wandered over to Donnie's side of the table, prepared to hand him the required ingredients for this experiment. They had been working on their retro-mutagen base for a month now, Donnie even longer on his own, and now it was finally stable. As they worked together, the turtle had slowly, but surely filled in the singer on what exactly they were working on. The first reason was obvious. Master Splinter used to be human, and Donatello wanted to be able to turn him back if he could.

The second was a bit more complicated. Through many long, hesitant explanations, Y/n was finally able to piece together that the boys were one, responsible for the explosion that caused her to lose her job at TCRI and two the reason why there were so many mutants wandering around New York. They had lost dozens of mutagen canisters after fighting with the Kranng about a year ago. One of the canisters broke on April's father and mutated him. Since then, Donnie has been more motivated than ever to make a remedy.

"Now, I've just got to add a bit of April's DNA." Donnie explained, prompting Y/n to hand over the dropper with her blood in it. "Brace yourselves girls."

As he stirred a new sound echoed through the lab. Soft snores. Looking up, the scientist pair saw that April had fallen asleep. Exchanging soft smiles, they silently agreed to work quietly as the retro-mutagen processed. Once ready, Y/n took a small amount of Donatello's blood and viewed the cells under the microscope. They were obviously mutated, and the sample would work well as a tester. Pulling the slide off, she nodded at the turtle who prepped a second slide with a few drops of his blood and a drop of the retro-mutagen.

With a shaking breath he covered the lids and put it under the microscope while changing. "Please turn normal, please turn normal."

He then grumbled in disappointment as he stepped away, just enough for y/n to cut in for a look, when she did however, she caught the cells just in time to watch the mutant cells snap into healthy normal cells. "Wait! Tello! Look!"

Moving quickly, she let the turtle look again, and soon enough he gasped as well. "Eureka! We did it! We really did it!"

Out of excitement Donatello scooped Y/n up in his arms and started twirling her around as she squealed. Their excitement woke April who was soon to her feet as well, face filled with hope as she shouted over them. "You did it?! You two really did it!"

"Did what?" Leonardo asked as he, along with the rest of the family, made their way into the lab to investigate the screaming they had heard.

"Invent Pizza that doesn't get soggy in milk?" Mikey suggested, though his comment went unnoticed through the rising buzz in the room.

"We finally did it, Francoeur!" Y/n shouted as she rushed away from Donatello in favor of jumping into a hug with the eldest turtle. "Retro-mutagen!"

"The key to turning Mr. O'Neil human again!" Donatello beamed, then turned to his father. "And you too, sensei."

"Human once more?" Master splinter muttered in surprise before suddenly turning his back to the others in preparation to leave. "Save April's father first, and then I will consider it."

The man left without another word, leaving them all to exchange uneasy glances. They had expected him to gratefully accept the retro-mutagen, not turn it down, but it also made sense. Master Splinter was an honorable man, he will always put the needs of others above his own. This was no different.

Distracted by their retreating father, the pair almost didn't notice when Michelangelo zoomed past them all, grabbing the beaker of retro-mutagen as he went. In a panic Y/n wiggled herself out of Leonardo's arms and prepared to run after him, but Donnie and Raph were already on it, quickly crowding their littler brother as he spoke.

"Ooo! What if I turn myself human again!?" Mikey announced excitedly as he lifted the realtor-mutagen to study it. "I wonder what I'd look like"

"We were never human to begin with, genius." Raphael grumbled at his little brother. "We'd just turn back into turtles."

Y/n giggled at the interaction. "I bet you all were adorable little turtles though."

"Really? You want us to lose the human DNA." Raph presses, eyes flicking to Leo as he speaks.

"No, never said I wanted you to do it, just said I bet you all were cute." Y/n replied before turning to face the red clad turtle head on. Resting her weight on one hip, she smirked. "Though I thought it was obvious that you were the exception in that statement, Raphael."

"Give me that." Donatello suddenly cut in, stealing the beaker away from his little brother to place it safely on the counter once again. "I only have enough for two doses, one for April's dad and one for master splinter."

"Can you make more of the stuff?" Leo asked, while squeezing Y/n's shoulder causing her to look up at him.

"In theory yes, but it took ten canisters of mutagen to make a single dose of retro-mutagen." The girl explained.

"And we don't have any left." Donnie sighed, then turned his attention to April. "But at least we can find your dad and change him back."

The red-heads mouth opened and shut a few times before she squealed. "I'm speechless! Thank you! Thank you so much Donnie! You're the best!"

Wrapping her arms around his neck, April pulled Donatello down to her level to kiss a quick kiss onto his cheek. The girl then swiftly released him and rushed from the room, shouting something about needing to gather her things so they could go out soon, though it sounded a bit more like a jumbled mess. Not that Donnie would have replied to her anyway. No, the purple clad turtle was too busy face planting against his desk in a lovesick haze.

Y/n could stop laughter from bubbling up when she saw this, but soon she snapped back into work mode. Shaking her head, she turned on her heel and placed her hand securely against Leonardo's plastron. She gave a few steady shoves while asking them to leave so they could finish up here. Raph and Mikey obeyed her request intently, rushing past or getting out of the room, but the leader chose to resist. Though the smile on his face proved that it was mostly in jest.

He turned his back to her and forced Y/n to shove him closer and closer to the door while he chuckled at her. Before she could push him over the threshold however, Leonardo turned back around and lightly brushed a strand of loose hair out of her face with a smile.

"Great job, Finch. You two are a great team." he praised.

"Thank you," The girl hummed, leaning into his hand for a moment before going back to shoving him. "Now get, so we can get the chemical contained."

The turtle let out a hard laugh but obeyed. "Yes, ma'am. Then get showered and changed. I want you to come with us to find Mr. O'Neil."

"Really?!"

"You earned it." Leo laughed. "You've done great with training, and you two figured out the retro-mutagen. You should get to see it work."

"Thank you Francoeur! I'll be fast I promise." With that, she slammed the door in his face and released an excited girly squeal. "Wake up Tello! We gotta get this into vials for administration."

That managed to wake up the turtle, and in an instant he was rushing around. After a few moments he passed Y/n one of two glass vials and instructed her to put half of the mixture into it. Nodding she began to fill it as Donnie started to clean up the desk, and safely dispose of anything that might be contaminated.

After a few moments of comfortable silence, Y/n chose to break it by pressing a question that had been pestering her own mind for a while now. "So, you and April?"

"Ha I wish," The turtle laughed humorously. "It's too complicated, I'm a mutant and she's a human. Not to mention we've been friends for six years now. If something was going to happen it would have happened by now right."

"Firstly, you can't think too much about the human mutant thing. You guys are fifty percent human, and if that bugged her she would have run for the hills by now." Y/n explained simply, setting aside her first full vial before moving onto the next. "Secondly, being friends for a long time just means that you're already close. Maybe you just need to make a move. An obvious one."

Donatello rolled his eyes. He felt like he had been being obvious, but still, he'd hear her out. "What do you suggest?"

"Why not use a cool pick-up line or something," Y/n suggested with a shrug as she capped off the second vial of retro-mutagen.

"You can't be serious."

"I am, girls like funny guys, so even if you cringe, being able to laugh at yourself is a good thing."

Donatello looked unconvinced when he approached to grab the vial, but still he gave in. "Fine I'll bite, what should I say."

"Well, you can always go science since that's kinda your thing." Y/n suggested.

"There are science pick up lines?"

"Yep. like..." The singer dramatically cleared her throat as she sat up a bit straighter. "Are you Carbon because I'd love to date you."

She giggled at herself and soon Donnie started laughing right along with her. "That is so bad."

"It's great!" Y/n beamed then nudged her lab partner with her shoulder. "Seriously though. As cliche as it is, my best advice to you is to just be yourself. If April can't like you for you then maybe she's not worth it."

***

Y/n officially decided that running across rooftops is still just as stressful as it was the first two times she did this. At least this time she was in leggings and a hoodie rather than a show dress and heels. Downside, rather than being held bridal style, she was desperately clinging to Leo's back trying to ignore the handles of her daggers that were painfully digging into her leg thanks to the position the turtle was holding her in. Glancing to her right she saw April clinging to Donnie in a similar fashion, but she seems much more comfortable. Six years of this kind of travel must make you get used to it.

Soon enough, they came to a stop on an empty rooftop. As Y/n slid from her perch on Leo's shell she looked towards an adjacent rooftop and had to hold in a gasp. On a billboard attempting to drink the blood of the picture it displayed was a giant bat mutant, who looked far more terrifying and, well, mutant-like, than the others she had met. His head was bulbous with a pulsing green vein, his body looked almost human, but deformed in a way, then there were the wings. Huge bat wings with four fingered hands at the tips that appeared to be fully functional.

Her heart ached for April. Not only was her father most likely scared and in pain in this form but seeing him this way couldn't be easy on her. Silently, Y/n glanced towards her friend to see her holding her hands close to her chest as she approached the edge of the roof.

"Dad." whispered, voice full of longing. It was evident that she wanted to rush to him.

"Alright girls, hang back." Leo instructed while physically moving himself to stand between the human s and the edge of the roof. "We don't want to rail him up like last time."

"But I can help." April argued. "I can calm him down."

"Um... what happened last time?" Y/n asked. April was fast to respond, but Raphael cut her off.

"Last time, he took her to his nest and tried to feed her dead rats." Raphael explained simply, his head lolling to the side to give April that clearly showed that he thought she was nuts.

"Good point." The red head resigned, earning her a series of nods before the turtle turned their attention towards the adjacent roof where they could reach April's father.

Without another word, the boys all took their place on the edge of the roof and shot grappling hooks across the alleyway. Skillfully they swung from one roof to the next, all landing as silent as possible around Mr. O'Neil's sleeping form. From where they stood, the girls couldn't hear what they were saying, but they still chose to watch, not wanting to miss a second of the boys working.

The pair was so focused that when they felt a sudden burst of wind rush past their backs, they both jumped out of their skin and turned. Y/n pulled a dagger and April had her hand on her folded tessen in anticipation. Neither of them saw anything, so they exchanged a weary look before looking back towards the boys. Still, they felt watched.

A few moments passed then suddenly they heard Donatello yelp. The sound woke Mr. O'Neil, and instantly the bat mutant took to the skies. He flew away faster than any of them could react, swooping down near the girls as he went.

"Dad, No!"

"Mr. O' Neil!"

The girls shouted as he flew away into the night. This plan was quickly going awry. Y/n wanted to go to comfort April, but before she could, they heard Donnie shouting from the other rooftop.

"No! The retro-mutagen!"

Turning, they saw the turtles face to face with a giant fly man. "What the hell is that?" Y/n asked.

"A new mutant?" April suggested, clearly just as confused.

The mutant then turned and flew towards them. The girls both panicked as he reached for them. Acting fact, April shoved Y/n out of the way, resulting in her getting packed up instead. Trying to react properly and with enough speed to be effective Y/n fumbled with the dagger in her hand, changing her grip to throw it at the mutant.

Miraculously, she hit her target, blade grazing his arm, but the shock it caused was enough for the mutant to drop April. Y/n was a moment away from shouting out in panic as she rushed towards the edge of the roof. Before she could get fair, an arm wrapped around her waist keeping her in place and the mutant caught April once again. Y/n spared a glance over her shoulder to see Leonardo holding her as he glared at the mutants, the other brothers gathering around them with similar expressions.

"I know who that is!" Raphael announced. "It's Derek Stockboy!"

"Baxter Stockman!" the fly hissed back. "Come to my lab, and you will bring more retro-mutagen, or the girl mutants with me!"

The mutant then disappeared just as Mr. O'Neil had, taking April with him. Y/n called out to her, and tried to follow, but Leo's grip on her tightened. There was nothing they could do right now. They needed to regroup at the lair.

"Wow, we really messed that one up." Mikey sighed as he looked in the direction that the mutant retreated.

"I only have one vial left." Donatello stressed. "It'll take months to synthesize more."

"Don't worry Donnie," Leonardo tried to soothe, but it was evident that his little brother was struggling to believe him. "We'll get her back and make her dad human again.'

"Let's hope so." the youngest sighed. "Let's really hope so..."

Raphael quickly shoved his little brother down, providing enough distraction for Y/n to wiggle out of Leonardo's grip and run to the edge of the roof. She looked towards where April was taken. Here was no way they could catch up with them now. With a resigned sigh she then looked down, trying to scan the alley floor of her weapon which should have landed somewhere below.

"We need to get back to the lair." Leonardo suddenly said from behind her, making the girl jump.

"But my kunai I..." She started to explain, but the turtle gave her shoulder a squeeze to cut her off.

"Don't worry Finch," Leo interrupted, then looked at Mikey who nodded.

"I'll get it for you dudette."

"Thanks." She muttered as she turned away from the edge.

When she spun she saw that Leo had already turned his back to her and lowered to a crouch, allowing her climb onto his back. One her arms were secure, he stood up straight again, arms linking under her thoughts. The leader looked towards the others, and with a silent nod, they were off, rushing back home to the lair.

When they arrived back at the lair Leo set Y/n down before turning to talk to sensei about their mission while Donnie went to the lab to grab the second vial of retro-mutagen. Y/n went to follow, but stopped when Mikey jumped in front of her, her lost kunai in his hand. Sweetly she smiled and thanked him, before taking the knife and sitting on the couch. Mikey and Raph were quick to join her.

The three waiting in silence, not quite sure what to do with themselves. Raph leaded back dramatically grumbling about their failure while Mikey began fussing around as if trying to find a comfortable way to lay. Y/n watched the youngest brother as she fiddled with the dagger in her hand, letting the sharp tip press into the pad of her finger as she mindlessly counted out the ridges the wraps caused.

"Nice hit by the way." Raph said suddenly, breaking through the silence of the room.

Y/n looked up in surprise, but quickly shook the feeling away and looked back down at her legs, tugging at the seam of her leggings. "Would have been nicer if it didn't nearly cause April to fall to her death."

"But she didn't." The turtle reminded her. It was clear from his tone that he was attempting to cheer her up, but it didn't do much.

Even so, Y/n managed to look back at him with a strained smile. "No, she only got taken by a fly man."

Before Raphael could continue, Leonardo wandered back into the room with a serious expression. It was evident that he was in full leader mode now. Eager to get moving on saving their friend, the singer reacted fast.

"Your back!" Y/n said excitedly, raising to her feet in front of the turtle. "What's the plan to get April?"

"I already called Casey. He, Donnie and I will go in to save April." Leonardo started to explain before looking over your shoulder towards his two little brothers who were still lodging on the couch. "While Raph and Mikey will capture Mr. O'Neil."

Y/n hummed as she listened before looking up at him with a smile. "And what about me?"

"You'll stay here with sensei." he replied simply, and Y/n's smile vanished.

"What! Why?"

"Because you're still new at this and this is a big deal mission." he tried to explain but the girl was having none of it.

"And changing a mutant bat into a human wasn't a big deal mission." She asked, while shifting her weight into her standard, you are walking yourself down a dangerous street, pose. Arms crossed in front of her chest and weight resting on her right hip. "Oh, just wait till I tell April that."

Seeing her change in stance and attitude, Leo's eyes widened, and we quickly attempted to back track while still holding his ground. "Well, it was a big deal, but this is a recuse and as I said you're new at this and not as well trained in fighting and just got your weapons this morning, so I just don't know if it's a good idea for you to come."

"Are you saying I'm weak?"

"Well, no it's just that you're weaker than...us..." He trailed off and knew instantly he said the wrong thing. Y/n looked less than impressed. A single brow raised, waiting for him to finish his sentence, but he knew that no matter what he said, the woman would just get angrier. Desperate, le looked over his shoulder toward his little brothers who were now watching the exchange with interest. "Damn it, Raphael, help me out here."

The red clad turtle smirked at his older brother with a shrug. "You dug your own grave Leo."

"So, I am weak?" Y/n glared her finger now pressing aggressively against Leo's chest. "Still some damsel in distress that needs a big strong knight to save me?"

"Yes! I mean, no, I mean." Leo stumbled over his words as he grabbed her offending hand and forced it back to the side. "It's ok to need to be saved."

"It is, but it's April that needs saving right now, not me. So, tell me, how is me staying here going to help save April." The girl asked, only to be greeted with silence. "Exactly. I'm coming."

"No, you aren't."

"Yes I am."

"No, you aren't."

"Why not!" Y/n finally shouted, breaking their seemingly endless cycle

"Cause I'm the leader and your sensei." Leo bit back, but it only made the girl scoff.

"Well, I'm your roommate and the one who feeds you. So, you can either have no bed and no meals or you can let me come with you."

That caught everyone's attention, but it was Mikey who was first to object. "Woah dude! We're all being punished if you don't let her go."

"Fine! But stay in the shadows and out of trouble. You'll help Donnie get to April directly, under no circumstances are you to join the fight."

That was all it took. Y/n mood did a full one-eighty. She squealed excitedly and jumped on her toes until she finally lunged forward, wrapping her arms around Leonardo in a tight hug.

"Thank you thank you thank you!" She chanted before landing back on her feet, pulling the turtle down with her to kiss his cheek. When Y/n pulled away she practically ran for the living room while shouting, "I need to re-do my hair."

Silently the brothers watched as she ran off, and eventually Raphael chuckled. "She has you whipped, man."

"Well do you want to go back to Mikey's cooking?" Leonardo argued.

The red turtle shrugged as he stood from his spot to gather the supplies he would need to capture Mr. O'Neil. "Not saying it was the wrong choice, just that I stand by the statement."

***

When Y/n returned to the living room, ponytail now replaced with a tight French braid, she was pleasantly surprised to see a familiar man standing in the living room talking to the turtles. He was completely teched out in hockey gear and skull face paint, but still she recognized him. Not that it would have been hard to guess even if she didn't. After all, the turtles didn't exactly talk to many humans.

"Hey Casey! Long time no see." Y/n beamed as she approached the boy, happily accepting the side hug that was offered to her.

"Hey Pidge, I heard you're coming with us this time."

"Hell yeah!" She cheered before looking out over the room to see everyone else's status. Leonardo seemed ready, as did Raphael, and Mikey was..."What is he wearing?"

"Best not to ask." Leonardo huffed.

Y/n wanted to question more, but instead, Donatello entered/ "On that note, we had better go. I've got our final dose of retro-mutagen, and time is of the essence."

"Alright, let's head out." The leader nodded then turned his attention to the sole girl, expression serious. "Finch, you remember our deal?"

"Yeah yeah, sick to the shadows and out of trouble." Y/n recited back to him as he approached.

"Good." Leonardo nodded, then crouched down with his back to her. Obediently, she climbed on, and the pair quickly worked to get her secure. "Let's move."

Casey smirked at what he saw and glanced over to Donnie with her arms out expectantly. The turtle in purple rolled his eyes at the man and shoved past, causing Casey to call out with a chuckle. "What no piggyback ride for me?"

The man's comment went ignored, and the rest of the journey went on in silence. Creeping through the darkness, the group opened one of the sky lights of Baxter's lab and dropped four ropes down. They slid down with ease, landing in a back corner, far enough out of the way to not be seen, but close enough that they could watch as the fly mutant tired their friend up over a vat of mutagen.

Y/n was proud of April. She didn't look panicked, instead, the red head was attempting to reason with the mutant as he ranted about his plan. Front he sounds of it; he was going to mutate him and April to create some mega mutant. This is of course, only if Donnie didn't hand over the retro-mutagen.

Shaking her head, Y/n tried to find the fastest way to get to the upper level. Just to the right of the mutagen vat, there was a metal staircase. That was probably her best route, as long as it remained clear. She could sneak behind some of the random machinery for most of the journey and only have to make a mad dash in the end. From the corner of her eye, she glanced at Leonardo before gesturing her route with her head. The turtle in blue traced the same route she figured before turning back to her with a nod.

Mission approved, Y/n rose to her toes in preparation to run only to suddenly jump and look over her shoulder when a loud noise resonated from behind her. The sound of a clap. When she turned she saw Casey looking a bit sheepish as his hands were slapped together above his head. Just as the noise caused his teammate's attention the fly mutant turned in their direction.

"Turtles! You thought you could sneak in, but you failed." the fly hissed. "No retro-mutagen, no trade."

"I got your retro-mutajunk, right here." Casey shouted back before jumping to his feet and using a hockey stick as an air guitar.

It appeared that the mutant was just as unimpressed by Casey's actions as his team, since he simply tuned and spit acid onto the rope that was securing April in place. Their time was now ticking. Stockman dove in their direction, prompting Casey to rush forward with an attack as the rest of the team ran to enact their part of the rescue plan.

Leo prepared for a secondary attack while Donnie and Y/n moved forward. The scientific pair parted ways only a few feet from the vat. The turtle stopped to launch his grabbing hook and start his assent up the side of the canister while Y/n turned to get to the steel stairs. She gripped the rails as she hurried up the steps, praying that she didn't trip and embarrass herself. From below she could hear Donnie scream. Y/n spared a quick glance, only to see that he had been tossed from his rope. Her eyes then moved ahead to April. The rope was continuing to thin.

As soon as she made it to the upper level, the singer started searching for a good angle to make a leap. The vat of mutagen was a few feet below her, if she could gauge her jump correctly, she should be able to make it from this upper level to the rim of the canister, and hopefully help with catching April before she fell.

"Guys! A little help here!" April called out as Y/n started climbing over the railing.

"I'm coming, April!" she shouted to her, while stealing her nerves.

Just as the girl pushed off of the railing Donatello made it to the rim. Nearly in sync with his landing, April's rope snapped, and the girl began to fall. Y/n's eyes widened, and she shifted her weight, hoping to angle herself in a way to catch her friend. It appeared that Donnie had a similar plan, for he had jumped from the rim and was going for the red head. Much to their dismay, neither of them made the catch. Donnie's hand grasped April's and Y/n's timing was off. April landed in the mutagen with a sickening splash.

When the singer landed she nearly slipped into the vat as well, if it wasn't for Donnie landing at her side, and wrapping a protective arm around her middle. The pair panicked as they looked into the ooze trying to catch sight of April. As they squinted Stockman began a rushing descent towards the chemical. Before he could dive in after the girl, a hockey stick came flying from above, knocking him off course.

"Eat it, bug!" Casey shouted.

The man came flying after his makeshift projectile, taking the mutant out of the sky, while Leonardo climbed up the vat to stand beside Y/n and Donnie. He took a quick moment to check that Y/n was alright before he turned his attention to the goo.

"Is she..." Y/n started, crouching down to look closer into the vat, hoping to see their friend.

Instead of catching a glimpse of April, a sudden bubble of mutagen burst into a wave. The chemical came rushing towards the edge of the canister, causing Leonardo to give Y/n and swiftly move her out of the space zone. Silently they waited as another bubble appeared, this one far closer to the edge. When this one popped however, it didn't result in a wave. Instead, April appeared clinging to the edge of the vat while coughing up a small amount of mutagen.

Relief rushed over them as she pulled herself to her feet. "Nice catch Donnie!" she said sarcastically while shaking her hands.

"April!" Y/n beamed. Wiggling away from Leonardo she took a step towards her with her arms out before remembering that the red head was covered in radioactive goo, and instantly stepped back. "I would hug you but uh..."

"Yeah, hugs after showers." April smiled with an understanding hum.

"You're immune to mutagen." Donatello cut in as he realized the magnitude to the citation before them. "That's why your DNA worked to create the retro-mutagen. Amazing!"

"I'll devour you all!" The fly mutant hissed down at them, cutting through any further conversation. "I'll drink you like blobs of delicious filth."

"Well on that disgusting note." Y/n makes a grossed-out face as she grabs a dagger and throws it at him, successfully hitting his thigh. The fly groaned in pain, but pulled the dagger out and threw it to the floor.

"Foolish girl!"

The fly instantly dove in their directions, arms reaching for Y/n. Instantly, Leonardo grabbed her, jumping off the edge of the canister. Together they handed hard on the ground just in time to see stockman change direction and knock Donnie to the ground. Wasting no time, April jumped from the vat and grabbed Stockman by a wing.

Casey ran up from the back to grab a second wing, together they worked to hold the fly back as his claw gripped Donnie's wrist in an attempt to get the retro-mutagen. Leonardo ducked under the fly's arm and pressed his back to his chest trying to pry him off of his brother as Y/n went for stomach's wrist. Using her nails she tried to tear the fly's claw open so Donnie could be free, but it wasn't working. Nothing was. In fact, all the team managed to do is hold stockman still, something they managed to keep true even as their leader's phone rang at his hip.

Lifting it to his ear, Leo let out a strained hello, and through the reviewer they could all hear Raphael shouting something. "No problem! We're on our way," Leonardo replied into his phone as they continued to struggle against Stockman.

"Get your claws off of me!" Donnie screamed.

Just as Stockman was about to get a grip on the vial, a wall to the left of them suddenly exploded. The group froze, their attention taken as multiple figures emerged from the dust. One of which was eerily familiar, especially to Y/n. It was the wolf mutant front the day she was taken to the lair.

The wolf roared and glowered at them all. "I heard you say Retro-mutagen. I can become human again?"

The turtle team exchanged uneasy glances as Leonardo said a final message into his phone. "On second thought, we might be a little late."

"Bring me that vial." the wolf hisses as everyone separates.

With a glare, Leo grabbed one of his smoke bombs, throwing it to the ground to make a diversion. "Time to go!"

As the smoke went up around him, two of the Footbots ran for the leader, only to end up destroyed by the time the smoke cleared. That was when the wolf went for his attack. Meanwhile, Stockman had managed to pin Donatello to the ground. The two wrestled for the vial to retro-mutagen until April cut in turning the tide in the turtle's favor.

' On the other side of the room, Casey and Y/n were separated, both fighting separate soldiers. Accustomed to fighting their type, Casey was quick to knock out his opponent. Y/n on the other hand went back and forth, blocking the robot's blade in the same way she would while sparing Leo. Eventually, she found an opening and threw one of her daggers into its chest.

The impact short circuited the bot for a moment, giving her the opportunity to jump it. Using a second knife she stabbed at its core, being used to cut as many wires as she could in the process. Finally, the fight stopped in a burst of sparks.

"Ha! I did it!" Y/n cheered as the bot crumbled to the ground. A glance over her shoulder, let her know that the battle was far from over. So, thinking fast, she put one foot of the robot's neck and used the other to detach its head. She then turned towards Casey and prepared to punt the head towards him "Casey! Heads up."

The head landed near Casey's feet making him smile. "Thanks Pidge!"

Turns out, their timing couldn't have been better, for a soon as Casey lined up his shot, April shouted. Stockman was just moments away from using the retro-mutagen on himself. The only thing that stopped him was the Footbot head colliding with him, causing the mutant to drop the chemical. The vial rolled on the ground towards Leonardo, who swiftly picked it up as he turned toward the rest of his team.

"We found April's dad! Let's get out of here!" Leonardo instructed, leading the group to the door.

From behind them they heard the sickening buzz of the fly mutant as he chanted, "No escape!"

Rushing out of the lab they hurried to wear Raph and Mikey were supposed to have parked the turtle's van that they named the Shell Raiser. Luckily, the warm coated turtles followed that part of the plan to a T and the vehicle was waiting for them in the alley way, unlocked with the keys in the driver's seat. Rushing forward, everyone filed in. Donnie and Leo were quick to take their seats as the humans stood in the middle, holding onto the walls of the van desperately. Before Y/n could even pull the door shut, Leonardo had started the car, and slammed on the gas, launching them forward and onto the main road.

"It's gaining on us." Casey warned as he caught sight of the fly out of the van's review.

"Firing garbage cannon." Donnie warned before firing the first line of defense.

"Take a right!" April suddenly screamed over any other conversation.

That was the only warning they received before Leonardo aggressively turned the wheel. The force of the corner made it feel as if the van itself was about to flip, as Casey and Y/n were thrown against the far wall. The man attempted to steady his friend but before he could, April shouted out another instruction.

"Now a left, Dad's this way!"

Casey caught himself on the back of Leo's chair this time, scrambling to his feet as he asked, "How do you know?"

"I just do," April replied. "I told you I get certain feelings about things. Faster Leo! Another right!"

Once again, they were thrown, and Y/n's head banged against the side of the van. Wincing, she rubbed the new sore spot and turned towards the driver. "Jesus Francoeur, who taught you to drive?"

"Trial and error mainly," Donnie replied, causing Y/n to shriek.

"What!"

"Take a left here." April shouted over her and suddenly they were all tossed against another wall. This was quickly getting old.

Luckily for everyone, there was only one more turn before the red head was shouting for Leo to stop. This of course, just threw them all forward with enough force that even Donnie went flying from his chair. Sheepishly Leonardo apologized when he looked over his shoulder to see the pile on the floor. Y/n stuck at the bottom of the pile on her stomach while Casey laid on his side, protecting her head from Donatello who was sprawled diagonally on top of the pair.

He only earned himself three glares as they scrambled to get off of the ground and open the door before April broke the handle in her attempts to exit. As soon as the door slid open enough for her to slip through the red head was gone, leaving the rest of her team to stumble out of the van after her. From where they stood they could see her already halfway up the fire escape and moved quickly to follow her. By the time they pulled themselves up onto the roof April was already crouched in front of her father, calming him down.

"Stay calm, calm." April chanted, and soon, the bat mutant nuzzled into her chest recognizing the girl as his daughter.

"Sorry, this took so long Mr. O'Neil." Donatello spoke after allowing the pair to have a short moment. "Just a quick spray on your skin and you'll be good as new."

As soon as the turtle pulled the retro-mutagen from his bag a mass zoom passed, taking the vial with him. It didn't take a genius to realize that it was the fly mutant who stole the vial once again, but if anyone had any doubt, he eradicated it with his maniacal laughter.

"Seriously! Again?" Donnie complained, but things only managed to get worse.

"Flying Footbots, dude this is getting out of control." Mikey panicked as they looked towards the sky.

Soaring around them with wings similar to those of fly squirrels were about half a dozen foot bots. They scanned the group before flying off in the same direction the stockman flew. Their mission was clear. Get the retro-mutagen. That didn't make the new upgrade to the box any less irritating. Y/n was tempted to use a kunai to shoot one of them out of the sky but held back.

"They are like fucking cockroaches; you think you stomp them all out and then they sprout wings." the singer groaned out of frustration.

Raphael winced at her words. "An unfortunately accurate comparison."

"Let's move turtles!" Leonardo shouted over them, prompting the brothers to swiftly move out.

The turtle in blue was the first off the roof, jumping towards one of the flying bots. Using his katana, Leo managed to effectively turn the bot into a hovercraft of sorts. Skillfully he flew it in the direction of the masses as his brothers one by one followed. Mikey was close behind, using his bug costume to take to the air with Raphael and his wings close behind.

Only Donatello lingered to give final instructions to the humans before he too rushed off the side of the building. "April you and the others stay put and keep an eye on your dad!"

The humans stood alone in silence for a few moments, exchanging glances as if deciding what to do next. That was when April had a change in posture as she eyed her dad with a smile. That smile made both of her friends concerned, but it was Casey who spoke up.

"You getting one of those feelings again."

"No, just a bad idea." the red head replied before rounding her father and climbing onto his back. She then smiled at her friends and offered a hand. "Hop on guys."

"You can't be serious." Casey gapped as he gripped her hand and was soon pulled onto the bat.

"Well, it can't be as bad as Francoeur's driving." Y/n resigned as she too climbed on, taking her place between Casey and April.

Y/n was quick to wrap her arms around April's waist for support, but Casey seemed less concerned. That was until they actually took to the air with a dramatic leap off the side of the roof. As the singer bit back a scream, the man behind her desperately grabbed for her hips. His grip was bruising when he finally found purchase, and didn't let up, not even when their flight evened out into a much gentler soar.

The feeling of flight was exhilarating, Y/n wished she had more time to simply enjoy it. Alas, there was a mission to attend to. With their initial shock faded, the humans began to scan the skies for Stockman Fly. After a few short blocks, they caught sight of him, and quickly made chase. Coming front he left, April redirected her dad to ram into the mutant.

"Ha yes!" Y/n cheered as they threw the fly off balance.

"Get him dad," April encouraged. "Knock him out of the sky!"

The only one who didn't match their excitement was Casey who was still gripping Y/n's hip to stay steady, eyes scanning the ground below. "So, we're like riding your giant mutant dad? This is so weird."

The singer couldn't help but laugh, throwing her head back just enough to look at the man. "You've been with the crowd for how long? Weird seems to be the standard."

Suddenly Mr. O'Neil lurched forward as he began to blindly follow the fly mutant. Despair not to fall the humans to cling to each other. Y/n's arms were securely around April's waist, as Casey held Y/n's hips. Or at least, he was holding her hips. Without warning, the boy's girl shifted to her shoulders. Curious as to what he could be doing, the singer looked behind her only to see Casey shifting his weight while trying to balance on his feet. When he felt confident, the man stood straight on the bat's back, and grabbed one of his weapons.

With a burst of laughter, Casey drew back with his hockey stick. "Swallow this your ugly goop-drooling-"

Before he could finish his taunting Mr. O'Neil took another hard turn, jerking his body to the side. The action took them all but surprise, most of all Casey who was thrown from his position, resulting in a free fall towards the ground.

"Casey!" April screamed for him.

With another jerk, Mr. O'Neil dove for Casey, catching him by the arm causing the girls to sigh in relief. "It's okay, your dad caught him!" Y/n announced.

Comforted with the knowledge of their friend's safely, the girls focused on the task at hand, leading the bat mutant back into the duck and weaving a pattern of chase. As they flew, Stockman turned with a sneer. The fly then reared back before spitting acid in the direction of the girls. They both yelped, but April managed to draw her tessen to block the spit before it could get to them.

Their faces twist with disgust, but the feeling was quickly ignored. There was no time. April continued to navigate, and Y/n glanced down below to check on Casey. The boy seemed somehow more at ease in his current position. He had found the best place to wiggle so that he was holding onto Mr. O'Neil as much as the mutant was gripping him. Felling Y/n's eyes, the man glanced up, shooting her a thumbs up, that she accepted with a nod.

When she looked back up, her eyes widened. They were going straight for a billboard. Luckily, April caught this as well, and pulled back. Her dad hovered in the hair for a few moments as Stockman slammed against the ad with enough force that he threw the vial of Retro-mutagen. They all began to scan the surrounding area, but April finally caught a glimpse of the vial teetering on the edge of a rooftop.

"There!" She announced, causing everyone to rush for the chemical.

Everyone rushed towards the canister, which unfortunately resulted in near misses and collisions rather than anyone actually catching the vial. When the human team missed their opportunity, April was quick to turn them around for a second chase. Unfortunately, when they were still a yard away, the vial shattered against a streetlamp leaving the retro-mutant to slowly drip to the ground

"Hurry! If he gets under it, it should still have an effect, the retro-mutagen is extremely potent. Get a few positive cells made and it'll spread like wildfire!" Y/n instructed as she urged April forward.

Leaning forward to gain speed, April guided her dad under the final drops to retro-mutagen, managing to catch them on his head at the last minute. A relieved gasp echoed from both the girls, only to turn to one of momentary panic as they looked back ahead to see Raph and Mikey flying towards them with a tarp. In an instant they were shrouded in darkness and painfully tumbling to the ground.

They couldn't see, but they could hear Mr. O'Neil's pain filled cries and could feel his thrashing. Desperately, all three humans fought with the tarp, trying to find an edge for their escape. One by one they managed to wiggle themselves free and rush towards the turtles who had gathered to watch the results. The group watched in silence as the man continued to thrash around until finally a human head emerged for a tear in the tarp.

"Alright!"

"Woo!

"Kirby's back!"

The turtles all cheered as April rushed forward all but tackling her father in a hug.

"Dad! I can't believe it!" She cheered. "I've missed you so much!"

"April? What happened? Where am i?" The man asked desperately. "And why am i nude?"

"Dude then you hear what happened you're going to laugh so hard." Mikey said with a smile and April moved away from her father so that he could stand.

Once he was on his feet the girl momentarily left his side to hug Donatello. "You did it Donnie! You're the best of the best of the best!" April beamed, lifting onto her toes to press a kiss to the turtle's cheek.

Y/n smiled at the scene before glancing over her shoulder, curious to see Leonardo's thoughts on tonight's events. When he looked however, the turtle had already walked a few paces away and was scanning the sky. Curious she approached, placing a hand on his shoulder to alert him of her presence. The turtle looked at her for a moment before scanning the sky again for a few more seconds.

"No sign of stockman fly." the leader hummed. "Add him to the list of stray mutated bad guy freaks running around New York."

"That's a comforting idea." Y/n mumbled as she and Leo shared an uneasy glance.

"Stockman fly is turflytle's greatest enemy, Buzz buzz." Mikey started before derailing into what sounded a bit like a superhero monologue.

Y/n didn't get to listen however, since as soon as he began, Leonardo grabbed her wrist, and led her away while shaking his head. The girl could hear him mutter something about his little brother's antics, but it did nothing more than make her laugh as she wiggled her wrist free. They weren't separated for long, for a moment after she got her wrist free, she reached back down and carefully sorted their fingers so she could interlace her five with his three.

The turtle smiled down at their conjoined hands and continued to lead her donut the street, no doubt back to where the Shell razer was left a few blocks over.

As they wander Y/n squeezed Leonardo's hand with a smile. "So...how did I do on my first mission, Sensei Leonardo?"

"Not bad, my young pupil." He replies, his tone a mocking imitation of his father. "Though we must work on your obedience."

Y/n snorted at the comment, before looking up at his with her arms crossed. "Good luck with that."

"Ah, so you're gonna be a brat then." Leonardo teased as he leaned down enough for them to be eye to eye.

"Whatcha gonna do? Spank me." Y/n taunted before turning to talk away.

"Maybe." the turtle shrugged while falling in step with her, causing the girl to tense in surprise.

"Wait what?"

Without wanting to, a hard slap landed against her ass, making Y/n jump and look up at the turtle in shock, who was simply walking past her as if nothing had happened. "Let's go home. It's late." 

***A/n***

Dudes! this was 20 pages in the google doc, dear lord save me. 

Anywho,  i hope you all are enjoying the story. Since running into the show the chapters have been come longer, and i really hope you don't mind that. I have been able to keep to my upload schedule though which was my goal. Thank you all for the support <3