The slider and the mutant (Feral Leo x Reader)

Hydration is key, kids

~Raph~
Well, that's one way to get back at me after I threw you at a wall Leo, to bite me.
Not exactly how I pictured it, but it'll do.
Leo stared at me with a fearful expression, my blood appearing on his teeth, which were strangely sharper than I remember. I mean, he broke skin!
"It's okay Leo," I said with a smile.
Donnie scoffed. "Okay?! Raph, he bit you! You're bleeding!"
"We probably just spooked him, that's all." I said softly.
I stared into Leo's eyes, I know exactly what he's thinking.
I'm a monster.
"Leo, it's not your fault, I shouldn't have put you in the bath without warning you." I apologized. I felt my arm being gently lifted and I looked to see it was Mikey, holding my arm while wrapping it in bandages with a solemn expression.
"Thanks lil' bro." I said.
Deep down, I was angry, so, very angry, at myself, I hurt Leo, that's the only reason he bit me. Because I hurt him, he bit me.
But I couldn't lash out at everyone, I can't, I don't want to scare them anymore than I did to Leo.
There was a knock at the door. Casey opened it.
"Oh! Hi Grandmaster Splinter!" Casey greeted, slightly bowing. Dad reached up and patted Casey on the cheek.
"Please, just call me Splinter, I am far too old for these formal greetings." He said with a smile.
"O-oh, right, sorry." Casey stood up straight and followed after Dad.
"I heard a crash, is everyone okay-" He was cut off by the sight of my arm, and Leo's mouth slightly dripping with blood.
"Oh, my sons, what happened?" He softly asked.
"Leo bit Raph after we tried to get him in the bath." Donnie explained.
"We got him in the bath, right? Isn't that all that matters?" I asked, putting on a fake smile.
"Raphael, you are bleeding through your bandages though." Dad pointed out.
I looked down at my arm, sure enough, there was a blotch of blood peaking through the bandages.
Splash!
I looked at Leo, he was in his shell, quivering.
"I got it." Donnie walked over to Leo and gently held him in his arms. Then he motioned his head towards Y/N.
"Y/N, I suggest you come, you might be emotional support, anybody else is welcome to tag along too." He said.
Y/N didn't say anything, they just stood up and followed after Donnie, probably back to the medbay.
"I'll go!" I offered, "I could hold Leo in place in case he starts to fight-"
"Raphael, need I remind you that Leonardo bit your arm? That and you are bleeding still, let me take care of you and then you can rest." Dad offered.
"I promise Pops, I'm okay." I argued.
"No Raphael, I do not want to risk you getting hurt again." He put his hand on my bandaged arm, causing me to wince as sharp pain singed through it.
Everyone else had filed out the room and trailed after Donnie.
"I know you are angry at yourself for hurting Baby Blue." He said softly.
I couldn't help the tears that started streaming down my face, I buried myself in dad's fur as I held him close to me.
Dad said nothing. Making me want to cry more, how can he not be angry at me for hurting Leo like that?
How could anybody not be angry at
Me?

~Casey~
I lightly wiped Leo's mouth with a rag. Let's just say, he bit Raph really hard.
Like really hard.
"I don't understand h-how Leo could draw s-s-so much blood from Raph." Y/N stated.
Donnie made a clicking noise. "It is intriguing, permission to study him Y/N?" He asked.
"What? N-"
"Actually don't answer that, I'm going to do that anyway." Donnie interrupted. Y/N growled underneath their breath. They hoisted Leo even more in their arms, afraid they might drop him.
"He might bite you too Donnie." April said, pointing a finger in Donnie's direction.
"Which is why I will make a layer of titanium for armor, or just tie him down."
"That's called animal cruelty." I said, I held out a cup to Leo's mouth, he sniffed it. Y/N motioned for Leo to spit in it, instead, he drooled out a long string of Raphael's blood. Drool, weird. Though it's nothing compared to what I've seen, Master Leonardo, or dad, nearly filled up a cup once from his own blood.
"I hope he doesn't have rabies." Mikey perked up.
I looked over at him, his hands were folded close to his chest, intertwined with each other as he looked at Leo with a cautious glare.
"Impossible, symptoms of rabies include: fever, headache, excess salivation, muscle spasms, paralysis, and mental confusion." Donnie stated.
Leo let out a pained whine as his bicep flexed and deflexed rapidly, he started to squirm in Y/N's grasp.
Before anyone could react, I gently grabbed Leo's bicep and started to massage it, he tried retracting it into his shell but I held it.
Firm but gentle.
A moment later the spasm stopped. Which ended in everyone glaring daggers at Donnie.
"What? How was I supposed to know that Leo would randomly have a muscle spasm? I'm not a magician I swear." Donnie raised his hands if defensively.
"T-the drooling." Y/N's voice stood out among the clamoring. "He's de-dehydrated."
"How does that portray the situation Y/N?"
Y/N scoffed and rolled their eyes. "F-for a 'genius' like y-you, you should know t-that muscle spasms can be-be caused by d-dehydration. They snapped.
Donnie scoffed at the rude remark and typed something in one his wrist. "Oh, well would you look at that it is."
Y/N smirked at him.
"Here you go!" Mikey shoved a bottle of water in my hand. "I always come prepared."
I shrugged and turned towards Leo, both arms and legs were in his shell and his head was slightly drooping.
"T-tired too."
"Doesn't make sense, he literally just woke up from a nap." April said.
"His eyes!" Mikey shouted, causing Leo and Y/N to flinch.
I looked at Y/N, they nodded and reached down to gently hold one of Leo's eyes open. He hissed and tried batting their hand away. But it didn't budge.
Leo's eyes were bloodshot, heavy eye bags and dark circles were around the perimeter. How did I miss that? He doesn't even have his bandana on and I still missed a prominent detail!
"It's okay Casey, none of us noticed either." April's voiced cleared me from my thoughts, she placed a hand on my shoulder.
Y/N let go of Leo's eyelids.
"Thanks." I smiled at her.
"Okay, water." I opened the water bottle.
"I don't know if you can understand me, but you need water." I said, Leo stared at the water bottle in fear.
Chirp!