Key Word(s): s/n:sister name, e/c:eye color
You and Leo were in his room, talking privately, you talked about each other's lives and such. Leo was however curious about how you got mutated, he was planning to ask you now.
"Hey [Y/N]?" He asked softly, your ear twitched, then you sat up quickly.
"Yes Leo?" You reply, though he looked like he was nervous.
"H-How were you.... you know.. mutated in the first place?" That made you freeze, after getting used to living with him you wished he hadn't asked. He seemed needy about it, you put your ears down and turned your head to not look at him, he frowned and started stroking you. You started melting in his soft touch, it was another way to convince you, you sighed and gave in.
"Alright, I'm only telling this to you, okay?" He nodded and then listened carefully of how your story goes...
Flashback:
You and your sister [s/n] were playing in front of your apartment, your sister was pretty needy for your companionship so you gave in. It was a cold, starry night, the breeze was cool and it felt good against yourselves.Your parents were inside preparing dinner while you played, the night was peaceful and calm, the city was quiet with no cars passing by, the only sounds were you and your sister's laughs.The night continued peacefully, you eventually started going in when...
A van blocked the entrance making you both jump back in surprise, you've never saw a van like this before but the enemy seemed familiar. Kraang. April's father knew your dad and he told him all about the Kraang, your eyes widened and you crawled back when your sister felt something hard against her back. A Kraang droid was pointing a laser at you two.
"Kraang has got the ones known as [Y/N] and what Kraang calls as sister." The Kraang droid said, you were shocked to the fact that they know you and your sister.
"What do you want from us?!" You snapped, a Kraang droid held you and your sister, you struggled against their grip but it was no use.
"Let us go!!!!" Your sister demanded angrily, a Kraang droid came with a weird glowing substance. Mutagen. It made your eyes widen, your father told you it could... mutate you. You gasp and thrash around not wanting to mutate, your sister kicked a Kraang droid on the leg while punching another one, the Kraang droids turned around when she beat down most of them.You smiled, then more Kraang came and your eyes once again widen.
"[s/n]!!!!" You yell when they threw a mutagen canister at her, your sister gasps when you jumped in front of her making the canister splash on you instead. You laid on top of your sister, suddenly you started...changing, you felt pain all around your body and started to loose your once [e/c] into yellow ones.
Then your teeth became sharper until they looked like canines, you grew a long furry tail, ears that were big, then finally your body was growing thick gray fur. The last were the paws and claws, after that you panted and laid tiredly at the ground, your sister nervously went to you and called.
"[Y/N]..?"You looked at her, then growled and pounced on her making her scream. You tried biting her but she held your head, then that's when your parents came with Toby. Toby barked aggressively, you growled at him showing off your sharp canines, your dad tried making you back off.
"[s/n],where's [Y/N]?!" Your mom asked [s/n].
"She.. she's the wolf.." She shakily pointed to you, while you were slowly walking towards your dad.
"[Y/N],stop this!!!" Your dad demanded but you kept walking towards him, your mom gasped and hit you with a rock.You turn to her and showed your teeth, the Kraang were about to leave when..
"KRAANG!!!" Your dad yelled, the Kraang started shooting lasers at them, you turn to them and fought them off. You rip them by pieces and claw them, one Kraang droid's laser gun had a razor and scratched you by the left eye,you whimpered a little.
But quickly recovered then killed them all, you turn to your family,they were all scared, your eyes softened a little, you on the other hand tried to recognize them but the memories faded, you quickly growled and charged at them.Then you killed them one by one... even Toby, when you finished the bloodshed you quickly realized what you did and ran away crying.
Now after 2 years you were now 12, you were 10 when it happened, you went to the middle of the city and stayed away from your home leaving the past behind. As you continued on with life, it was miserable..
End Of Flashback...
That's when you started crying, Leo started crying a little, he understands now. All you wanted to do was leave the past behind so you cannot have a bad future, but he didn't know why you didn't freak out on him when you met but he shook it off and hugged you.You nuzzle your head against his plastron crying and wrapping your tail around you both, outside Leo's room his family heard everything and som e of them cried silently and then went back to their own things.
It was all clear now...
A/N:I Am Not Dead :),this one's a shortie but enjoy it anyway?
-Katie_Star12EDIT 2019: The cringy chapter is now edited!

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Something Else... (TMNT Leo X Reader) (Edited)
FanfictionNOTE: This is a VERY old book. But lucky for you, I fixed it up for ya'll! If there are any more mistakes, do tell me. Enjoy! And also, a remake of the sequel is out: 'Into The Darkness' (Now Completed) You're a mutant wolf who is controlled by non...