𝐦𝐮𝐥𝐭𝐢 𝐟𝐚𝐧𝐝𝐨𝐦 𝐨𝐧𝐞 𝐬𝐡𝐨𝐭𝐬

hero / / mm!yandere!leonardo

ship/pairing: Mutant Mayhem!Yandere!Leo x g/n!reader

fandom: TMNT: Mutant Mayhem

warnings: swearing, Leo being delusional, manipulative behaviour, guilt tripping, being tied up, gags, kidnapping

word count: 1007

A/N: 18+ people DNI. i only saw mutant mayhem in cinemas once like a month ago so this might be ooc. i do not in any way support yandere behaviour, please know that this writing is purely fictional, and should not ever be reenacted in real life. TCESTERS DNI

Leo exhaled heavily, staring at his reflection in the mirror. He whispered to himself 'you got this,' over and over like a mantra. He was so nervous, nothing could calm him down. You were in the sewers with him, he couldn't even imagine being calm. He gave up on calming his nerves, deciding to greet you as he was, jittery and giddy. He entered the secluded part of the sewers he cleared out just for you, not being able to contain his smile as he met your eyes - your mouth being covered with the gag he gave you. You didn't look as excited as he was... You were probably just confused, that was all. Once Leo explained everything, you'd be smiling in no time. He neared closer to you, frowning at the way you shuffled back toward the wall, but he rationalised that you were just too excited to meet him, and was just as giddy as he was.

"HEy." Leo internally cringed at the crack in his voice, but kept a calm face in front of you, "Sorry for keeping you tied up so long, I had to finish up some stuff with my brothers." he paused, before realisation dawned on him, "Oh and sorry for keeping that gag on you for so long," he walked your way, stopping in front of you to untie the gag, "I knew you'd be confused and I didn't want you to hurt your throat by-"

"What the fuck are you doing?!" Leo jumped back when you yelled, not prepared for your hostility.

"Hey," he looked behind him, double checking no one else was near, "Y/N, you need to keep it down, or I'm gonna have to put the gag back on, and I really don't wanna do that." he said, almost pleading with you.

"You have thirty seconds to explain to me what you think you're doing." you spat, glaring at Leo to hide the fear in your eyes. You did stay quiet, so Leo did appreciate that.

He nodded, exhaling quickly, "Ok, so we go to the same school, I dunno if you've ever noticed me, you probably haven't-"

"Yeah, I never noticed four turtle mutants at my school."

Leo instantly perked up, "So you have noticed me?" you said nothing, staring at him with a frustrated look, "Right, never mind. I- You just looked so lonely at school, I figured you needed a friend."

You scoffed, and Leo didn't miss the feeling of pure fear in your voice that you tried to cover up, "So your first thought is to kidnap me?"

Leo cringed, "Can you maybe not use that word?"

Your eyebrows raised, "Kidnap?" he nodded, "No, because it's the exact word to describe what you're doing."

"Well you're making me out to be some kind of monster. I just..." he sighed, "I really like you and I thought I could be your friend, or something..."

"Well you could've been if not for the kidnapping."

He brought his hands to his face, laughing awkwardly, "Can you stop? I'm trying to help you, it's not my fault you're not taking this well." he saw your unconvinced expression and stood up, beginning to pace around the room "I'm a hero, you know I'm a hero. My brothers and I saved the city. I'm trying to do a good thing for you, and I really want you to be happy down here, with me. So can you just stop being so negative?"

You just stared at him speechless. You realised pretty quickly that you wouldn't be able to convince him that what he was doing was wrong. It seemed his mind was made up. But you also noticed that he seemed pretty determined to keep you happy, and was convinced that you weren't happy without him.

"Leo listen to me," you began, seeing the corners of his lips turn up slightly at the fact that you knew his name, "I know you think you're helping me or whatever, but you're really not. I'm fine, I really am. You-you can let me go, and I won't tell anyone about this, I swear." you couldn't stop the tears forming in your eyes. You didn't want him to know, but you were truly terrified.

He narrowed his eyes at you, "What do you mean? I-I'm helping. I don't understand why you wouldn't think that..." you opened your mouth to speak but he quickly cut you off, "I-is this because I'm a mutant?"

You furrowed your eyebrows, "What?"

"You just think I'm some kind of monster, don't you?" he asked, a hurt look in his eyes as he stared at you.

"Leo, you're not listening to me-" you attempted to say, but Leo cut you off again.

"Well I'm sorry I'm not a human, but last I checked, no human cares enough about you to give you this kind of help." he scoffed, turning around and beginning to walk away.

"Leo, what are you doing?" you asked fearfully, pulling on the ropes around your hands.

He turned back to meet your eyes, "If you hate me so much, I'll just leave you alone then."

You suppress a groan of frustration, "Can you just-"

Leo turned around sharply, a sharp glare sent your way, but you could still see the hope in his eyes, "Just what? If you're gonna yell at me again, I don't wanna hear it."

"I don't want to be here. You're really scaring me, and I want to go home. This isn't what heroes do, Leo." you insisted, staring deep into Leo's eyes, hoping you would reach him.

In the blink of an eye, you saw his face fall, his once tense and frustrated expression replaced with drooped eyelids, frowning lips and slumped shoulders. He stared at you for what felt like an eternity, before his lips turned upwards slightly, a calm expression forced upon his face, "It's ok, Y/N. You're confused, you're not used to this yet. You don't understand now, but you will soon. I promise."