A/N: This was requested by @Ashes_HQ ! I hope you enjoy and thank you so much for requesting my Smol Bby Boy Tooru akajshdhsk

WARNING: THIS IS SMUT. SKIP IF YOU'RE UNCOMFORTABLE! Tooru has some kind of sensei kink in this one wink wonk. What a hottie.

(Heads up ya'll you're getting two days straight of Tooru smut bc of requests r i p)

I'm also sorry for not letting the reader get off too, I was just so focused on Tooru himself ;-;

As horrible as he knew it was, Tooru couldn't take his eyes away from you as you spoke with Haise about certain cases that were assigned to the Quinx Squad. He still hadn't been able to move on from the initial shock he had received when he learned that one of his mentors was going to be you. You were just... He doesn't even know how to describe it. You're just... Your...

What were you doing babysitting a group of young adults?

Yeah, that was a nice way to put it. You deserved way better than the task you were given. Mutsuki actually felt bad whenever he'd see you trying to talk Urie out of things, or when you were in charge of attempting to get Saiko to leave her room (so far, you hadn't been able to do either). It certainly looked like a struggle and Tooru admired you for your strength and patience with them.

Not to mention how caring and passionate you were about things. The way you talked about things you loved was so endearing (one of them being the Quinx Squad, some how. He doesn't know how you managed to actually like babysitting them) to him. He also couldn't stand the way you looked at him whenever you two talked.

You always gave him a serene smile, your eyes looking at him with what looked like tenderness to him. Every time you'd say his name, it would send shivers down his spine (especially with the way you rolled the 'r' in his first name). Combine that with the fact that you'd take every opportunity you had to strike up a casual conversation with the boy and he was a goner. He doesn't want to brag or feel over-confident but... He had a feeling that he was your favourite Quinx. And that did things to him. Wonderful things.

So far, he knew he should have been ashamed of taking such a liking to his mentor, but he just couldn't stop himself. How could he? You were lovable in each and every way he could think of. Not to mention incredibly attractive...

His face burned bright red as he realized he was thinking all of this in your very presence. Without drawing too much attention to himself, the boy got up from his place on the couch and went upstairs to hide in his room. He felt like he was drowning in shame.

As soon as he had closed his door shut, Tooru threw himself onto his bed, burying his face in his pillow as he let out a frustrated scream. Why did he have to be the way he was? Why did he have to let himself fall so far into this weird... crush thing? Obsession? Infatuation? Love? He has no idea how he felt for you, but he does know that he wants to hold your hand. And kiss you. And hold you close. And feel you against his bare skin. He wants to lay beneath you and allow you to do whatever you pleased with his body. He wants to moan and scream your name until his vocal chords give out. He wants to be able to drag his nails down your back and feel as your muscles flex and relax under his hands. He wants you to worship his body and tell him how attractive he is to you.

The heat between his legs was too much for him to ignore. He knew he could have avoided this entire situation by just not thinking the way he thought, but in moments like these, he couldn't stop himself. You were like a craving to him-- No, more like an addiction. He can't just stop thinking about you.

Mutsuki got up from his bed, ignoring the pouding arousal pooling up in his lower abdomen and stood up, striping completely naked. Once his clothes were scattered on the floor next to his bed, Tooru climbed back in and laid on his back.

His hands aren't his anymore. They are now yours. And they're gently trailing down his body, as light as a feather. They brushed over his abdominal muscles and Tooru let out a small sigh as he heard your voice inside his mind, as clear as it could be.

"You're so handsome, Tooru..." You praised. The imagined words sent shivers down his spine. The fact that you'd choose him, your subordinate, out of anyone -- even if it were just in his imagination -- was enough to have him turned on. His mentor finds him attractive and that's more than enough to light a fire in his belly.

His -- no, your hand finally found its way between his legs, spreading him for you to see. His lower back slightly arched off the bed as he spread his legs as wide as they could go. Your thumb pulled over the hood of his clit as your index gently stroked the nub, making him let out a shameless whine.

"Sensei..." He let out while your other hand went up to his green hair to tug at it.

You teased him this way for a few more seconds until you deemed him wet enough to take in two of your fingers. His hips jerked up when your two digits sank in him and started pumping in and out at a slow pace.

He wanted more. He wanted to make you as hot and bothered as possible with his reactions only. "(Y/N), faster." He panted. "Babe, I want y-" The creak of his door snapped him out of his fantasy. His head jerked up just in time for him to see you peak your head in.

"Mutsuki? H-" The boy ripped his hand away from between his legs and froze in place as soon as your gaze fell on his naked form. The two of you engaged in a staring battle, neither brave enough to break away from the other's gaze.

"I-I'm sorry, I should have knocked and waited for you to... come get the door." You apologized, afraid of looking away from his frightened olive green eyes. You noticed him pale up even more as his breath hitched in his throat. You visibly noticed that he was (well, all you focused on was his face for now, so you couldn't exactly determine if the same was happening to the rest of his body) starting to sweat. That must not be good... "Tooru, are you alright?" You sweetly asked. You'd feel horrible if you just gave the poor boy an anxiety attack.

Tears of shame welled up in his eyes as he kept his gaze focused on you. He had no idea what to do. "I'm sorry..." He managed to choke out. The carbon dioxide he let out wasn't replaced with oxygen. He was having so much trouble breathing... And why was his entire body feeling all tingly?

"Honey," You muttered, putting aside your shame. He was having an anxiety attack right now. You hurried to his bedside and sat down, putting a hand on his shoulder. Just as you sat down, you noticed he had begun to lose even more colour. "Tooru, breathe. Breathe through your abdomen for me, okay? You're alright. You're safe, I haven't seen anything." Okay, that last part was a lie, but you had been focusing on his face as soon as you knew what was going on.

The teenager did as he was told, trying his best to breathe. As air circulated in his lungs (with great difficulty), his stress hadn't gone down, which made you put a hand on his other shoulder. "You need to calm down, Tooru. Relax, let your body do its thing. Just try to."

He nodded and shivered as your hands rubbed on his naked shoulders in an attempt to calm him. It helped, but not enough to tone down his stress. Not too long after you made that realization, you did something he would have never thought you would do.

You leaned down and gently pressed your lips on his.

The kiss wasn't lustful, nor was it forced. It was just... Simple. Sweet. He liked it. It also helped him considerably calm down.

You pulled away too soon for his liking, making him pout. He can't just stop now.

Before you could ask about his state, the young adult sat up, cupping the back of your neck to press his lips against yours again in a more feverish manner. He had no idea how, but his arousal survived his small panic attack. If he had the chance of having you help him relieve it, he'd damn well take it.

You had kissed him back but pulled away before he could slide his tongue into your mouth and finally get to taste you. "Are you sure you're alright, Mutsuki? I don't... We shouldn't be doing this..." You hesitantly muttered as his lips hovered over yours, desperate to feel what he considered ecstasy once more.

Mutsuki stopped for a second to think about just what he was doing. Was he putting you in an uncomfortable situation? You seemed to enjoy kissing him, but... You were older than him, maybe twenty-two or twenty-three. He'd understand if you weren't into nineteen year-olds (was that illegal? He doesn't think so). But the fact that the two of you could be doing something so... taboo. A mentor and their student. That sounded so hot to him. He practically started drooling just from thinking about it.

"I want to..." He breathed against your lips. "Do you want to?"

Your hands hesitantly made their way to his waist, debating whether or not this was a good idea. "I do." You whispered back, straddling him as your lips smashed together again. Your hands flew up to his cheeks, cupping them as Tooru laid back down in his bed, you hovering above him. His hands slid under your shirt as your tongue poked through is lips, caressing the roof of his mouth before engaging in a battle with his own muscle.

Tooru couldn't help but let out a meek whine at the odd but pleasurable contact, encouraging you to keep going.

Once you had explored every inch of his mouth, you dipped your head down to his jaw, gently pressing open mouthed kisses on it. One of your hands went to his chin, holding his head up as you made your way down his neck. You carefully nipped at his skin, licked up his throat and made sure to give as much attention to the other side of his neck as you did with the first one. Once his entire neck was damp from your saliva, you leaned back, giving him a breather. Tooru's neck was really sensitive, from what you saw...

"Sensei," Mutsuki whined, grinding his hips up in hopes of meeting your own core. Sadly, he got no contact whatsoever. "I'm begging you... Do something."

You looked down at the desperate male, deciding that he did deserve some relief. "Here," You said, extending your hand and pulling him up into a seated position in front of you once he took it. "Tell me if it's too much for you, okay?"

"Yes." Your subordinate accidentally moaned as you sucked at the juncture connecting his shoulder to his neck.

Your non-dominant hand snaked around his abdomen, bringing him closer so he'd be leaning his back on your chest. Once he was as close to you as possible, your second hand wandered around his abs, making sure to praise him. "You're such a handsome boy, Tooru." You whispered against the shell of his ear before licking and nipping at it.

Just as the male's breath hitched due to the contact, your hand trailed over his now dripping wet pussy. His hips stuttered a bit as you explored his nether regions. After a few moments, you decided to start by pushing your middle finger in while your thumb worked on his clitoris.

Tooru's eyes fluttered shut and his eyebrows furrowed as he hummed in pleasure, taking in deep, shaky breaths as you slowly fingered him. His mouth parted open as soon as your mouth latched on his jawline, sucking on the skin there and tracing your tongue over it. A whiny moan escaped him as his hand found its way to the back of your head, keeping your face nuzzled in his neck.

You accelerated the pace of the hand that was toying with him, adding your index finger inside of him as you applied a bit more pressure to his clit. Tooru couldn't help but grind down on your hand as you chuckled. "You're doing so well, honey." You praised in his ear, making the male shudder. "Do you like it?"

"I love it," He assured, gasping when your thumb traced over his sensitive numb in a certain way. "I love it s-so mu-uuch, Sensei... I love you!" Another loud groan ripped through his throat, indicating that he was extremely close to his climax.

As your fingers worked on him even faster, Mutsuki pulled your face up to kiss you, immediately muffling what must have been his loudest moan yet. You drank up his sounds, shoving your tongue in his mouth as his walls clenched around your digits.

Tooru's body shook as he came down from his high, panting into your heated kiss.

Once he had calmed down, you gently pulled your fingers out of him, satisfied with his orgasm and ignored your own burning arousal with everything you had. You'd take care of that later, seeing as the poor boy was practically exhausted. You kept intense eye contact with Tooru as you licked his fluids off of your hand, fighting back a smirk as he watched your every move.

"Did you like it?" You asked as the male turned towards you, nodding. He had a feeling that if he talked, his voice would crack.

It's much better than doing it myself, he would have wanted to say.

You gave him a warm smile. "I'm glad. And hey, if anything happens, you can always come see me, alright?" Your hand brushed the underside of his chin, making his eyes flutter shut at your delicate touch. It made your heart swell up with endearment. You pecked his lips before dragging him down to lay in his bed.

"Oh, and I might love you too, by the way."