Osomatsu-san Oneshots (Book 3)

Karamatsu x Yandere! reader

For berry_sugarplum

I blush hard as I peak around the corner to watch him. He was so cute. With his shy behavior and those soft eyes. He was so perfect and I loved him so much. I wanted him to be mine. I needed him to be mine. I hide back around the corner when he looks over. If only I could tell him how I really feel. I managed to become his friend but I need to tell him that I love him.

But that Totoko girl is a hazard to my plan.

A hazard that at some point needs to be dealt with.

I was hanging out at the brothers house with Karamatsu. The others had gone out to do whatever it was they said. At the moment I was scrolling through the news with a smirk. Heh they still haven't found Totoko. Great. I think with a smirk and I hear Karamatsu hum. "What's got you smiling y/n?" He asks and I hum. "Oh nothing. Just saw some good news." I say and he hums

"Anything on Totoko's disappearance?" He asks and I held back a groan as I shook my head. "No. I did pass an article saying that they were still looking though." I say and he sighs before glancing out the window. "I hope she's okay. Wherever she is." He says and I narrow my eyes before setting my phone down. "Why do you care so much about her?" I ask and he hums

"Seriously. I mean she didn't really pay attention to you in high school and as an adult she would basically abuse you." I say and he hums "Well I guess but that doesn't mean I'm not worried." He says and I walk over with a hum. "It's cause you like her isn't it?" I ask as I stand over him and he looks up at me with a hum. "I..I guess I like her a little bit but I'm more concerned-" "Why?!" I shout and he flinches.

"Why would you like someone like her?! She's a manipulative, attention seeking bitch!" I shout and he stares at me. "She doesn't even like you or any of the brothers! She'll never truly love you! Not like I do!" I shout and he glances away before staring up at me. "You don't need to be so angry...wait did you say that you-" "that I love you? Yeah." I say cutting him off and he glances away.

"I..I don't know what to say." He says and I hum before sitting in front of him. "Just say you love me too." I say scooting closer as I lean in. But he scoots back. "I..I don't think I can..I'm sorry but I don't feel the same way." He says and my face drops before twisting into a scowl. He looks at me and flinches "You don't feel the same way? Seriously...after everything I've done." I say and he hums "I've done so much for you hoping that you one day would say you love me...I've waited..patiently..just to hear you say that..hehe maybe you just don't understand how much I love you. Yeah..that must be it."

I look up with a smile and scoot closer while he backs up to the wall. I place my heads beside his head and he gulps "y-y/n..what are you doing?" He asks and I lean in with a smile "I'm gonna show you my love Karamatsu. Won't you accept it?" I ask as I lean in closer. Our lips inches apart. "Y/n..I'm sorry if I've hurt you but I really can not return your feel-" I move my hand to grab his face before kissing him.

He squeaks and tries to pull away. He even tries to push me away. I pull away with a smirk. "You're being so mean Karamatsu~ I'm just trying to show my love~" I coo and he glances away. "Even so. I have told you that I don't-" I place a finger over his lips "Karamatsu I don't think you realize what I have done to make sure you'd be mine." I say and he hums "What do you mean?" He asks and I pull my finger away to lay on mine. I giggle with a smile

"Let's just say that I'd kill for your love~"

His eyes widen and I could sense he was scared. I smile and lean in to hold his face in my hands. "Sh~ it's okay~ don't be scared~" I coo and he gulps nervously. He was silent probably from fear. "I did it so we could be together. I love you Karamatsu." I say and lean in. He doesn't pull away as I kiss him. I smile and wrap my arms around his neck as I pull away.

"You love me too right?" I ask and he glances away before sighing. He turns back with a shaky smile "y-yeah." He says and I smile before kissing him. He hums and squeaks as I deepen the kiss. Again he didn't push me away just lifts his hands to rest on my hips. I pull away with a heavy blush before reaching down to tug at his bottoms. He glances down before looking at me. He sighs and nods "go ahead." I smile and kiss him deeply as I tug his bottoms off.

"Huh? You're dating now?"

I nod with a smile at Osomatsu's question as I hug Karamatsu's arm. His brothers look at him and he hums. "You okay Karamatsu?" Choromatsu asks and he hums "yes, why do you ask?" He asks and Todomatsu buts in. "You seem...off. Did something happen?" He asks and Karamatsu smiles with a chuckle "Do not worry about me. I'm okay." He says and I hug his arm tighter. His brothers didn't seem satisfied with his answer but they dropped it.

Karamatsu was mine now and I was never gonna let him go.

Never ever.