Together in Insanity (Yandere!Sangwoo x Reader)

Chapter 9

~Sangwoo’s POV~

I stood in the doorway at a lost of words. Moments before I was enraged. Y/n had lied to me. She didn't go out with friends but instead hooked up with some random dick. Moments before I had been so pissed I was going to come in here and beat the guy's ass into a pulp. But moments before Y/n had beat me to it and it was just sexy.

The (h/c) female stood there in all her beauty. She wore the male’s white shirt now speckled with crimson. Her hair was in such a gorgeous disarray: evidence of the struggle. Blood splattered her body and across her face. I was one of those people who hated a mess and she was a beautifully hideous one. But I couldn't stop myself. She was just like me and that only made my infatuation grow. I had to make her mine.

She charged at me with a knife but it only made me harder before I slammed her against the wall. My body pressed against her body as my lips pressed against her lips. I could feel her shock in the kiss but didn't care.

In the corner of my eye I saw the silver-crimson glint of the knife as she raised it to stab me. My hand quickly flies up and grabs her wrist tightly so she's forced to drop the knife. Then I move her hand so it's tangled in my hair.

She growled into the kiss. It was animalistic and so hot I wanted so more. I forced my tongue into her mouth only for her to bite me. I instinctively pulled away and looked to see a sly smirk on her lips. I was going to fuck that cockiness with my own.

“I'm going to fuck you so hard.” I panted, slightly breathless from the intimate kiss. My hands moved down from her hips to lift up her legs over my hips so I could grind against her roughly.

She moaned softly but didn't fight me at all. “What the fuck is wrong with you? Why are you so fucking turned on by this?” I loved that tongue of hers. She would typically censor her words but now she let them run free and it was music to my ears.

“Such a dirty mouth. I'm going to fuck it clean.” I smirked and removed my hands from her to open my pants.

“I don't think cramming your dick in my mouth will clean it in any way.” she said sarcastically but her voice sounded quiet, lustful, and submissive.

I didn't even respond as a lined myself up to her.

“For god’s sake,” she groaned irritably, pushing me away, “put on some fucking protection.”

“I won't cum in you.” I promised. And I wouldn't. This time. I wanted to get her pregnant. That way everyone would know she was mine and we could start a family. Then she'd truly be mine and mine alone. She'd have to come to my place if we had a kid meaning she could no longer avoid it.

Y/n opened her mouth to protest but only gasped as I slammed into her tight hole. “Ah!~ Sangwoo.~” she moaned. I loved that. How she moaned my name. With most slutty bitches I could care less. They were only toys for my pleasure. But with Y/n I wanted something different. I wanted her to submiss to me and I'd kill anyone to make that happen. She would be mine and mine alone. No one would ever dare get between us on the premise of a torturous death.

I groaned ever so softly and slowly slid out so I was just barely inside of her cavern of wonders before slamming back in. Her wet walls squeezed so tightly around my dick that I'd believe she was a virgin if I didn't know better. But I did know better and I was determined to make this lying slut mine.

I kept another moan from rolling from my mouth as my hands squeezed her soft thighs firmly. My lips began to busy themselves by sucking and kissing along her neck. They left dark red and purple hickeys wherever they made contact so everyone knew she was mine and mine alone.

Her hands tangled themselves into my hair, pulling on the locks with passion. I push closer, enjoying the slightly painful feeling. I was no masochist but with her it just felt so good.

Her own lips kissed up my neck to just under my ear. Her teeth gently nibbled on my earlobe and her tongue flicked and played with it. She didn't even try to silence her moans as I thrusted into her pussy. Her sounds left her lips right into my ear driving me crazy and she knew it drive me crazy that was the best part about it.

I kept changing the angle of how our hips collided ever so slightly to find that one spot that sent her up the walls with pleasure. It didn't take long.

“S-Sangwoo!~” she stuttered out through a moan. I knew from the slight change in pitch in her voice that I had found her sweet spot. I smirked and quickly pounded into it hard and fast.

Sweat dripped from my forehead. I had never really put so much effort into fucking a ho but I wanted Y/n to feel the pleasure of my dick in her so she'd love it and only it. That only it could satisfy her needs. That way she'd only want me.

Her tight walls felt so soft and squishy on my cock as I thrusted in and out, boring away at her one spot. Her moans became louder and more frequent. I panted and sucked on her breasts feeling myself twitch inside of her. I was so close and I could feel she was too.

“Sangwoo!” she yelled out my name as she orgasmed. I grunted in response and immediately came on the wall behind her.

We both panted heavily while we stayed there like that: our bodies pressed together as one. I loved how her small frame felt against mine. How it fit so perfect against mine. How it was mine. I leaned forward and kissed her deeply.

She broke it after a moment and pushed me arms length away. “Sangwoo…” she said. Her voice and expression were filled with lust. I felt myself getting excited once again.

She maintained eye contact with me as her hand reached down to swipe something off the floor. I wasn't paying much attention to that. I was more focused on the teasing way her tongue glided over her lip. So much in fact that I almost didn't catch the knife she thrusted into my gut.

I twisted it out of her hand and didn't make the same mistake as last time. This time I threw it out the window that was just so conveniently open. I chuckled at her pissed expression and kissed her once again with my hand cupping her flawless face. Pulling away I smiled that smile-the one I knew made girl's knees weak.

“Just let me kill you.” She was pissed, lustful, and clearly not thinking straight. I loved it. It only made me want her more. She would be mine.

My smile slipped into a smirk. “And why should I do that?~”

“Because you want to make me happy. And I'll only be happy with your pretty little head on a stick.” I held her hips against mine. Our parts pressing against each other. It was clear we both wanted more.

I didn't really want make her happy though. I just wanted her to be mine. My smirk grew as I imagined her groveling on her knees like a dog. She would do anything I wanted without question. She would be my obedient cumslut. But I could tell that wasn't the kind of girl she was. I definitely had my work cut out for me.