My Other Half

All characters depicted are over the age of 18. This story contains incest, mentions of sexual assault, and violence.

This story is a long one and begins with a slow burn.

Edit: Many commenters pointed out the glaring grammar issues, so I decided to edit the story after proofreading and cleaning it up.

Chapter One

"So you dropped out?" my twin sister, Marina, asked from behind me, where she sat on the edge of my bed. I was sitting in front of my pc finishing up some coding I had been working on for an indie game I was developing. I sighed and turned my chair to face her. She sat cross-legged on the edge of my bed in a pink shirt that hung about mid-thigh. Her long legs were bare except for a pair of thigh-high fuzzy socks. I eyed her silently for a bit, then nodded, turning back to the screen to save my work so I didn't fuck up an hour's worth of coding.

"You remember what Dad said when he agreed to pay half our rent, Sy?" She always used the shortened form of my name when she was annoyed. My name was Sylas to her--unless she was annoyed, in which case it was Sy.

"Yes, Marina. I remember. Dad would only pay for half the rent if-"

"We both were working or in school. And you dropped out." She said, cutting across me. While it was true I had dropped out of school, I had done it for a good reason.

"Come on, Marina. I dropped out so I could focus full-time on this game. Among other things."

"That's a stupid reason." She said.

Well, I had thought it was a good reason.

"Apartments in Chicago aren't cheap if you didn't notice, brother mine."

My sister and I had graduated high school four years ago and took a year off. We were accepted into Northwestern University and decided to move in together since we were in the same school. Marina was working on her law degree, and I was taking management courses. Our father was a big-shot money guy back in New York City, and he wanted me to follow in his footsteps. I couldn't think of anything less appealing. He had paid our first two months, then said he would pay half the rent and let us handle the other half with the stipulation that we both had to be working or in school.

Marina and I had always gotten along. Our mother used to say we were the same soul born into two bodies. That could be true. We were as close as anyone could be. Her current boyfriend, Mike, got annoyed at how much time we spent together. Fuck him. She was my best friend and my favorite person in the world. However, she could also be the most annoying person in the world.

"Yeah, I know. I'll put more time into my game but can do something full-time. Jason has been begging me to do some coding at his game dev studio." Jason was an old friend from high school who had kept in touch. He started a video game development studio shortly after high school. Jason had done alright and released a game shortly after forming that had gotten a bit of buzz from video game media outlets that summer. I even saw it on the Steam Discover page. It had solid reviews.

"Maybe," my sister said. She was quiet for a bit, then groaned and sat up. "I suggest you call him and take him up on his offer. Once Dad figures out you dropped out of school..." She let her sentence hang as she slid off the bed and stretched, stifling a yawn. Her T-shirt rode up her thighs a bit as she did, showing off her panties. The panties in question were lilac-colored and incredibly sheer. I looked away hurriedly as I realized I could make out her vagina through the fabric. I felt her come up behind me, wrap her arms around my neck and hug me. She held the hug for a bit, and I put a hand on her arm and patted it. She kissed me on the top of the head and then patted it briefly.

"Well, I'm going to bed. Don't stay up too late. Mom wants us to meet her for brunch downtown. I'll be damned if I go, and you sleep in."

I mumbled an affirmative noise and went back to coding. A minute passed, and I heard the door softly click shut and turned to look. I smiled at the closed door and turned back to my computer.

An hour later, I leaned back from the desk and stretched. Looking at the clock, I sighed, turned my monitor off, rose from the computer chair, and entered the hall. My bladder was so full it might burst, so I headed for the restroom down the hall. I stopped by my sister's room momentarily when I heard a noise. It sounded like she was sobbing or something, so I approached her door. The door was slightly ajar, and a faint light fell through the crack into the hallway. I peered through the crack, and my eyes went wide. My sister was lying on her back on the bed, naked from the waist down. Her t-shirt was bunched up over her tits, and she was rubbing her clit with a vibrator. As I watched, her legs began to shake, and she pushed two fingers into her shaved pussy. A few seconds later, she groaned, and her toes curled. Her fingers were pushing in and out of her pussy. As I watched in stunned wonder, liquid began pulsing out onto her bed as she started squirting with her orgasm. Holy shit, I thought as I hurriedly left the doorway and made my way to the bathroom. I quietly closed the door behind me and leaned against it, breathing hard. I caught my sister masturbating. Jesus. I finished urinating, washed my hands, and returned to my room. As I left the bathroom, I noticed her door was now closed.

As I lay in bed staring at the ceiling, I soon realized I couldn't fall asleep. I felt keyed up as I beat my pillow into a more comfortable shape, but nothing helped. Finally, after looking at my phone and seeing the time was almost 1 a.m., I kicked my covers off and turned on my bedside lamp. I slept in only my boxers, and they were tented around the shape of my rock-hard cock right now. I grabbed at my erection and sighed.

Maybe jerking off would help me fall asleep. I slid my boxers down over my hips and threw them on the floor, and grabbed my cock. I began absently stroking it as I reached into the drawer on my bedside table and took out a bottle of lotion. As I rubbed a generous supply of lotion on my cock I took a moment to appreciate it. Hard, it was about 7 inches in length and relatively thick. It was not huge by any means, but I liked it. I grabbed my phone off the charger on my bedside table and went to a regular porn site I used, and settled in, gripping my now throbbing cock in my fist.

My hips left my bed as I began sliding my fist up and down my slick shaft. My breathing came heavier as my balls contracted. I could feel my orgasm coming and began pumping my cock faster. I finally closed my eyes as a moan escaped my mouth. My mind wandered. My sister, in her room, pussy in the air with her fingers pumping in and out as she groaned and began squirting. My eyes shot open as ropes of cum started shooting from my cock. I stifled my moan and began pumping my fist faster as I felt cum shoot so high it hit my chin. I slumped into the bed as my orgasm abated and reached for a tissue to wipe the cum away. What the fuck was that? I asked myself. As my air conditioner kicked on, I rolled over in my bed and pulled the sheet over me in the heat of a July Chicago night.

It wasn't weird to have a sexual thought about your sister, I self-reasoned. I'm sure all guys have those.

'Do all guys shoot loads of cum thinking about their sister cumming?' Came a thought from the back of my mind. I grabbed my pillow and stuffed it over my face as I loudly groaned. UGH. I finally rolled over and tried to drift off to sleep.

The alarm on my cell phone woke me up. I lay there for a few seconds, staring up at the ceiling. I was replaying the events of last night in my mind. I eventually rationalized it by thinking that any guy my age would get worked up over seeing something so sexual. It didn't mean anything. With that moment thoroughly rationalized, I sighed, got up from my bed, and went into the hall to the bathroom. The door opened, and my sister came out. She was wearing a towel and still wet from her shower.

"Oh, you're up. Good. Get a shower so we can meet up with Mom. You know how she gets if we're late." She bumped her hip into me and smiled as she passed me. I rolled my eyes and swatted her with the shirt I was carrying, and she yelped and hurried into her room, the door shutting softly behind her. Ten minutes later, I exited the shower and went to the kitchen, where Marina ate some toast while scrolling on her phone. She wore a black tank top and faded black jeans stuffed into her usual Doc Martens. Her hair, long and raven black, was pulled up in a high ponytail today. We tended to dress the same--a lot of blacks and dark colors with the occasional splash of color on her part. A small blob of strawberry jam sat on the edge of her lip. I grinned and wiped it away from her face.

Ten minutes later, we began our trek to her car. She had decided we would take her car. She would drop me off here and head to her boyfriend Mike's house. A strange feeling came over me when she mentioned him, but I was too busy ensuring I had my keys and wallet to analyze it. The summer air slapped me in the face, causing my eyes to water. It felt like looking into an oven. As she turned to lock the door, I briefly toyed with the idea of going back into the apartment to put on shorts instead of jeans but decided against it as I hurried to the car. As she slid behind the wheel, her tank top pulled up a bit, revealing the skin of her hip. Without thinking, I reached out, grabbed her hip, and squeezed.

"Hey, you jerk. What was that for?" Marina pouted at me in mock sadness from the driver's seat. The moment I had gripped her hip, a strange look crossed her face for a split second. I peered over at her, then smiled.

"Who knows? Maybe you're just super pinchable." I said, and she swatted my shoulder before pulling out onto the street. About an hour later, we pulled into the parking lot in front of the restaurant our mother had picked for us to meet her at. Our parents had moved to Schaumberg a couple of years back from the city. Mom said it was due to Dad's commute to New York, but that didn't make sense as O'Hare was only about a ten-minute drive from where they lived in the city. Marina and I felt it was Mom's choice to leave Chicago. She had always been one to take crime statistics and police reports to heart. Looking over, I saw Mom's Mercedes parked nearby.

Our mother was a fine enough mother. She loved us, and we knew it, but she could be overbearing. She had flipped her lid at the thought of us moving out, especially when Marina also decided to move out. She settled down when she figured out we'd be moving in together. Marina pulled the rearview mirror down and ensured her hair and makeup were fine before exiting the car. She linked her arm with mine as we made our way in. The inside of the restaurant was nothing fancy--a typical Midwest sit-down family-style diner. As we waited on the hostess, my sister patted my arm, which she still held onto.

"I'm starving. All I had was toast. Are you going to eat?" She looked around the restaurant, trying to find our mother. I looked too to see if I could spot her, but I didn't see her anywhere.

"Table for two?" The hostess arrived and smiled at us both politely.

"We're here to meet someone. Tabitha Fellows?" The hostess smiled and nodded.

"I'll take you to her table. Follow me." As she led us to the table, she turned to look at us and smiled warmly.

"If you don't mind me saying, you're such a cute couple." I felt my cheeks go red and turned to see my sister with a broad smile looking at me. I quickly turned back around and saw her grin widen even more as I did so.

"Thank you," said my sister, "but we're siblings."

The hostess's face went pink as she let out a squeak. "I'm sorry, I didn't know. I--it's just that you're both so cute together. Ah! Ignore me!" she said as she hurried towards the table.

I looked over at my sister, who smiled up at me and led me by the arm to the table. As we sat, the hostess, still pink around the ears, inclined her head to us, laid menus on the table, and then returned to the hostess stand.

My sister followed the girl with her eyes and then turned to me.

"You were blushing." She said in a singsong voice.

I grabbed the menu and pulled it open to look at it, mainly to give me something to look at that wasn't her. She grabbed some of my hair, pushed it behind my ear, and patted my shoulder. Before too long, as I studied the menu and she hummed while scrolling on her phone, we heard footsteps and looked up to see our mother making her way over to us from the restroom.

"Hello, mother." Said Marina as she took her seat across from us.

"Hello, Marina. Sylas. How is school going? Last I heard, you were both doing well." I took a drink of water and gave a noncommittal grunt. My mother and sister chatted for some time. When our server brought us our food, I handed Marina her plate, and our fingers touched. My heart jolted suddenly, and I felt my face grow warm. What the fuck? I asked myself. An image of my sister reaching under the table and reaching down into my pants, then grabbing my... I shook my head and looked away.

Marina winked at me, and I looked down at my club sandwich and began eating. After a half hour or so of mainly my sister and mother chatting about this and that and classes and TV shows, we took our leave. I bent to get in as we returned to the car, but my phone fell out of my pocket. I bent down to get it and felt a hand grab my ass and squeeze hard. I quickly turned to see my sister hurrying to start the car.

I stared a hole into her head as she began to drive. She started humming with a slight smile on her lips.

"Can I help you, dear brother?" She asked in a tone that said, 'I'm innocent!' as she turned into traffic.

"Oh, no, nothing, Marina. Nothing at all." She looked at me, grinned, and looked back at the road. Reaching over, she handed me her phone.

"Find something to put on, please." I took her phone and went to Spotify. Soon, black metal was blaring in the car. She turned it down slightly and began tapping her fingers on the steering wheel. I kept looking at her as she drove, her concentration on the road before us. She had a very graceful side profile. We were twins, but not identical. Her face was thin and angular, with high cheekbones and full lips. She had a Greek nose that was slightly crooked from a nasty fall she took when we were children doing stunts on our bikes. Her eyelashes were naturally long, and her eyes were a deep, warm brown. We had identical eyes and noses, but where her face was angular, mine was more rounded with less pronounced cheekbones. Today, she had pulled her raven locks up in a tight bun with only her bangs hanging loose and swept aside from her eyes. Finally, after the third time I absently gazed at her, she spoke up.

"You see something over here you like?"

I jolted and grinned sheepishly.

"Just lost in thought."

She smiled but said nothing as the music played, and we drove on. Finally, roughly an hour later, we entered the city. As we parked in front of our apartment, she reached into the glove box and pulled out a clutch handbag. It looked brand new.

"I'm going to Mike's now. Can you put this in my room, please? Thanks-love-you." She said hurriedly. She waved as I closed the door, and she pulled away from the curb. I waved back as I dragged a chair into her parking spot and entered our apartment. I flipped the light on as I entered, put the mail I had grabbed into a neat pile on the side table, and then looked around. Marina was the decorator of the two of us, and her touch was evident all over our apartment. The leather couch I had picked out was draped with a soft pastel green blanket that Marina had picked. The coffee table was covered in coffee table art books-that was all Marina. The books ranged from art prints from the Great Artists to tasteful nude shots. I kicked off my boots and made my way to her room. Her room was at least 10 degrees cooler than the rest of the apartment. Marina was a creature of fans and air conditioners. As I flicked the light on, I was hit with her scent. On the surface was the smell of lilacs and honeysuckle and a scent just below the surface. A fresh, feminine smell. Her natural smell. I took a second to take it in, then went to her bed and lay the bag on her bedding. I paused to look around. Next to her bed was a small bedside table. Sitting on it was a small stuffed bear I had won for her the last time we went to the fair. She had named him Beary Bearson and said he was her favorite gift ever. I was skeptical, but she had kept it for the past 2 years, so who knew?

I was about to turn and leave when I noticed something purple on her end table beside the bear. Taking a closer look, I realized it was a vibrator. It looked like one of those small purple bullets and was nestled beside Beary. It was as if she had half-ass tried to hide it but left it there. I looked at it for a second, then turned to leave. That's when I noticed her laptop on her bed, the screen open but in sleep mode. I still don't know why I did it, but I touched the trackpad to turn the monitor on. It came to life and went to her desktop, a picture of the two of us at some concert. Curious now, I sat down on her bed. I clicked the tab at the bottom of her browser that was minimized. My eyes grew wide. It was a porn site. I put my hand on the lid to close it and turned my head.

What was I doing? This act was a violation of her privacy. Was I really going to creep through my sister's laptop? But I clicked the link on the video that was currently up. The video was a compilation of women squirting on each other. The woman on the video was currently rubbing her clit on the other woman's tongue and moaning loudly until she squirted all over the other woman's mouth as she rubbed her clit. I felt my cock stir in my pants. Feeling a little guilty, I unzipped my pants and pulled out my cock, and started idly stroking it as the next scene started. This one showed a woman squatting over another woman as she furiously rubbed her clit and began showering her cum onto the woman lying under her.

My cock was so hard that it ached as precum dripped from the head of my dick. Something about doing something I shouldn't be doing and at risk of being caught had me extremely turned on. I noticed a section to the left of the video marked previous and hovered the mouse over it as I started rubbing my cock faster. The video title made me widen my eyes. The video was titled sister seduces brother into giving her his cum. My orgasm hit me hard then, and I cupped my hand and shot my load into it, moaning loudly as my balls contracted as I shot my load. I got up and hobbled out to the bathroom, careful not to drop the cum in my hand, my cock swinging as it grew softer. I wiped my hands off and stared at myself in the mirror.

"What the fuck was that?" I asked no one in particular.

I hurriedly returned to Marina's room and cleaned up, attempting to return everything as it was when I entered. I then turned the light off and returned to my room to do some coding. Roughly three hours later, my phone vibrated. It was a text from Marina.

"Hey. I'm gonna spend the night over here. Can you bring me over a change of clothes, please?"

"Sure. I'll head over there now."

I covered my face with my hands and groaned. Guilt was eating away at me for masturbating in my twin sister's room. What the fuck was wrong with me? I groaned again, got up, and grabbed my jacket as I returned to my sister's room to grab her something to wear. I also packed her toothbrush, deodorant, and contact solution. I thought about it, then grabbed her shampoo and conditioner. I looked around the room as I hefted the bag on my shoulder, and my eyes fell on her laptop that had gone back to sleep. I groaned, turned the light off, and closed her door again.