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How I Became My Stepbrothers Slut 1

How I Became My Stepbrothers Slut 1

by moon_and_stars
19 min read
4.83 (47400 views)
adultfiction
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Hello, Gals and Guys, it has been a while. I've been working on this story for about a year and a half. Sorry for the length, but there was no way to split it into chapters without ruining the flow of the story. I always welcome constructive criticism, but if you're going to criticize me anonymously without any insight, your comments will not be appreciated. Thank you to Kabirsawher for reviewing it.

I hope you enjoy it!

How I Became My Stepbrothers' Slut

Hi, my name is Maddy Mayes, and I just turned eighteen last week. My dad raised me by himself from the age of seven until I was twelve. My biological mom left us three days before my seventh birthday. Dad told me she was unfaithful for most of their marriage. I guess she needed more than he could give her, so she split and left a note. My dad is awesome. I have no complaints about how he raised me; we share a fantastic father-daughter bond. Around my eleventh birthday, he met a woman named Elaine. They hit it off immediately, and I didn't mind that he was dating. Elaine has always been good to me, and I think of her as my mom. I even call her that since she loves me as if I were her own. Elaine had twin sons from a previous marriage, which also fell apart due to infidelity. It was a common experience that brought Dad and Elaine together.

Her sons, Kyle and Kenny, were a year older than me, but our birthdays were only a day apart. They are tall and both were athletes in high school. They're identical twins, but the differences in their personalities made it easy for me to tell them apart. We initially got along, but eventually, the boys grew resentful of all the attention I received from their mother. Kids can be cruel at times, and they relentlessly picked on me. I was a bit of a tomboy growing up and was considered a nerd by most. My hair was frizzy, I wore glasses, and I had braces. I love Harry Potter, science fiction, and I maintained straight A's in school.

Eventually, my body and looks began to develop. Once my breasts started growing, I thought they would never stop. It seemed like every couple of weeks, Mom took me shopping for new bras. She also encouraged me to dress more like a girl. Slowly, I relented. By the time of my eighteenth birthday, I wore a 36C bra. I styled my dirty blond hair with a slight twist that hung to the middle of my back and used contacts now and again. In my mind, I was still the unattractive nerdy girl, but my outward appearance made boys notice me, especially my two stepbrothers. Little did I know that the two boys who had tormented me most of my life were about to make me their slut. It all started innocently three days after our combined birthday celebration when I turned eighteen and they were nineteen.

We aren't wealthy, and our modest house has only three bedrooms. Kyle and Kenny shared a room in an upstairs loft that was twice the size of mine, but they still had to share. I was sound asleep in my tiny bedroom when something startled me awake. I touched my face and found it wet. As my eyes slowly opened, a drop of water landed on my forehead. Still dazed from sleep, I looked up just as another droplet struck my nose. I got out of bed just in time when the ceiling burst open. A deluge of drywall and water crashed down onto my bed.

"Daddy!" I screamed. The water continued to flow from the ceiling, flooding my bedroom. "Daddy!"

Dad burst into my room, looking at the carnage. I stood off to the side, shivering. My tank top and panties were soaked, making them see-through.

He hugged me. "Are you alright, sweetheart?"

I nodded. "I'm fine, Daddy. What happened?"

"Looks like a pipe burst. You're shivering. Grab whatever dry clothes you can. I need to shut the water off." He ran out of the room, heading for the basement.

Elaine dashed into my room, helping me grab whatever I could. Finally, Kyle and Kenny showed up. First, the water pouring out of the ceiling fascinated them, and then they noticed me. Their mouths hung open while they stared. My sleeping clothes were completely soaked, making my breasts and vagina visible. The thin tank top became transparent, showing my large boobs and areolas, and because I was freezing, my nipples were harder than rocks poking against the clinging material. My panties clung to each butt cheek, and as I continually bent over to grab whatever I could, they sucked up into the crack of my ass.

"Hey, you two," their mother barked. "Stop gawking at your sister, and help grab Maddy's clothes before they get soaked." This sent the twins scurrying.

Elaine handed me a dry sweatshirt and pants. "Sorry, sweetheart. Boys will be boys."

An hour later, we salvaged what we could from my destroyed bedroom.

I stood looking at the mess, tears streaming down my face. My dad wrapped his arm around me. I buried my face in his chest, sobbing.

"It will be alright, Maddy. I promise."

"Where am I going to sleep?" I said through heavy sobs.

My Dad's hand rubbed up and down my arm and shoulder, trying to comfort me. "We'll figure something out."

-------------------------

The following day, we held a family meeting. Dad and Elaine explained what the situation would be until they could repair my bedroom, which might take several months.

"Are you serious?" I blurted out when they finished.

"It's the only solution, sweetheart. I know it's not ideal, but we don't have extra room around here," he said about his plan.

Mom placed her hand on my arm. "Besides, Maddy. Kyle and Kenny have already rearranged their room to make space for you."

"I'll hang up a sheet for privacy. Everything will be just fine," Dad added.

I frowned as I looked at my stepbrothers. They were looking at me differently than before. In fact, since last night, I noticed them constantly staring at me, their eyes roaming up and down my body.

I instinctively crossed my arms over my sweatshirt-covered breasts, feeling as though they had X-Ray vision and were ogling my boobs. "I guess it will be fine," I said reluctantly.

We moved most of my stuff into my stepbrother's room. Dad did as he promised, hanging a large sheet from wall to wall and ceiling to floor. He made a slit in the middle so that I could access the door. If I thought my bedroom was tiny before, this felt like living in a closet. There was barely enough room for a bed, my desk, and one dresser. It sucked!

I got ready for bed that night. Taking off my clothes while my stepbrothers were only a few feet away felt strange. A thin bed sheet was the only thing separating us. I put on my usual tank top and cotton panties before crawling into bed. Hiking the covers up to my chin, I turned off the light.

"Good night, Maddy." The twins sang in unison like they were in some TV sitcom.

This was going to be weird, I thought. "Good night, Kyle and Kenny."

Surprisingly, I slept well, but when I woke up, something strange had happened during the night. Usually, in the morning, the covers are wrapped around me. However, I shed them this morning, and only my feet were covered. I didn't think much of it. Maybe I got hot during the night in this new room?

I went to school and felt grateful to return to something normal. I loved school and stayed after my last class to use the library and have a quiet place to study. When I got home, everything seemed pretty normal until it was time for bed. I still had a strange feeling of being exposed while I changed, and everything else unfolded just like the previous night, including the twins saying goodnight.

When I woke up the following day, the covers were again at my feet, but this time, my tank top was hiked up, barely covering my breasts. It felt strange because my skin was quite cold; why would I shed everything while I slept? This continued to happen throughout the entire week.

It was Friday night, and I sat cross-legged on my bed, reading The Lord of the Rings. I wore my usual tank top and panties, but since I wasn't going to sleep for a while, I added a long sweatshirt. Adjusting my glasses, I turned the page, remembering how sexy Aragorn was in the film.

The bedroom door burst open as Kyle and Kenny entered, returning from their friend's house; boys are so loud. They laughed, talking at the top of their lungs.

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"Can you guys keep it down? I'm trying to read." I yelled through the curtain.

Suddenly, the sheets that separated the room parted, and both entered my small space.

"Whatca doing, nerd?" Kyle mocked.

Kenny walked over, grabbing the book from my hands. "Lord of the Rings? God, you're such a geek."

I reached out, trying to get my book back. "Hey, give me that back."

Kenny held it high over his head. "Come get it."

I stood on my bed trying to get it back, but Kenny was tall, and I was not. I kept leaping up as much as I could, not realizing that my sweatshirt kept riding up, exposing my panties.

Finally, I gave up. "Please, Kenny, can you give me my book back?" I asked nicely. That's when I noticed them staring at me, but they weren't making eye contact.

"What are you guys looking at? Can you please give me my book?"

Both of them licked their lips, continuing to stare. I looked down to where their eyes were fixed, finally noticing that my panties were exposed. I grabbed my top quickly, pulling it down.

"You two are such perverts."

My brothers exchanged glances and shrugged. "Show's over," Kyle remarked. Kenny flung my book onto the bed, and the twins returned to their side of the room.

I tried to go back to reading, but several thoughts prevented me from focusing. First, I was angry that they barged into my space, interrupting my alone time. Then, I remembered how they had been staring at me for the past week, especially when various parts of my body were exposed. I've never received any attention from boys. I kissed a few guys occasionally but never had a date or a boyfriend. Kenny and Kyle's leering stares left me confused.

While contemplating my feelings, I heard a moaning sound from the twins' side. It was quite loud. Approaching the curtain, I pressed my ear against the sheet. Yes, it was indeed a woman moaning and cursing. Slowly, I pulled the sheet apart and peered into their room.

My eyes widened at the sight, and my hand clamped over my mouth, preventing me from gasping. I jerked back, closing the sheet quickly. "What the heck?" I whispered to myself. Once more, I opened the curtain even more slowly than before, ensuring that I would remain unseen.

The brothers had pushed their beds together and lay utterly naked. Their hands stroked their penises while they stared at a laptop sitting between them. The moaning sounds broadcasted from the computer. I watched their hands slide up and down their raging hard-ons. I had never seen a penis before, except in anatomy class, never mind two of them. They looked bigger than the pictures from class.

"You're going to lose again," Kyle told his brother.

Kenny closed his eyes while he continued jerking off. "No, I'm not," he said through gritted teeth.

Kyle smiled. "You have to watch the video; otherwise, it's cheating. Man, look at those tits."

Kenny's eyes popped open, staring at the screen. "Oh shit! Fuck!" he cried. A few seconds later, he erupted. A thick stream of semen shot into the air, landing on his stomach. He kept pumping his slick reddish dick as two more ropes flew out.

Kyle laughed. "I knew it."

I gasped when Kenny spewed all over his stomach, loud enough to be heard.

The twin's eyes shot toward the curtain, with my face sticking through it.

Kyle kept stroking himself. "Well, well, look who's the pervert now."

Since I was discovered, I decided the best defense was an aggressive offense. I stepped through the curtain, approaching my nude stepbrothers. "What are you two doing?"

Kyle looked me up and down while he masturbated. "What does it look like we're doing?"

I couldn't stop watching him stroke his engorged penis. "I mean, why are you two jerking off lying next to each other?"

Kenny wiped the cum from his stomach with some tissues. "We do it all the time. We made it into a game to see who can hold out the longest."

Kyle snorted. "Yeah, except I usually win. Wait, this is my favorite part," he said, turning his attention to the laptop. His hand furiously flew up and down his wide dick. "Aaaahhh," his hips bucked upward, followed by a massive rope of semen shooting into the air and landing on his thigh. He finished off with three more squirts. "Whew, that felt great."

My mouth hung open, watching Kyle ejaculate. Until a minute ago, I had never seen anything like it. Then, I noticed I felt strange. My vagina tingled and felt wetter than usual. I never really masturbated before. I think. Once, after a night where I slow danced and kissed a boy for an hour, I rubbed myself on a pillow when I got home. Something strange happened to me, where my vagina became soaked, and my body tensed. But I didn't know what happened. My best friend, Clarice, told me I made myself orgasm, but I didn't believe her.

I licked my lips. "How...how... often do you guys do this?" I stammered.

Kyle dapped his thigh and stomach with tissues. "Every night. By my account, we're tied three to three this week, Kenny. Looks like you're finally getting some control." He said, laughing.

Kenny pulled the covers over his body. "Yeah, yeah. We'll see who wins tomorrow." He looked at me. "Do you need something nerd?"

My eyes darted back and forth between my stepbrothers. "Um, no."

"What's the matter? Haven't you ever seen a dick before?" Kyle inquired.

I nervously rubbed my hands together, staring at the floor and avoiding eye contact.

Kenny laughed. "Kyle, I think our little sister has never seen a real cock."

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Kyle sat up. "Is that true, Maddy?"

I nodded slowly.

"Huh, interesting," Kyle said, pulling the bed sheet over himself. "Well, good night."

Kenny reached over and turned off the light, leaving me in the dark in the middle of their room. A sliver of light shone through the curtain, allowing me to see partially.

"Good night," I said meekly before returning to my space. I swiftly got into bed and stared at the ceiling. My mind was filled with images of Kyle and Kenny stroking their dicks, and shooting semen everywhere. My breathing became heavy as my vagina itched and moistened. I slid my hand under my panties, tentatively rubbing it up and down my soaked slit. God, it felt so good. I didn't know what I was doing, but rubbing my hand up and down felt amazing. I used my other hand to lift my tank top over my breasts. I grabbed my aching nipple, tweaking it while I continued rubbing myself. My eyes closed at the overwhelming pleasure.

"Oooohhh, oh God," I moaned. "It feels so good." My hand instinctively picked up speed on my overheated vagina. I continued pleasing myself, making my body writhe on my bed.

I thought I heard a sound, and my eyes popped open while my hands froze in place. The curtain swayed slightly, but no one was there, so I returned to what I was doing.

In a few minutes, my body began to shake from the stimulation. My back arched off the bed while my legs trembled. Images of Kyle and Kenny stroking their dicks remained in my thoughts. "Aaaaahhh, oh my God," I moaned as softly as I could. Then, my orgasm crashed over me. I grabbed a pillow, placing it over my face while I loudly moaned.

When it was over, a smile spread across my lips. I felt relaxed and peaceful. Moments later, I drifted off to sleep.

The next morning, I slowly opened my eyes. Again, I was not covered, and neither were my breasts or vagina. My panties were around my upper thighs, and my tank top was at my neck. Luckily, no one entered my room to see me in this state. I figured after masturbating, I must have fallen asleep like this.

-----------------------

Since it was Saturday, I spent the day with my best friend, Clarice. She's like me, a lover of all things nerdy. We've been friends since grade school and tell each other everything. She developed a little earlier than I did, but in different ways. I got the big breasts, while she has a big butt. Her deep mocha-colored skin, stylish curly afro, and large ass made the boys more interested in her than in me at first. But when my breasts continued to grow, the attention became evenly split. We were both timid and had done nothing but kiss a few boys.

We lay on her bed watching the Chronicles of Narnia, eating popcorn.

"Clarice, have you ever seen a boy's...you know...thing?"

Clarice's brow scrunched. "Thing? You mean penis?"

I giggled, feeling a bit embarrassed that I couldn't even say the technical name. "Yes. Have you ever seen a boy's penis?"

Clarice shook her head. "No. Why are you asking me that? Have you?"

I took a deep breath, telling her about last night.

"You're kidding? You watched your brothers jerk off!"

My face felt flush, and my thoughts immediately went back to the images of Kyle and Kenny stroking their dicks. "Yeah. It was a little exciting."

"Damn, girl. I would love to watch your brother Kyle jerk off."

"Why Kyle? They're twins. Why not Kenny?"

"I mean, I wouldn't mind seeing Kenny do it too. But there's something about Kyle. If he asked me out, I would say yes in a minute."

I had to admit that Clarice was right. Even though they were identical twins, their personalities differed. Kenny could sometimes be immature, while Kyle's aura was captivating.

I went home around dinnertime. Tonight was pizza night, and we had a lovely family dinner. The boys still looked at me strangely, but at least they were kind to me. Mom and Dad explained how the repair situation was progressing, and it wasn't the best news. We would need to wait for the insurance company to finish their assessment and then wait even longer for the check to arrive before anything could be done. So, in other words, I would be sharing the twins' bedroom for a long time.

I went upstairs after we watched a movie so I could change into my sleeping clothes while the room was empty. I wore my usual tank top and, for now, had pajama bottoms on since I wasn't going to sleep for a while. I arranged my pillows so I could read in bed. I had just opened my book when Kyle and Kenney entered their side of the room.

It was easy to hear what was happening since they had no idea how loud they talked. I sighed at the annoyance, trying to concentrate on my new book.

"I'm totally going to win this week," Kenny boasted.

Kyle laughed, "Yeah, yeah. You say that every week. Remember, if you lose- and you will- you have to do my chores."

"The only person who will be doing anyone's chores is you. Now queue up our favorite video."

A minute later, I could hear the same woman moaning, just like last night. I softly closed my book and crept towards the curtain. Peeling the opening back, I looked in. Again, Kyle and Kenny were lying on their beds, completely nude, stroking their dicks. Except this time, they anticipated I would be spying on them.

Kyle stopped stroking himself and reached for the laptop to pause the video. He then looked up, staring directly at me. "You know, Maddy, if you want to watch, all you have to do is ask."

I nervously gulped before entering their room. The brothers stared at me with their hands wrapped around their hard-ons.

"You don't mind?" I asked meekly, unable to tear my eyes away from their impressive manhoods.

Kyle shook his head. "No, I don't mind. Do you mind, Kenny?"

"No, not at all. Why don't you sit on the edge of the bed, Maddy, and get a better look."

I breathed deeply. "Um, okay." I mindlessly moved across the room and knelt on their beds, straddling the seam between them. Their dicks seemed much larger now that I was closer. I noticed the twins glance at each other and smile.

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