sexstories.com

Introduction:

Matthew can’t wait for his big sister to return from college for the summer. He never could have imagined how much fun they would have on the ride home.

I woke up to a pounding on my door. “Wake up Matty”, my mother yelled out. “We’re leaving in 10 minutes, and if you’re not ready there’s going to be hell to pay.” An empty threat that I knew my pushover mom would never follow through on. None the less, I really did need to get out of bed. My dad wouldn’t be quite so forgiving if I didn’t.

It was a warm, sticky, summer morning. The sun was peeking in through my blinds, as if to remind me that I had slept in much too late. It was the first Saturday of summer vacation after finishing my junior year of high school. A glorious day that should have been rewarded by sleeping in late, relaxing in the comfort of my bed, and maybe even stroking my rock-hard teenage morning wood that was pitching a tent in my sheets.

Unfortunately, there was no time for that. My big sister, Alex, had just finished up her freshman year of college. Of course, the burden of moving all of her belongings out of her dorm room, and back into our house for the summer had fallen on my parents and I, which was the reasoning for the rude awakening distributed by my mother.

I threw off my sheets and stood out of bed. After a nice, long, morning stretch, I looked down at my still erect cock, as if to say, I’ll take care of you later. Wasting no time, I quickly put on an outfit made up of gym shorts and a tank top. My shoulders and biceps had benefited from all of the football workouts throughout the off-season, and I secretly hoped some of the girls at Alex’s school would notice me while I helped move her out.

I hadn’t seen my sister since she came home for Christmas break, and even though I would never admit it, I was excited to have her back home for the Summer.

Throughout our childhood, Alex and I had always been close. Even though there were endless arguments, and your typical brother-sister fights, at the end of the day I always knew that Alex had my back, and she knew I had her’s.

Alex had shocked both my parents and I when she broke the news that she would be going to college in Minnesota, many hours away from our home state of Michigan. With her good grades, community service, and knack for writing amazing admission essays, she could have had her pick of schools, but I had always thought she would stay close to home. I had never realized how much I truly cared for my sister, until my parents and I unloaded her into her college dorm room and waved goodbye as she began her freshman year. So, I promised myself that I would appreciate the months that I had with her home over the summer, and even try not to complain about that fact that my first Saturday of summer vacation would be spent moving her out of her dorm room and back into our house.

Now fully dressed, and my still hard penis pumped full of teenage hormones tucked securely behind the elastic waistband of my shorts, I opened my bedroom door and bounced down the stairs. My mom and dad were already waiting for me in the car, eager to get on the road and start our drive to Minnesota.

I opened the door to our spacious SUV, and slid into the back seat. Even though it was an enormous car, I knew we would need every inch of it to fit all of my sister's belongings. Although she was what some people might describe as a minimalist, Alex had quite the collection of textbooks, journals, and other school supplies when we moved her in at the start of her first semester, and I could only imagine what she had accumulated over the course of her freshman year.

The trip to Minnesota was long, quite, and predictably uneventful. My parents engaged in chit-chat, discussing their summer plans, and excitement to see Alex and have her home. I spent most of the trip looking out the window and daydreaming about all the fun that summer months would bring. Freedom of homework and tests, cute girls in bikinis at the swimming hole, sneaking beers from my dad’s mini-fridge, and maybe even losing my virginity to my girlfriend.

Finally, after what felt like an eternity, we arrived at the campus and pulled into the parking lot to my sister's dorm. Standing at the side of the building, with a huge smile on her face, and arms full of the fist load of her belongings, was Alex.

I couldn’t help but notice how stunning she looked in the late afternoon sunlight. Her light blue eyes were wide with excitement, and her straight blonde hair waved freely with the summer breeze. She had clearly managed to pull herself away from the library, where I guessed she had spent a large portion of her time during her first year, and enjoyed some of the nice summer weather, as her long, toned legs and freckled face shone with a glowing tan.

She waved at us as we pulled into a spot, clearly just as happy to see us, as we were to see her, and shouted out, “you made it!”

As soon as I stepped out of the car I felt two arms wrap around me, and my sister's warm body squeeze into mine, as she gave me a long-awaited, welcome back hug. We held each other for a moment, just long enough to let each other know we were happy to see one another.

As we broke off the hug, Alex put her hand on the top of my head, ruffled up my hair and whispered, “I missed you, Matthew.”

She was the only person that ever called me by my full name. To everyone else I was Matt or Matty, and I hated when anyone else called me by my full name. Anyone except for Alex. My parents called me Matthew when I was in trouble. My friends called me Matthew when they wanted to annoy me. But when Alex called me Matthew, it was like she was saying, I know who you are, the real you, and I’ll always be here for you.

“I missed you too”, I responded. We held each other's gaze for another moment, and then she looked over to my parents and back to me and said, “well, let's get started”.

The next several hours were spent by the four of us hiking up the stairs to Alex’s dorm room, gathering as many of her belongings into our arms as we could, and hauling it down to the car. Alex worked at an amazing pace, never stopping to catch her breath or take a break. She was in just as good of shape as I was, which was incredible considering I had been working out every day to stay in shape for the upcoming football season.

Before long, it turned into a competition between Alex and I who could carry down more items in one trip. I shamelessly watched her tight round ass bounce up the stairs after each trip. It was technically her fault, after all, that I didn’t have a chance to get a jerk off session this morning, and why I was so enticed by her nicely sculpted figure.

I had never really thought of my sister in a sexual way, but I would have to be blind to not notice how stunning she was. Playing soccer and running track throughout high school had kept her body in great shape, and she had a natural glowing beauty that required no makeup to attract attention. She could have had her pick of the boys at our high school, but Alex’s focus had always been targeted on school work and sports. I wondered to myself if that had changed since moving away for college, and what type of adventures she had had in her first year.

By the time we had loaded everything into the car, Alex and I were glistening with sweat and the once spacious vehicle was now full to the brim, leaving only one spot open in the third row of seating.

“Well, looks like we’ll have to leave you behind”, I joked to Alex. “Yeah right”, she shot back, “Mom and Dad love me way more than you, we’ll leave you here.” She flicked me as she said it, and I flicked her right. We started to play fight before our dad broke us up and said, “alright that’s enough. At this rate we won’t be home until midnight. You too will have to lap up. It’ll be uncomfortable, but you’ll survive.”

Alex and I looked at each other, coming to the realization that it was our only option. “Fine”, Alex playfully responded, rolling her eyes. “I guess I can sit on the stinky little twerp.”

My mom and dad got into the car, and I crawled into the remaining back seat that Alex and I would have to share. Alex jogged back towards the dorm, yelling be behind her, “I have to go say bye to one of my friends. I’ll be right back.”

After waiting for several minutes in the car, my father started to get impatient. He looked back at me and grumbled, “go see what’s taking your sister so long”.

Reluctantly, I worked my way back out of the car and headed towards the dorm. After looking around some of the hallways for Alex, I heard her voice coming from one of the rooms. Just as I was about to reach the doorway of the room she was in, I realized she was talking to a boy.

I stopped short of the room, not wanting to interrupt, but also curious to hear the context of the conversation. “I’ll really miss you this summer, Jake. Maybe I can even talk my parents into getting the car for a weekend to come visit you”, I heard my sisters say. “I’ll miss you too, Alex. I’ll be thinking about this beautiful face of yours every time I close my eyes”, the boy responded.

I was caught off guard to hear someone talk about my sister that way. Apparently, Alex had allowed her interests to included the opposite sex during her freshman year.

Then I heard the undeniable sound of smooching lips. Unable to contain my curiosity, I peered my head around the doorway. There she was, my sister Alex, making out with her “friend” Jake. As I watched their tongues collide, and slip into one another's mouths, I couldn’t help but wonder what it might feel like to have Alex’s tongue touch mine. To feel her mouth press up against mine, and hear her moan quietly, as she softly bites my lower lip, just before pulling her mouth away.

I felt blood rush to my quickly hardening cock, which was now noticeably bulging out of my shorts. A wave of emotions washed over me. Curiosity, of what those soft lips would taste like. Envy, that Jake got to know, but not me. Embarrassment, that these thoughts were directed towards my sister. But most of all, desire. Desire, to feel someone that I love so much, someone so beautiful and kind, show that they love me too.

And as my sister quietly whispered, “I love you, Jake”, I couldn’t help but imagine that instead, she had whispered, “I love you, Matthew.”

The two of them held each other for a few more moments. I told myself that it was the fear of my fathers annoyment and anger, but deep down I knew it was my jealousy of Jake that caused me to clear my throat, and step into the doorway.

Surprised to see me, and slightly embarrassed, my sister quickly blushed and broke off the hug with Jake.

“Hey, umm, Dad’s getting pretty antsy so we should probably get out of here”, I awkwardly spoke to my sister, trying to avoid eye contact with the boy who I now knew to be Jake.

“Oh, sure, sorry”, she responded. Alex turned back to Jake and softly said, “see you soon”, and quickly walked out of the room.

As Alex and I made our way back to the car she turned to me and said, “just don’t tell Mom and Dad, okay?”

“Yeah, okay. You better come up with a good story of why you need the car for the weekend though”, I joked to her. “Otherwise Dad will never let you have it”.

Alex winked at me and said, “good call Mathew.”

The sun went down leaving a pink glow behind us as we set off for the journey home. Alex and I had somewhat awkwardly tried several different positions with her sitting on my lap, trying to find the most comfortable one. Finally, we got settled as she straddled my legs and I wrapped my arms around her body, for lack of a better place to put them.

With Alex’s belongings packed from floor to roof, my parents could just barely see the tops of our heads poking up. As we got onto the highway, my mom turned around and asked, “you guys okay back there?” “Yeah, we’ll survive”, I responded.

Alex and I had always been pretty close growing up, and weren't too uncomfortable with one another's body. We always shared beds when going on vacations or staying in hotels, so having Alex sit on my lap wasn’t the end of the world, and after seeing her this afternoon, I secretly enjoyed having her warm body against mine, just a little bit.

To help pass the time, Alex and I talked about our plans for the upcoming summer, and filled each other in on what we had missed during her time at college. I tried to nonchalantly ask her about Jake and get some information about how serious their relationship was. She didn’t give away much, but said that they had met pretty recently and things had just picked up towards the end of the year.

I wanted to ask her how far they had gone physically, but couldn’t work up the nerve. Alex and I were always very open with each other, and growing up we had frequently asked questions about the opposite sex. For some reason though, it felt that it would be inappropriate to ask Alex about her sex life, and I didn’t want to make things awkward with us trapped on top of each other.

About an hour into the car ride, we hit construction. The road went down to one lane on a temporary road, which was rough and bumpy. The car vibrated and bounced as we crept along the slow stretch of traffic. My dad audibly huffed in annoyance, and turned on the radio.

As the car bounced up and down, so did Alex. Her perfectly shaped butt unintentionally grinded into my crotch. With her wearing a sundress, and me wearing a thin pair of shorts, there was very little separating our bodies from one another.

I held onto Alex a little tighter, trying to keep her from bouncing so much, as I was quickly getting aroused, but it only made our bodies bounce together in unison. I silently prayed that the construction zone would end soon, as the feeling of Alex’s body grinding into mine was making it increasingly more difficult not to stir sexual thoughts in my mind.

Unfortunately, my prayers were not answered, and a few moments later the road became dramatically more rugged, causing the car to vibrate even more vigorously.

Alex’s body shook in my lap, and her crotch grinded into mine. Then, all of a sudden, I heard an unmistakable moan escape from her lips.

She instantly put her hand up to her mouth, trying to muffle the sound, clearly embarrassed by the unintentional noise that had escaped. Over the loud music and noisy road, neither of my parents had heard her, but I had. My sister's face turned beat red as she looked back at me and whispered, “sorry.”

We made eye contact, and lost for words I silently shook my head to tell her that she didn’t need to apologize. But her moan had instantly sent a thousand images into my head. The sexual feelings that I had been trying so hard to avoid, were now taking over.

Despite my best efforts to shift my mind elsewhere, in my head, I saw my sister. She was on my lap, exactly as she was at this very moment. Her skin was bare, not a thread of clothing on her. Her body bounced, slowly. Her firm, perky breasts swayed with her, ever so slightly, as if in slow motion. Her thumb and index fingers came together to gently pinch each of her round, aroused nipples, slowly twisting back and forth. And as the sensations become too strong for her to contain, she opens her mouth, and moans “Matthew.”

It was just my imagination, but it was the most erotic image I had ever created. And then I felt it. All at once, every last drop of blood in my body rushed to the same place, as if in a race to get there. My penis swelled, more engorged than it had ever been before. And pointed directly upward, landing perfectly between my sisters legs.

Now it was my turn for embarrassment . My cheeks grew hot, and I opened my eyes to see my sister looking back at me. I had expected her look to be one of anger, or disgust. But it wasn’t. It was something else, that I couldn’t quite figure out.

Before I could study her face any longer, I quickly whispered back to her, “sorry.”

She met my gaze with the same look I had given her when she let out her moan, as if to say, don’t worry about it. We both knew we couldn’t control the situation we were in, as the car continued down the bumpy road, with no end in sight.

Alex kept her mouth covered with one hand to try to prevent any more noises from escaping. My rock hard erection was now sliding directly between Alex’s legs with each bump of the car, and I could feel her warmth spreading into my body. The car continued to shake, and I could feel Alex’s legs shaking just as hard. The vibrations of the car, along with my dick sliding against her crotch were a combination that made it impossible for her to contain her arousal.

Now, I could feel a different sensation against my cock. An undeniable dampness was spreading from between Alex’s legs, through my shorts. I couldn’t believe what was happening. My sister's pussy was dripping wet, soaking into my cock,

The situation had presented itself so quickly, that there was no time to over-analyze what was happening.

Yelling over the loud music of the car, my mother called back from the front seat, “sorry about the construction, hopefully we’ll be through it soon.” Luckily, she didn’t turn around as she said it, otherwise she would have seen my sister's face, with her hand covering her mouth, trying to hide an expression that I could only imagine to be a look of pure ecstasy.

Alex must have realized it too, because in one quick motion, she pressed her arms into the seat to lift up her body, just long enough to spin around so that her legs were now straddling mine, with our bodies facing each other, so that the only thing my parents could see was the back of her head.

As she did this, her skirt lifted up and rested on either side of legs, making her soaking wet underwear and my thin shorts the only thing separating our naked bodies.

My cock was now pressed up against my stomach, and with each bump, I could feel Alex’s pussy slide along the length of it as her hips gyrated uncontrollably into mine.

The warmth and wetness between our bodies grew with each touch. Alex kept her mouth covered, but I could still make out her soft moans as her body started to tremble.

Our eyes met for the first time, and we exchanged a look that spoke a thousand words. We both knew what was happening. We both knew that there was no getting out of this situation, whether we wanted to or not. But what I could have never predicted, was what was about to happen next.

Alex leaned in close to me, so that her lips were only inches from my ear. And as her entire body continued to tremble, she whispered the most beautiful words I have ever heard. “Mathew, I need you.”

She leaned back and stared into my eyes as our bodies collided with each bump of the road. I was utterly lost for words. So instead, without taking a moment to overthink, I let my body respond, and gave her a slow nod of my head in approval.

We both knew what was about to happen. And now, we both knew we wanted it to.

Alex ever so slightly lifted up her body, and used her hands to free my throbbing penis from the waistband of my shorts.

She looked down and her mouth opened ever so slightly, as she moaned in approval at the sight of my thick cock, with precum glistening around the tip.

With her body still hovering over mine, she looked back at me and gave me a nod, silently telling me what to do next. I grabbed her waist on each side, and felt the thin band of her panties. Gently, I grabbed them, and slowly slid my hands down until they were down around her ankles.

I looked down at my sisters body, studying every inch of it in a way I never had before. She was beautiful. Breathtaking. And as I ran my hands along her flawless, soft legs, I could now see her soaking wet pussy, dripped warm juices, just inches away from my penis.

There was a small patch of blonde hair just above her clit, which was swollen with excitement and anticipation. She had perfectly symmetrical puffy pink lips, glistening with wetness.

Somehow, I managed to tear my gaze away, and I looked back up into Alex’s soft blue eyes. We held each other's gaze, sharing a look that neither of us had ever shared before. A look, of pure desire.

Slowly, Alex moved her face towards mine, while at the same time lowering down her hips. After what felt like the longest moment of anticipation in my life, her lips were so close to mine that I could feel the heat of her breath. I was so focused on her mouth, that I had almost forgotten about the rest of her body.

Then, we touched.

Simultaneously, she pressed her mouth against mine while also lowering down her hips to place her warm, soaked pussy right at the head of my cock.

We stayed there for a moment. Our lips parted, and we shared a kiss of pure lust. Our tongues intertwined, and just when I thought the sensation in my body couldn’t get any more intense, I felt Alex slide down the entire length of my shaft, grabbing the back of my head to push her lips harder into mine, as she lowered.

Then, I was inside her. Inside my incredibly, irresistible sister, Alex. I could feel her pussy clench tightly around my cock, and drip down onto my balls. We were going to make a mess.

She moved her face away from mine, grabbed my hand, and used it to cover her mouth. The car continued to shake as we traveled down the road. Our parents, and other families in their cars just feet away from us, but completely oblivious to what was happening in the back of ours.

Alex began to lift up her hips, letting my cock slide almost all the way out of her, and then lowered back down until her lips splashed against the puddle of her juices that were now flowing down my legs.

She moaned into my hand with each bounce of her body, and each shake of the car. The vehicle shook so violently that neither of us even needed to move and yet my cock was still hammering in and out of my sisters tight pussy, our hips grinding into each other with each bounce.

Thank goodness my dad had turned on the radio, otherwise he and my mom would have easily heard my sisters pussy squelching against my body.

Alex’s legs were shaking uncontrollably, and I could feel her wet, puffy lips start to tighten around my cock. She leaned close to my ear again, while still grinding her body into mine, and while trying to control her voice, which was shaking with pleasure, she whispered, “somethings going to happen.”

She leaned back, and I slowly nodded again in approval, not knowing what to prepare for. At this point, her pussy was completely clenched around my dick. I could feel my balls start to tighten. Her moans were close to sending me over the edge, but I was trying to hold onto my orgasm for as long as I could, wanting to give my sister the release she needed.

Alex grabbed both of my hands and put them over her mouth, clasping hers over mine, trying to conceal the screams of pleasure escaping from her lips.

Her legs began to shake. She slammed my dick into the back of her pussy with amazing force, and then, her pussy erupted. Warm juices gushed from her lips and splashed between us. Alex screamed into my hands, her orgasm taking complete control of her body.

The sensation of Alex’s squirting pussy sent me over the edge, and I felt myself explode hot ropes of cum, deep into my sisters pussy. Spurt after spurt shot out, as Alex’s continued to gush onto my dick.

Our bodies trembled together, as we let our orgasms roll through us.

Finally, Alex collapsed into my arms, and I held her tight. We stayed like that for several minutes, my cock still deep inside of her, as we came down from the bliss of our orgasm.

Alex slowly lifted her body off of mine, as our juices continued to drip out. She let my cock slip out of her, and sat back down into my lap. Leaning into me, she kissed my lips, gently, and whispered, “I love you, Matthew.”

“I love you too”, I whispered back. And as if on cue, we felt the car stop to shake, as we exited the construction zone, and glided smoothly back towards home for what was sure to be an eventful summer.

Hope you enjoyed the story! It's my first one, so tell me what you thought.

I think there could be plenty more adventures with Matthew and Alex...

---