I was sixteen when my adopted dad died, it happened so suddenly and our family was never quite the same. My "sister", named Sarah, was fifteen at the time and we had grown close over the 10 years I had been with the Smiths. I don't remember my real parents, I was taken off them when I was young and passed around until I settle with the Smiths. They were awesome. Treated me like there own and loved me. I never held a grudge against them for not being my real parents.
After the passing of our dad Sarah and I grew so much closer. Mum had to take up more hours at work to help make ends meet so a lot of the time; it was just the two of us. Dad was like a rock to Sarah, he was always there for her, to comfort her and make her feel better. With him now gone, I felt like it was my duty as, the new man of the house, to step up and look after her.
Over the next few years it was hard at times but Sarah and I were definitely closer than ever. We had picked up new habits with each other and were like best friends. Going out to the cinema together, gossiping with each other, even wrestling but it was always quite harmless. However things took a whole different direction not long after Sarah's 18th birthday.
I have never thought of my sister in a sexual way. Even though she isn't my real sister, I have noticed that she had grown up a lot and had some very nice assets but noticing was a far as it went. Even when we play fought and I would grab her tit and cupped her ass, it never crossed my mind that it was bad. However one late night I had gotten up to go to the loo, as I walked back to my room I stopped outside Sarah's door. The noises I heard were unmistakable, the pleasure moans of her having fun either by herself or someone having fun with her. I leaned closer to the door to hear better, I don't know why I stayed but I did. Listening closely I was positive that she was alone and enjoying it a lot. As I listened something deep inside me stirred, the sounds where turning me on.
I had stayed too long and in my hurry to retreat to my room, I banged against the door. I didn't stop to see if I was noticed or not but made my quick escape back to my room. I dived back into bed and pretended to be asleep in case Sarah came into the room, she didn't. I lay in my bed for a while and stared at the ceiling and all I thought about was hearing my her moans and how it made me feel. A flood of emotions came over me, I felt a little ashamed because she was a sister to me but I also felt horny and intrigued. With all these emotions over me it was evident which one I felt the most because I realized I now had a massive erection. "Oh my god" I whispered out, had she turned me on so much?
I struggled to sleep that night but got some rest, the next morning was a whole new challenge. I had slept in and was late down to breakfast; Sarah was already sitting at the table as our mum was busy in the kitchen.
"Oh hey there bro, finally awake are we?" Sarah smirked behind her normal morning magazine.
"Right Jamie" mum said above the noise of her washing the dishes "I need you to nip down to the post office and post that parcel for me" she nodded towards a large cardboard box sitting on the table. "Also need you to pick up my dry cleaning"
"Uuggghhh OK, anything else?" I exhaled, hoping the answer would be nothing.
"Erm" my mum paused in thought, I eagerly waited in anticipation, fingers crossed. "No not today"
"Sweet, I mean OK mum" I chuckled as I grabbed some cereal and grabbed a seat next to Sarah.
I felt a little awkward as I sat there after what had happened last night. I quietly crunched into my cereal, avoiding eye contact with her. Then she broke the silence
"So dear bro of mine, what are your plans for tonight?"
I chocked a little on my cereal before answering "eh nothing much, just chilling here most likely. What about you?"
"Nothing much either" as she peered over her magazine, "would you like to watch a movie with me then??" she smiled lightly.
"Oh I suppose, how could I resist that smile" I said sheepishly.
"Yay good, it's a date" she said jokingly.
The rest of the morning went by without any mention of last night. Mum and I, headed out of the house at the same time. She went off to work, as I set off to complete her chores. I carried them out without any issues and was back within a couple of hours. My mum was still at work and I wasn't sure if my sister was in or not. "Sarah" I shouted out breaking the silence of the house, I waited for a reply and was greeted with nothing. Thinking I was alone I grabbed a quick bite to eat and headed up to my room. As I neared the landing, I noticed her door was shut which she only did when she was in. I moved closer to her door and was met with the exact same sounds as last night. She was playing with herself again but this time the moans were a lot louder, clearly thinking that she was alone in the house. I couldn't help myself but I stayed to listen more. The deep feeling inside of me was building again and I could feel myself getting hard in my boxers. It wasn't long until I heard it, one of the hottest sounds I have ever heard, Sarah having an orgasm. I couldn't believe what I heard; I quickly snuck into my room and eased my door closed behind me. I leaned my back against the door, again in disbelief as to what just happened. I stood there for a moment in a confused daze, I snapped myself out of it and went over and set up my games console.
I had only played maybe 10 minutes before my attention span snapped and my mind drifted back to the sounds of Sarah. This level I was on was hard enough when I was paying full attention but near impossible when all I thought about was the glorious sounds of Sarah's orgasm. I switched off my game and got myself onto my bed. I lay there, trying to relax but my mind began to run. I was no stranger to woman and had heard girls cum before, not just from porn. Not saying I was some big ladies' man but definitely made a few girls cum in my time. Drifting back, I reminisced about the few sexual encounters I had. Thinking of Polly from the store and how we had a quickie in the storage room or Beth at school, where she sucked me off in the toilets. Also losing my virginity to Carly at the house party and how great that was for my first time. God knows if it was hers but it felt great to me. As I lay there, thinking of these girls, Sarah was always in the back of my mind. How she had sounded so hot playing with herself and one feeling was becoming very dominant, I wanted her and my rock hard erection proved that. With the small feeling of wrongness and shame fading, I dozed off.
I was awoken by Sarah, tapping against my door as she stood in the door way.
"Hey wake up lazy bones; you have a movie to watch with me! Now come on" Sarah teased as she darted off out of my room.
I gathered myself as I tried to come back to reality, napping during the day does that to you, and when I looked down, my sweat pants where bulging from my still rock hard cock.
"Fuck" I muttered to myself, fearing that Sarah had maybe seen it. What if she had seen it and liked it or worse seen it and was repulsed, I was kind of her brother after all. "Geez Jamie, get yourself together" I said to myself, giving light taps across my face. I managed to get my erection down to an appropriate standard and headed down stairs. Sarah was already sitting on the sofa with the movie ready to play.
"Is mum home" I asked trying to remain calm and not worry about recent events.
"Yeah but she is up in bed already, you know, she can home from work and headed straight up." explained Sarah, not breaking eye contact with the TV.
"Ah ok, no worries" I said as I sat myself down on the sofa next to Sarah "what movie we watching??"
"Eh can't remember the name of it but it's got that hot actress you like in it!" she said with a slight smirk. "I know how you love her" she teased.
"Yeah yeah, enough. Just play the movie" I said. Now she would normally put movies on with the actress to tease me as she knew how I felt. However now, I couldn't help but wonder if she had an alternative motive to play this one.
About half an hour into the movie, Sarah did her normal move to snuggle into me. I honestly didn't mind, it was actually quite nice feeling her body against mine. It brought me comfort and I knew she liked it as she would always gave a soft moan of delight. She sat in her normal position with her head at the top of my chest and her arms wrapped round mine. It wasn't long until she made a different move; she moved her leg across my crotch and left it there. "What the hell is she doing" I thought to myself as I could feel her leg move slowly over my crotch. With the current mood I was in and all the thoughts of her, I felt my cock begin to get hard and grow. "Shit what if she feels it, it's going to totally freak her out. Shit shit shit, this is so awkward" I panicked. After a few minutes I was nursing a semi, by some miracle it wasn't fully erect yet but I knew she could definitely feel it. As my fear grew she kept her leg there and continued to rub "What the hell!!" I thought to myself. "Is she deliberately teasing me". I could feel the edge of her knee run alongside the edge of my shaft. Slowly up and down and almost in a circular motion. "I'm gonna get a boner if she doesn't stop this" but just at that moment, as if she had heard me, she moved her leg away. She stretched it away down the sofa and she snuggled her head into me more.
The movie finally came to an end and it was quite late, "OK time for bed" I said, stretching my arms up, trying to free them from her grasp. She reluctantly let go and I stood up.
"You go ahead" she said, comforting herself back into the sofa "I'm just gonna grab a drink then I'll be up." With that I headed up to my room, closing the door behind me and making sure it was shut. I got undressed, all the way, I like to sleep naked but all the time I was getting undressed all I could think about was Sarah. With my cock now hanging free it didn't take long for it to harden and grow into a full on erection. I got into bed but knew sleep wasn't going to come quickly; I had to relieve all this tension.
I slid my hand down my abs and wrapped my fingers around the tip of my cock, slowly starting to jerk it up and down. Squeezing it gently as I twisted my hand around the head, little bits of pre cum eased out. Sliding my hand up and down, all the way down to the base. Now I have some posters of girls on my walls which normally help do the job but this time there was only one thing on my mind. I knew it was wrong but I couldn't help masturbate to the sounds of Sarah. I tried to think of other girls to hide my shame but the only thing that worked for me was Sarah. Picking up the pace, I worked my shaft faster and faster. It didn't take long to feel the pressure building and thinking of her glorious orgasm, it threw me over the edge and I exploded. Squirts of hot cum spurted everywhere, "oh my god" I whispered loudly. That was one of the best wanks I've had in a while.
With my cock now floppy and limp, I got up and quickly darted to the bathroom to get cleaned up. I washed my hands as well as giving my cock a good wipe, also cleaning up small dribbles from my abs. All cleaned up, I washed my face and headed back to my room. I couldn't help myself but I stopped outside of Sarah's bedroom. This was very risky considering I was still naked but curiosity got to me. However as I listened there was no sound, no moans coming from behind the door. I walked back to my room and to be honest, a little disappointed. I slumped back into bed and got under the covers. "OK Jamie get it together" I said out loud to myself "Sarah is practically your sister and you can't think this way. You have had your weird little moment, now move on and forget about it." After my little word with myself, I drifted off to sleep.
The next morning I woke up, the horny urge was back and the normal morning wood was in full flow. "Fuck sake" I muttered "I have to sort this out" and I knew just the plan. I was going to head out tonight and try and hook up with a girl, fuck this problem out of my system. "Ok perfect" I said to myself as I got up and headed down to breakfast.
My mum and sister were in their usual spots, Sarah at the table with her magazine and my mom washing the dishes.
"Morning guys" I said out load as I gathered my usual bowl and cereal.
