Note: This story was dynamically reformatted for online reading convenience. I was in my room watching t.v. when there was a knock on my door. i opened it to find my sister standing there naked. i was only 13 at the time, she was 14. We had both been raped and molested by our older brother years before, so we were both very sexually confused. as i stood there staring at my naked sister i was not sure how to feel. here was my sister who i love and have touched and seen naked before several times, standing at my door naked. before i could respond, she pushed me onto my bed and shut the door behind her. i already knew what was going to happen, and i was getting very nervous. "what if mom and dad come home?" i asked hoping this would deter her. "they won't be back for hours, they're at the bar." She had me. i knew they would be gone atleast long enough for my sister to get what she wanted. There she stood at the foot of my bed, staring at me, wanting me. i was about to protest when she jumped on me. she straddled me, her pussy right over my lap, and leaned down pushing her breasts into my face. she began dry humping me, moaning softly. i began to grow hard instantly. I was so confused at this point. i knew she was my sister, and it was wrong, but i was so turned on and she wanted me so bad, how could i say no? she got up, and i sat up hoping that this was all she really wanted. i was wrong. she grabbed the bottum of my shirt, and lifted it over my head. i guess i really wanted it because i just let her. i layed back and she undid my pants, pulling my now fully erect penis out, and placing it in her mouth. she sucked on it furiously, like it was the last cock she'd ever have in her mouth. she slobbered all over the head of my cock, licking it with the tip of her tongue. she sucked me off until i came and she sucked down my load. she got up and straddled me, reaching down with one hand for my cock. she grabbed it and started rubbing the head of my dick against her clit, sliding it down her pussy slit. she was so warm and wet, it made my cock throb. she pushed the head of my cock into her tight, wet, warm, welcoming pussy and began sliding down my pole. she moaned a little as my cock penetrated into her. she started riding me slowly at first, rubbing her tits, her eyes closed, letting out soft rhytmic moans. as she began to pick up speed gradually, i began moaning with her. she layed her body against mine, the feel of her hard nipples pressing against my chest added to the arousal, her head was next to mine, i could feel her breath on my neck and hear her moaning in my ear. i thought i was going to cum right then, when she sat straight up, and got off of me. i sat up, my cock raging, and just as she turned to walk out of my room i said, "where are you going? you have to finish the job!" and grabbed her by the arm, turning her around, pulling her towards me. she looked at me with confusion at first, then smiled. she knew what i wanted. she layed down on the bed, ass up in the air, and i walked up behind her, and slid my cock back into the warmth of her dripping wet pussy. as i began thrusting into her, my balls slapping against her pussy lips, she began thrusting back. we fucked furiously, her moans growing louder with each thrust. i layed over her and grabbed her tits as i continued to pump her. she grabbed my hand with hers and looked back at me, kissing me passionately. i was so turned on at that moment, i sat straight up and thrusted as hard and fast as i could, breathing furiously, until finally we both came. i let out my load deep into her pussy as her pussy contracted and shot pussy juice all down my shaft. i collapsed onto her and kissed her a few more times, before slowly pulling my now flacid dick out of her. we both sat up and looked at eachother. she got up to leave, and i told her, "we should shower, we're both so sweaty and dirty," and she nodded in agreement. we walked into the bathroom, shutting the door behind us. she sat up on the sink counter while i got the shower ready. as the water warmed up, i walked over to her, standing between her legs which she wrapped around my waste, pulling her body closer to me. we began kissing and i started fingering her pussy. i couldn't believe how wet she still was, she was insatiable! the bathroom started fogging up from the steam, and we moved to the shower. she began rubbing soap all over my body while i played with her nipples. she took extra long rubbing the soap all over my cock and balls, stroking my shaft gently. as i rinsed off she handed me the body wash, and i did the same for her, foaming up her huge tits with soap, standing behind her with my cock pressing softly against her ass cheeks. she reached back and stroaked my cock as i soaped her pussy teasing her clit with my fingers. i kissed her neck as she turned around to face me. she looked me in the eyes, and i stared back at her. our bodies pressed together, her nipples in my chest, my cock touching her pussy lips, the warm water running over both of us. i lifted her leg and put it on my side holding it in place with one hand as i pressed my cock head into her pussy. her back was now against the wall, and i was deep inside of her. i began thrusting at a steady pace, sucking on her nipples, both hands on her ass cheeks. she let out a loud moan and said "harder!" and i obliged. i began thrusting faster, deeper, harder. i pumped her pussy in this manner until we both came again. then she said "now it's your turn to finish the job!" I turned off the shower, and we got out. she sat down again on the bathroom counter, spreading her legs, and touching her clit. i dropped down on my knees, and began licking at my sister's clit. she wrapped her legs around my head, and pushed my head deeper into her pussy with her hands, grabbing onto my hair. i licked her clit furiously, teasing it, running circles around it, nibbling softly on it with my teeth. i reached under her leg with my right and and placed three fingers into her slit, still nibbling on her erect clit. i pumped my fingers in and out of her pussy rhythmically, playing around looking for her spot. as i touched the inside roof of her pussy, she tightened her grip on my hair and i knew i had found it. i continued to rub her g spot and licking her clit for only moments when she started moaning uncontrollably, her pussy started pulsating and a steady dtream of clear fluid came shooting our of her pussy and into my waiting open mouth. i slowed down and eased out of her, standing up to look her in the eyes. we kissed again, and she held me close to her panting heavily. We left the bathroom and we each went to our own rooms and got dressed. we didn't say anything to eachother the next several days, but we both knew we would have to have eachother again. soon. and we did, the next weekend our parents went out of town for a trip, and we spent all weekend fuckin like animals. in every room of that house.