A sisters fantasy.

Note : This story is completely fictional!

It was 11:45. My sister usually comes home around 12:00, every weekend night, after the parties die out. Sometimes, it seems to me like she is always the last one to leave, that she needs to be the last one there to feel important, or in power. I think she just does this because she's afraid of me, or what I mean to her. We really never talk, normal siblings, living our lives separate, and distant from one another, so it goes without saying that it's nice to be able to actually talk to her every one and a while. 

This leaves me with exactly fifteen minutes to finish jacking off, and at my current pace, I should make it just in time for her to use the computer. Usually, I surf the Internet looking for porn for hours at night, with no girlfriend, and no social life, it's all I really can do. However tonight was different, instead of looking at free porn, I stole my parent's password to their own porn site, and was practically downloading any movie that I felt like watching. It was beautiful, really, having my unusually large 6-inch dick in my hand, fulfilling, and completing my deepest and darkest sexual desires. Sometimes I thought to myself how lucky I actually was, a virgin at 17, still young, and decked out with one hell of a cock. I knew that when the girls found out what was in my pants they would freak out, and I wasn't really sure if I was fully ready for that to happen. I heard the refrigerator door slam shut, and jumped to the conclusion that my parents were being nosy, and intrusive, as usual. Only, after hearing the noise, I realized it was much too quiet to be the refrigerator. I reached for my zipper, and began to zip up my pants, with the reassurance that if it was my sister, the door would be locked. I was wrong. I had forgotten to lock the door, and she was now looking in, with her mouth open, at me watching some porn star pound a very young teen. With one hand on my now throbbing dick, I managed to stick it back in my pants, and sheepishly turned to look at her.

"Well I can see your home early," I managed to squeak out.

"You forgot to lock the door, idiot," She replied. "I hope that you have learned your lesson."

She closed the door, and began to make some macaroni and cheese on the stove. I was confused. My sister just stared at my completely erect penis, and now was just five feet away. I thought about what to do, and how my parents would react when she told on me. I almost had a stroke. I was locked up on the chair when the door cracked open, and she poked her head through.

"Hey Dick, you wanna bring the dog downstairs?"

Wow. The dog. What a way to hide the fact that her pussy was aching for some hardcore incest.

"Sure," I got out of my chair, turned off the computer, and walked out into the hallway. She waited next to the basement door, next to the dog, looking more scared than ever. I began walking towards her, with a million thoughts streaming through my head. Were we going to have sex? Is my sister going to actually be nice to me for once? Is the dog gonna watch? I honestly could have sworn that every footstep took an entire minute to complete, and shuddered with the thought that by the time I had completed this short walk, I would be standing next to my half drunken, younger sister. She looked me right in the eyes, and proceeded to walk downstairs. Very quietly I followed, obeying her whisper commands as to what to do. The door closed, and I thought to myself, is this actually happening? She stood there, at the bottom of the stairs, looking up at me. Her shirt was already off, and lying on the concrete floor. I dropped my pants, and set them next to her shirt. My cock bulged instantly, followed by the most intense, gutwrentching feeling when she grabbed at my underwear. She dropped to her knees, dying to serve, and began to pull down my boxers. The sight of my six incher caught her offguard; she didn't know what to do. I could tell it knocked the breath out of her.

She whispered to me "I've never seen anything like this before, it's so big, I don’t know if I can fit it all in my mouth" 

Then began to gently stroke the shaft of my dick, and slowly started to lick my head. Quietly, she began to suck on my tip, sticking it deeper and deeper into her throat with every bob. The pleasure I experienced at that moment was off the scale, having my sister suck on my dick was too intense to even begin to describe. I was rock hard, dangerously hard to be honest with you, and wanted to tear this girl apart. She looked up, mutually; we stood up, awkwardly, and began to lie down together. I moved my hand towards her panties, gently stroking the outer limits of her virgin mound. She moaned in pleasure, and ached in the desire for her underwear to be pulled down to her ankles, which I then did. 

My dick was pulsating now, just inches from her untouched, virgin slit. She grabbed the head, and positioned it right where she wanted it, and closed her eyes. I pushed, and she gasped. I couldn’t believe how tight and warm she was, and began to slowly pump her with what she wanted. Half of my dick was buried deep inside her, moving faster and faster, deeper and deeper. She winced in pain as I began to slam it in, slapping my balls against her. By now I noticed that I was having sex with my little sister, and we were loving it. This girl took my entire cock, and now, was begging for me to pound her with all my strength. I pulled her up a bit, pulled my cock out, and jammed it back in, the whole thing, as deep as she could handle. She began to pant, and I could tell she was at the peak of her orgasm, which triggered me into realizing that I was about to cum. I looked her in the eyes. She nodded back at me. Quickly I pulled out, and with a firm grip on my shaft, I began to jack off. She kinda backed away, with a scared look on her face. I was surprised, and felt betrayed. She then realized what this meant to me, and got down on her knees, right next to my dick. She tilted her head back, opened her eyes, and slowly stuck her tongue out. I rested my head right on her tongue, and grabbed for her hand. Quickly, I placed her hand around my head, and motioned for her to begin to stroke. She did. She was now, slowly jacking off my dick, controlling my increasingly intense orgasm. My cock began to throb, and I began to cum. It took a while for my jizz to spurt through my shaft, and instead of spurting out, it built up at the head, and erupted. It shot all over the girl's nose, and down her throat, covering her pretty face in my salty sperm. I continued to pump my cum all over her, shot after shot, the intensity rose and all the while, she was kneeling there, stroking my cock, with a silly little grin on her face. I finally stopped, and my orgasm subsided, leaving her there chuckling, covered in my sperm.