"Make sure that your sister is fed and in bed at eight every night, ok?" said my dad while he and mother where preparing for their two week long holiday in Canada. Personally I would not choose to go to Canada to celebrate my wedding anniversary as it is pretty cold this time of year.

"You're eighteen now so this is a giant step of responsibility for you to look after yourself and your sister. The schedules for the days and so forth are on the board. Money is in the pantry and any emergency call your aunt Beverly." Said mother, in a rush to finish up her make-up.

"Yea sure ma', I got this."

"She is only six, we are putting our complete trust in you," mom said while looking at me through the mirror with a little more concentration to see if I am serious.

"Ma, I promise that nothing will go wrong," I said meaning it.

I followed my mother down the stairs helping her with her luggage when Jessica (my sister) was at the bottom of the stairs greeting our parents' good bye. Dad grabbed the luggage from my hands with his one hand and with the other he escorted mom out.

As soon as the door closed Jessica had scattered off. Jessica has pale skin and lower back long black hair. She always wears the tightest dark blue jeans and T-shirts she can find, which wasn't really a problem because her body was skinny and smooth so she could really pull it off.

I jogged up the stairs to my room and flopped onto my bed. I pulled my pants off and shirt because I knew what was going to happen next. You see ever since my sister saw me naked she has started to have an interest in sexual acts. This happened about three months ago and since then my six year old sister and I have been experimenting in foreplay.

I would lick the sweet nectar off her pussy and run my finger along her slit and she would suck on my cock until I shot my cum in her mouth and what I found even more arousing is that because she is so small she would often get so full from eating my cum the she wouldn't eat breakfast the next morning and sometimes lunch and once dinner.

Now that our parents are gone we could be as sexual as we want all day every day for as long as we want. If Jessica wants her pussy licked instead of go to school I'll make it my mission.

So here I was lying on my bed just waiting, and soon to my expectations came, the knock on my door.

"Come in!" I shouted and the door swung open. There she stood, with only a set of pink tight panties.

"Can we play big brother?" she asked innocently as she slowly and carefully walked in.

I tapped on the bed twice to answer her question and she jumped up next to me. She lay down on her back and I slowly trailed my finger from the centre of her chest, passed her tinny belly button, and down to her panties which I gently pulled off. I then slowly began to trail her slit up and down. My cock was raging and today I wanted to take our relationship to a whole new level.

"Hey sis, have you ever wanted to be fucked?" I asked hoping she would say yes but she just moaned from the pleasure I was introducing through her cunt. I slowly inched myself on top of her and slid my tongue into her mouth. As we kissed, I rubbed at her pussy and she rubbed up and down my hard cock.

I slowly began to play with her chest that held two mosquito bite pink nipples, the sent from her pussy has filled the atmosphere and intoxicated me. I shifted my hand from her cunt to my cock and she moved her own hands to the sides of her head to grip the pillow. I think she knew what was coming next. I positioned my swollen cocks head at the little hole in her slit and I could feel those tiny little lips around the very tip of my cock.

What I was about to do next may not be possible, even her lips struggle to fit around my cock so I don't know how I am going to pull this one off. I slowly pushed in with concentration and soon I managed to just fit the head in her, she was squirming on the bed and kept chanting, "Deeper, deeper."

I continued pushing in my little sister and what seemed to be ages I managed to get round about 80% of the length of my dick in her, I felt my head squashed against the end of her cunt, this incredible moist warmth accompanied by a massive amount of pressure was the most erotic sensation I have ever experienced especially knowing that it is with my little six year old sister.

Eventually the pressure seemed to lighten up for both of us and so I slowly began moving in and out of my sister. She gripped the pillows tight and wrapped her tiny legs around my waist as I slowly and gently fucked her. She moaned loudly and every now and then broke into a scream.

I slowly increased my pace as I felt the head of my cock slam into the back of my sister's pussy. Slowly but surely I felt pressure build up around my cock. It wasn't the same pressure as before, this felt like something was filling her up but I hadn't came yet.

Just then a see-through warm liquid came squirting onto where my bladder in situated and on her belly, this liquid seemed unending and I eventually realised my sister is squirting what seemed to be more water then what she can hold inside her entire bare soft skinned body. I could no longer last, I shot river and river of cum into my sister and my cum mixed with her squirt came shooting out of her hole onto our stomachs and thighs.

As soon as I had released every bit of seed I had I got off my sister and lay next to her. She then sat up facing me on her knees and the combination of our orgasmic fluids leaked out the centre of her lips but soon connected to the back of her thigh and puddled on my bed.