I went straight in front of his face, I could feel his breath on my face. I said, "You wanna finger-f*ck my girl, you ass...what did you do?" "Nothing... he started to shiver alot. "oh come on, you didnt f*ck her... didnt put your cock up her pussy, you ass." I said as I grabbed his dick and balls and squeezed it hard. He screamed hard and cursed at me. I just stared back at him as I said "We are gona have a lot of fun." I unbutton and unzipped my jeans and slid it down and I revealed my dick. By then I had the mouth of a cheap whore, and it was weeks before my thirteen birthday.It was a Saturday morning and I got up and went into the kitchen, to find daddy sitting in his underpants only reading the paper and eating toast with coffee.I was wearing a long upper mid-thigh t-shirt, and nude underneath, 'Morning daddy', I said in my little girl like voice, which I knew pleased him, after all it was near my birthday.'Hi sweetie', he replied with a complimentary pat on my bottom, we would. Boxer off dancing and throwing it on her face. Then, I tried to take her gown off but she refused to and ordered me to sleep in the bed. I followed, she sat on my tummy facing away from me.I could feel her wet pussy on my tummy. I was just wondering what was happening, she started wanking my cock with her hand, it was so sudden. I had to hold on to the pillow to control myself. And I don’t know how but she was doing this like a pro. I knew I had reached the hardness I need and I asked her “if. I immediately grabbed her tits in both hands, and squeezed them, causing her to tilt her head back and moan, a little louder this time. I then leaned down and took one of them into my mouth, and started licking and sucking on her erect nipple, before moving to the other tit. "Oh, God, just like that, baby." My sister started rubbing my thigh, where she encountered my throbbing cock, which she started stroking through my pants. "You know, I heard you last night, in your room, after I ran you.