As I came in the front door of our house, I said to Katie, "I spoke to Steve but he is going to do whatever he wants to, sorry I couldn't be of more h...elp." That's OK, I'll handle it myself."Over the next couple of weeks every time Katie would catch Steve watching she would start putting on a show. At first all she would do was to untie the top to her bikini and just lay on her stomach. That soon evolved, she would untie her bikini top lay down on her stomach then take off the top and lay it to. " She shut me up by kissing me softly on the lips, thrusting her wet warm tounge in my mouth. I began massageing it with mine, and before I knew it my pants were at my ankles and her hand was around my cock. I unbuttoned my shirt and took it off and threw it on the table next to us. She kissed my chest, sucked my nipples and kissed my stomach down to my cock. She began licking the tip and sucking the head slowly, then went down all the way to my balls ,almost deepthroating me, but she began to. "Look at your sister Matthew, Dan whispers into his ear, i know she is your sister but just look at her closely, look at her body, that small smooth body and her pouting lips" Without even realising what he was doing Matthew had started looking at her noticing her chest and lips very fast. "imagine those lips wrapped around your cock, sucking you slowly, sucking on you, sucking" he whispers as Matthew begins to stiffen in his slacks before turning to Dan " what the fuck shes my little sis". I tore her panty and slammed her on the bed. I unhooked her bra and attacked her boobs like there was no tomorrow. She was moaning too.I licked her nipples and put one of my hands on the other nipple and my right hand in her pussy. She was already wet. I fingered her hard and she came. It was my time to cum. I literally fucked her face.I shoved my cock into her mouth and started ramming my dick. I couldn’t hold anymore and emptied my balls in her mouth while sitting on her face. She couldn’t.