I stay horny all the time and masturbate almost every night, sometimes twice a night. One day I had my little 18 year old niece stay overnight with us...and she was sleeping in the spare bedroom next to Jim's, my son. I thought I heard noises that night after I went to bed and got up to check it out. As I eased down the hall, I could tell the noise was coming from Jim's room. Not wanting to interrupt anything, I eased to his door and saw it was partially open. As I looked inside, I saw Jim lay. Tears started to roll from her eyes. I kept face fucking her. I lifted her up and put her on the edge of the bed in such a way that her head was hanging down. I caught both her boobs and again started to mouth fuck her. After few attempts, she started taking it in.Again we both started to kiss each other. I asked her to spread her legs. Her pussy was amazing cleanly shaved. It was fair. I started to lick her pussy. She couldn’t control her juices were flowing, and I was not going to leave her. Making sure that i didnt touch it. after what seemed like hours of eating her out she was squirming around on my bed. i slowly pushed my tounge up and licked her clit. her body instently started shuttering as she had her first orgasm of the night. her pussy juices started to squirt out and i lapped them up like i had not eaten or drand anything in days. after she calmed down i slid up to her and we started kissing. she pulled away and pushed me onto my back. she slid down and slowly took. "Daddy … your … so... big." I watched in silence as this beautiful young woman masturbated on my couch. Decided to leave and come back in making a racket. Opened and closed the door loudly. "Crystal I'm home early " I said loudly as I opened the living room door to see her scrambling around, knickers around her mid thigh, her blouse buttons askew, hairbrush on the floor, DVD stuffed behind the cushion. I was trying to stay straight faced shocked but really I was turned on. "Mr Daniels .. Umm I.