My wife cheated on me with my best friend and left me about 6 months ago. I was devastated when I found the text messages between them. It’s been a difficult time for me, and I have pretty much locked myself in the house since then. Fortunately for me, I have a very supportive family, especially my sister and her husband. They have an 18 year old daughter who is always getting into trouble. Not the really bad kind of trouble, but she is a clumsy young girl and often does something stupid, like spilling soda on the carpet or like today - she dropped a fork down the garbage disposal while it was running and locked everything up. She called me in a panic, because she knew that I’m the cool uncle, would make everything ok and fix it without her mom finding out. We have this repoire with one another, but lately she’s been a lot flirtier with me than usual. Now, she is not my sister’s real daughter. Her husband had her with his first wife, but my sister has been raising her for a few years. Her daughter has a little crush on me I think. During a family picnic once, a bunch of us were horsing around in the lake, when the next thing I knew, there my step-niece was bumping up against me a little too often. I couldn’t help but get a hard-on with the way she kept accidently bumping her ass or her hand up against the front of my tented swim trunks. Nothing else happened, but I have thought about that day more than once. Today when she called, I stopped over after work and fixed the garbage disposal in no time at all. My sis and her husband weren’t home, so I figured I’d hang around for an hour before they got there and head out so my sister wouldn’t find out that her daughter fucked up the disposal. Needless to say, my niece was very thankful. As I said before, she has been extra flirty with me lately, and I’ve been missing female attention to tell the truth. I haven’t dated or even hired a prostitute since my wife left – although I have watched a lot of porn and spent a lot of time with my right hand as my date. The prospect of being in the company of a cute 18 year old was very enticing, even though I had to keep reminding myself that this was my sister’s daughter and I couldn’t cross that line. Then she started telling me that she wanted to really thank me for helping her, she told me that her parents weren’t going to be back for a while, and that she has a crush on me. She reached over to my lap and started feeling the crotch of my jeans. The time at the lake was no accident, this horny little 18 year old girl was being very aggressive. It had been so long since I’ve gotten laid, that my little head took over and I let her touch me. She fumbled with my belt and pulled out my stiff cock, and grasped it in her small hand. The whole time she pulled my pants down all I could think about was what might happen with this girl – how far would I go. I had forgotten that she was my niece. She leaned close and dropped a line of spit from her mouth to the tip of my cock. She slid her hand up and down the shaft and started to increase the speed. It was like this young girl could hardly wait to make me cum. She cranked my cock better than my cheating wife ever did. I just laid back and let my niece work out nice thick load of cum. I pretty much blacked out after that cranking – the only thing I remember was her telling me that I might have gotten some sperm on her mom’s couch. My sis would be pissed about that one. After I came, I cleaned up and got out before my sister and her husband got home. The last thing my niece said to me before I left was that I am the greatest uncle in the world. Starring: Summer R ae