My wife has a niece who has to be the most beautiful girl I have ever laid eyes on. In addition she is sexy as one can be. She causes my dick to get hard every time I am around her. She lives at home with her dad. Last week my wife and I were visiting their house. While there I had to use the bathroom. I was sitting in the bathroom when I happened to notice a pair of Dee's panties on top of the hamper. I picked them up and examined them. I looked at the crotch and could see lots of dried pussy juice. One sniff and I was throbbing. I had locked the bathroom door so I took hold of my dick and started jacking while licking and sucking the dried pussy juice from the crotch of her panties. Smelling her odor caused me to cum much quicker than I wanted to and just as I held her panties down in front of my dick to catch the cum, the door flew open and in walked Dee. I was too far gone. Cum squirted out and in my attempt to hide her panties it hit the floor, almost landing on Dee's feet. She quickly exited the room closing the door behind her.
I cleaned up and walked out of the bathroom not knowing what to expect. Dee was in her bedroom just across the hall. I said something like, 'I'm sorry, I thought the door was locked.' She said, 'It probably was but sometimes you have to pull it hard to get it to catch.' I then asked her not to tell anyone what she had seen. She just smiled and said, 'I kinda enjoyed seeing what little I saw. You don't have to worry about me saying anything.'
I was relieved and went back where everyone else was sitting. I am thinking about approaching Dee and asking her if she would like to see more. This may turn in to something wonderful.