I am playing with my dick as I write this story. It all started a few days ago. My 35 year old sister-in-law and her husband was out of town and I was watching their house. The day after they left I was checking things out and found a pair of her panties that she had worn and thrown in the hamper. I picked them up and even before I got them to my nose I could smell her pussy. I went to her bedroom and looked in her panty drawer. She wears mostly colored panties but there was one pair of white panties and they were on top of the folded stack of panties. I got the white panties and quickly pulled my dick out and as I smelled and licked her soiled panties my dick got so hard I thought it would break. I say down on her bed and as I stroked my dick I ate the crotch of her panties. Pretty soon I filled the crotch of her clean panties with a big load of cum. I smeared the cum all over the crotch and put the on top of her dresser to dry. A couple of days later I stopped by her house and neatly folded the panties with the dried cum and placed them back on the pile of folded panties. I kept the soiled panties to use again.
Late yesterday afternoon she returned home alone. Her husband is due back in a few days. About an hour ago she came by our house to thank me for looking after things. I could not help but wonder if she had on the cum filled panties and when she bent over to pet our dog I saw the white panties and knew my dried cum was getting all over her pussy and mixing with her slick juice. I got so hard I could not stand without her seeing it. Thank goodness my dick went down before she left. She just walked out the door and since my wife is not here I have gotten out the pair of the dirty panties that I kept and I have to jack off to relieve the pressure. I also have an added bonus. I checked their computer while I was at their house and found about 2 dozen naked pictures if her in all positions from standing to lying on the bed with her legs spread holding her pussy lips open. I am going to end this and open up one of her beautiful pictures and take her soiled panties and hold to my nose and shoot another good load as I smell her delicious pussy.