At one time I had a job where I travelled a lot in a van. I would cover about 100 miles a day. Being a young man, my cock got hard a lot. I had this fetish of looking for condoms that were used. This gave me a hard on thinking about it being used the night before and the feel of the condom full of some guys spunk would make me rock hard.
One day while looking in one of my favorite spots I found a pair of pink nylon panties along with a condom. I saved the pair of panties until I got home and with shaking hands used them to masturbate while thinking about how hot this girl might have looked.
From then on, whenever I searched one of my spots, I would look for more panties. I would also look in the homes of people while I was there servicing their televisions. Sometimes I would find a really sexy pair of panties and would determine if they were worth taking so that I could use them later.
I also started to put on a pair before starting work and would wear the panties all day long, giving me a hard on that would feel good all day rubbing on the satin or nylon panty. By the time I got home, I was ready to shoot my load into the panties.
To this day, some 40 years later, I still love the look and feel of panties.