Back in 1983 I was at my sister's apartment on time. She went somewhere so I decided to look through her dresser, particularly the drawers that had lingerie.
First off, I thought my sister was pretty and hot then. So I grabbed a nylon and lace nighty and took it home. I couldn't wait to try it on so I did that night in my bed. It felt nice against my skin. A few days later, after beating off in it a few times, I decided to wear it into the shower. I lathered up with it on me and jerked away. Although I had previously adopted a way to jack off by just rubbing my dick real hard, through clothes. I found that after a few minutes I orgasmed really good using this technique. I think that I washed the nighty in the shower, with just soap, and let it dry in my bedroom, before returning it to my sister's dresser several days later. I will never forget that experience when I had turned 18.