My ex-girlfriend and I used to have a bit of a weird kink: whenever we were going to have sex, she would always be wearing the same super-short pink shorts (not something to wear in public). It somehow just became a routine, and whenever she was in those shorts, I knew that we were about to get it on. Somehow, later in the relationship, it became a thing for me to pull out during sex, take the condom off, and come on those shorts. Of course, we would wipe it off after, but it turned us on so much that we had a pair of dirty sex shorts. Even when we traveled, she would always pack the shorts as well.
Well, sadly we broke up — and not on good terms. I was staying with my parents at the time. She sent me a package with an angry letter and the sex shorts included, along with a few other things. I guess she didn’t want to keep them. Well I didn’t know what to do with it either, so I just put it in a drawer in my closet, and I forgot about them.