One possible sex letters story could be about a series of love letters exchanged between two lovers. These letters were filled with passion and desire, and they became a symbol of their deep connection. They might have used words to express their physical attraction as well as their emotional bond.
Well, perhaps there was a story where a young woman received anonymous sex letters. At first, she was frightened, but as she read on, she found that the letters were actually a form of creative writing from an admirer. The letters were full of flowery language about beauty and allure, and it led to an interesting encounter between them later on.
There could be a historical sex letters story. For example, in a certain era, the exchange of letters between couples was a way to communicate about their relationship, including their sexual feelings. These letters were often coded or written in a way that was acceptable in society at that time. They might have used metaphors to talk about their physical relationship, like comparing love to a burning fire which also symbolized their sexual passion.