If I remember correctly the story had 3 parts (unless more came about). It was about a man that met a woman and progressively over the 3 parts (or honestly maybe it just felt like 3 parts) went from having sex with her, to being blindfolded and having a man suck him off/him fucking the man, to eventually getting fucked by a man. I frequent the Trans/Cross category but haven't found anything in there. Maybe it was in a different category.