If 你 mean posting it on Fanpop, 你 should post it as an article. Chose the option 'Fan Fiction' when 你 are posting it. Obviously 你 should post it in the most appropriate spot, depending on the subject of your 粉丝 fiction.
你 have to have an account on fanfiction. YOu go to 'document manager' and 上传 your document. Then go to 'new story' and create a new story. I think 你 have to wait 24 hours before 你 can post one though.
