Does anyone know the name of a story

[cassandra7]

in which Remus is an advanced university student working part-time in the library and Sirius hangs around the library, trying to court him, although Remus doesn't encourage this? For some reason Remus has difficulty walking and uses crutches. Sirius gives him a button with symbols that work out to say "Too cute to be straight." An unusual and haunting story, and I'd really like to find it again.

Also, does anyone have copies of or working links to the stories of BlackSatinRose whose account seems to have been deleted, I'm sorry to say? Thanks again--