There was this one really hot fic I read like 14-15 years ago on
FF.net. It was an AU where Roxas was dating Xemnas but had a secret affair with Saix. Axel caught wind of it and decided to teach him a lesson, so he tied Roxas to a bed and brutally raped him. I distinctly remember the author describing Axel's 'big, hairy dick' and red pubes and it ended with a victim blaming bad end. I got to read it all of once and never again because I think it got deleted off the site right after. Never found it anywhere else again. RIP.