I read this story a while back I remember that I clicked on it by accident so i know it has a title that didn't intrigue me,lol. It about a guy who is paid to kill some guy and film it for proof, he ends up raping him, castrating him, etc. I think it take place in a shed and is told from the viewpoint of the cutter

P.s. pretty sure that the guy getting cut vomits durning the cutting

Thanks