The Recreational Room by Anatoly Sernnov.
One of most feared and hated locations at the State Correctional Facility For Female Offenders was the Punishment Chamber, where naked prisoners endured a variety of torments and suffering often augmented with an array of torture devices.
Almost as loathed was the Recreational Room. There inmates were forced to entertain the guards and selected visitors, some of whom practiced diverse sexual perversions.
In this scene Convict 198641 (in civilian life know as Lilly Parker) is exhausted after a full day of undergoing copious rapes and sexual abuse.