Most of the actual work in the concentration camps was done by Jewish prisoners – escorting them off trains, cutting their hair, removing their jewelry and gold fillings, and so forth.
The “camp bordello” was part of the Jewish worker’s reward, an on-site brothel where the most shapely female prisoners were kept as sex workers.
Both the “kapos” (Jewish work leaders) and the Jewish whores knew full well what was going on at the camps, and they played their roles willingly and voluntarily – well, realizing that like all other workers, as soon as they stopped doing their job well, they would be killed.
This ranks up with the little-known fact that at least 10% of the slave owners and plantation owners in the Old South in America were blacks.