>>11296093
A variation on permanent bondage: Changing the slave's restraints and position regularly while never leaving her free.
>why would a slave of yours end up with this fate?
Bottom-ranked bitchslave in the harem, tied up so the other slaves can use her as a stress toy.
She may or may not be the former head slave who got a bit too smug about her position.
>how common would it be in your setting?
Average of one per harem. Depending how sadistic the owner is.
>what kind of bondage would they be kept in?
Hogtied / suspended from the ceiling / tied to a bed. Anything that leaves her unable to move around on her own.
Sometimes put in a position where she can do some basic exercise to keep her healthy.
>does anything of note happen after you finish locking them up and leave the room?
The other slaves pounce on her like hungry wolves.