Fiction:The Firmament/Halls of Passion

The Halls of Passion are the realm of the demon lord Hamoilles within the plane of Irkalla.

Description
The Halls take the form of a fortress of ice and stone which radiates an aura of sensual immorality. Those who dwell in it are expected to, and encouraged to, indulge in their carnal desires as much as possible with the Frozen Harlot's succubus and incubus servants, with Hamoilles herself typically residing at the deepest chambers, participating in great orgies where she is the focus. Those who wrong the Frozen Harlot are locked in the dungeons, where demons repeatedly tease the prisoners but never allow them the satisfaction of a climax.

Inhabitants
The Halls are inhabited primarily by Incubi and Succubi, though other demons who pledge themselves to Hamoilles are also common. There, they feed on the souls of mortals who have surrendered to the Frozen Harlot's invitations of sin.