The Xelusine, Sirens of Sin

From publisher blurb:

This volume is the siren song of the Xelusine, seducers from the deep. Born of a corrupted wish, these drow are worshiped by cultists rather than served by slaves. They offer forbidden pleasures wherever they roam, and bless their most devoted disciples with the gift of becoming drow, themselves. Heedless of noble houses, without families to hold them back, the Xelusine create a world in which everything is permitted, if desire can make it so.

Highlights of this chapter include:

A template for converting other races to drow
Special systems for temptation and satisfaction
The cult leadership feat, with downtime and mass combat options
Apathy, avarice, gluttony, and vanity domains, with their subdomains