Vulcan Love Slave, Part II: The Revenge was an erotic holoprogram, the sequel to the popular original Vulcan Love Slave.
Quark kept a copy of this program in his bar for his holosuites. (DS9: "Doctor Bashir, I Presume")
This version was also popular, and resulted in another sequel, Vulcan Love Slave, Volume III. (DS9: "The Emperor's New Cloak")