RPG character for Mazes and Mages from Hound's Home. Created by the completely-lacking in social skills Melvin Meeks. Intended to be role-played by blond buxom socialite Ashley Burroughs. Her existence or at least Ashley's role-play of said character is the life-long dream of Ray Tracy the computer geek. Great sendup of the sexual fantasies of geeks.

Calista is also the reason for many sold boxes of Everquest - she was moonlighting for the box, and Everquest characters who resemble her gain more help, attention and unwanted requests for cybersex.