Description: Tired of being used as punching bags for heroes to pad their win/loss records, twin sister supervillains Shiver and Sizzle have decided to go straight. But not really, as their efforts to seek gainful employment at a bank are part of a long con to rob the place. It’s going reasonably well until a rival villain hits the scene, looking to empty the vault with a more direct approach, forcing the sisters to defend their turf. FF4F villain: In this version of the script, the object of their ire and desire is the Head Mistress, a stern schoolteacher who’s super-strict with men but maybe a little bit subby when confronted with two tantalizing twins who run hot and cold.