Demon Cheerleader

This story is told through the lecherous eyes of a high school janitor. The school is first beset by a zombie virus, and then is held captive by a demon, which forces the student and faculty into degrading sex, acts to feed her cravings for cum. There are numerous sex scenes, which include coerced sex, orgies, reverse gangbangs, gangbangs, and one on one action! The book was titled The Bad Janitor