The Horny Games (monster Gangbang Erotica): The Horny Games, #1

Warning! This explicit story contains sex with monsters and includes oral sex, anal licking, and vaginal sex.

Years ago, the world population reached its peak. In an effort to stem population, sex was disallowed and only certain areas were allowed to have it. In its place was the Horny Games. A Labyrinth full of monsters that a woman from each area had to pass through. Whoever made it through would bring unlimited sex back to their area for a year.

Karen is the volunteer from her area, taking place of her sister Linda. Stuck in the Labyrinth full of man-made monsters, Karen and four other women try to battle their way to the exit.