Born for Breeding

Eve, an artificial human created through genetically engineering and modifying the DNA of a volunteer. She was engineered to use practically any hole in her body as a sex organ. She was created to combat a parasitic species of alien that has recently began to make earth their home. Her body naturally creates an acid that is fatal to the embryo implanted by the facehugger, and her body naturally secretes a pheromone to attract them. Eve is one of millions of genetically engineered humanoid weapons designed to be facehugger breeders.

She is a weapon. A weapon used to breed and stop a much larger problem.