Akin's comments were based on an article from 1972 a Dr. Mecklenburg. The article was in a book published by an anti-choice group. Mecklenburg's theory was based on "research" that had been conducted by the Nazis in concentration camps, where they would pretend to kill women who were about to ovulate so they could see the effects of terror on ovulation. Mecklenburg also said that rapists tend to not be fertile because of frequent masturbation.

Article in Seattle Times

If it was fiction, I'd think the story was too far-fetched to allow me to suspend my unbelief.