I suppose a legitimate rape can only happen if it occurred to a lady. A lady could shut down fertility of her egg from hostile sperm.
See, even if a lady were assaulted and inseminated she would be sooooo, very traumatized she would abort the fertilized egg.
Todd Akin must be a vampire with his orientation in the past where science hasn't existed yet. There is no other logical explanation for his estrangement from reality while holding so many in the population of Missouri voting captives.
That aside, the Republicans don't care about women. They care about power and Akin is the only game they have so of course they are going to back peddle on everything.