Haven’t you ever wondered what would happen if someone had sex with a zombie? Furthermore, what would happen if you came inside of a female undead monster. Me personally, not my thing, but I hear a lot of talk at the station of some of the guys going out and tying one down and having their way with her (it?) to blow off some steam.
We always joke about making sure to pull out so there are no zombie hybrid humanoid freak babies running around. Meh, even if that did happen, just one more thing to shoot.