Getting into the role

Now that Zack had his fun, he went back to getting a clear grasp of his situation, deciding to take the milf with him. But as he moved, Zack simply couldn't get enough of his new body and the 20 out of 10 beauty he attained, watching as a group was either lightly bitten or fucked or kissed or scratched and then turned into milf zombies. It was then that he got a grasp of the situation:

1. He can't get infected but everyone else can
2. The zombies won't try and fuck him unless he makes a move on them
3. The uninfected people have powers and those that get infected keep them but can only use them in a more basic sense
4. The transformation into a milf depends on how "milfy" a person is with milfs becoming mega-milfs and macho men becoming muscle-milf mommies while fatties and washboards turn into the smallest kinds of milfs who at least have massive tits and asses.

With this understood, Zack decided to simply have fun with it and fuck milfs he found attractive which just so happened to be all of them, getting the zombies away from the survivors by putting the moves on the zombies. Within a week, Zack became a king who fucked all the milfs of various varieties while the survivors did things to entertain him as the zombies he fucked were also trained to become useful for the base by gathering supplies or doing other duties. The standard of living for the survivors under Zack's care was better than when they were alive, especially since they didn't need to worry about the milfs since they were like infatuated housewives, only caring about their jobs or Zack.