(I wanted to remake my story about a Horny Zombie Apocalypse. I wanted this to be less about interaction and more about the story.)

There is a zombie apocalypse happening, but instead of cannibalistic monsters, they're just super horny with poisonous cum. Getting too much cum splashed on you or ingested makes you super horny and addicted to the substance, but if you keep feeding your addiction, you'll eventually become another part of the undead and sex fiend horde.