Sexually Transmitted Zombie Parasites From Space

Last year's zero-budget movie Days of Darkness is a vital addition to the canon of zombie penis movies, as you'll see from our collection of the grossest parts. The last survivors of a zombie outbreak, holed up in a bunker, discover that the zombies aren't really classic old-school zombies, but rather victims of a sexually transmitted alien parasite, which turns infected women into lustful sex-maniacs so they can infect the men. But the infected men just have their genitalia fall off, rather nastily. Warning: clips are probably NSFW.