SEXUAL PARASITE: KILLER PUSSY

Sexual Parasite: Killer Pussy is a 2004 Japanese horror/Pinku Eiga film directed by Takano Nakano.

A group of explorers travel to the jungle in Botswana, Africa, in search of a mysterious creature. What they find however, is a fish-like creature that according to the natives is very dangerous; the explorers then decide to store it inside a foam cooler. When the witchdoctor of a local tribe discovers that the scientists are trying to take the creature away, he becomes very angry and tries to attack and kill the creature, this causes one of the researchers, a woman, to sit on the cooler to protect the animal. All of a Sudden, the creature breaks through the cooler entering the woman’s body, apparently through her genitalia.

One year later, while driving around, a group of teenagers arrive on an abandoned building in the middle of a Japanese forest where they find a frozen woman inside a freezer. The woman happens to be the researcher that was attacked by the creature in the jungle, but the teens don't seem to care about the woman and leave her in the freezer. Later on, one of the girls is taking a bath inside a hot tub and is approached by the now unfrozen researcher who enters the tub and attacks the girl releasing a tadpole-like creature inside her mouth. Now infected and possessed by a parasite, the girl goes back to re-join her friends. But, the parasite uses her body to kill via sexual intercourse and attempt to spread its offspring to others.