Oops, it seems that some kind of terrible parasite has been studied in the laboratory and can parasitize humans, and it was somehow leaked.

Leucochloridium paradoxum, the green-banded broodsac, is a parasitic flatworm (or helminth). In nature, it parasitizes on snails, giving them erotic, thick, colorful and flashing parasitic tentacles, and uncontrollably climbs to high places to seek prey from birds, thereby producing the next victim. When it parasitizes a girl, you can imagine what an exciting scene it will create...