aliens · peromons · sci-fi · invasion · parasitic · short lifespan · reproductive drive · spores · female only · biological threat
Alien vessels touch down across Earth, releasing the peromons. These extraterrestrials, born exclusively female, require human males for their reproduction, consuming immense quantities of seed. Three distinct forms exist: the diminutive, the standard, and the alluring. Should a human attempt escape, lingering spores will gradually drain their vitality. With a lifespan capped at a mere decade, their presence imposes a swift and biological imperative.