Around the world, sightings of unidentified flying spheres were cropping up. These spheres came in just about every color under the sun and had the unmistakable glossy sheen of latex. The spheres upon landing transformed into pools of liquid latex from which emerged a strange new life form. Squeaking with every movement, body parts jiggling uninhibited, with skin and hair made of latex they marched through the world with one primary goal. Assimilate the human race.
Their forms are frighteningly humanoid, albeit cartoonishly exaggerated. Large cutesy eyes and fat doughnut shaped lips set their faces framed with voluminous hairstyles in many different colors. Their torsos were like upside down martini glasses with large gravity defying breasts that featured doughnut shaped nipples. Their hips and buttocks were Pixar Mom fat with thick thighs and calves to match. Their most defining feature, however, were the instruments that hung between their legs: pristine, perfect, prodigious penises with fat nuts to match.
These beings would soon be recognized as Latex Futanari, a spacefaring race of nomad invaders who find suitable planets and assimilate it into their latex. These latex futanari possessed special latex semen that would transform their quarry into another of their ranks. Their bodies would either age up or down until they become 21 years old, and similarly they would go on to transform more people. They would rebuild society in their new latex image, embracing polyamorous sexual relationships, monogamous romantic relationships, and the breakdown of prudishness.
The futas marched, ready to begin their invasion. They would assimilate this planet, just like they have before five times by now. All humanity can do is delay the inevitable.