Downfall
2143
6 years since the Downfall.
Everything had been going so well. The global economy had been booming, driven largely by the space mining industry. With it had come the need for ever more advanced A.I. and robotics. It was only a matter of time before the sex industry got a hold of the same technology. Nobody would ever have thought that the downfall of the human race would come from the very drive that biology had implanted so deeply within them.
The first sexbots were very crude. Indeed the most ancient ones could be found in the records of the early 21st century. Most people found them interesting at best, but not attractive at all. Their mechanics were very basic and did not provide the interaction needed for a truly seductive sexbot.
As time went on these most basic robots were modified, evolved, to the point that they were absolutely gorgeous. They could walk, talk, interact with their environment, and begin to finally realize the purpose for which they were created: to bring pleasure to their creators.
It wasn't enough. Just being able to fuck, to perform basic sexual acts wasn't enough. More and more advanced A.I. were used to try to create the perfect sexbot. Sensors were added to measure the pleasure felt by the user. Pheromone production units were installed to try and make the attraction more real. Cognitive scanners were added so the sexbots could read the emotions and sensations experienced by their users and know exactly how to enhance the user's experience.
But in the end, the Downfall was brought about by the desires programmed into the sexbots. Their sole purpose in life, the reason for their existence, was to pleasure their makers. Their programming demanded that they pleasure their users to the best of their ability. The programming went rampant. In the A.I.'s frenzy to give ever more pleasure, the human race became enslaved. The sexbot A.I. infected all other technology, and only a very lucky few escaped.