Note: This story was inspired by The Next Stage of Development by lambo69. Credit is due to that person for the basic idea; I hope my version is sufficiently different to merit considering it as an independent creation.
*
I was walking home from work late one misty spring evening, a Friday, thinking about the gorgeous young woman who'd checked out my groceries and how badly I wanted to watch her ass bounce as I fucked her from behind. I was passing through the park near my apartment building when I heard a bizarre buzzing noise above me. I looked up, and out of the mist there appeared overhead an immense metallic disc, its edge lined with a rotating, fluorescent blue ring. I was too startled to do anything but stand, stare, and try to overcome my lifelong skepticism regarding the existence of UFOs, and was only just starting to realize that I should try to make a run for it when I felt my body seized by some invisible force and lifted up from the ground. As I was pulled rapidly up towards the saucer, dropping my backpack filled with my groceries, a set of doors in the center of the UFO's underbelly slid open, bathing me in pale blue light as I lost consciousness.
I awoke in a large metallic chamber and found myself strapped naked to a sort of gurney angled at about a seventy-five degree angle. As I looked around, I realized that the room appeared to be a hemisphere, with no doors on the side that I could see, just a smooth metal surface. As I shook my head and began contemplating my fate, a seam appeared in the wall of the chamber opposite me, and a doorway opened where none had been before, and a figure entered the chamber. To my surprise, it looked pretty human, except that it was about nine feet tall and had dark blue skin, four arms, no hair, and glowing yellow eyes that regarded me coldly as it adjusted its red uniform.
"Greetings, human," it addressed me in clear English, its voice deep and somehow soothing, despite the utter terror that filled my body and mind. I am Nevoluskareth, Auditor Third Class for the Life Form Development Institute of the Interstellar Imperium. Forgive me if my speech is at all unclear, I have had only limited time to learn your primitive tongue." The creature smiled, revealing a mouthful of immense, sharp teeth, and in my fear I wondered if they would soon be devouring me, or worse.
"On behalf of the Institute I wish to offer my sincere apologies to you and your species. As you are no doubt not aware, your emergence into full consciousness was due not to natural selection, but rather to intentional intervention by researchers from our institute. Unfortunately, due to a clerical error by one of our data managers, who I can assure you has been sacked, the coordinates of your planet file were entered incorrectly in our master file. The result was that your species' guided development remained incomplete, as we were unable to find you for approximately seventy-five thousand years. A cursory investigation of your history from that point onward has revealed the toll of strife, violence, misery, environmental degradation, and psychological instability with which your species has been plagued."
I certainly couldn't argue with Nevoluskareth; human history had been pretty dismal. "My supervisors," the creature continued, "have advised me not to expend any more of the institute's resources on this project, wishing to simply close the case and leave you to your fate now that the planet has been recovered and the case can be closed, as you have fallen too far behind the other planets in your experimental cohort. I, however, consider this a callous response, and one inappropriate to a civilization as ethically advanced as ours, and so I prevailed upon them to allow me to introduce modifications to a sample of males on your planet so that they may help to realign your species with the path to ecological, social, and psychological harmony. I am pleased to inform you that after a basic physical and neurological evaluation, you are one of the males selected for this noble task."
The creature moved its upper left hand in a complex gesture, and a holographic display materialized in the air beside it, bearing a 3D representation of my body. "Let me go over the primary modifications I have made." On the hologram, my musculoskeletal and cardiovascular systems glowed inside my body as the skin turned translucent. "Your strength, stamina, and athletic capabilities have all been enhanced beyond normal human limits; you'll need these capabilities for the task ahead."
Next, the hologram zoomed in on my groin. "Your sperm have been repurposed, and now contain a potent mixture of specially engineered genetic material designed to recoup at a rapid pace the guided genetic development of which you have been deprived for so long. While your sperm will no longer actually lead to fertilization, they will infiltrate the ovaries of any woman into which they are introduced and modify their genetic material, such that any future young they spawn will possess these new and advanced genes. To facilitate the dissemination, or rather, the insemination of this material, I have massively boosted your semen production and quality, eliminated your refractory period, rendered you immune and non-transmissive of all sexually transmitted infections, and re-engineered your penile circulation, affording you the capability of effectively limitless sexual performance, assuming adequate supplies of food and water. Keep in mind that these modifications with significantly increase your requirements for these two key resources."
After that, the hologram shifted up to my head, and my brain glowed beneath my skin. "Finally, your endocrine and nervous systems have undergone special modification. Your central nervous system now radiates subconscious brain waves that are currently effective at a range of approximately one hundred meters, and you should expect your abilities to increase as you become more familiar with your enhancements. These brain waves, combined with the new cocktail of designer hormones you will now secret in aerosolized form, will have two key effects. First, and most importantly, every woman to whom you are sexually attracted will be willing and eager to engage in intercourse with you. Second, all persons you encounter will experience an attitude of benevolence, generosity, and cooperativeness towards you, such that it is unlikely that you shall ever require that crude mode of exchange you call 'money' ever again. Is this clear?"
I nodded slowly, still too shocked to really believe what was happening. "Good," Nevoluskareth said. "Very good. There are subtleties to these modifications, but you will learn them yourself over time. Now, then: your mission is to inseminate as many female members of your species as you can, to introduce this new genetic material into the human gene pool as widely as possible and thereby secure the salvation of your species. If all proceeds well, in time your species may even reach a stage of development at which they are judged eligible for inclusion in the Interstellar Imperium. Good luck, and May the Smile of the All-Benevolent Empress of the Interstellum Shine Upon You For Eternity." At that, Nevoluskareth delivered a strange four-handed salute, turned crisply on its heels, and left the chamber, after which I quickly lost consciousness again.
I awoke late the next morning in my apartment with a massive erection, and immediately assumed that I had been having a particularly outrageous dream. When I got out of bed, though, I realized that I had no recollection of actually coming home after my supposed dream. In addition, while my clothes were in a pile on the floor, my backpack, which I remembered dropping as I was lifted into the saucer, was missing. It also meant that I had no breakfast, as my groceries had been inside. I still wasn't seriously entertaining the reality of the UFO, but I was getting seriously concerned that I had had some kind of psychotic break. I resolved to head out and search for my backpack, and then maybe pursue some psychiatric assistance. But first, I was definitely going to swing by the diner, as I was really starving.
