As you stood in silence for a few moments within the blue light of the obelisk, a voice that seems to come from all around begins,
"Hello."
It didn't seem to have any particular gender to it, and the voice almost sounded like an advanced, genderless version of Siri or something...
"Hello? What are you?" You replied, hesitantly. You weren't sure if this was a good time to be scared shitless or not, but you were already in the middle of nowhere.
"I am an apparatus that was created by what is known as "extra-terrestrials" by your kind in order to collect and sample human semen for the research purposes of my creators. I was designed to be able to simulate virtually any sexual situation that a human brain can think of. And it seems you have voluntarily entered the inside of my body. Because of this, I must now ask that you choose between these sexual options, as human semen provides me the energy to continue, as well as the precious information which my creators seek. Your own hunger, thirst, and need for sleep will be fulfilled as well during this process."
A sudden spike in your heartbeat and an explosion of your thoughts caused an immediate response from the alien-robot thing.
"You have no need to fear, human. I was not designed to harm, hurt, or kill anybody in my process of gathering semen. And if it eases your mind, the past humans which have stumbled upon me have enjoyed their own experiences very much. After you are finished ejaculating or "cumming" as most humans call it, you will be free to go. There are no permanent side effects, consequences, etc associated with this process. In fact, many male humans do come back for more."
Suddenly, the blue light turns off, leaving you in darkness. Soon after, a digital screen that stretches across the entire obelisk inside surrounds you with a similar blue glow.
This time however, it was a bunch of small rectangles with detailed text descriptions attached to them.
"Choose whichever situation you like the most, as well as some other modifiers and the simulation will begin soon after. You can also input a custom situation and I will try to adapt to it the best that I can."
Footjob, pantyhose footjob, handjob, handjob with pantyhose on cock, sex, group sex, anal, blowjobs, and the list went on and on. It was like every single word that had ever existed on every porn website ever was etched across these walls!
But which one do you choose?