Editor's note: this story contains scenes of rough, reluctant, dubiously consensual, or non-consensual sex or scenarios.
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The world had just shaken off the last effects of the Covid-19 pandemic a few years back, and all was normal when the new virus hit.
All though it was related to the Covid-19, it was much less dangerous and very few got seriously ill. It was more like a normal flu basically, but equally contagious as Covid-19, so most of the world's population were infected at some point.
But, the worst side effect wasn't discovered before it was almost too late. Most men who were infected was infertile after the virus had left the body.
Due to the concealed nature of this side effect, it wasn't discovered until the birth rate plummeted and it was a real possibility that humans would be extinct within 10 to 20 years.
Despite all efforts nothing seemed to fix this side effect.
Nor vaccine or medicine seemed to cure the infertility and focus was on finding alternative ways to save humanity.
A joint international team found a relative safe and not complicated way to alter DNA slightly in semen, so they could artificially impregnate women to keep up the repopulation of the earth.
Because of the altering of DNA, it wouldn't all be half siblings.
But, they needed semen, lots of it. And it had to be uncontaminated and fresh.
So around the world there were set up harvesting sites and a massive recruiting effort was launched around the world to secure enough donors.
The downside was that you would have to sign up for a whole year and you would be locked up in the nearest facility. The upside however was that when finished with your tour of duty, you would be compensated equivalent of two years pay, pension and other benefits.
I had personally considered signing up but hadn't so far because of the long time away from family and friends. All though I had no wife or kids I was close with my parents and my group of friends.
But then one day an email dumped into my inbox with the header: "The world needs you!"
I opened the email and it read that I was next in line for evaluation and selection at the facility.
It was about 25 miles away from my town in an industrial estate, but transportation would be arranged to attend the evaluation and selection.
Even if there was a critical shortage of donors, they still had to have extremely strict criteria for acceptance of donors. The rejection percentage was high but considering that every donor could potentially father thousands of children, they had to be sure that he was of good health and good psyche.
If I was to attend, I had to say my goodbyes to family and friends before I left, as if I was approved, I would not see them for a year. The authorities would inform and compensate my employer.
Rent for my apartment would be paid on date all through my tour of duty.
Pick up would be the very next day at 9 o'clock in the morning and I had to accept or decline before midnight today.
They made it clear that I could decline, with no repercussions, but that the consequences for the human race was severe.
At the time I was in a dead end job and was looking for new possibilities and started to consider the "offer", and landed on a shaky yes.
After all I thought could go through the evaluation and selection process, and if I was not approved, I would have done what I could.
I went over to my parents' house and informed them. They were off course shocked, but at the same time proud as I was doing something that would gain all humanity. My friends reacted mostly the same way.
But when I got home my thoughts started churning in my head if I had made the right choice and because of all these thoughts I didn't sleep at all that night.
The next morning, I took a long shower and sat down to wait for the transport.
At 9 o'clock sharp the doorbell rang. I opened, and outside there was a cab driver asking if I was Richard O. When I confirmed he told me to lock up and come with him.
I took one last glance over the apartment and closed the door.
Once in the cab I felt like an out of body experience, it was so surreal, and all happened so quick and the whole thing had such big consequences on my life.
I got a bit cold feet and almost asked the cabbie to let me out.
Soon we arrived at the facility and I walked in to the reception.
"Name, please." said the woman behind the counter.
"Eeeh, Richard O." I stuttered and almost whispered.
"Come again?" she said a little louder.
I repeated my name and she smiled and said welcome and sent me further in to a waiting room.
It was full of young men, all looking down and visibly uncomfortable.
After a little while my name was called, and I was led into a mostly standard doctor's office.
"Hello Richard." the doctor said. "Please take of all your clothes and I will just have a check-up of your vitals and then you will be further evaluated in the next room."
He checked all the normal things, blood pressure, heart rate, reflexes, blood sample was drawn and so forth.
I was told to sit down in the examination chair. It was padded with brown leather seat and back-rest and had stirrups in shiny stainless steel.
The doctor said in a friendly voice as he pointed towards the stirrups.: "Please lift your feet up into these."
I did as instructed, but felt uncomfortable and exposed sitting there spreading my legs all naked.
Then I heard a snapping sound and saw him put on rubber gloves on his hands.
"Just relax, I will just check your prostate real quick."
He put on some lubricant on his right index finger and then applied some lube around my opening.
A finger gently slid into my ass and poked around a little. It felt weird, but not entirely uncomfortable. He retracted his finger and then wiped away the excess lubrication from my crack.
He put on new gloves and then proceeded to examine my genitals. Rolling each ball gently between his fingers and checking for lumps or any anomalies.
"This might feel a little intrusive, but I have to check size and form of your erect penis." the doctor said in a calm and unexcited tone.
The gloved hand grabbed my shaft and started slowly to move up and down.
To my surprise it reacted instantly and started to harden. After a short while he was happy with the erection and measured both length and girth.
After this thorough examination he thanked me for my cooperation and said I was to go out another door than to the waiting room and enter cubicle 04.
I left his office and was met with a white sterile hall with at least 10 doors. Still naked I was glad the hall was empty. I heard moaning and low screams from the other cubicles and wondered what I was to expect when I was in there.
I quickly found the door with 04 on it and entered.
It was not big, approximately 10x10ft, and there were two doors.
