In the cold vacuum of space, no one can hear you cum...

"Oh yes! Yes! Yes!" I cried as my body lost all control. My lover kept impaling me with his dick, stirring up my insides so good I just kept cuming for almost a full minute until he finally let loose inside of me. I closed my eyes and just held him close, relishing in the feeling of his seed spurting once more inside of me.

As expected though when he was finished he pulled out and stood up, almost as if he'd forgotten I even existed. He may think that our copulation was just his duty, but I'd fallen in love with him months ago. How he put up with his job I'd never understand, and I felt horrible about enjoying these mandatory breeding sessions when it was clearly just a job for him no matter how much I might wish it to be something more. Still, I decided long ago that I couldn't stop loving him even if he would never reciprocate it. I'd be all I could have for him and just enjoyed the fact that I was lucky enough to have the right genes for this project at all.

To try and lighten his mood I asked, "So, when did you go on your last jump?"

"You know you aren't cleared for mission information, Claire," he sighed as he went to his cabinet. In practiced repetition, he took his potency pill and readied his blood stimulant injection. As unfortunately difficult this **** breeding program was on the women who had the right DNA sequences he was the only male. It must be awful on him making sex just a rote task for work, not being able to fall in love, and worst of all the tax on his conscience knowing that the future of the human race rested on him producing a male offspring that would likely suffer his same fate, it was almost too horrible to contemplate. Not to mention the strain on his body at having to mate with at least three women every night.

"You don't need to share details," I said in a friendly tone. "I just figured talking about it would help you think and relax." He still looked doubtful, so I pressed on, "We still have a few minutes left in my shift."

He fingered his injector and sighed, "Yeah, maybe..." Then he set it down and walked back to the bed. I enclosed him in my arms and turned him about to massage his shoulders as he spoke. "I really thought I'd found the right one this time," he started. "He was horny and ****, but just too cowardly. If I hadn't stepped in the oni would have killed him and then everything might have been lost." I only knew a little about the vital mission that took him away each day before returning to his night duties here in the complex.

He was just beginning to really open up when the door chimed and a tiny young girl, only old enough to have had a handful of periods nervously stepped through the door. "Private Jezebel Isaki reporting for duty," she squeaked out like a mouse staring down a lion at us. Her face went beet red at seeing us naked in bed. "I'm sorry, Commander, I thought..." she began to get flustered.

"It's alright, Jezebel," he said standing up. "Claire was just leaving," he said offhandedly, before picking up his injector and pressing it to his thigh where it let out its characteristic pneumatic hiss.

I gathered my blue uniform up and was about to put it on, but then glared at the tiny waif of a girl in her pink uniform. She looked absolutely terrified, so I asked her critically, "How many times have you participated in night duty?"

"Um..." she clearly wasn't expecting a superior woman to be questioning her. "This is my first tour since I was recruited," she answered.

"Great," Kenji groaned. "A crying bleeder I'm gonna have to train from scratch."

Jezebel looked about ready to cry already from his words alone and I remembered being in her shoes only ten short years ago. I'd hated the first five years, dreading the duty week where I had to give my body up to each night since my positive compatibility test. It was only after my first conception that I realized what all this was about. It was deemed defective and aborted early on, but since then I've cherished and come to love these nights, the only ones I was allowed to spend with the Commander. Maybe I could help her from dreading these sessions as much as I had as well as giving my love an easier time doing his own duty. "Commander, requesting permission to personally train the private in her new duties."

He paused and looked at me critically, "Captain, you know the rules against fraternization."

"Yes, sir," I answered confidently. In order to get the most out of our night duty, any sexual stimulus outside of that was strictly prohibited. "This would simply be a voluntary extra duty to help facilitate the Private's training in her duty. Nothing more."

He thought for another moment and then waved his hand, "I'll allow it this once, but be sure you both leave this out of your report to High Command."

"Roger that," I answered happily and turned on the new recruit. "Now ditch that uniform, private."

She did as I commanded, and for the next hour continued exactly as I directed her, learning quickly the finer points of how to coax a fresh erection out of the man I loved as well as how to help them both enjoy their duties in facilitating conception. It hurt slightly having to watch, but less than imagining what was going to happen if I'd left. She only bled a little and seemed to really be enjoying the vigorous thrusts but the time he approached climax. She was a cute and obedient soldier and I wished I had had someone to guide me through what was expected at my first time like this.

"Oh fuck! I'm cuming!" he groaned out slapping his hips hard into his newest girl. I gritted my teeth and got dressed, but as I reached the door he stopped me saying, "Captain."

I turned and formally replied, "Yes, Commander?"

"Good work tonight, and I'll be putting in a request to authorize you as a trainer. That was a really good idea." he sighed and collapsed atop his newest happily exhausted consort still being injected with his semen.

"Thank you, sir," I said before saluting and leaving. Outside in the lobby waiting room was already his next charge, a buxom blonde sergeant that looked as thrilled to be here as if she was expecting a root canal. Being his first in the night had its advantages, namely being the recipient of his freshest sperm for the day, but I also had to leave seeing who else he was going to engage in coitus with next and feeling jealous. At least when I was last I could feel like I was replacing the previous girls, having to feel his load still filling me up and leaving looking on at his next charge had always made me feel like I just wasn't good enough.

This time I just smiled hoping that in the not too distant future when he did his duty I would be allowed to be there to at his side. Anything to spend more time with him and make his life easier would be worth it, even if I had to endure watching him fuck every cunt in the base. That way he'd know it'd be me who showed them the way he liked it, so in a way, everyone would be a copy of me. That gave me a smile as I headed back to my quarters to compose my after-action report and endure the lengthy medical evaluation. The only way today could get any better is if whatever still unknown mystical property that prevented so many of these breeding sessions from conception would fail and I could finally be one of the lucky few to earn the coveted Motherhood badge.