Seedmaker: Alien Stallion
Copyright© 2025 by Gigi Potemkin
Chapter 1
Erotica Sex Story: Chapter 1 - The hottest woman on Earth mates with one of the Universe's strongest breeders!
Caution: This Erotica Sex Story contains strong sexual content, including Ma/Fa Heterosexual Fiction DomSub MaleDom Rough Spanking Cream Pie Facial Lactation Masturbation Spitting Squirting Tit-Fucking Size
It’s been thirty days since I had been “abducted” by this weird alien species and I haven’t yet seen all the stuff they so emphatically promised me.
I was getting bored and impatient, indeed, though my material comforts were hardly to complain about. Actually, an “abduction” wouldn’t be the best way to describe what they did to me; it was more like, uh, being a valuable asset in a scientific experiment with no deadline in sight. Something like that.
“So ... you’re asking me to be your slave?” I asked them a month ago, when the opportunity was presented to me by their weird “messenger.”
“No.” Came the voices from the black box; many different voices all in one, talking in a weird, mechanical unison. “You’ll be free to do everything you want ... within the confines of the mansion we prepared for you.” They continued. “You will have only one obligation: birthing as many children of our studs as you can. This will be done for as long as you remain fertile, and you won’t be able to leave the compound any earlier. As soon as you become fertile again, you will be impregnated. You will have as many children as your body can allow it, and once you cannot give birth to any more children, you will be returned to this Earth with all the rewards we promised.
In my head, I made the calculations. “Ten million dollars?”
“Yes.”
“Per month?? As in ... literally every month until I get back?”
“Yes.”
“And inflation...”
“That will be taken into account.”
“Fuck.” The number was too great to be believable. “You say that, if I spend ten years in your, uh, ‘breeding program,’ you gonna pay me well over a billion dollars in today’s money?”
The beings sounded impatient and a little insulted in their replied: “you think your money means anything to us. We could offer you a billion dollars a month if that wasn’t too suspicious for your society. We strive to return you with as little raucous as possible. The least attention we bring to ourselves—to our very existence—the better.”
“Oh, wow.”
“Do we have a deal?”
I had to hold back the urge of laughing at their faces ... well, at their “voices.” It was just too unbelievable an offer for me to take at face value. They had just appeared out of nowhere, exactly in the very second I’d turned eighteen, and made me that ludicrous offer out of the blue! There was something fishy there, and I still suspected it was some sort of prank from my girlfriends or something.
“Why all the trouble of asking? If you’re so powerful as you say...”
“The experiment doesn’t work if it’s conducted by forced.” They guessed the question straight out of my lips—or maybe I was just too slow, who cares. “We need strong babies. Healthy babies. The strongest, mightiest specimens of your species, and that doesn’t work if their conception and pregnancy has even the slightest twinge of stress.”
“Mm.” I pondered. “Makes sense.”
“Do you accept out terms, then?”
I looked to the black box, smirking like I wasn’t born yesterday.
“Show me. All this that you promised. The mansion, the estate, the luxur-” boom! With a loud snap and a huge change in—I don’t know, “air?”—around me, I was teleported to paradise!
There was no other way to describe it: a fucking paradise. “Wow.” Before me laid huge, sprawling prairies and hills of unmitigated beauty; castles, villas, and mansions tailored for my deepest personal taste; thousands of servants ready to do my every bidding; countless luxuries and comforts that would take me years to describe in detail (and I’m not that patient nor that talented with words, if you haven’t noticed already)!
With another thud, I was put back in the drab, dreary town I lived in. My four-thousand-a-month income as an OnlyFans-Star-slash-fitness-instructor was nothing to scoff at, but it certainly paled in comparison to the prospective of becoming a billionaire while living in massive, luxurious villas while being fucked by (what they promised to be) amazing studs filled with virile power.
Before they got the change of changing their minds, I was in, and quickly I found myself transported to the that paradise god-knows-where in the universe.
“We will come back in thirty days.” The voices in the little box said. “That will be our final confirmation. If you’re willing to proceed, you will breed with our first specimen. If for any reason, however, you feel that’s not your calling...”
“Oh, it is my calling! It is!” I said while chugging that fancy ass glass of champagne, dripping it all over my magnanimous bosom (more about ‘em later, hon).
“In any case, know that, if you change your mind at any point in these thirty days, then we will return you to your Earth. You will receive no compensation whatsoever.”
“Oh, well.” I looked around, a big, dummass smile in my face. “I think I can live with that.”
Worst-case scenario, I got a one-month free stay in the most gorgeous place in the universe.
Fast forward a month, well, and there I was, tapping my feet on the floor, impatiently waiting for the return of the little black box. Rows of dickless servants and flat-chested maids pestered me with their overzealous attention, and I had ordered a few of them replaced due to just how annoying they could be some times.
“Would our lady like some...”
“No.” I crankily replied. “Please, go away. If you can, call those masters of yours and tell them I am waiting.”
“Mm, yes, my lady.”
“I’m tired! And I’m bored!” I laid down on the luxurious divan, rubbing my huge thighs against each other, feeling the immense fire of a pussy that hadn’t got any action for over... “a month! A month without fucking, damn it!”
That had also been, indeed, one of their conditions; the most cruel and ruthless one, and the only condition that seriously tempted me to reconsider my time in that paradise. “You mean I can’t bang for a month?”
“Negative. You will only breed with our selected specimens. No forms of sex are allowed before that. A woman’s fertility is at its peak after a long period of abstinence. That is another condition that must never be broken.”
“Well, can I at least touch myself?”
“Negative.”
“Oh, come on!”
“You can reject our offer if you don’t think you can handle it. We will only demand your abstinence for the first month. After that, you will be breeding every day you want, regardless of whether you’re pregnant or not. In fact, even when you’re pregnant, we strongly urge you to continue having coitus, for the sensations will be great for the development of the babies.”
I raised an eyebrow, already wondering what perverted things they had in store for me. “How can you be so sure these, uh, ‘sensations’ will be so good? I’m a very demanding lady, you know.” I can’t deny: I’d lost my virginity when I was fourteen, and I was the aggressor back then! Ever since, I haven’t stopped fucking with every great piece of ass and muscles and cock that crossed my way, and by the time I was eighteen, I had already collected over two hundred cocks under my belt.
What could I say? I was a tireless, raging nympho with the appetite of a goddess—and certainly a body to match!
The beings simply remained silent for a while before answering in their deadpan, serious-as-hell tone: “you are no match for our breeder. No woman ever was, and you certainly never will be.” Before I could say anything and defend my honor (oh! How dare they say something like that too me? Me?! A prime fucker and avid dick-breaker? A woman who’s crushed the pelvises and tore the penises of over five hundred guys? How dare they?!), they interrupted me: “you think you know pleasure. You know nothing. When our very first breeder starts working with you, you will beg you had never known pleasure so intense or orgasms so powerful. More than anything, you’ll be forced to be honesti with yourself: you not the strongest, nor even the prettiest woman we have gathered from this Earth. Though you are certainly amongst the top 50 women of Earth, you don’t even qualify as the top 25, so we will be giving you our weakest, most scrawny men, and then you can work your way up from there, if you so desire.”
There was a sound of buttons being pressed as those beings checked some data in their mysterious rooms, and I munched on those words, not knowing how to take them. «The fuck? Not even the top 25 prettiest??» I contemplated, barely realizing that being the fifty best-looking women on Earth was a hell of an achievement. «Well, fuck those bastards! If they think I will... » The box interrupted my thoughts with a large boom, however, and my tits stiffened as the beings continued:
“Indeed, you’re the weakest prospect we have found so far, after having collected 22 of the 25 most gorgeous and fertile ladies on Earth. Even they have fallen unconscious with orgasms after a mere thirty-minute pounding of your studs, so you are not expected to last over five minutes with even the weakest, pettiest of them.” I heard more buttons being pressed, and my heart beat hard as I feared that those mystics beings might actually reconsider their offer. “In fact, the first breeder you will have isn’t even one of our official breeders, but merely a ‘test toy’ to see how strong you are. We are accepting ‘samples’ from him, of course, but have in mind that we don’t have high expectations neither for you nor for him.”
I was biting my lips and crossing my legs as I heard those nasty words. “‘Samples,’ you say?” I asked, and they coldly replied:
“Yes. Babies.”
“Fuck.”
“Do you accept our offer?”
Hell I was—though also a little, you know, aggravated by everything they said. «’Not even the 25 prettiest’ my ass!» I kept angrily repeating in my head as I worked out religiously every single day in the massive gyms they had installed in all those mansions. “Fuck that! I’m gonna show ‘em just how gorgeous and fertile I am!”
Every day I crafted my body to be an obscene testament of fertility and female power, and the results had been showing even as earlier as my fifteens, when my already-big breasts grew to the obscene dimensions they eventually became famous for.
From any angle one looked at, I was a knocker. My height was already something to be envied by even the world’s tallest supermodels: at 6’2ft-tall, I was hard-pressed to find dudes whom I didn’t have to look down to! And that was just the beginning of my “problems” (call these the “problems of the truly blessed,” if you will): second of all, I was ripped. Like, I had always been a very buff and muscular for a girl my age, but in my teens I gained so much muscle I was actually thankful for my freakish height, which indeed allowed me to maintain my distinctly feminine profile.
Even with little gym, I had a four-pack set of muscular abs (that quickly grew into a six-pack after I started working out). My legs were wide monstrosities filled with veins and arteries as thick as fingers, and every time I walked one could hear my muscle fibers hardening and flexing—the swollen, rock-hard muscles of thighs which could tear through dozens of watermelons in sequence.
Indeed, one day my friends decided to add a 20-pound barbell-weight between my thighs and challenged me to test my strength. I flexed my thighs and made them swell immensely on the metal object, and soon enough the barbel was making tearing, rumbling noises as it bent under the pure power of my muscles. I was sweating and feeling my six-pack ache after half-a-minute of that gratuitous display of power, but when all was said and done, we all saw the barbell bent until both weights were touching.
It was official: I was a woman strong enough to bend metal in her thighs! “Who wants to see some fucking power!!!” I flexed like a gym-rat monster in front of the mirrors of my private gym, watching my shoulders bulge, my tits throb, and my arms swell to huge, vein-ridden proportions. I had biceps harder and bigger than probably 90% of dudes, and only incredibly well-endowed, professional bodybuilders were able to beat me in sheer thickness, hardness, and overall muscle definition. “Fucking shredded!”
I flexed my biceps, and they danced in the reflection. Beautiful veins covered them, and I kissed and licked them while spotting the huge camel toe that appeared in the tight cloth of my yoga pants. My pussy seemed swollen after a month of abstinence—the long I’d ever been, obviously, ever since losing my virginity. «Holy shit!» I sighed, fighting the urge to finger myself and make out with my own literal reflection!
My feminine features were just as pronounced as my masculine ones—and by that I mean my breasts and my ass, which were as huge as my waist was thin! My massive milk-makers and my huge milk-taker, all primed for only the biggest, most well-endowed men to fuck. «I hope these ‘breeders’ they have are really even half as good as they make them up to be, otherwise I’m gonna be so massively disappointed!» I flexed my chest, and my gigantic knockers bounced up to my chin, pushing and pulling my torso in their aggressive, heavy motions.
Of my 300 pounds of weigh, fifty probably went to my breasts, and another fifty to my buttocks—almost all of it, naturally, pure muscle!
Two huge stains on my chest threatened to ruin those clothes, but that couldn’t be helped; my tits were so fertile they could never stop lactating, especially when I was aroused, and every intercourse I’d ever had ended up in a milk bath drowning the bodies of my lovers, with me either half-assedly apologizing to them or demanding them to suck my tits dry and relieve me from a lot of that burden.
“Fuck!” They were almost always shocked at my taste. “Your milk is thick!” Yep: thick, creamy, and sweet. I was really the full package!
“Then why don’t you drink that sweet milk, baby boy, and relieve momma of this huge weight in her chest?” In the rare instances when my chest had been fully dry, I eventually discovered that their “natural” size was about a double-D—two massive knockers so hard they looked like giant muscles flexed on my chest.
It was my milk too that gave them their smoothness and “bounciness.” Sometimes, I felt only the sky was the limit for their size. «Fuck ‘em babies, they’re huge!» I always said after a few days without sex, feeling my knockers like two giant weights testing the strength of my back and my upper body. «Fuck, I need some fucking release!» I almost always found such release in men, though it wasn’t uncommon for me to literally milk my tits dry on a bathroom sink, squeezing them with my elbows and seeing the sink literally overflow with milk—in a regular day, I could easily produce over ten gallons of the creamiest milk anyone has ever tasted!
«Fuck!» I looked at my gorgeous body in front of the mirror, seeing how my breasts leaked even through my thick bra. «If I wait any longer, these babies are going to explode!» Almost as if craving for my attention, however, my glutes flexed on their own, and I looked down to my massive hips to see those power, mare-like muscles rumbling with so much power. “You want some good dick too, huh? Can’t blame you!” I made those beauties bounce, and their extreme hardness could be heard even from the other side of the gym. “Ass so big it can fit only the biggest, fattest of cocks! Mmph!” I sighed. “Wonder if these ‘aliens’ have it: a cock worthy of my ass!”
Back on Earth, I had to contend with ‘decent’ studs and their mega 9-, 10-, or 11-inchers. The closest that had ever got to making me feel full—to making me feel like a fucking woman!—was a jaw-dropping 13-incher with the body of an Adonis and the stamina of breeding bull.
God, he fucked my body for so many hours that his preliminary alone would be the same as a sex marathon for most other people! God-daaamn, he fucked me and pounded me in so many positions that, when he was done to me, I had the vivid image in my head of being fucked by a battalion of a thousand Spartan soldiers.