Gwen Tennyson and The Impregnatrix

Sometime later, several months later, Rob was lounging around in one of the many, many homes he now owned doodling away in his sketch pad. The house around him (one of many in the private neighbourhood the majority of his harem now lived in) was absolutely spotless, but he had nothing to do with the cleaning. Nor did he have anything to do with the rearing of his two daughters, recently born, who were in the other room. Nanny duty was left to the simulacrum conjured by Zatanna and the others. Rob did not have to lift a single finger around this house, or any house he owned. He simply did whatever he desired while his slaves did all the work and he got to have all the fun.

What was the point of slaves otherwise?

Speaking of, the sole **** of this household and the mother of Rob’s two twin daughters (well, two of his daughters and one pair of twins) was finally home after a long day at her new job, as Gwen Tennyson entered, the ravishing redhead looking both sexy and professional in her sweater vest, miniskirt, and tights.

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Even more remarkable, with her fat tits and even fatter ass straining against her garments, the ravishing redhead was otherwise perfectly curvaceous and slim. No one would be able to tell she only gave birth a few days ago. Another miraculous effect of Rob’s wishing and his Queen’s awe-inspiring omnipotence.

Gwen barely had time to place her satchel down before Rob pounced on her. Without puss for the whole entire day, this Rob was pent up and horned up, scooping his one-time student turned obedient fuckdoll into his embrace and making out with her. Gwen squealed in shock at first, but quickly submitted to her Master’s whims, all too used to his lecherous desires, submitting her body to him. The naughty body he gave to her via Dr. Mercy’s treatments. The fat-titted bimbo body she only had to make her man happy.

“How was your day, cutie?” Rob asked after slobbering all over Gwen, possessively patting her ass with a bear paw hand.

“Exhausting. Miss Asami and Miss Medarda can be a real pair of **** drivers!” Gwen had recently accepted a position at Sato Technologies, working to help secure government contracts and business partners for the restructured company. “I swear I spent more time between their legs than at my desk.” Gwen rolled her eyes and gave a weary sigh. “How about you, sir? How’re Jen and Gen?” The names were both homophones of each other, and while it was certainly bound to cause confusion, Rob was dead set on keeping the Tennyson family naming conventions.

“Oh, they’re fine.” Rob said dismissively. “I mean, I’m sure they’re fine. They’ve been with the nanny all day.” Hands on her hips, Gwen gave Rob a look. “Hey, we both know I’m only a father for the fun parts. Now!” He gave Gwen a stiff smack to the rear. “Why don’t you get your cute little butt to the kitchen and grab me a beer? I’ve got a gift for you and I can’t wait to see your reaction.”

Despite Rob’s boorish, lazy attitude, Gwen couldn’t help but bat her eyes and smile affectionately at her Master (or maybe that was the reason…). “You’re lucky you’re so damn charming, sir.”

“And because you know most of my gifts involve me fucking your brains out!”

With that promise out in the open, Gwen happily fetched a beer and several snacks for her greedy, corpulent Master, arms thrown around him as the two cuddled together on the couch. Held within his thrall, Gwen did not need a gift, or a job, or even validation. So long as she continued to be a hot little slut for her beloved Master, she would be happy.

But a gift every now and then was a nice treat, too!

Rob presented her with a black matte chest - no bow or wrapping - that Gwen was quick to open, shocked at what was laying inside, resting on the plush velvet interior. It looked like a large watch attached to an even larger and clunkier wristband, but Gwen knew this was no watch, or anything so ordinary. The dial of the watch and the bracelet were in differing shades of blue, while the digital interface of the watchface took the form of a pink heart. With wide eyes and great trepidation, Gwen lifted the device from it’s bedding.

“An Omnitrix!?” She exclaimed, looking back and forth between Rob and the alien device. “Where on Earth did you get this?”

“C’mon, Gwen. You know me. There’s nothing I can’t do.” Rob said with a smirk, Gwen continuing to stare in wonder at her owner and the object.

“Wait…” Gwen’s face screwed up in thought, trying to come up with why this was her gift. “Do you want me to do the ‘alien superhero’ thing like my cousin? Because, honestly, I don’t know if I can handle being a superhero, office worker, mother, breeding bitch, and pleasure slut all at once.”

To be fair to Gwen, that was a lot for any one woman to handle. Fortunately for her, though, that wasn’t the angle Rob was aiming for.

“You’re wrong on two counts there, Gwen.” Rob explained, gently stroking one of her slender stockinged thighs. “I have enough superheroes in my harem that I’m not aiming for any more. But your other mistake is assuming that’s an Omnitrix.”

At that Gwen raised an eyebrow. Sure, it looked different enough from the device she was used to, but not enough that she could decipher it’s purpose. “Okay then, so what is it?”

“That’s a one-of-a-kind Impregnatrix! Designed to help bolster the population of alien races that don’t see the value of casual, baby-making sex.” Before Gwen could fully process what Rob had said, he took the Impregnatrix and slapped it on her wrist, sealing her fate. Omnitrix-family devices bonded with their users, permanently (except for when they didn’t), and so Gwen was now shackled to the device and Rob’s perverted designs.

Gwen leaped out of her seat in shock, staring once again the Impregnatrix, as it’s dial spun on it’s own, integrating itself with Gwen’s DNA and booting up it’s systems. Within seconds, the heart symbol on the screen glowed warmly, inviting it’s user to select it’s first thicc, fertile alien babe.

“You’re going to be my one woman alien repopulation program!” Rob boomed with a beaming smile, practically salivating at what was about to happen. “So spin the dial, slam it, and turn into a sexy xenobitch already!”

An uneasy grin came to Gwen’s face, as she stood more or less paralyzed. While she loved Rob, bound to him heart and mind, and actually enjoyed the mind-melting pleasure of being bred by his wonderful cock and his thick, addictive seed… but she wasn’t entirely sure about becoming a broodmare, in all but name, forever pregnant in order to fulfill her Master’s desires and the purpose of this Impregnatrix.

But then Rob saw the look on her face and pouted. “Ah, c’mon Gwenny, don’t give me that face.”

“Sorry, sir.” Gwen bowed her head in contrition. “You know I love and will literally do anything to make you happy, because I’m a good girl and good girls are happy, obedient sluts…” Gwen trailed off, finding herself wearing a dreamy, submissive smile, an entirely **** expression. Her brain was buzzing, she felt like she was high. It just felt so good to say aloud what a happy, horny, slutty, obedient good girl was! “Ah - anyways… I just don’t know how to feel about constantly being pregnant, even if it's only a three month period every time.”

“Oh, is it just that?” Rob asked, casually. “Don’t worry babe, already thought about it. When I knock up one of your alien forms, your default form isn’t affected. Meaning I can put a baby in every single form you now have access to, all at once!”

Gwen was actually floored by Rob’s foresight and thoughtfulness, something that did not escape Rob’s notice.

“Hey, I may be a perverted slaver; a greedy, lustful, grasping, gluttonous hedonist that does whatever I please to you and my many other sluts…” Rob stopped himself. He had forgotten to add “egotistical” to his long list of sins, seeing as how he could describe himself and his exploits all day long. “But I do care about you and your wellbeing. I taught you that being a slut is fun, so I would hate to **** you to do something so uncomfortable.”

Standing there with Impregnatrix still latched to her - all but fused to her - Gwen pressed both her hands over her heart, smiling and blushing at the kindness of her Master.

“Well, what else can I say to that, but…” Gwen hit a button on the Impregnatrix, causing the dial to raise out, forming a squat cylinder that spun on it’s own axis. A holographic preview of the alien babe Gwen was about to turn into projected itself from the top of the cylinder, changing from image to image as Gwen rotated it and cycled through her new alien forms. When she found one she thought would make for a fitting maiden voyage, Gwen raised her free hand into the air, intending to slam it down on the raised dial. “It’s… bimbo time? Slut time? Xenobitch time?” Unsure of herself, Gwen looked to Rob for guidance.

“We’ll work on that later. Right now, I’m just dying to see how you’ll look!”

Wasting not a second time, Gwen slammed her hand on the cylinder, depressing it and restoring it to it’s default state, resulting in an eruption of pink light that consumed Gwen. Gwen’s figure stood out in silhouette against the curtain of light, black on pink, where Rob could see her transform, as Gwen grew taller, thicker, and fierier.

When the light receded and the transformation finished, Gwen now seemed to be made entirely of blazing, tangible energy, clad and contained in a skintight red suit that highlighted her tits and bubble butt perfectly. Cracks and fissures were spread across the suit to show off plenty of skin, some looking strategic in their placement, some purely for eye candy, but more looked like the suit was struggling to contain the heat coming from Gwen’s body. The cracks in the suit and the glowing plasmoid matter beneath gave it the appearance of embers or magma. A skull-like face wreathed in flames was the only uncontained, unsheathed part of this form. In another time and place, the form was given the moniker “Heatblast”, but that was hardly sexy enough for Rob’s designs, so it would be better to call her…

“Hot Stuff!” Gwen declared in a deeper, huskier voice, an exuberant outburst entirely of character for her. Because of course you had to tell your audience what the form was called, even in the most non-diegetic way possible.

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“Oh my god!” Hot Stuff!Gwen immediately shrank in response to her outburst, her normal personality asserting itself. “Did I just declare what my form is called like my cousin? And did I make my name a lame, obvious pun? This is so cringe I could die…”

Fortunately for Gwen, there would be no time for dying tonight, as she was immediately swept off her feet by the man of her dreams. And by that, Rob ran into her, full bore, tackling her to the ground, unable to contain his lust any longer. He pinned the fiery alien babe to the ground and almost immediately began to fuck her senseless, driving his cock into her literal fire crotch.

“MAAAAAASTEER!” Gwen wailed in surprise and pleasure, that turgid, thick dick ripping into her with abandon. Her body - literal burning hot plasma - flared with a carnal heat, growing hotter and hotter as she was fucked, the flames that crowned her head exploding in a towering plume that flickered across the hardwood floor of their home. Somehow, nothing ignited, even as the flames licked at furniture and clothing.

“Why does it feel so goooooood!? Why does it feel better than when you normal fuck my sloppy, slutty puuuuussssssy!” Gwen moaned, already squirting and cumming from her newly transformed xenocunt. Her red hot body began to fully incinerate the red containment suit, leaving her only in tattered shreds. “OOOOH FUUUUCK! I can feel your big, mighty cock slamming into my cervix! So big, it’s throbbing, it’s pulsing, it wants to breed me so bad! Your cock wants to breed me, pump me full of babies! You love this hot, needy alien pussy, don’t you, Master!?”

“Damn straight I do! This is grade-A, stellar, out of this world xenocunt, and I would fucking know better than anyone how could alien pussy is!” Rob had Gwen’s body folded in on itself, pressing his full weight and frame on her, basking in the warmth radiating from her form. Rob had plenty of foresight when he had Wanda make the Impregantrix to build in safeguards so he and his surroundings wouldn’t be hurt by aliens like Hot Stuff. His skin was flushed and reddenned, but pleasantly warm. More than warm. Ploughing Hot Stuff’s slit, forcing her into a mating press, it was like taking a great, big wool blanket straight of the dryer and being enveloped by it… while also fucking a watermelon fresh out of the microwave.

Despite how much Rob was enjoying Gwen’s slutty faces and exaggerated moaning, and as luxurious as it was to embrace her burning body, he couldn’t last forever. He was a busy man and he had a lot of alien babes to knock up today. He exploded inside Gwen’s red hot snatch, a geyser of seed flooding the depths of her womb, instantly and immediately guaranteeing that Hot Stuff would be carrying a baby pyronite for her Master.

As an end result, Hot Stuff was a hot mess, huffing and puffing on the floor, their suit a ragged mess, their overheated body evaporating the moisture in the air and bathing her in a cloud of steam. Her chest and groin heaved in time, expelling excess amounts of cum that oozed into a puddle, while the breeding brand seared itself onto the plasmoid body of the fiery alien, it’s lurid pink light outshining the blazing orange.

And then, all of sudden, the Impregnatrix began to beep rapidly, emitting another burst of light in short order. When it faded away, it was Gwen Tennyson herself laying on the floor, no worse for wear than she was when she first transformed. Her clothes were intact, she was not sweaty or stained, hell, she was hardly winded even after the serious pounding Rob gave her. Going from exhaustion to not in the blink of an eye left her startling and breathing. She even lifted up her shirt to reveal no brand present on her belly.

“Told you that everything would be okay.” Rob explained with a smirk, offering a hand to pick Gwen up. “Hot Stuff is pregnant, not Gwen Tennyson. You’re largely unaffected by anything that happens to your alien forms.”

“I’ll say.” Gwen stated in wonderment. “You fucked the absolute shit out of me and I don’t feel a thing, even if I can remember the three orgasms you gave me.”

“Only three? Man, I must be losing my touch.” The two shared a brief laugh before Gwen gave him a saucy look.

“Nah, you’re just pacing yourself.” She opened up the dial again, rotating it to reveal the numerous alien forms she had access to at her fingertips. “Because look at how many sluts you have to knock up. Sluts like…”

Once more, she slammed down on the Impregantrix, consumed by light, and transforming before Rob’s very eyes. This time, Gwen grew exponentially in height and mass, obtaining a sculpted, muscular physique. Literally sculpted, as this form was made entirely out of pale green gemstone, from her pouty lips, to her heaving breasts, to her thick thighs, to her puffy, needy pussy.

“Roadhead!” Roadhead!Gwen roared as she revealed herself in all her Amazonian, glittery glory, ripping off the clothes the Impregnatrix had given her in one move, revealing her luscious body and posing before Rob. “I may have a hard, jagged exterior, but you know I have a soft, gooey centre that you can melt with ease, Master~”

While Gwen may have had a hard exterior in this form, her insides weren’t the only things that were soft, as that titanic bust and monstrous ass were perfectly plush and pliable. As was her pussy, nowhere near as hot as Hot Stuff’s, but where it lacked in raw heat, it made up for it in how tight it was. Gwen’s silicon pussy clamped down on Rob’s engorged cock and never let go, as she also threw her muscular arms and legs around his broad back, squeezing him as close to her as possible.

“Oh, YES!” Gwen bellowed, as her Master’s rock hard cock pistoned into her rock hard body. “You always get so intense and brutal during breeding sex! Why was I ever concerned about this? This is fucking awesome! I get my brains fucked out on the regular and I don’t even have to carry to term! You’re the best, Master! You know how to treat dumb sluts like me right!”

By the time Rob finished up with Roadhead - depositing a new diamond to be forged in the pressure chamber of her womb - and Gwen reverted to her human self, she was still in the throes of an orgasm, with her limbs still locked around Rob (tighter than before). So Rob was still on top of her, his wet, semi-erect cock pressed against her stomach. She could feel the heat of it blare through her clothing.

With a shaky smile and shuddering breath, Gwen asked, “Are you thinking what I’m thinking?”

“Um, yeah! I’ve been telling you I’ve been wanting to go nuts with this thing all day!”

“Well, I was thinking more…” with a sly wink, Gwen said, “Montage!”

“Handjob!”

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“Porn Bot!”

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“Googirl!”

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“Gwenwolf!”

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“Cold Comfort!”

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“Quickie!”

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“Wildslut!”

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“Dommy Mummy!”

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“Menage a Moi!”

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Over the evening, from dusk to dawn, Gwen cycled through her myriad of forms - a four-armed red-skinned Amazonian; diminutive robot girls dressed like K-pop star; a sleek, black-skinned cyclops with plug-tipped tendrils; an alien plant girl and an alien vampire girl and an alien ghost girl and an alien giantess girl! - and Rob bravely dove into every single pussy put before him, no matter how exotic or daunting, over the moon to indulge his breeding fetish, his monster girl fetish, and spend some quality time with one of his favourite girls.

By the end of the day, Rob probably had another forty kids on the way, and he had yet to have Gwen use the Impregnatrix’s scanning function to add new alien DNA to it’s systems. She could use it on Ahsoka, Barriss, Amelia, Talon, Ney-Ney, Liara, Starfire, and Megan to add Togruta, Mirialan, Felinix, Twi'lek, Na’vi, Asari, Tamaranean, and Martian forms to Gwen’s line-up. And that wasn’t even getting into the fact that Rob could breed his alien daughters when they grew up. He should have conjured up the Impregnatrix sooner, because the sky was the limit with it.

But there was one last question that Gwen had to ask, as she was cuddling with Rob after he was finally satisfied with his new toy.

“All the girls we made today - are you gonna give all of them names that rhyme with ‘ten’?”

Well, Rob was sure as hell going to try!

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This was a lot of fun! I do have to shout out the Ben 10 fandom because they have an entire sub-fandom of turning the aliens into hot babes, so developed they have their own name. The Chaquterix people are doing god's work!