Marble was sitting on the chair, which would usually be facing the screen on the wall, providing easy access to the console underneath it, facing the scanner. She looked as if she was totally calm, with no worries running through her head. The medic looked like she was the physical manifestation of relaxation, in fact.

But the Impostor knew that was all an act. As soon as the Futa walked in the Medical Bay, the eyes of the newcomer were on those massive, milky tits. It was utterly ridiculous, how one person could have breasts as big as a third of their body height. Each humongous tit, around a foot in diameter, hung over Marble's stomach, reaching down to her belt, almost obscuring it in its entirety.

A sight for sore eyes, definitely. The Impostor proceeded to undo the safety binds of their suit, which caught the medic's attention. She raised her head slightly, her visor locking onto the Futa's frame.

"Oh, hell-"

"Hey, doc, just getting ready for my scan." Interrupted the Impostor, fumbling around with the tools needed to remove the garment.

"That's good… Why are you removing your suit, though?" Inquired Marble. Her voice was pleasant to the ear, but the Impostor found it to be something harrowing, in a sense. After all, she had blown the Futa's cover. That was a very bad thing.

"What do you mean? Don't I need to take it off?-" The Impostor feigned ignorance, making their voice come out, indicative of puzzlement. The Futa bent over and the suit slid off. "-After all, wouldn't it be easier that way?" Inquired the naked pretender, standing as tall and proud as possible. The cool air of 'the Skeld' made the nipples of their breasts tingle, the thin, imperceptible hairs at the back of their neck straighten, and a pleasant shiver ran up their spine.

"Wha-" Marble was about to say something, but she froze in shock. Her eyes, underneath that visor, were glued to the surprise, no doubt. Between the Impostor's legs hung a thick, girthy tool, alongside it a pair of balls that sagged heavily, as if full of frothy, potent cum.

The naked pretender performed a pelvic thrust at the air, which made the lengthy member between their legs bounce in an alluring manner. It was not hard, but it was still about as long as a brand new pen. And it got bigger, the Impostor knew. Keeping their pelvis jutting out as far as possible, without falling, the Futa licked their lips and put their hands on their hips.

"Well, bitch, you found me. Whatcha gonna do now?" Mockingly asked the Impostor, flexing their kegel muscles, forcing that fat shaft to bounce up. It was slowly getting harder, but the effect that was having on Marble was not very big. What was affecting the Medic was the stench, the masculine smell, the overwhelming power exuded by that massive penis' sheer presence.

The Impostor knew, very well, how the suits worked. As long as a person had a suit on, most smells, and particles, could not get through. However, some were too small to be stopped, though the thicker a suit, the more likely they were to be stopped. The pheromones released alongside the smell of a Futa were that small. Normally, while the Impostor had their suit on, and was in the presence of others with a suit on, the double layer was enough to keep the ladies from acting up. But when only one person had the suit on, that was when it happened. Those magnificent pheromones were, currently, sneaking their way through Marble's suit and gluing themselves to her nostrils, making her pussy quiver and her nipples harden.

"Nothing to say? Well, I always had you for a whore.-" Chuckled the naked pretender, the log between their legs now a foot long, and as hard as a steel beam. Vascular, twitchy and utterly vulgar in appearance, it was like a magnet for women. To her credit, Marble was still sitting on the chair, not having pounced on top of the Futa. "-Let me see…" Muttered the Impostor and the door to Medical Bay hissed quietly as it closed down.

That was it. They were now alone, for at least ten minutes, and Marble was now entirely at the naked pretender's mercy. And the fat cock throbbing in front of the medic had none to spare, at least, not mercy. Cum, however, it had in excess, as dribbles of pre-cum were already leaking down from the slit on the tip.

The Impostor walked towards Marble, their fat shaft swinging in unison with their gait. The medic did not even move, so stricken was she with lust, she undoubtedly knew what was about to happen.

"You know, those fat tits of yours have been causing me so much trouble!-" Exclaimed the Futa as the fat cock plopped right between Marble's massive breasts. The hands of the Impostor, ending in nails that were sharper than one would consider safe, grasped the huge globes of flesh, and both the medic and assailant moaned. "-I've had to fight so hard not to get a hard-on, every time those fucking melons swayed in my fucking face!" Angrily complained the Impostor, roughly kneading Marble's breasts.

"Please…" Quietly whined the medic. The naked pretender stopped, but their hands remained on the soft flesh pillows.

"Yeah, I agree with you, slut, it'd feel far better if those puppies were bared!" Exclaimed the Futa and dug the claws of their hands into the suit. Marble screamed in fright. Normally, the suit was resistant to cutting, but ripping and tearing had not been taken into account, when designing it. The fabric was like butter before a knife, becoming undone in seconds, as the talon-like nails, and strong hands, tore at it.

Marble's massive teats, now freed from the constraints of her clothes, sagged down, all the way until they comfortably rested in between her thighs. Being barely three and a half feet tall made her colossal breasts look so much bigger. Her porcelain colored flesh looked so delicate, the Futa, in another life, would have had some moral constraints, some fears of damaging her. Not in this one.

The Impostor threw themselves at the medic's humongous chest, burying their face in the soft, warm flesh. Those clawed hands grabbed at Marble's large, puffy nipples, and started pinching them, twisting and pulling.

"You're such a fucking cow, Marble! Actually, what kind of fucking name even is Marble? It's a cow's name!" Jeered the Futa, their tongue lapping at the massive mounds of flesh. It was tasty, as the medic had not only kept her personal hygiene up, but had also worked up a slight sweat. Marble smelled of strawberries, indicative of the soap she used to clean herself, but she also tasted in a completely unique way.

The Impostor could hear the moans of the woman in their hands, and the hips, which had, so far, remained stationary, involuntarily started thrusting. The sheer sound of an aroused wench kicked up the lust of the naked pretender by an incredible margin, but when it was a whore with breasts as big as those, it was impossible to resist.

"You'll get it, you fucking bitch!-" Growled the Impostor, pulling themselves out of the mind boggling cleavage. Their hands, still holding onto Marble's nipples, pulled her breasts closer together, which elicited a moan of pleasure from the woman. Just now did the Futa notice how big those puffy, pink nipples were - they were, probably, as long as some people's dicks were! "-Damn, Marble, those're some fucking titties! Come on, make yourself useful and hold 'em together for me!" Ordered the Futa as she let go of the left teat's nipple.

Marble complied with the order, pressing her palms against the sides of her breasts. The titanic flesh mounds looked incredible, and, for a moment, the Impostor wondered how she was able to sleep at night, but that thought soon left her mind. Would not be doing much sleeping soon, nor would she care - after all, being a living onahole would sap any other thoughts out of her head.

The Futa took hold of their massive, throbbing cock and guided it towards the canyon between those fat titties. Marble was not interested in waiting much more, nor was the Impostor, so the pulsing, girthy shaft slid in between the breasts easily, as if it was meant to be there. The naked pretender did not really have any objections to that supposition.

"Oh wow! This is- This feels fucking great! Jeez, fucking your tits is so worth the wait!" Exclaimed the Futa, their hands falling back down to Marble's nipples, squeezing them hard while pulling at them in different directions, to stimulate the cock in between those massive breasts. It was incredible, how almost their entire penis was buried beneath the humongous teats of the medic. It was barely poking out from between them, slightly nudging against her neck.

Marble was moaning as if she was having her womanhood plowed by the Impostor, rather than her breasts, though the naked pretender did not mind one bit. The moans of women excited the Futa even more, and made those heavy nuts of theirs tingle, as if they were about to blow up from the incredible excitement.

"Please…" Mumbled Marble, as if barely able to think, or speak, at this point, as if her arousal was so great it was absolutely crushing her mind. That was entirely possible, though the Impostor barely heard her say anything.

"I gotta fuck those tits! These fucking tudders! Fuck, those're some nice tiddies!" Moaned and groaned the Futa as their hips started pistoning wildly, sending droplets of precum flying all over the Marble's huge breasts. The Impostor felt good, it was so incredibly pleasant.

The moans of the victim, their own groaning, the sound of their backed up nutsack slapping against the medic's crotch, the weight of those massive teats, the size of her nipples - all those things coalesced into an incredible experience that made the Futa feel like bursting any moment now.

"Marble, you fucking whore, suck my cock!" Screamed the Impostor, ripping her visor off as they felt their ball-sack clench, and their penis swell up. The medic feebly followed the Futa's command, craning her neck and bending her head as much as she could, making an O shape with her lips. There were tears in her eyes, but that only served to excite the feverishly thrusting assailant even more.

Going cross eyed, making noises so obscene they should not have been possible to produce with a human's equipment, the Impostor pushed Marble's tits as hard as possible, while simultaneously squeezing her nipples with a force great enough to bend a spoon, which caused the medic to yowl in a mixture of pleasure and pain, opening her mouth as wide as possible.

The Impostor's urethra widened considerably, as they felt their whole cock tremble and spasm. Arching their back, they hilted themselves as deep in Marble's huge bosom as they could. The pre-cum slathered tip poked out from the canyon between the massive pair of teats. It pulsed, visibly, and it fired.

Goopy ropes of frothy, thick spunk shot out of the cumslit on the distended cockhead and splashed against the roof of Marble's mouth, slathered her lips, prayed onto her chin, all over her face, and yet she did not pull her head back even a single inch. The Futa felt their legs weakening as they emptied their nutsack, each blast as fast as a jet of water.

The Impostor leaned against the woman underneath, their entire body trembling in elation, while their cock still leaked out their thick spunk. Heavily gasping for breath, the naked pretender held onto Marble's nipples, while somewhat hugging her massive breasts, for a few moments, feeling the nerve wracking convulsions of the girthy manhood between those magnificent titties.

"Damn…-" Muttered the Impostor as they pushed themselves up. The medic underneath them had gobbled up a lot of the creamy, viscous cum, so she was probably already a goner, but that did not concern the Futa, not even a little bit. Slinging their cock from between Marble's huge tits, the naked pretender groaned blissfully. "-Bitch, your tits are so fine, why'd you even become a doctor? You're the freakiest whore I've seen!" Commented the Impostor, giving their own rendition of a compliment, and thwacked their heavy meat-shaft against her breasts.

"No…" Mumbled Marble. Her assailant looked at her, a sly grin on their face.

"Oh, yes… I ain't even done, you fucking slut!" Announced the Impostor, slapping their cock against Marble's massive teats. It produced such a pleasant wet sound, and sent the mounds of flesh rippling.

The naked pretender lowered themselves a bit and regarded the medic's snatch. The suit was quite high quality, as was expected, and there were no signs of moisture leaking through. The nails dug in and ripped the fabric apart, revealing the treasure beneath. A tight lipped, waxed pussy, sopping wet, and stinking of arousal.

"Hooh, ain't that a cunt. It'll be even nicer when it's gaped by my fucking cock, leaking my cum!-" Mused the Impostor while their one hand stroked their long, thick penis, and the other rubbed the soaked womanhood. "-You're already ovulating, cuz of drank my cum up, ain'tcha? Pumping you full of kids is gonna be fun…" Stated the Futa as they made a step back, aligned their cock with the quivering quim and chuckled.

With a clean motion, the pussy lips were parted, and the thick shaft slid inside, with almost no resistance. Both of them moaned, Marble's filled with pleasure, but underlined with fear and pain, while the Impostor's was purely one of ecstasy. The sensation of having their penis enwrapped by the contracting folds of a woman had been almost forgotten, as it had been more than a month, but they had lasted through it. And the reward was amazing.

"That's… That's a grade A pussy-" Groaned the Futa as they slowly moved their hips, taking it one step at a time, out of worry they might bust their nut too quickly, if they went at it full force, even though they had just blasted a fat load. "-Oh I love it!" Muttered the Impostor, taking hold Marble, who, in turn, reached out and wrapped her arms and legs around their back.

The naked pretender carried her over to one of the cots and laid her down on it, without being overly cautious about it. The weight of her body on their cock had been great, but it was going to be too tiring to thrust while also holding her up. In addition, the Impostor would not be able to play with those huge milky tits. Milky?

After a double take, the Futa's eyes widened, and they could not believe it. Marble's huge nipples had a white liquid leaking out of them.

"You nasty slut-" Groaned the Impostor, feeling their shaft stiffening even more, their balls trembling. That was exciting. Exhilarating. "You're a fucking cow!" Exclaimed Marble's assailant, grabbing hold of her nipples and squeezing them harshly. Milk squirted out, plain as day, and it was warm on the Impostor's skin. Without thinking, as if on instinct, the Futa wrapped their lips around one of those massive nubs and started sucking, while their hips started pistoning.

It could have been due to the forced ovulation, or due to Marble's natural state, but she was lactating, and the amounts were great. The taste was heavenly, quite unlike normal milk, as it seemed to have a thickness and texture to it, it was warm and sweet, it was simply perfect. With their hands, the Impostor squeezed and kneaded at the medic's massive breasts, while with their hips they thrusted into her.

Marble was moaning like a bitch in heat, which was exactly what she was at the moment, her pussy clamping down over the Futa's fat cock as if it did not want to let go, her hands digging into her assailant's back, her legs locked around the naked pretender's waist. That only made the whole experience better for the Impostor, as they rammed themselves deeper than any previous lovers had managed to go, as those heavy balls slapped against the medic's rear.

The Futa's lips let go of the nipple between them, and the rapist in the act grit their teeth, groaning in pleasure as they picked up the pace. Marble's massive teats were bouncing wildly, rippling with each thrust, spraying milk everywhere. She was enjoying it, and she was probably constantly cumming, but that only made things better for her assailant. The constant contractions of her pussy's walls, the clamping down, the dragging, the wet, slurping sounds, the slapping of their bodies against one another.

"Fuck-" Growled the Impostor, feeling their orgasm approaching, and sped up, going as fast as they could, like a rabbit in the middle of the action. "-Take my fucking kids you whore!" Screamed the Futa as the tip of their cock slammed itself as deep as it could go, its leaky cum-slit giving the entrance to her womb a little kiss, before it opened up wide and a torrent of jizz sprayed right in her uterus.

Again, the Impostor felt their legs giving out, their whole body shaking, as the power of their orgasm made their nutsack clench and squirm, churning out cum in volumes that were certain to leave their receiver pregnant. The naked pretender thrust once, and again, and went limp on top of Marble, sinking between her massive, pillowy breasts, heaving as the medic breathed in and out.

"What a whore…" Muttered the Impostor as they pushed themselves up, their cock going soft. Gasping for breath, they observed their handiwork. Marble's breasts and face were covered in cum and milk, while the vacant expression and the dead eyes indicated she had transitioned into being the Futa's personal onahole. The rapist pulled out, the medic's pussy releasing their shaft with a loud, lewd pop, and, almost instantly, the thick, creamy spunk that had been deposited within started leaking out.

The Impostor heard the hiss of the doors opening, and concluded it was time to go. They put their suit on, took a last look at Marble's form, splayed over the bed, fucked silly, and smirked behind the visor. As they sunk into the vent, they thought to themselves that this had been their first conquest.

One of many.