His little sister's

"DARREN!!" came Stephanie's shout, piercing a bit of the ever increasing haze surrounding him. That really only let him hear the quickly approaching footsteps of his sister. "Darren, your room! It's covered in...oh my gods...." The himbofied man looked up from his position on the floor to see his blonde little sister standing in the doorway, staring at the debauchery he'd accidentally brought onto his family. She was very obviously dumbfounded, and he very dearly wanted to make that a permanent state of being for her. "Darren, what did you do?"

"It's not my fault," he said in defense, but was then unprepared for Mattie to suddenly deepthroat the entirety of his dick. Her tight, warm, and twitching throat instantly pushed him to climax, but he couldn't cum in his sister's child's mouth while she was watching. He wasn't really sure why, but he just couldn't. So he swiftly grabbed the brunette slut by the head and pulled her off, managing to hold back just long enough to pop her mouth free. Then he unloaded, all over her face and hair and himself. His gender-swapped nephew didn't hesitate to start licking up the cum that had dripped onto his firm abs.

"How could this possibly not be your fault?!" Stephanie screeched. "You're the only one with a dick in this house since you TURNED MY SON INTO A CUMSLUT!" Mattie helpfully punctuated her mother's point by slurping loudly and smiling in cross-eyed happiness.

"I was asleep! Sadie was the one who did that! She fed Matthew my cum and by the time I woke up he'd turned into Mattie and she was sucking me off."

"So why didn't you, oh I don't know, STOP HER?!?"

"Well, she's really good at it and they all need my cum now, they're super addicted. I'm being the responsible one and helping them get what they need." That seemed so fundamental it seemed odd Stephanie didn't get it, not to mention the disgusted look she was giving him. Maybe it had something to do with cumming onto her daughters, both the old one and the new, at the same time. In his own defense, he felt like he'd really needed to.

"Do you realize how insane you sound?! You don't realize how fucked up it is to be basting our children in your spunk?"

Darren didn't. He couldn't understand why she was so angry. Who cared if they were their children? All he saw were cum whores moaning for another load. Why couldn't Stephanie see? Why couldn't she understand it? It wasn't complicated! It irked him, and so did the look she was giving the blonde sluts in the room. She shouldn't be blaming them for just getting what they wanted! They couldn't help it! If only there was a way for him to show her why they were all such cum-craving sluts...

The idea hit him along with the brief feeling of post-nut clarity, something that seemed like it was becoming more rare. That could be considered later though (or not), after he'd helped Stephanie understand. "Sadie, I need to...can you...get the....AAGGHH!" He couldn't quite put it into words (his balls were too damn full to think), but Sadie apparently didn't need him to. She jumped up and practically tackled her aunt, forcing her to her knees while tearing at her clothes. The sight of her mature tits popping out was all the incentive he needed to start jacking his cock again while Sadie held the struggling Stephanie still.

"NO, DARREN, STOP! YOU'RE GOING TO TURN ME INTO A SLUT LIKE THEM!!" Something about her voice poked at him in an annoying way. As if, for a moment, he was the one in the wrong. But then he saw Sadie's eager face and thought about how hot it would be if she was, if she was a ravenous bimbo for his dick, thirsty for his incestuous semen just like her niece, and her daughter, and her other daughter, and her daughter's girlfriend, and...

His cum was just as potent as ever, if not more so. It only took one small glob on her face to make Stephanie stick her tongue out for him to coat. She started giggling incessantly while he dumped stream after stream of pearly semen onto her face.

His vision only cleared of stars once his orgasm stopped, and by then his sister was cooked. Her soft hand was stroking his momentarily spent cock, wide grey eyes sapped of their former anger, fear, and disgust. Now they just stared up at him with happy and eager cumlust. And it was obviously better that way; she looked so happy, how could he ever have considered it wrong to make his sweet Stephanie as happy as she could be?

"Hehehe, why was I mad, brother? I think I was mad before, but you cum is so....hah, so goood..." the blissed out sister said with a sigh, eyes going unfocused for a second. She opened her mouth to suck on him properly, but just the touch of his tip on her lips made her giggle and smile more. "I'm all yours..."

"Mommy, gimme cum! No fair keeping it all for yourself!" Harper cried, shoving Darren away so she could slurp the cooling jizz off her mother's face. Her big lips mashing against Stephanie's and all across her cheeks and nose, sucking up every drop she could find. It was accumulating inside her, building up and up and up, until she sucked a thick wad out of her own mother's mouth and suddenly stiffened up. Harper's back arched and her already large tits ballooned up to artificial levels. Her nails got longer and her massively plump lips swelled further and were dyed a deep pink. "They're so big! Do you like my big titties, Uncle? Look at how big your tasty cum made my knockers! They're so fun and bouncy and they're gonna make me cuuummm~~!"

Harper's chest was indeed enrapturing, not to mention arousing. Darren watched his completely bimbofied niece squirm until she outright squealed. "I'm such a SLUUUUTT!!" Those were the final words she got out before she came her remaining brains out and collapsed onto the floor into a pile of eager fuckmeat.

Bereft of his eye candy, he realized Stephanie was sucking on him with fiendish intensity. Who knew his sister was such a great cocksucker? She was quickly shaping up to be much more as well, her skin darkening slightly and shining with a fake lustre while her boobs grew larger. She'd tied her hair back at some point, making it delightfully simple to stare at her while she looked back at him and worked his cock.

"Auntie Stephanie's much better like this," Sadie said to herself, loving the site of her aunt's frenzied sucking and her father starting to thrust into her mouth in turn. Darren agreed. Stephanie hadn't had anyone to fuck for so long. That sounded like a terrible, terrible fate. Luckily, he was there now. There to fuck her into simple, mind-melting pleasure. His cock fired more cum into her and the bimbo MILF squealed with delight, gulping down as much as she could and letting it creep up into her brain, chewing away at her every thought until there was nothing left. That was good, Darren thought, looking down at his slut sister and barely remembering the woman she had been just a few minutes before. She was definitely better this way.

"Don't forget about the rest of your sluts, Daddy. I wanna feel you stretching me out too." Darren looked over to see his precious little daughter posing like a whore for him, her now big and firm breasts standing on her chest and framed by a grey outfit she'd pulled from somewhere. She was giving him the most obvious fuck-me eyes he'd ever seen and he immediately dumped another load into Stephanie's ravenous throat. She was insensate at the first taste, leaving him free to turn and stalk towards Sadie, who waited with barely restrained adoration and anticipation.

"Oh daddy, I love it when you look at me like that. I love being your bimbo, even though I can't be as good a one as these other sluts," she moaned, grinding her thighs together. Darren lunged forward though, grabbing her by the neck and pushing her down. Instead of panic, she stared at him with unrestrained need, gasping with delight at the firm hand on her throat.

"You're the best slut, Sadie, don't say you're not. And all good sluts get cock!"

"YEESSS DAAADDDYYYY!!!" she screamed as her father's huge length split her open, plunging all the way into her depths with a single stroke that had her cumming instantly. Her body jiggled and wobbled under the **** of his thrusts and her own writhing, giving him an ever shifting view to appreciate and to spur his rapid thrusting onward. "FUCK ME, FUCK ME, FUCK MEEEEEE!!!" Sadie shrieked through her climax, only to cum again as soon as the first began lessening. Her father wasn't stopping, so neither was she, both of them determined to not stop until Sadie was a cumming, insensate mess.

"Can I eat her out once you're done? I fucking love the taste of your cum," Mattie asked and Darren spared a moment to glance at his nephew-turned-bimbo niece. She didn't fit the archetype as much as the rest of her family, but the was still an obvious sluttiness to the small-chested brunette. She had it where it counted, with wide hips, a big ass, plump lips, and eyes empty of anything but cocklust.

"You can eat her out while I give you a load of your own in that fresh hole. Then you can eat that and get a taste of your own pussy," he grunted, yelling out as his daughter's ravenous insides milked him for another load. He gave it to her without hesitation, already imagining what Mattie's pussy would feel like.

"And then..." his eyes roamed the room and the numerous blissed out girls that filled it, until he landed on Chelsea, the poor girl on her knees and staring at him with silent attentiveness. She was even further gone than the rest of them, her eyes a light grey and reflecting absolutely nothing. He vaguely remembered his initial hesitation of fucking her and scoffed at the notion. She was the one who had fallen the furthest, at least so far. She was made to be turned into a bimbo cocksleeve cumdump, the empty attentiveness she stared at him with was only proof of that. Not to mention her tits were nice and big now, distending the neckline of the pink top she was wearing. "Then I'm going to fuck that cunt stupid like I should have from the start," he growled, thrusting his hips with even more savage intensity. Chelsea offered no argument or anything else, just staring back with eyes wide open and drinking in every bit of him she could.

"Fuch themm lik kock-shleevesss...Daddyyyy..." Sadie burbled, nearly entirely insensate from her father's rabid pace. Her eyes were rolling in her head, her nerves fried with pleasure, but even then she urged Darren on, encouraged him to take every woman in the room and ruin them utterly. The stud Darren had become offered no argument and never would, more than satisfied to spend the rest of his days fucking his bimbos into every greater mindless slutdom.