Striking a Deal with the Dummy

“... Yo.” Cindy said a shocked awe, her big, green eyes wide and sparkling, staring straight ahead at nothing in particular as her hands were gently resting on top of her huge melons. After a few awkward and tense minutes of complete silence, she eventually looked down at her heavy, cantaloupe-sized tits, then up towards her not-so-little brother, who had his beefy arms crossed in front of his chest and was staring down at her with a look of nervous uncertainty on his handsome, frowning face.

Her gaze slowly trailed down the length of his muscular body, admiring the faint but very noticeable outlines of his improved physique all the day down until it landed upon the jumbo-sized, half-erect, leaky cock resting on a tight, full scrotum that resembled a fleshy, ripe orange with a slight crease trailing across its center.

“Duuude!” Cindy gasped, her lips curling into the widest smile he’d ever seen on her pretty face as she looked up into his eyes. “You’re, like, hot now!”

“Hm?” Jack mumbled, taken aback by her lack of outward panic, fear, and/or vengeful rage. “That’s not exactly the reaction I was expecting.”

“Nor I.” Theta said, suddenly appearing on the bed next to Cindy, making her flinch in surprise instead of Jack, this time. Cindy’s head snapped to the side to look at the silvery doll beside her, who was just as expressionless as ever.

“Whoa!” Cindy gawked in amazement before glancing back at Jack for a moment. “And who might you? My brother's first girlfriend?”

“My name is Theta, and I am your brother’s genie.” She said with a nod. “He rescued me from the fourth-dimension, or what you human’s know as ‘the internet’, a vile and despicable illusion of privacy and deviant perversions.”

“Yeah, that’s the place.” Cindy giggled, checking out Theta’s fit, sexy body through her skin-tight bodysuit. “Wait, did you say you were a genie?!” She asked, turning back to Jack in astonishment. “If she’s still here, then that means you still have at least one-...” Cindy paused, then looked up thoughtfully and began counting with her fingers. “Hang on, you’ve had to have made at least three wishes already.”

“Yep.” Jack nodded, still plainly unsure on how he should feel about the situation. “I can make as many as I want, according to her.”

“Correct.” Theta said. “Because I fused myself into the core of his brain, he has unlimited access to my reality-bending capabilities, while I lack the drive to use them myself.”

A slack-jawed Cindy nearly fainted at that news, her mind spinning with all sorts of self-serving ideas and suggestions she could ask Jack to make real. Of course, if she was going to keep her mind in its current, mostly normal state, she was likely going to have to take the initiative and perform any and every incident act on her own brother that her own shameless, gold-digging mind could conjure up from now on, or else he would just make her oblivious to it all again and fuck her brains out at his leisure anyways. Not that Cindy really had any reservations about it, at this point. She’d recently just had the best sex of her life from easily the hottest guy she now knew in person, one who could give her anything and everything so long as she played her cards right. And even if she didn’t, looking back on her second set of altered memories, having Jack do whatever he wanted to her while unable to suffer any consequences was thrilling on some level, she had to admit.

Fuck looking for some insecure, rich slob to manipulate and use until she was old and dusty, she was just going to latch onto her inexperienced, lazy, simple-minded stud of a little brother and “guide” him down the path of doing whatever she wanted him to do, Cindy mentally decided to herself with an evil grin. Who needs money and an ugly husband when you’ve got a sexy, gullible, and seemingly all-powerful genie-wielding idiot eating out of the palm of your hand?

“Do you mind elaborating on that ‘brain fusing’ just a little bit more?” Jack asked his genie, unsettled by how she worded her statement. “Also, what happened to my laptop?

Theta uncharacteristically hesitated, then cleared her non-existent throat before speaking. “... To answer both questions at once: Your laptop may have been converted into organic matter and may have also been fused into your body along with myself, in order to make my dimensional transfer possible.”

“What?!”

“I can create an identical copy of it for you, if you’d like.”

“That’s not why I’m pissed!”

“Correct. You’re irrationally upset because you didn’t think to start asking these questions sooner. Calm yourself, please.”

“No!”

“Shut up!” Cindy said with a laugh, her hand shooting forward to grasp onto Jack’s thick, instantly-hardening cock as he stood within arm’s reach. “If you chill the fuck out, I’ll let you fuck my new tiddies, little bro.”

Jack’s growing frustration was reluctantly but quickly stifled at that, and his enhanced libido went into full-**** as she began to stroke his rock-solid, twitching mass of cockmeat. He took a deep breath and a half-step closer to Cindy, whose lips were only an inch away from the tip of his big dick now, then sighed. Okay, Jack thought to himself, maybe he was getting worked up over nothing.

“Deal.” Jack said, looking down at his naked sister with a raised eyebrow when she giggled and wordlessly slipped the head of his big dick between her lips in response. He sighed again and ran his hand through her artificially blonde hair as she opened up as wide as she could, only able to manage fitting just a few of his girthy inches more before her warm, wet mouth was completely stuffed. The hand around the base of his cock began to eagerly pump away while the other had reached down below her thighs and was gently running its fingers between the plump lips of her hot and very wet pussy, sucking his cock to the best of her abilities all-the-while. “Jesus, Cindy… Were you always this much of a slut? Because I-”

“You are half-correct.” Theta stated. “Your sister is a narcissistic sociopath who will only act as long as her own interests are being served, and she’s already trying to manipulate you into doing her bidding.”

Cindy stopped instantly, then slowly pulled off of Jack’s dick and looked back towards Theta with wide eyes and both hands still in constant motion.

“Wow.” Cindy said, genuinely impressed for a moment at her observation, then felt mildly terrified as she put the puzzle pieces together. “You, uh… You can’t hear what I’m thinking, can you?”

“Figures.” Jack grumbled with a roll of his eyes, utterly unsurprised by the news and his sister’s reaction to being called out for what she was before turning away from her grasp and lazily plopping himself down on the bed between her and Theta. “If that’s the case, then let’s make a deal.”

“Wait, Jack, I can explain! … Wait, what?” Cindy said, going through a series of emotions that ranged from desperation to utter confusion in under a second.

“Get on your knees, and I’ll explain.” Jack said in a flat tone, any trace of guilt or hesitation having evaporated from his disappointed expression. “Now.”

“Oh, uhm... Okay then…”

Moving ever-so-slowly and never breaking eye-contact, a suspicious Cindy maneuvered herself from her seat on the bed down to the spot on the floor between her brother’s athletic legs. Her massive jelly tits seemed to be in slight, constant, jiggly motion with each and every one of her careful movements, and Jack trembled when she got in place and gently placed her hands on his thighs, his hard cock standing straight up as it soon found itself nestling up between the front of her breasts. Her thick, silver-dollar nipples were just as hard as his twitching member was, if not more so.

“Every time you make me cum, I’ll consider granting a wish for you.” He said, crossing his arms as he gazed down at Cindy’s hot body. “Just as long as it's reasonable.”

Cindy blinked a few times, taking a long moment to process her situation before her face lit up with excitement.

“Really?!” She asked, almost shouting the brief question as both of her hands rose up, grabbed her tits, and wrapped them around his silky-smooth shaft without wasting another moment. “If that’s the case, then you already owe me one wish, you sexy loser!”

Jack wanted to protest for a split-second, but only a weak grunt escaped his lips as her plush, silky-smooth tits engulfed his mighty length and began sliding up and down, causing his mind to swim and lose focus of what he was about to retort with. His toes curled into the soft carpet below when she bent down slightly and wrapped her lips around the upper-most part of his cock that her huge tits couldn’t completely smother. Jack slowly leaned back onto his elbows as the moaning Cindy seemingly lost herself in the act of pleasuring him with her extra-sensitive mammaries, then turned to his side, where Theta was sitting only inches away facing him, her slender legs crossed and delicate hands folded in her lap.

“Are my abilities satisfactory, Jack?”

“I think you already know the answer to that.” Jack chuckled. “Speaking of which, I wish that Cindy won’t be affected by any awareness-preventing aspects of any changes that I make to reality in the future, unless I specify otherwise.”

They blinked.

“Awe, that’s sweet of you.” The busty blonde said, grinning at the thought of being able to have her own reality-altering wishes granted in the very near future. Her big breasts were alive with pleasure as they worked Jack’s cock, and her moans increased in intensity as the seconds dragged on, feeling as though their amplified sensitivity might just make her have an orgasm.

“You’re w-welcome.” Jack groaned, then sighed and chuckled, reaching forward and raking his fingers through her hair as she dove back down onto the top portion of his cock, which was moments away from exploding, Cindy knew. “I wish Cindy had a big bouncy butt to match her new tits, and that it was just as sensitive.”

Looking up at the adorable expressions he was making as she worked his cock like a professional slut, Cindy watched Jack blink and smirk, then felt a roaring rush of vibrating pleasure engulf her lower half. Her perky, round butt exploded with growth until it was about forty-five-inches around, and judging by the dull, pulsating, nerve-sparking sensations of her heels digging into their supple masses, her butt appeared to have become just as sensitive as her tits, just as he’d wanted. The entire situation was wrong, dirty, and insane, but Cindy was loving every second of it, and wanted more. The wishes were just a bonus, at this point. She could literally wind up worshiping her dorky little step-brother if this kind of awesome sex continued, Cindy mused to herself.

Any thoughts that were about to come after were interrupted as both of them climaxed at the same time.

Sitting straight up on the edge of Cindy’s bed, Jack used the hand already on her head to push her mouth further down onto it as their bodies shuddered and were wracked with pleasure. Its thick mass passed the barrier of her throat much easier than she would’ve expected, and only briefly remembered the wish her brother had made in the shower earlier about their bodies being able to stretch in situations like their current one. Weak, shivering, and moaning, Cindy allowed Jack to **** her face down into his crotch while his cock twitched and throbbed angrily as it continuously pumped his hot seed into her, her big tits comically bouncing around down below her after they slipped out of his lap.

Her hands had moved from her tits down to her clit, which was furiously being rubbed between her plumped up thighs as she squirted clear pussy fluids onto the carpet below, orgasm after orgasm coursing through her bimbo body while her brother sustained a long, mind-melting one of his own.

By the time they finally stopped cumming, Cindy’s slightly-distended stomach felt as full as it looked. When he slowly pulled her off of him by a fistfull of her hair, her eyes didn’t seem to be focused on anything in particular, and a thick slosh of cum gushed from her open mouth as her lips left his cock. She collapsed onto her back on the floor half-conscious after letting go of her hair, her huge tits comically jiggling around on top of her chest while her legs straightening out underneath the bed.

“Whew.” Jack whistled with satisfaction, stroking his glistening, still-erect cock as a few straggling drops of white spunk oozed out from its head. His balls twitched and trembled, quickly reloading with another batch that was ready to go.

Cindy coughed and moaned a few times as her mind tried to grab a hold of reality, eventually sitting upright and gazing down at her huge tits and swollen belly, then looked up to her brother, who was wearing the calmest smile she’d ever seen on his handsome face.

“So, did that earn me a wish?” She asked, smiling weakly with a glint of triumph in her teary eyes. “I mean, if not, then-”

“Make it quick.” Jack chuckled. “And keep it tame.”

Cindy opened her mouth, then made a pouty face, about to ask for everlasting beauty and immortality right off the bat, but decided against it for several reasons that might include getting on her all-powerful brother’s nerves.

“I wish for, uh… Fuck, I dunno’. Think of one for me.” She giggled. “But, like, something I’d wish for.”

“Fuck, I dunno’.” Jack sarcastically mimicked with a roll of his eyes, then blinked after his next statement. “How about this? I wish that if you ask someone for anything they can give you, they’ll do whatever it is as long as you offer them even the most mild of sexual favors for it in return, which they’ll always accept.”

“Hey, not bad, aha.” Cindy was softly giggling one second, then looked like she was about to throw up in the other, her cheeks puffing out as a hand shot up to cover her mouth. “Oh no, I think I’m gonna’-”

“I wish Cindy was cum-free and peacefully asleep on her bed.”

Jack involuntarily closed his eyes for the briefest of moments, and upon reopening them, his sister was no longer where she’d been on the floor, and was now laying on her side in bed behind him and facing the wall, softly snoring. He reached out and grabbed a handful of Cindy’s full, plush, almost fake-looking ass for a moment, tempted to just rail her right then and there in her current state. Nah, he thought to himself with a chuckle, he’d rather she be fully awake during a good and deep butt-fucking.

“In your position, most would’ve just turned this girl into their mindless, obedient **** several times over by this point.” Theta flatly stated. “Your restraint is admirable, Jack.”

“Restraint?” Jack asked with a laugh, releasing her big ass and giving it a crisp slap, eliciting a moan from her lips as its mass jiggled and wobbled around like fresh jelly. “I guess you could call it that, but honestly, I’m just taking things slow.”

Jack stood up, pulled his arms above his head, then stretched and flexed his entire body for a long moment, his big dick sticking straight out in front of him.

“I wish I was in my room.”

He blinked, reopening his eyes to see that he was indeed now standing in the center of his room. It was a bit disorienting, but still cool-as-Hell nonetheless, Jack thought with an unwavering smile and with his unstoppable erection standing out straight in front of him. However, a worrisome sound came from behind him at the same moment he realized that he’d left his door open.

“Mreow.”

“Goddamn it.”