His sister deserves his best

As he walked up to the door of his parents' house, Harry's infinite knowledge told him that his parents weren't home, but rather at a play. His older sister Joanne and her boyfriend Robert were there, however, even though Joanne wasn't supposed to have him over. She just wasn't making enough from her job to afford to move out yet. If he hadn't become God, Harry would probably also have had to move back in after he finished his degree.

Walking through the front door, the telltale sound and smell of sex immediately hit Harry. He already knew the two were fucking, but he let himself spy on his sister's bedroom, where Robert was lying on her bed while Joanne rode him. Robert's hands were playing with Joanne's modest chest.

Harry's massive cock spurted a bit of precum at the thought of having a woman do that with him. With a bit of a grin, he said, "Hi!"

In what was clearly a whisper but which he heard loud and clear, Joanne said, "Shit, Harry's here. Come on, get up, get dressed."

"Take your time," Harry called. "I'll amuse myself. Just take as long as you need to COME!" In a quieter voice, as Joanne writhed on her boyfriend's cock and Robert began spurting cum into Joanne's pussy--Harry swiftly gave everyone perfect, instinctive control over their fertility, unless he was involved, of course, and got rid of STIs altogether--he added, "Down."

He kept watching as Joanne collapsed off of Robert, frantically rubbing her pussy and her clit, while Robert's cock continued to spurt jizz over her chest, Harry's absolute divine command forcing the man to orgasm well beyond what he ordinarily would've been able to do. Harry quirked an eyebrow. He hadn't known that Robert was actually pretty well-endowed, for an unmodified mortal, at least, and his cumshots were pretty good, too.

He previously hadn't thought Robert was a particularly good boyfriend for Joanne--the man always seemed a bit too greedy and entitled when it came to her attention and affections--but now that he was God, Harry could tell that Robert really did genuinely love Joanne, and it was reciprocated.

So with that in mind, Harry decided to gift Robert with a forty-two-inch dick, which he also gave Jeff, and the general suite of divine exemptions.

A flex of divinity put the couple's clothes away, freshly laundered and neatly folded in an instant. "Just come down when you're done cumming."

Of course, Harry made sure that would still take a while, but eventually both of them did, entirely naked, Joanne's torso plastered with Robert's cum, though it didn't drip off of her thanks to Harry's will. Robert had also had some of it drop on his chest, but a quick thought made that vanish without a trace. He left the mix of cum and pussy juices on the man's shaft, though.

Robert looked Harry up and down, Harry's powers making him see nothing unusual about his girlfriend's brother sitting naked on a couch with a fifty-inch dick pointing angrily toward the ceiling. "Damn, nice cock."

"Could say the same to you," Harry returned. He held out his fist and Robert bumped it.

"Yeah, it just grew somehow." Robert shrugged. "Wonder if I can even get the tip into Joanne, though."

"Eh, I'm sure it'll fit," her godly brother assured him. Divine compulsion made sure Robert wouldn't question that, nor why he was about to walk outside completely naked except for his shoes.

"Call me later, babe, okay?" Joanne said, completely unconcerned with being naked in front of her boyfriend and her brother, both of whom were sporting unnaturally huge cocks.

"Sure thing." Robert was about to blow an air kiss at Joanne, but a quick mental command from Harry made him give her a long, lingering one on the cheek, instead. His cum was caked on so thickly that he came away with a full mouthful of the stuff. After he swallowed, he said, "Hunh. I thought I'd hate the taste of my own cum."

"Your cum's always been delicious," Joanne replied. "Why do you think I love giving you head even though you won't eat me out?"

"Which you should absolutely do," Harry added. "Not fair to her that she takes your dick in her mouth but never gets to feel your tongue on her cunt."

Of course, Harry's point had a much greater impact on influencing Robert's future behaviour, backed as it was by God's absolute control over reality.

"Yeah, I guess I should. But for now I really should go before your parents get back."

Harry shrugged while Joanne gave Robert's shaft a long stroke with her tongue. A quick exertion of irresistible will made sure that their parents would find themselves getting really horny for each other during the play, and decide to get a hotel room for the night where they could fuck eagerly and noisily without disturbing Joanne.

"So, what brings you here?" Joanne asked, unconcerned with the jizz all over her body as she plopped her firm ass on another chair.

"What, I can't swing by to say hi?" Harry asked in turn. "Not much I can do that I happened to come by while you had ten inches of dick in your twat."

"I guess. Would've been nice to text, though. Anyway, what is up with you?"

Harry explained the events of the past few hours. His omnipotence, as usual, made sure Joanne wouldn't actually be disturbed by any of it, not even that he'd influenced her mind to make her okay with being naked around him, and make her comfortable talking about her sex life, or that he'd cucked his roommate, or that he'd raped a lesbian and then in turn gave her permission and the ability to rape anyone she wanted, and did the same to her twin sister.

"Sounds like you've been a busy God," Joanne concluded when Harry finished.

"Yup." Harry snapped his fingers and made Robert's cum disappear. Another snap froze time outside the house, and a third brought the two of them to his bedroom, Joanne bent over the bed and Harry's cock lined up with her slit. He easily slid the entire thick length into her.

"Is that all you wanted to do?" Joanne asked around her moans as the touch of God's dick immediately made her more aroused than Robert ever had. "Just come here and fuck your sister? Never thought you were the incest type."

"I wasn't," Harry said, "until I became God and realized that right or wrong is pretty much just entirely my subjective opinion."

He started playing with Joanne's boobs, expanding them until they were noticeably larger than Beth's, while her ass bloated until it was too wide even for a four-person couch. Joanne's hair grew as well, of course, and Harry decided to give his sister some very impressive musculature.

"What would you say to having Robert as a slave?" Harry asked.

Joanne considered the question with some seriousness. After all, if her omnipotent brother was suggesting the possibility, that meant there wasn't anything inherently wrong with it. "Why should I need him as one? He loves me, and I love him."

"He might leave you some day," Harry lied. In truth he just wanted to keep flexing his powers and revel in the idea that he could just upturn morality. "Might want to get his dick wet in someone else's holes. One-night stand, at least."

"I guess you've got a point," Joanne conceded. "You'll make it so nobody sees anything weird about it?"

"Nobody sees anything weird about my walking around with fifty inches of meat out for all to see," Harry pointed out.

"I guess, then, sure." Harry snapped his fingers and Robert and Joanne's minds were rewritten for their new relationship. At the same time, Harry gave his sister four full feet of dick.

"What's this for?" she asked.

"So that you can peg him or have him suck you off," Harry said.

"I've never even wanted to use a strap with him. I like how his cock feels inside me."

"What's more important," Harry pointed out, "what you want, or what your all-powerful brother wants? And I want to see you stuffing Robert's butt full with your new meat."

"I guess there's no point arguing with God."

"Nope. And I'm going to change you even further." Being that Joanne was his sister, he went further with her changes than he had with Charlene's. Taller, even more muscular, not just tentacles but also extra arms, fingers she could turn into cocks, extra nipples on her boobs that she could turn into cocks, prehensile hair that could reach all the way to her ankles, Harry took inspiration from a lot of the kink fiction he'd read and gave it all to Joanne.

"Are you just taking what you did to Charlene and Jenna and amping it up even more?"

"Why, is there something wrong with that? I've given you all the same exemptions from human and divine law, of course."

"Well, it just seems a bit unimaginative, I guess. Mix it up a bit. Maybe next you should find some guy and give him a few women as sex slaves." Harry had rewritten his sister's morality to make her entirely accept, and even support, the notion that God could simply impose slavery if he wanted to.

"I might do that. Just, Beth was right there, and I've wanted to bone her for months, I felt bad about Charlene and had to make it up to her, and then how could I not also let my sister have the same privileges?"

"Sounds to me like you've just got a kink for turning women you find hot into hypersexualized rapists. Even if you only started finding me hot after you decided that incest was just fine."

"I've never thought you were unattractive," Harry said. "But you're right that I had no desire to use you as a cocksleeve until a few hours ago."

"You wanna keep doing that or let me go find some hot bitch to fuck?" Joanne asked.

Harry responded to that by altering her even more. Her breasts and butt became even bigger, her crotch sprouted another two ridiculous cocks, and she grew another two heads, all three on stalks of necks long enough to let her see over the top of her absurdly massive chest.

"People are absolutely going to stare, you know," Joanne pointed out.

"So? Let 'em. You'll find it doesn't much matter what people think of you when you can just grab one with your hair and impale them on a shaft. And anyway, I just made body-shaming impossible and declared thinking it a mortal sin."

"What next, are you going to bring down hellfire on any restaurant serving thin-cut fries? I know you've always hated those."

"Eh, I just sent the fuck who invented those to Hell. Can't alter history before I became God so I'll just leave them be otherwise."

"You're a petty fuck, you know that?"

"Like you'd have been any better, at least in that regard," Harry shot back. He knew full well Joanne wouldn't have immediately gone overboard into absurd sexual situations the way he had, but she could be a petty, vindictive bitch just as well as he could.

"No, I guess I wouldn't have," Joanne agreed. "I'd have done worse; I'd have made pineapple on pizza mandatory and banned pepperoni as a topping."

"No wonder the last God didn't choose you, you monster." Harry said it mildly; it was somehow comforting to have a bit of jibing back and forth with his sister, despite his having just fucked her silly and turned her into something even most hentai artists wouldn't have drawn. While he was at it he also let her change any of her nipples into lipples, too.

Joanne idly shifted her teats between their various forms to practice. "Any other changes you're going to make to me? At least, that you care to tell me about," she added as she discovered the lipple alteration.

"Oh, yeah. Never mind body-shamers being damned to Hell in general, so are homophobes and transphobes and such, by the way, if anyone thinks that sort of thing about you in particular they'll instantly become your devoted slave just like Robert is, but you can ask me to banish them to Hell whenever you want instead." He thought for a moment, then added, "And there's another change but you'll find out about that one once you've got too many holes to fuck and too few cocks to do it with." Given that she could turn all of her dozens of fingers and nipples into sizable dicks, that would take a while. "You'll know it instinctively as soon as it happens, though."

Harry thought about giving his sister the ability to banish the extra bodies she'd be able to summon once she had enough devoted slaves--which, given how she looked, probably wouldn't take as long as he had implied, if she just walked around town and showed herself off--but decided against it. They would fit into her life quite naturally, no matter how many she summoned, and anyway the thought of his sister having hundreds or thousands--more, millions, even billions if she went truly overboard with it--of bodies running around had his cock throbbing harder than it had been ever since he came God and got a nice look at Beth's since-expanded ass.

Nothing would go wrong with it, of course. Nothing could. He was God, and he so ordained it. He just had to remember not to consider how exactly all those extra bodies were coming into existence in the first place.

"Anyway, I'm heading out. You should too, no better way to get used to the ogling--more than you usually get, anyway--by just getting yourself out there," Harry suggested.

"You're probably right. I imagine you've got the whole getting-out-of-the-house problem already solved for me?"

Harry shrugged. "Yeah. It works, somehow. I don't concern myself with the details." This time, Harry did teleport away.