Katie enhances her and Matt's bodies

Once Matt and Katie were done eating, Katie waved her hand to consign the plates and cutlery back into the nonexistence from which she'd summoned them.

"So, Katie," Matt began.

"Yeah?"

"You're God." Matt's dick was tenting the sheets and it twitched as he spoke.

"Yup."

"All-powerful and all the rest?"

"As far as I know," Katie confirmed. "I haven't done that much, really. I was able to teleport home last night and dry off as I did. I made my pubic hair vanish, as well as your clothes. I made sure we'd only feel pleasure when we fucked, and I mind-controlled my family so that they wouldn't bug us or care that you're here." Katie sent a mental command to her older brother to stay in his room for the day and either sleep or have sex with the man he had a crush on, whom Katie teleported to his room and made them fall deeply in love with each other. She also gave them big cocks and easy orgasms with no recovery period, and did similarly for her parents. "And of course I just made you really really smart, and conjured up breakfast from nothing."

Matt nodded. "So why didn't you change anything else? Like, we have talked about our sexual fantasies, just as fantasies, but now you can make them real, I'm guessing."

"Because I wanted our first time to be natural, well, as natural as it could be," Katie explained. "But now that that's done, I was planning to make a few changes."

"Like what?"

"Well, first, you're going to be completely okay with everything I do, in fact nothing other than sex with me will turn you on more than my using my powers," Katie said. She loved Matt, and she didn't want to lose him because he got freaked out by anything she did.

Matt's cock twitched, unable to get any harder than it already was. "Sounds like a great idea."

"Oh, and you love me permanently and unconditionally, no matter what I do," Katie added.

"You know there's nothing you could do that would make me abandon you," Matt agreed.

"Well, with that out of the way, let's make a few improvements." Katie took a hand out from under the sheets and pointed, a mirror appearing where she did. Matt moved as if to get out from under the covers so they could use it, but Katie used her other arm to hold him in place and just snapped her fingers. A naked facsimile of Matt appeared in the mirror, as if he were standing in front of it.

Matt's shaft jerked again at the sight of his girlfriend casually warping reality and telling physics to sit down and shut up.

"Now," Katie mused, "what changes should I make to you..." She trailed off in thought, not caring that she wasn't asking for Matt's input. After all, she wanted him to be perfect for her, and she was God, so her opinions were what mattered.

She pointed at the mirror again, and Matt's musculature firmed up, going from a slightly flabby body to one that looked like he worked out regularly. "Of course," Katie went on, "you won't actually have to work out to keep it." Matt's mind was an open book to her irresistible telepathy, so she knew he had been thinking about having to go to the gym. "Not that I'd mind going to the gym with you, we could work out together and get hot and sweaty and fuck right there in the exercise room."

A wet patch appeared on the sheets as Matt let out some precum.

"Of course, God's boyfriend has to have the best cock in the world." Katie snapped her fingers, and in the mirror Matt's hard dick surged outward. It had already been, to her pleasant surprise, on the large side; now it eclipsed a mere above average and grew past the biggest ones on record, then bigger, and bigger, until it was as long as his legs and as thick as his thighs, and had huge veins running down it. His balls dangled all the way down to mid-shin.

"Katie, how am I supposed to make that fit, well, into anything?" Matt asked, though his tone indicated absolute trust that she'd make it work, rather than alarm at the evident impossibility.

"It just will," she said. "It'll just fit into your underwear, and when you put it in someone's holes, they'll expand on the inside so that you can go all the way in. If someone sucks you off, you'll even be able to get your nutsack in there, too. Oh." She snapped her fingers again, and the image of Matt started cumming, and just didn't stop.

"Every time you shoot your load there'll be enough semen to fill a swimming pool," Katie said. "And it'll all fit too, if you're blasting it in someone, or it'll swiftly dry up and leave no visible trace if not, though you'll reek of sex afterward. But don't worry, everyone loves that smell." Katie casually altered humanity's olfactory preferences to make the "freshly fucked" smell acceptable everywhere, and considered superior to any perfume or cologne, though only if it was obtained naturally, of course.

"Fuck, I can't wait to bloat you with that," Matt said. He knew Katie had some size-queen fantasies but the topic of his own dick size had never come up until she just saw it for herself the previous night.

"Well, how about you get used to it a bit first. Not that you could ever disappoint me in bed, but I still have some changes I want to make." Katie snapped her fingers again, and Matt arched his back in pleasure as his body changed to fit the image. The entire bed was swiftly soaked in cum as he couldn't help but climax, and for a few moments the entire room was flooded from floor to ceiling with the stuff, but just as Katie had promised it vanished almost as soon as his orgasm finished. She'd also made it so that people could breathe normally even when submerged in Matt's jizz.

"Fuck me," Matt said, coming down from the sexual high.

"Mmm, not yet," Katie told him. "But you should probably get used to it, as I said." With a wave of her hand, a gorgeous woman appearing to be a few years older than her was suddenly in the room with them. She was about as tall as Katie, but with extremely luscious curves.

"Matt, this is my chief archangel Amia. Amia, this is my boyfriend Matt. As you can see, he could use some help breaking in his new dick, so I expect you to help him with that."

"Your Holiness--" Amia began.

"Katie--" Matt said.

Both of them cut off when they realised they were talking over each other.

Katie pointed to her boyfriend.

"Katie, are you sure you're OK with me fucking other women?"

"I wouldn't have ordered her to help you if I wasn't," Katie pointed out. "And don't worry, I'm not jealous, well, so long as you clear it with me first. I know I'm not the only one you've had eyes for, but I also know I'm the only one you actually love." Katie didn't check whether that had actually been completely true; her pronouncement made it so.

Then the goddess pointed at the angel.

"Your Holiness, I'm your chief archangel. If you're not going to assume your duties properly"--she sighed; Katie rifled through her mind and found out that it was a perennial issue with Gods preferring their own pleasure to the duties of running the multiverse--"then I would very much like to go back to attending to what I can."

"You're my servant," Katie retorted, "and right now I want you taking Matt's dick in your holes and letting him use you as a cumdump so he can fuck me with that thing properly."

"I know my duties are for you to decide, Your Holiness," Amia said, "but I implore you--"

"You. Holes. Matt's dick." Katie pressed mental compulsion on the angel. "Now."

Unable to resist, Amia crawled under the covers from the foot of the bed, her figure displacing the sheets instead of Matt's dick as she took the whole thing into her mouth. Matt immediately started moaning; whatever Amia's objections, every angel was a near-perfect sexual partner.

Katie magically swapped positions with her boyfriend so that he wasn't between her and the mirror as her figure replaced his on it.

"Any thoughts on what I should do, Mattykins?" she asked. Matt managed a bit of lucidity as he looked at the mirror.

"You said you wanted to be bigger, yeah?"

"Any preferences on how much bigger?"

"You know better than me."

"Damn right I do, I know better than everyone."

Katie grinned as she went to work on her new body. She didn't hold back on her muscles, making herself completely jacked. Her breasts and ass ballooned, becoming even more outlandish compared to the rest of her than Matt's dick was. She made her image taller, too, so that Matt wouldn't even come up to where her boobs met her torso, and finally she decided to try out having long hair down to her ankles.

She also made herself a squirter, with her pussy juices being even more copious than Matt's cum, which she swiftly demonstrated when she orgasmed herself as she grew into her new body, the pressure so great as to blow out her window and flood the yard and street. A wave of her hand fixed the damage, though.

"Fuck you're hot," Matt said as he shot his hundred and twenty-seventh load into Amia, his orgasms overlapping as Katie not only allowed but demanded. He'd only been fucking her for about three minutes, and had already used her mouth and pussy and was now grabbing her hips as she ground her ass on his crotch while his cock was between her cheeks.

"Course I am," Katie confirmed, her body instantly becoming the ideal of sexual attractiveness. "Now, do you want to fuck me again, or maybe I could arrange for you to pound one of the others I know you've wanted."