Cut the fuse, add some fire. Also better add something to douse it with. (Girls up each other, ???)

You decided to be nice to your new family and give them a nice rule.

"Old Rule: It is common for women and girls to compliment each other's bodies in detail when ever one expresses doubt in themselves. Sometimes girls trigger this just to be feed compliments, but nobody minds since it is never grossly overused on purpose."

"Sure Dani, I'll join you girls. Just let me get my notebooks." Truth was, you could stand to study a bit more. Sure, you could just give yourself super intelligence, but you would rather earn your grades.

Dani spoke up, "Why not just use the one you got right there?"

Shiiiiiitt-

Amber interrupted, saving your ass.

"Oh no, that's just one of his new hobbies." But before you could feel relief, "He rights all sorts of facts and plays them off as rules or something. He wrote a whole bunch of nice stuff about us and Mom and Dad. Like, have you guys ever noticed that they age really slowly?"

Rachel pauses for a moment. "Now that you mention it, yeah they do look about our age. Huh. I guess I never really noticed before, they've just always looked like.. you know, Mom and Dad."

Amber nods, "Yeah, well he wrote something down about it."

Logically, you knew that they wouldn't do anything with your book... but you couldn't help but worry.

"Yes... Sometimes I wonder if I will ever look as good as Mom does when I am her age." Venessa's head drooped.

Luckily for you, they were teenaged girls. Therefore, they were prone to self-doubt at just the right moment. Also lucky for you, is that girl-friends now like to up each other, so you got to hear this delightful exchange.

Rachel piped up, "Awww, Venessa don't be so down on yourself. Us older siblings have got to show a positive example!"

Huh, you finally remember that Venessa was the first one out the gate. Rachel continued, wrapping her arms around Venessa's shoulders easily since the latter was sitting down.

"You shouldn't doubt yourself so much. You've got a great body! Just look at those curves."

Rachel moved her hands around Venessa's figure, careful not to touch anything, and exaggerating her motions around the tan girl's tits. This still flustered the taller girl. Amber chimed in.

"Yeah! You've got a great body Ven-Ven! I'm super jealous."

Venessa finally pushes away the hands tracing her figure and Rachel talks up Amber.

"No no no, you're great too! I mean, even with my daily routine my ass isn't that great, but you have the best in the household, bar none, without evening trying! It's a little unfair."

Dani swoops in, and you stand off to the side just enjoying yourself.

"That might be true Rachel, but you've got a good body too! I keep trying to figure out how you get your hair to be that silky despite how much of it you have. I have a hard time with split ends and frizz if I don't keep it above my mid back. Plus, you're all sorts of cute."

Venessa chimes in, "That might be true, but none of us could really look as good as a red head as you do. Plus all of your bodies are way more feminine than mine."

The rest of the girls tackle her in a hug and you join in. You might have caused this situation after all, and you don't want any of your sisters thinking that they are anything less than hot. Dani once again speaks up.

"I think that your body is plenty feminine, right girls?"

Despite your maleness, you also agree.

You think on an idea about making it to where everyone thinks that women are more attractive or something... but then you have this strange sensation that that would be stealing, even though you're the only one with a Rulebook as far as you are aware. Oh well, you leave that idea behind and decide to fuck with the girls just a bit more. Then you were going to eliminate their remaining time with their clothes and watch the show. Then again, you were going to be affected too, but you figure knowing about it will make things just as touch easier.

As you gathered your notebooks, you used the passphrase, ridding yourself of the extra time you had. You now only had... 20 minutes!?! Where did the time go?

Still, the way that the girls acted with your old rule was undeniably hot as hell. You wanted to make a perverted rule before your nudism rule kicks in but were stumped as what to write. You didn't want to make them naked, and you wanted to seduce them. That cut off a lot of Free-use and Exhibitionist ideas. Still... You had two ideas...

Firstly, you wanted to see if you could alter the very concept of familial behavior. So you write 'Family' in a box, seeing if your change would isolate it inside that box.

"Old Rule: Amongst family, it is seen as friendly to touch any part of the body, including genitals. Touching is still sexual, but families let it slide as harmless fun as long as it is not overly sexual (such as masturbating a sibling longer than a minute), or harmful (such as squeezing a sibling's genitals too hard), and the toucher stops when asked. If it is seen as overly sexual, then it is seen as incestuous behavior. While this is done in public, it is more prominent in private."

With this, you could finger Amber in the living room in front of everyone for a minute without it seeming odd. Plus, you would get to see how your sisters interacted with each other. Somehow, you were sure that Rachel would take advantage of this. All that, and you get to keep your kinky secret relationship with Amber for a while longer!

Plus... there was this one thing that you wanted. You have always thought of this one weird thing as super sexy, but it would have been hard to find girls willing and able to do this for you in real life. It wasn't just a matter of it being weird, it was also a matter of it being biologically hard to find a girl who lactated outside of having a baby.

Plus, logically speaking, you could make it to where all the girls in the world lactated. You didn't want to, but if you could do that and somehow replace beef then you could cut a huge swath of carbon emissions and-

Duh, this would only take a second and would, by far, be the biggest change you ever made.

You wrote Humanity in another box, hoping that it would also keep the rule changes in that box.

You thought about this for a moment but decided that simple was best in this case.

"Old Rule: As soon as the harm that carbon emissions presented was discovered, all 95% of humanity switched over to green power as soon as they could. This did not harm technological, sociological, political, or any other forms of progress."

You felt all of Reality shake for a moment, clutching on tightly to your Rulebook. But, the void never came.

The first thing you noticed was the air. Oh god, the air was so fresh in comparison. Your concept of fresh air was all wrong. It was like walking outside after years of living in a sewer. You did more than just make humanity stop using fossil fuels, you made it to where it never over-used them to begin with.

You made sure to mitigate the damages, made sure that the world largely went the same progress wise, but you had made the world a better place.

What will this crazy bizarre world look like, you wonder, as you walk down with your notebooks.