A threatening amount of lewd (4 sisters, minor lust enhancements, ???)

You took another few minutes to do some real soul searching. Not over the morality of all this, but more in line of what exactly you wanted out of all this. Normally ideal situations are outside of your grasp, but your Rulebook kinda makes that a moot point. You did have an **** fetish, but were you really up for fucking your own sisters? Even if you knew in the back of your mind that they were people that you brought into existence, they would still be your blood. No need to make nympho-sisters if you weren't ever going to touch them after all. Of course, you could just Rule yourself into being able to enjoy real ****, so the real question is is that what you want? You suppose that you could just have a twin to be your partner in crime and never touch her, instead showering her with beef-cakes or hot chicks if she is into girls.

Thinking on it, you decide that you're totally going to bang your sisters if you have the chance. Maybe if you hadn't read Oreimo all those years ago, they would have stood a chance. As it stands you will be fucking them so you really just have to decide how much you want to work for it. You could make them **** sluts for their brother, but that just seemed a bit too easy. Giving them an **** fetish was a bit more in the ball park, but you would still have to seduce them. Actually, now that you think about it, you have a perfect Rule idea for this. You open the book to a random page and write these rules.

"Old Rule: All sisters of Vincent Ivy shall have an **** fetish. They will be able to get over the taboo nature of ****, but it will still take time and seduction. "

Annnnnnd:

"Old Rule: All sisters of Vincent Ivy shall share at least 30% of all his fetishes, not counting a fetish for ****."

Boom. Sure, you were stacking the deck just a touch in your favor but isn't important for siblings to get along? It was better this way, right? Oh, and you can't forget some protection:

"New Rule: **** does not cause any complications for those of this household. This is unknown at first."

You were rushing, you knew. But you were so ready to meet your sister(s) that you could hardly wait. You still wanted the thrill of the taboo, but you also didn't want any children to end up with malformities if your sisters get pregnant.

Now there were only two choices ahead of you... You decided against the waifu sisters, as that would take extra time and you were already at the three-hour mark since you wrote your rule. Honestly, where has the time gone? Too many contingencies needed to be made so that the transition would be painless. Perhaps you could add more siblings or aunts if you wanted some real life waifus (again, short for favorite female character).

Now it came down to the amount. How many wonderful twin sisters did you want? You didn't need to think on this, you knew in your heart what you wanted. With a small apology to your Mom, as you are sure this won't be (wasn't?) pleasant for her, but you wanted this too bad for too long.

"Old Rule: Vincent Ivy was the only male born in a set of quintuplets. Despite the multiple births, their mother had a tiring but healthy pregnancy and labor, with no complications. She and all her children including Vincent lived."

You lifted your pen, expecting the walls to faze and shift into a large room filled with girly stuff.

{MUSIC SUGGESTION}

Instead what you hear is an ear-rending noise, the walls and floor crumbling away into a white void. As you scrambled, you held the Rulebook tight against yourself. You knew this had something to do with your latest rule change, so you held on no matter what. Your arms and chest began to burn as the book glowed white-hot. Searing pain coursed through your body all over as the world completely became a white void. You felt a massive pull downward as if someone was dragging you down further into the void.

A dark shape flitted out of your vision. You didn't ask for this! You just wanted a few semi-lewd sisters, not a damn ****-scenario!

You held on to the book, now brightly lit with a rainbow of colors as you felt more than saw time unravel before you. A faint noise could be heard in the distance, and a shape showed itself briefly in the corner of your eye.

Your arms felt like they were melting as the book's heat burned your arms and your muscles quickly tired of holding onto the only life buoy in the void that was once your room. You pried the book open, the weight akin to lifting a boulder. The you before you improved your family couldn't have survived for this long, let alone open the Rulebook.

Like moving lead, your arms responded to your **** need. Light poured from the open tome. The colors you 'saw' were no colors that you'd ever seen. Some were so dark, that it seemed to bend light around it. Surrounding that darkness was a color so bright that it seemed rigid and warm. Something in the back of your mind told you that the two together were Time. A third color didn't even register as a true color for a moment, more along the lines of being the sheer concept of color.

It hurt your mind to look at, so you closed the book.

But the effects were apparent, as the once white void was filling with colors that you could understand. You hoped that this meant that the worst of this nonsense was over and that you could go back to reality soon.

You saw the shape again, this time in the center of your vision. It was rapidly becoming larger and larger. You were not quite sure how to describe it, but if you had to... Well, you would start with a dragon. But, it wasn't just a scaley bastard, there were things that were hard to identify. Then it started clicking in your mind: Trees. Not just any trees, but the truest expression of trees. The concept of Trees. It wasn't the only one. Water, earth, fire, stars, lava, stone, happiness, ****, sex, music, taxation, and more. It was hard for your head to wrap around, but this dragon was made of purely out of Concepts. Then, it hit you.

This dragon was the Concept of Reality.

And it was rushing at you like a pro-baller.

{SFX}

Ohhhhh SHiiiiiiiiiit!

Just before it hit you, it's mass taking up all of your vision paradoxically from all directions, the book cooled down and you were back in your room.

{End Music}

You blink, barely remembering the ordeal outside of the Conceptual Dragon and that the book moved on its own. You look down, a black page with white lettering staring back at you.

Altering the circumstances of your birth can cause temporary reality shredding. Please be careful.

Huh, it seemed that in giving yourself 4 sisters, you caused a hole in reality. You look at the clock. It seems that you time traveled an hour and a half backwards. You look down again to see the black page was gone. Your rules were still all there, including the one that altered your birth. Though, that one was written in ink now. Something told you that it was stronger than normal ink, that it was... Conceptual Ink.

There was no taking this back or altering it.