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Chapter 4 by Ggnt
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Dorm room experiments
On the walk to the dorm Ken’s mind was swimming in possibilities. With this rulebook they could do anything they wanted to…if they could all get along. His biggest fear was being locked out by the other two. He felt close to both of them, but at the same time he was the odd man out. Literally. Looking back he may have gone too far by making them both topless right away, they would certainly have their guard up now.
Not that he intended for them to need their guard up. They were his friends and he wanted them to enjoy it just like he did. He wasn’t going to try and gain sole ownership or put them in any uncomfortable citations. Well no more uncomfortable than he’d already done at least. He didn’t want to exclude them, just like he didn’t want to be excluded. He hoped Sierra knew it was just a prank, and that she could convince the stiffer Mira of the same.
They arrived at Sierra and Mira’s dorm room. The two of them were roommates, and Ken lived on campus in a separate building. “So what now?” He asked, plopping down on Sierra’s bed.
“We test. Scientifically.” Mira said. “We need to know what it can and can’t change. How it changes us. We should write out a list of things to test and then slowly go through one by one.”
“Oooooor…” Sierra drawled, “We could…WING IT!”
She quickly scribbled something in the book.
Ken leaned forward to see what she’d written, only to suddenly feel a breeze. He looked down, “AH!” He was naked. Totally naked. He quickly covered his cock with his hands, “What did you do?”
Sierra flipped the book around so show him.
Duncan Hall Room 213
Old Rule: Males must be naked inside this room.
Ken took a deep breath. Fair is fair. This is just a prank. “Ok…so because I was already in here, my clothes disappeared. Because I would have been required to take them off before coming here. What…and I can’t believe I’m saying this…what if it said men can’t enter?”
Sierra tapped the pencil against her chin, “Hmm…let’s try that next. First, I want to know where your clothes went. Surely you didn’t walk here naked. And what do the non-owners of this book think of the fact that you're nude.”
“Can't I just have my clothes back?” Ken asked.
Mira walked over to Sierra’s closet and threw her housecoat at him, “Just cover up, please.”
Ken caught it with one hand and tried to put it on, “I…I can’t.” He admitted. It wasn’t that he didn’t want to. He couldn’t. It was against the rules.
“Very interesting…” Sierra said. Suddenly she walked over and opened the door.
“HEY!” Ken complained.
Sierra ignored him and stepped outside. She saw an acquaintance walk by, “Hey Tina, don’t you think it’s weird that Ken took off his clothes before coming into my room?”
“Huh? No? That’s the rule, right?” Tina said quickly before moving on.
Sierra noticed a bag dangling on the doorknob. She grabbed it and stepped back inside, closing the door. “Here, your clothes.”
“I can’t put them on until you erase that rule.”
“Oh fine.” Sierra erased it. Instantly Ken was dressed again, the bag on his lap disappearing.
“It’s my turn, only fair.” Ken said, holding out his hand.
Sierra hesitated, but gave it to him, “But no nudity. You already saw us!”
“No nudity. I promise.” Ken grinned. He had been about to write something tame and completely non-sexual, but she’d practically begged him.
Duncan Hall
Old Rule: At the start of each semester female students are required to have their bra size measured to compare against their roommate. The roommate with the smaller chest may not disobey the bustier one.
Ken finished writing and flipped it around to show them, “See, no nudity.”
“Bra size? Seriously? What are you, 12?” Sierra asked, rolling her eyes.
Mira was silent for a moment, then suddenly she had an evil look in her eyes. She grinned at Sierra.

“Sierra apologize.”
“I’m sorry.” She said immediately.
“Sierra do the chicken dance.” Mira ordered.
Sierra obeyed automatically, “What the hell? I can’t stop…I hate you both!”
“Oh my God, that’s amazing!” Ken said.
“Stop, you can relax.” Mira said. “So we can use rules to completely overpower free will…”
“Apparently so, now give me that book.” Sierra said.
Ken wasn’t going to fight it and was about to release his grip when Mira took it instead, “No, it’s my turn.”
Mira looked at the book, “So we can change our clothes. Change our wills. Can we change…ourselves?”
New rule: Mira Chowdhury is 6 feet tall
Mira’s body instantly transformed. Her clothes didn’t stretch with her and she was incredibly thin, but there she was, 6 feet tall.
“Holy fuck.” Sierra said.
“So new rule…your photos are all the same. Nobody but else knows you’re tall yet. If it was an old rule…” Ken speculated.
“Then everyone’s minds would change.” Mira finished.
She erased the rule changing her height and shrunk back. She looked at Ken, “Sorry Kenji.” She said preemptively.
“Wh-” Ken didn’t finish. Mira had quickly scrawled something on the page and he felt his body change.
She looked down, “Holy crap. I’m a girl!” She grabbed her breasts, “What the hell?”
“We said we'd try it next, remember? Old Rule: Men Can't Enter Duncan Hall. I'm not sure how it would effect non-owners, but it seems that since you were already here...so. Tell us Ken, have you always been a girl?” Mira asked her.
Ken shook her head, “No…I remember…fuck. I remember things twice. As a man and as a woman. I think it’s that first rule we wrote, we always remember the original world.”
“But everyone else will only remember Ken as a woman…okay, this is getting freaky. Wait, she’s got a small chest. Make her do something. Flash us!”
“But I don’t want to see that,” Mira said. Sierra kept begging so she rolled her eyes, “Fine. Ken, flash us.”
Ken cringed, but nothing happened, "Ha! I'm not your roommate!"
"Damn." Sierra said.
Mira grinned, "A quite edit...Ken flash us."
Ken found herself **** to obey, she lifted her shirt and quickly flashed her friends.
"Damn, now erase that, both of them!" Ken pleaded.
Thankfully Mira did, erasing both her rule and Ken’s.
Ken put his hand between his legs, “Oh thank God. He’s back.”
Sierra took the book from Mira, “Hmm…as an apology…”
She quickly wrote in the book.
Ken immediately felt the change. He stood up and looked down. His cock was suddenly far too big for his pants. “What the…”
“Show us.” Sierra said with a wink.
He hesitated, but he was too curious. He pulled his pants down swiftly and his cock sprang free. His entirely too large cock.
Mira was staring, unable to look away. Sierra reached out to touch it without even realizing what she was doing. He flinched as she made contact and she looked up at him, but didn’t let go, “Sorry I just…”
She trailed off, then finally let go of him. She sat back and looked at his cock, “So that’s the biggest cock in the world? I think it’s too big, I mean…can he even have sex with that thing?”
Old Rule: When Kenji Whitmore turned 18 his cock started to grow until it was the largest in the world
Ken blinked. Again he had two sets of memories. “No…I can’t. Fuck. I’m a virgin again!” In his new memories his impressive bulge had attracted some women to him, but every time he revealed himself they got too scared.
He grabbed it and quickly erased that rule. Then he realized he was still standing there with his pants around his ankles, blushed, and pulled them back up.
“Well…that’s enough penis for one day.” Mira said, “Ready to try things my way?”
Currently Active Rules:
Global:
New rule: Sierra MacLeod, Mira Chowdhury and Kenji Whitmore are the owners of this rulebook. They will always remember the world as it was before any rules were written.
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The Rulebook
You find a Rulebook that lets you rewrite the rules any organization has to follow
A lucky protagonist stumbles across a magic book that lets them rewrite the rules.
Updated on Jun 19, 2026
by Ggnt
Created on Jul 27, 2017
by ashes2ashes
You can customize this story. Simply enter the following details about the main characters.
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