John in his early 30s, who wishes the sexes were more similar.

John has always loved breasts, particularly large ones. This was no secret to anyone who saw pictures of the five women he had dated in his life. They all had a few things in common, curves and particularly large busts.

What was a secret was his desire to have a set of his own. Along with desire to know what it felt like for a woman to have a penis inside her. But one thing at a time.

With this book he could make women he found attractive more common, something that was on his mind recently as he'd been single for over a year, he couldn't find someone that was his type physically and personality who didn't have kids. He wanted kids, someday, but didn't want to deal with someone else's. Hell he could make a rule to make the woman he would be most compatible with show up, so they could meet.

But. The first thought he'd had was of breasts of his own. As soon as he saw the barista's breasts peeking out around the sides of her apron, jiggling with each step she took. All he could think of was having a set of his own.

"New Rule: All Human's have enlarged breasts, which develop during puberty."

He felt a strange warmth and pressure on his chest, then some weight. Then it stopped. He looked down, dissapointed at what he saw there.

They were perfectly average breasts for his body size, if anything slightly above average. They moved and tugged at him a he leaned forward slightly. Jiggled when he moved suddenly, their inertia and softness making them lag just a little behind what his torso did. His nipples were larger, poking little tents in the front of his shirt. The fabric of what had been a very comfortably loose shirt wasn't even pulled tight over them, just loose anymore. The shirt hung off them making him look larger overall and obscuring the size of his bust somewhat.

He was so focused on his breasts he didn't even look around, before writing another rule. First the one he'd planned to add after the first one, then one to 'fix' his shirt not being nearly tight enough.

"New Rule: People attracted to men find breasts as attractive as people attracted to women."

"New Rule: John Doe, who wrote this rule has the largest breasts he can comfortably live for the rest of his life with as he writes this rule, they will not change size over time, except in natural ways."

That did it. He felt the warmth and pressure again as the weight on his chest increased, he brought his hands up to cup his growing bust and discovered how sensitive they were. His palm slid slightly across his nipple as he adjust to keep cupping them as they grew, sending a little shock of pleasure through him. They felt incredible. His shirt rapidly got tight and started to stretch. He could feel it across his back and bust.

But all good things come to an end and soon his bust reached it's final size. His shirt was very tight now across the fuller parts of it, they sat heavily on his chest, he could feel their weight pulling on his shoulders. The lag effect of their inertia was magnified and if he turned they actually pulled him slightly sideways before rebounding. They were massive. Bigger than any of his ex-girlfriends.

Finally he looked around the cafe.