Nicole shut the book and turned to Malcolm. "Do you have any ideas?"
"I've got a few, though I must say, you're perfect just the way you are."
"That's sweet, but you showed me this so we could have a wider range of sex." Nicole grinned. "I've got an idea."
"Please, do share," Malcolm said.
"Well, first, do you like shrunken woman or giantess porn?"
"A bit. Where you going with this?"
"Give me a minute. Second, you clearly are a breast man if the first change you made was to the number of tits a girl has. So, do you have a breastfeeding fetish?"
"A little one maybe?" Malolm replied, unsure where she was going with this.
"Okay good."
Nicole grabbed the book and opened it. Thinking of what she wanted, she turned the page. On the page before was everything anyone could want to know about lactation.
"You're gonna change how women lactate?" Malcolm asked.
"Maybe later." Nicole turned the page again. This time, it was everything you could ever want to know about her. Her entire biography up to that point, every like and dislike, detailed information about her sex life, etc.
Malcolm looked over her shoulder but she shooed him away. Picking up the pencil, she added a new paragraph into her biography. She wrote: "On her thirteenth birthday, Nicole discovered that she had an amazing ability. She coould change her size at will. It started with her shrinking to a foot tall. Then she tried growing back and upon succeeding, she experimented more. She learned she could shrink and grow her whole body, any part of her body as well as anything she touched and concentrated on. She keeps this ability a secret, using it only in private or with people she explicitly trusts." Putting down the pencil, she watched as the page rearranged to accomidate the new information.
"Okay," she said, "all done. Ready for some variety in our sex?"
"What did you do?"
"Watch."
With that, Nicole first increased her breasts a cup size. Then, before Malcolm could respond to that, she shrunk to a foot tall. Malcolm knelt down to look at his tiny friend. She just stood there and grinned up at him.
"What do you think?" she asked.
"So you can change size at will?"
"Yeah, since I was thirteen. And... since just a few minutes ago. You know how the book works."
"Yup. Hey, can I pick you up?"
"Sure can. Just be gentle. I didn't make myself impervious to pain or damage."
Malcolm set his hand down in front of Nicole. The doll-sized girl nimbly climbed aboard and Malcolm carefully stood, lifting her to his waist height. Then he took her over to the table and gently set her down. Then he took a good look at her shrunken form.
"You grew your breasts?" he asked.
"Yeah. What do you think?"
"You make an awful cute doll. Can you only change your own size, or can you grow and shrink other people?"
"Both. Want me to shrink you?"
"Not yet. Let's play around with this first."
"Okay."
The two of them played with the shrunken Nicole for a couple hours. She shrunk some clothes for herself, she rode on what was now Malcolm's monstrous dick, Malcolm held her in his hand and licked her pussy. When it was time for lunch, she returned to her normal size.
Smiling, she said, "Did you have fun?"
"Yeah, I did," Malcolm replied, grinning.
"Good. After lunch, it's your turn. Do you trust me to be gentle and return you to normal when we're done?"
Malcolm thought for a minute. "Yeah, I do."
"Great, let's get lunch then."