But the feelings of the doll’s body on that ‘magic wand’ proved too much for Samantha. There was a weird pressure inside of it as the rod hardened and not knowing what to do she just let it go. From one moment to another the feelings intensified and spread throughout her whole body, biting her lip hard enough to nearly draw blood. But Samantha would be lying if she said she didn't enjoy these weird new sensations and wouldn't mind feeling them again. During that she felt something flowing through the wand and Samantha saw a bit of sparkling, white liquid erupt out of the mushroom-shaped tip.
“What is this stuff that just came out of my magic wand?” Samantha asked while slightly panting.
“That’s your ‘mana’, of course,” the fairy cheerily explained while still lightly touching the magic wand she was sitting on. “It allows you to reshape things however you please. That's your power as a magical princess. Look.” She pointed at where some of Samantha’s mana had dropped on the carpet. It wasn't wet or sticky or even fluffy anymore, said spot was now covered by a shiny sheen. Touching it with her hand confirmed that this part of the carpet has turned into some kind of squeaky rubber.
“Wow!”
“And it gets even better,” the fairy added. “You can form it into anything you want, assuming enough mana is available. Imagine it turning into whatever you want.”
Samantha thought really hard and watched as the patch of rubber carpet turned into a patch of grass, even with a flower growing out of it. It was still completely made out of rubber though.
“Wow!” The magical girl was amazed at what her magic wand could do. With it everything she ever wished for could come true. She could become a real princess… and fulfill all her pleasures. She shook her head for a moment at that weird thought, causing her eyes to fall on the mushroom-shaped wand protruding from over her pee hole. Something in the back of her mind wondered what it’d feel like, if she inserted something into that hole, but she ignored it for now.
Out of curiosity she wiped away the rest mana from the tip of her wand with her right pointer finger, the touch giving her a bit of that good feeling again. She felt a funny tingling in said finger and watched as the mana spread around (and through) it, making it appear rounder and shinier. Applying what she had just learned Samantha focused on her rubberized finger and saw it thinning, stretching and changing color. In the end she left the squeakyfied digit in a normal shape, but in a bright pink color to fit her top, contrasting the rest of her white silk-gloved arms.
The fairy doll couldn't help but smile, as she continued observing Samantha. The girl was exceeding its expectations with her development. A creative mind and a fast learner. Soon she would realize her true purpose, but before she’d like to have a bit more fun playing with her innocence. She was going to enjoy watching this magical girl. The doll addressed her student again from her perch, Samantha’s futa penis, of course she wasn't aware of that little detail yet. “So, Samantha, now that you know how your magic works, what do you want to do with it first?”