Lisa opened her bedroom door. She was going to talk to Megan. By her calculations, she and Megan needed to figure out how Jessica grew so much in one afternoon! She was NOT going to stand for her little sister shoving her around. This had to change RIGHT NOW, she decided. The balance of power between the sisters had shifted, and she didn't like it one bit.
Lisa walked over to Megan's room and peered through the doorway. She saw Megan in front of the mirror, and did a double take. Her sister's breasts were growing before her eyes! Lisa's jaw dropped. Megan's A-cup breasts became Bs, going from small bumps in her t-shirt to aesthetically pleasing swells. They continued to push the cotton fabric further away from her body as they grew, filling out to curvaceous Cs as the hooks on the back of her bra bent and snapped. Still, her breasts grew.
Megan's breasts finally stopped at voluptuous D-cups. She pulled off her shirt to get a better look. Her modest bumps were now stunning swells of feminine flesh, jutting proudly in front of her still relatively small body. She slid the broken, outclassed bra off her shoulders and onto the floor. These things were amazing! Full and firm, they were perfect hemispheres on her 5'4" frame. She turned slightly to each side to admire her beautiful new breasts.
Lisa felt jealousy surge within her. First, Jessica grew taller than her. Now, Megan passes her in bust size? Her B-cups had been a source of pride, the largest of the three sisters. Now, however, they looked insignificant and vastly inferior to those of her older sister. Lisa realized with horror that she was the smallest and possibly the least developed of all three sisters! How was this happening?!? She needed to learn their secret. She needed to be better than her sisters. She had to figure this out!
Lisa's eyes scanned the room. What was new? What was different? Finally, they landed on the book. It was a large, leather-bound tome that she didn't remember seeing before. She thought back. Wasn't that the same book that she had seen Jessica place on her dresser when Jessica had arrived home today. Lisa was fairly certain that it was. That book must be doing this! She had to get her hands on the thing. She needed her body to surpass those of her sisters again!
Not wanting Megan to notice her, Lisa slipped quietly away from her doorway and back to her room. She plotted what she would do to get the book back after her older sister had fallen asleep.
***
That night, after Jessica, Megan, and her parents were fast asleep, Lisa remained away, biding her time staring at the ceiling in her room. She listened for sounds through the wall in Megan's room next door that might indicate that her sister was awake. Hearing nothing for a good hour, she decided that it was time. She slipped out of bed and crept quietly to the hallway. She approached Megan's room and quietly opened the door.
The hinge on the door squeaked! She stopped, cursing silently. After a moment, she pushed the door open a bit more. Then a bit more. Finally, she pushed it open enough to slip through. She darted quietly into her sister's room. Her eyes struggled to see in the darkness, but they saw her sister's now-curvaceous form in the bed, under the blankets, eyes closed. Whew! She looked to Megan's desk. The book was still there. Good!
She crept to the desk and slid the book slowly into her hands. Clutching the book, she crept back out of Megan's room and quietly closed her door. She went back to her own room and locked the door.
Plopping onto her bed, she opened the book and flipped through its pages. In the middle, she glanced down at her body several times as she leafed through the book, but nothing seemed to be changing. Maybe she had to read a story? She turned the page to the start of one of the short stories.
Long-Legged Lucy
She began to read. Shen she finished the story, she glanced down at her body again. Nothing.
Wait! Her legs began to feel tingly. She watched her bare legs with fascination as she felt them begin to grow. They grew longer, shaplier, more muscular, smoother, sexier. She watched four inches of luscious length grow, making her already short pajama boxers look tiny as they revealed more and more of her polished upper thighs. Her calves were firm and curved. Her new legs looked as if she had played soccer and danced ballet for the past five years to sculpt them into perfect feminine form.
Lisa smirked in satisfaction, as she thought of the short skirts she would be wearing to show them off. Her smirk turned beatific as she thought of how she was going to rub her new, superior height and gorgeous gams into Jessica's face in the morning. If she could just match Megan's new breasts...
Lisa looked in the book again, but she frowned as she realized that all of the pages were now blank. Could she only use the book once? Would it recharge at some point? She didn't know. But she would definitely find out. She took the book and put it in the top drawer of her dresser, piling clothes above and around it until it was completely hidden. Then, she went back to her bed and fell asleep, thoughts of showing off in tantalizing short skirts in front of the cutest boys at school coloring her dreams.