Nick grinned as a new plan came into his mind. "Why not have a twin sister!" he thought to himself. He was tired of being the little brother, and making her his size would be fun. He always wondered what it would be like and it would be fun to mess around with her as much as mess with her. Selecting her, he changed her age to 10 years old like him, and selected a few other options to not only alter reality around her, but make her unaware of the change. He figured he could deselect the aware option later and then tease her about it. In terms of her personality, he decided to keep her mental state similar to the way she'd been as a 10 year old, but just alter it to suit this new reality.
Feeling excited, he took a breath and selected to begin the transformation. Almost instantly Valerie began to change. He watched as her body began to shrink as she sat at the table, her feet leaving the floor. Her breasts that she was so proud of pushed back into her chest, until she was flat as a board. Her body began to become more lythe and lanky, losing its curves, her face rounding and becoming more childlike. Freckles reappeared around her face as her hair shrank back to her neck. Her nails unpainted themselves, and her ears became unpeirced as the earrings vanished. He saw her eyes brighten as she started to swing her legs, her shoes starting to fall off, until they clattered to the floor.
He watched as they shrank down to become pink high top sneakers, her socks softening and lightening into childs socks. Her jeans shimmered and altered into a pair of tights with pink polka dots and her shirt transformed into a blouse. Her hair kinked back into a ponytail as a ripple surrounded the house. All the pictures of her altered to show her at his age, and elsewhere her room altered into a little girl's room. A backpack for elementary school appeared by the door, and other changes happened.
Within a few moments where once his older sister had been, now Nick saw his twin sister Val.