Sarah new while being with this guy that if she turned the lights on he might get the wrong idea about her age. So she decided to try and wish to be her original age. She felt the glow but also felt the stretching sensation. She was turning 17 again. The stone seems to have its safeguards. But what would she do, now that she's a minor and clearly fucking this guy. Sarah said "Oh yes baby come..." but before she could finish she heard how different her voice sounded. She quickly kissed the guy and kept moving her hips.
Getting younger sent these waves of pleasure across her body. Eventually she came, but he was still going. In and out over and over until he pumped his cum all up inside her. Laying there in the throws of pleasure Sarah meant to make her escape. But the guy got up. And started walking over to the light to say goodbye. That's when She decided to make another wish, to be able to teleport. And went back to her apartment, now 16.
Originally Sarah stood at 5' 6" with B cup breast, a rockin ass, and light brown hair. Though the hair darkened during her senior hear it was returned to its natural color. But now in her diminished form it was back to sophomore year of highschool. Her breast were barely developed A cups, she was only around 5' 2" and had small freckles on her face.
Walking around her apartment she didn't know what to do. She could only get a crappy service job. Maybe pass as an adult so there isn't suspicion about missing school. Or maybe this was her chance to restart life and do what she wanted to do? But how? She would need a place to live if she wanted to go to high school again. And have the logistics of daily life taken care of. Maybe if she used the stone again she could make such a wish.