Katie kept walking, pushing through her tween years. She got taller and thinner as the last of her baby fat drained out. As she finally hit her teen years at 13, she felt a tingle in her chest. She looked down to see that her nipples were making slight indentations in her tank top. As she walked, her nipples rubbed against her tank top more, feeling more sensitive as they did. The areas around them started getting more puffy as tissue began forming. "I'm growing boobies," said Katie, her mind expanding to explain what puberty is. The discomfort faded as a training bra appeared under her tank top, comfortably cradling her nascent breasts.
Feeling a slight discomfort in her breasts, she immediately hit the stop button and the treadmill slowed down. Once she got off it, she looked to herself and could see that she was looking like a kid crossing the thresh hold of teendom. While she no longer has baby fat, she looked a little weird with a puffy chest on her tank top, the slight curves, and gangly arms and legs. Even her face was looking weird as while she still attains some form of cuteness, looked like she was going through her awkward phase with braces on her teeth, faded freckles, and a pimple dotted on her cheek.
Looking to herself, she couldn't believe how much she changed as she was no longer the young eight year old kid she once was, but instead a pre-teen in her most embarrassing of phases. "Wow... That is so weird. If this is what I look like as a pre-teen kid, I could only imagine what happens when I become a teen, or an adult." she said with her voice cracking as she was crossing between childish and low.
Katie soon wondered what to do now that she's a pre-teen. After all, she is still a child and there were certain limitations with her age.