Katie wondered just how old she would have to be to not need a babysitter. Frankly, she felt that 10 would be old enough to be able to look after herself while her mom was at work. Though knowing her mom, Katie would have to be 13 at least. And Katie wondered why she should stop at 13. From what she heard, the really cool teenage stuff starts at 16. Well, she was already halfway to 16 now, she may as well grow the rest of the way.
Katie considered her words carefully. Her clothes were already a bit tighter on her from aging just one year. Growing 8 years would definitely make them too small and rip off of her. Katie looked at the ring and said slowly, "I wish I was 16 years old, body and mind, and my clothes changed to match me."
Katie felt a warmth from the ring and felt her body tingling. She soon saw her body growing in the mirror. She was in the double digits in a matter of seconds. Her remaining baby fat was draining away, leaving her with a more slender body. Her freckles were fading away as well as her face became less round. Her clothes grew a bit tighter on her, but not unbearably so. Her black leggings shorts became proper shorts that left a bit more of her legs bare. Her green dress was pulled up above her waist as it became a green tank top. Her Mary Janes expanded into normal trainers as her anklet socks went a little further up.
Katie went through her tween years before hitting 13 and, the word suddenly popping into her head, puberty. Her nipples stood out straight before the areas around them started puffing out. A training bra soon materialized in her tank top. A tingle went through her pelvis as her hips started growing out. A few pimples appeared on her thinning face, but they thankfully soon vanished.
Katie moaned as she put on more height, her voice getting deeper. Her training bra was now a proper bra as they contained her expanding breasts. She could already see a bit of cleavage at the top of her tank top. Her hips were also getting fuller as her butt was starting to fill out. Her legs went from stick-like to shapely as her thighs started filling out. Most of all, Katie could feel her womanhood blossoming between her legs.
Almost as quickly as it started, the aging stopped. Katie looked down at herself and at the 16-year old in the mirror. She had gone from a little girl to a rather attractive teenager. Her face was more oval-shaped, with a longer nose and fuller lips. Her brown hair had grown quite a bit, her loose hair now down to her chin while her ponytail touched the middle of her back. She was in a fit shape, not showing too much muscle, but no extra flab. Her hips and, she now thought, ass were rather cute for a teenager. She held her boobs and squeezed them together to create a deeper cleavage. She had to be a large B cup, almost a C. She could tell she still had some growing to do in that area.
Katie smiled at her reflection and said, "Yeah, you look sweet at 16." Her voice sounded maturer to her own ears, definitely not a little kid's voice. She certainly didn't feel like a little kid. Her head had expanded with basic high school knowledge, including a tenuous knowledge of how to drive a car. She was also quite aware of what sex was and that she could be a rather popular girl at high school just from her looks.And she had a good feeling that she was going to get even hotter with age.
Katie glanced around her room with increasing distaste. What had been a little childish to an 8-year old was now totally juvenile to a 16-year old. None of her old toys appealed to her now, she was way too tall for her desk and the homework on it looked so trivial. Only her bed looked like it could support her new size, though Katie doubted it a little. And she couldn't even look in her closet. Even if everything it was way too childish for her tastes, she couldn't possibly squeeze into them now. At least she was able to make the clothes she was wearing change. There was plenty of alterations she could do before the babysitter gets here.