As the two sisters left the mall, Katie realized she would need to drive, and couldn't give herself away to Kellie. She wished that her mind could be old enough to have driving experience, and suddenly, it was. She noticed that Kellie walked to the driver's door. "What are you doing? You don't know how to drive. I know Mom needs to start taking you out to learn, but I can't do anything about that."
Kellie was struggling to deal with this new reality, but she drew the line at her independence. "Of course, I can drive!"
"Right, you're still going on about that 'being the older sister' BS? I'll tell you what: If you can start the car and put it in gear, you can drive us home."
Kellie was elated. This was her chance to show that she's telling the truth! She got in the car, and... her mind went blank! She fumbled around, eventually getting the key in, but couldn't think of what went next. She knew to turn the key, but was there something else? She turned the key, and it worked! But then, she looked at the stick shift. She had no idea how it worked. How? She drove here! She tried to move it, but then a horrible sound came from the car!
"Woah, there! I think that's enough trying for today. Mom needs to teach you how to not grind the gears." Katie was pleased that her wish to reduce Kellie's experience worked. "My turn."
On the car trip back, Katie decided to take it further, and wished herself 10 years older. As she drove, her body matured from teenage to co-ed to adult. Kellie's old clothes fit much better now, as her hips widened into a fully adult figure. Her ass was much more seductive Looking in the rearview mirror, her face was not one that could be mistaken for a child. She gave a smirk, and it was effortlessly sexy. She glanced back to Kellie, a teenager in bloom, but lacking some of the definition that comes with maturity. "So, how old are you 'supposed' to be? My age? Older?"
" I'm..." She couldn't even imagine herself older anymore! But she did remember Katie being 15. "I... I'm supposed to be 17, and you're supposed to be 15." She looked over at Kate, and was horrified to see her becoming even older! "Kat! It happened again!"
"What, did you get younger? Are you 'supposed' to be 21 now? That's a fun age. God, 15 was so long ago!"
"No, you got older! You were just 17, and now you're... old!"
"Well... thanks for that, but I'm only 27."
27? Why did that seem so old to her? It's like all adults are either old or REALLY old to her! She again tried to imagine an older version of herself, but it was all only what a young teen would imagine. She tried to think of adult things, but alcohol seemed disgusting, and sex seemed like a scary/exciting concept on a faraway shore. She sat the rest of the car ride in defeat.