The moment Erika reached Maria’s proportions, the dynamic felt like it started changing, and against the latter’s favor.
For Erika, it was a dream come true. She was as big as her annoying older sister, so she couldn’t push it around anymore. And with how fast she grew, she could quite possibly bypass her soon.
Which was exactly Maria’s nightmare.
Erika started burrowing her older sister’s clothes (against her permission), as they perfectly fit her at the moment, and it made her sister extremely annoyed.
When people saw the two together in the street, they confused them either for twins due to their bodies, or for sisters with a tiny age difference of a bit over a year due to Erika’s face being slightly more youthful.
“Just wait until they’ll think you’re the little sister” teased Erika, while staring right into her sister’s eyes.
After that event, Maria started wearing high heels, to still appear like the bigger sibling in some kind of way.
Erika didn’t appear to only change physically. It seemed that mentally, she was now more comparable to a 15 year old than to an 11 year old.
She was the best student in her grade by far. With how out of place she was in looks and knowledge, the school considered moving her up multiple grades.
She was also more mentally developed sexually. She became interested in boys, and her private parts became more sensitive. At night, she commonly pleasured herself with her body, when she didn’t think anyone was around.
Boys around Maria’s age started to flirt with her as she blossomed, not knowing her true age, and she flirted back. That part truly made Maria boil in anger.
But even though she was more mentally mature, Erika still stayed playful against her sister, and her will for revenge stayed just as strong.
A week after Maria bough her heels, she couldn’t find them anywhere.
“Erika! Where did you put my heels?” She asked annoyed. That brat isn’t even going to give her the height advantage.
“Oh, I just wanted to try them on for a bit” she heard a voice entering the room.
It was Erika, towering over her with the same 4 inch heels she was looking for.
This actually scared Maria, to look up so much as her younger sister.
“You bitch! Give them back!” She shouted
“Alright, alight” Erika replied. “I just wanted to see how you’ll react”
“And to see how it’ll look like soon enough, LITTLE sister.” She added as she finished removing her heels and stood barefoot.
She was looking down at her older sister, standing an inch taller.