Two weeks have passed since the spilling incident, and Erika felt that her clothes were too tight.
Going to her mother, she complained about it. That’s where her mom noticed something about her daughter.
“Honey, I think starting to grow up into a young and beautiful woman. You have two little bumps on your chest, and you look to be taller than before. Let’s get you measured and see just how much you blossomed”
Erika’s mom put her daughter next to a wall, grabbed a tape measure and measured her height.
“Looks like you’re 4’8 now, dear.”
Erika was surprised about that. She was always short for her age, and she was measured at 4’6 two weeks ago, a day before the incident happened. Did she grow these two inches because of the liquid that she accidentally spilled on herself? Surely it isn’t related, right?
“Since you grew so much, let’s get you some new clothes to match your growing body” her mother said
Erika returned from the clothes shop excited, with new clothes and an AA cup bra.
At dinner, with her parents and her sister, Erika told excitedly about what her new clothes.
“Whatever shrimp, you got a lot more to grow into before you can compete with me” her sister Maria said as she put her arms beneath her breasts to emphasize them.
Unlike her younger sister, Maria was developed for her age. At the height of 5’10, she was the tallest female in the family (their mother was 5’8), and with D cups, she had breasts as big as her mom. She made sure Erika remembered all of the time how small and underdeveloped she is next to her, with constant teasing and bullying.
“Maria, stop that” their mom told.
“It’s not my fault Erika has no chance of become as hot as I am” Maria teased
“Maria!”
“Alright, alright, I’ll stop” the older sister lied
Time continued to pass, and Erika continued to grow.
By the end of the month, she overfilled her AA cups into an A, and reached 4’10, an above average height for an age.
Another month had passed, and she reached 5’2 with B cups. Her body was also more curvaceous, and her face resembled that of a 13 year old more than that of a girl her age.
It became clear that her puberty wasn’t normal. Erika started to suspect that the liquid is in fact responsible for her growth. How else would she grow 8 inches and go from a flat chest to B cups in 2 months?
But she didn’t tell anyone about it. If she told their parents about it, they could have possibly found a solution to it. They were already worried about her growing far faster than any girl her age should, and brought her to doctors only for them to find nothing wrong about her puberty. It was for them it seemed to have been done by an unknown force, without any reasoning to how that happened.
But Erika herself wanted to continue growing. She wanted to make pass her older sister, so she’ll finally stop teasing her about it.
And as she grew, Maria became more and more aware about that future competition, and made sure to constantly brag about her body to her sister and make her life a nightmare to put her down.
But that made Erika excited. Her sister was afraid of her catching up! She hoped that the liquid that was spilled on her make sure it’ll happen…
Two more months have passed, and Maria found her rummaging through her closet.
“What the hell are you doing there Erika? Get out of my bedroom”
But then Erika faced her, looking at her older sister right in the eyes with a face better matching a 15 year old’s, while finishing to adjust one of her bras. Her body was like an exact copy of her older sister. A tall and lean hourglass figure, large breasts and a good ass.
“Sorry sis” Erika said, “My bras became too small for me, and yours just fit perfectly.”
“Get out!”
“Try me”
Maria dragged Erika out of her room, but the young girl saw that she struggled to do so while she didn’t put back much of a fight, and it made her smile.
After all those years of teasing done to her, she was now as big as her older sister, all thanks to that strange liquid that was spilled on her 4 months back. She grew at insane speeds to the dimensions of her sibling, and now, they were even.