Helena's growing adventures EP 1

A teenage girl Helena and/or someone she knows grows

Helena is a 13 year old girl who lives in an apartment with both parents and an older sister. She goes to middle school in the city of Leskovac. Despite being only 13 Helena vapes in the school bathroom between classes and is secretly addicted to pornography. She is quite popular in school and has a lot of friends.
A couple days after the school year started Helena and her sister were called for a family meeting. Radovan, Helena's father, made an announcement: "Kids, Your mother and I are going on a trip tomorrow to see Dino Merlin preform in Montenegro and we might stay there after for a couple weeks, so Sofia (Helena's older sister) you will take care of Helena and yourself, got it?"
"Got it" Sofia said paying more attention to her phone that the conversation.
As the parents were packing, Helena was scrolling through the depths of the internet to find a new vape and on the 5th Google page she found something that caught her eye. A new "Growth Drive" vape was in testing phase and needed people to try it out. Helena wanted that vape for free so she took her father's documents and filled the application, picked a flavour (strawberry, her favourite)and said "Deliver it to my house tomorrow evening at 6pm and give it to my daughter, she's 13 she doesn't know what it is " and sent it. Then later at dinner Helena leave's early claiming she's not hungry and goes to Sofia's room. Sofia only realised Helena was in her room after she finished dinner and saw Helena in the bed of Sofia's room. Sofia said with monotony but aggressively "Get out of my room" and Helena left without saying a word. Later at 9 pm their mother wished them good night and they went to bed Helena set an alarm for 5 am and masturbated before going to bed. The reason she set an alarm for 5 AM is that Sofia would be fast asleep by then because she usually is on her phone up until 3 am. The alarm rings as Helena goes to the balcony of her room. The balconies of her and Sofia's room are split by a small gap but being the smart teenager she is she tied two ends of her jumprope to the mental fences of the two balconies when she left dinner early. She then simply just crossed to her sisters balcony by balancing on the jumprope. She then sneeks into Sofia's room and takes one of her vapes with 10% nicotine and she gets high from taking too many hits from that vape. She then unlocked her sisters phone and changed her alarm from 6 am to 8 am. Helena then went back to her room and threw all her school stuff on the balcony to decive her older sister that she already left for school. Then as a final touch she slept in her closet so when her sister enters the room to check on her she'd have no idea where Helena is an assume she went to school. As expected her plan worked. Helena wakes up at 11 am and tries not to make any noise so that Sofia doesn't hear her. She patiently waits for Sofia to leave for school at 1 pm since she goes to high school form 2pm to 8pm. The very same second Sofia leaves the apartment Helena gets up picks up her phone and masturbated to porn for half an hour. Then she calls her sister
H:"Hey Sofia"
S:"What is it I don't have time I'm in school"
H:"Ok ili make it quick, are you going to the club right after school or will you be coming home right away "
S:"I will come home get ready and then go to the club why"
H:"Cause I'm going for a walk with my friends at 8 pm and I want to know if I should keep the house unlocked "
S:"Keep it unlocked and take a spare key with you"
H:"Okey bye"
S:"Bye"
Helena wasn't actually going on a walk but just wanted to make sure she'd be alone for as much time as possible. Later at 6 pm the package came. A spike of excitement rushed through Helena as she heard the doorbell. She opened the door smiling "Hi oh that package is for my dad he's not here now but I'll give it to him later" she lied through her cute little face and went to her room and opened it.
"Dahm it's huge,I might just use it as both a vape and a dildo" she said as she looked at the vape. The vape looked like the part of the lightsaber you hold with your hands. It was thick and black with green text "Growth Drive" on it. Without much more hesitation Helena took a small hit of the vape to test the flavour. When she puffed out the smoke the smoke was green, something she'd never seen before but unbeknownst to Helena she also grew. She did feel a tingling sensation but she didn't notice her growth from 154cm to 156cm. "Oh this makes me feel funny and high at the same time, I like it" Helena said as she went to do some tricks in the mirror.
"Okay let's see how long I can hold the smoke in" she said as she took a huge hit and inhaled. Her inhaling the smoke and holding it in made the growth way more noticeable. Helena watched in the mirror in awe as she saw herself growing more and more. Her Jeans already felt tight her shirt now looked more like a crop top and her her socks were kinda snug. She had grown from 156cm to 180cm. "OMG I'M HUGE" Helena screamed at the mirror "This is the best thing I ever bought " she said. She was now taller than Sofia who was 179cm. "What shall big me do" wondered Helena as she saw Sofia's room and said "well I guess some new clothes will do" she said as she went full on in her sister's clothes taking a golden crop top and some thing black pants. She didn't stop at her sister's clothes she also took her makeup; applying gold lipstick and eyeliner on herself. "Looks like I'm going out after all" she said as she took her sister's golden purse and headed through the door.