"Ryuko, help, I'm down here" satsuki screamed, jumping up and down to make her sister aware of her, but this proved to be a mistake as soon after she said that ryuko said " ugh, fucking bugs" while rising her feet to crush her, satsuki watched in awe as the giant sneakers her sister was wearing rose but then began to run while screaming for her sister to stop, when the foot came down satsuki barely managed to avoid it, but never stopped asking for her sister to stop and help her "ryuko stop, damn it, its me satsuki". This time however, some of her words manage to make it to ryuko, what she thought before were weird squeaking sounded more human this time aroud, bending a bit to see the 'bug' at her feet, ryuko manged to recognize her sister inmediatly after.
"S-satsuki?" Ryuko asked confused "How did you get so..... Small?" She asked her older sibling trying to make sense of any of this. "I don't know myself. I was drinking some tea that soroi made for me and next thing i knew, my clothe were too big and getting bigger." Satsuki explained, to her surprise, ryuko seemed to be.... Smiling? How can she smile at a time like this? "This is kinda..... Funny" ryuko said as she couldn't hold her laughter any longer, she bursted laughing at her sister predicament. It wasn't as if she made this or anything but it was just so ironic, satsuki was a tall and powerful person that always talks high and mighty but here she is, shrunken to a mouse size and begging for her little sister not to step on her like a pest.
"How can you laugh at a time like this?" Satsuki scolded ryuko "s-sorry, its just that its pretty funny to see you cut down to size" ryuko said while giggling "you have to stop this dumb mocking and help me" satsuki ordered her sister, but for ryuko it was kinda cute to see this small girl at her feet try and order her around, "and what if i say no? What are you gonna do? Bite my ancles?" Ryuko mocked her older sister putting a smug grin on her face, "thats not funny ryuko" said satsuki trying to make ryuko stop her teasing "sorry sis, from now on im the big sister, so i decide what is funny and believe me, this is pretty funny." Ryuko said while she stood straight.
It took satsuki sometime to get this but as she stared at her sister's towering height she understood the difference now. Ryuko's legs looking that pillars that converged in an panty shot, her cool shit and jacket combo covering most of her body but also showing a but of cleavage so to maintain some sex appeal (it was mako's idea) and her face with a shit eating grin, difficult to see thanks to her impressive boobs on the way.
"But don't worry, i am not heartless, you are my sister, i'll help you get back to normal. But first....."
What wilk ryuko do first?
Option #1
"I need to take a bath and you are coming with me" ryuko was training and doing some exercises, soaked in sweat and with a mild odor, she decides to take a bath, but given her sister's size she is afraid to leave her alone and takes satsuki with her
Option #2
"I need to take some pics of this" ryuko promised mako to try and take pics of satsuki for the bicurious girl, after sending mako some pics, she mades her way to the masion to dress up satsuki in lewd costumes and keep taking pictures of the small kiryuin.