Your step-sister has a costume party to go to ans she wants to be Giganta. She wants the costume to be as accurate as possible and she looks to you, her nerdy step-brother, to make her a growth potion. After the first batch you make her, her tits are huge! She knows you did it on purpose, and she's not happy. She demands you fix it. Finally the serum works and she's 8 feet tall! She's in her costume ans heads out to the party. When she returns, she's not wearing her skirt and she is way taller than before! Now, she's 15 feet tall and ag the party she grew right out of her skirt! She becomes ob...

Your step-sister has a costume party to go to ans she wants to be Giganta. She wants the costume to be as accurate as possible and she looks to you, her nerdy step-brother, to make her a growth potion. After the first batch you make her, her tits are huge! She knows you did it on purpose, and she's not happy. She demands you fix it. Finally the serum works and she's 8 feet tall! She's in her costume ans heads out to the party. When she returns, she's not wearing her skirt and she is way taller than before! Now, she's 15 feet tall and ag the party she grew right out of her skirt! She becomes obsessed with growing and she keeps pushing the limits more and more until she doesn't need you anymore. How big will she get? This video is full of low angle, upskirt views!