Your whole life, you've been the big brother. Taller, older, stronger. All of that started to change when your sister began sneaking experimental growth pills from a lab called GrowTech. Things begin to change in her, not just physically but mentally too. And what happens when she begins introducing you to some GrowTech pills too?
Rated: X
Categories: Giantess, Teenager (13-19), Humiliation, Young Adult 20-29, Mature (40-49), Breast Enlargement, Growing/Shrinking Out of Clothes, Incest, Maternal, Slow Size Change Characters: None
Growth: Amazon (7 ft. to 15 ft.)
Shrink: Dwarf (3 ft. to 5 ft.)
Size Roles: F/m
Warnings: Following story may contain inappropriate material for certain audiences
Challenges: None
Series: None
Chapters: 14 Completed: No
Word count: 13373 Read: 79698
Published: June 14 2023 Updated: September 07 2023