During one Spa visit, Rarity cancels last minute, leaving Fluttershy alone, however, a worker at the spa approaches Fluttershy to try out a new treatment.
However, that'll be one of the worst choices of her life.

Proofread & (Partly) edited by a friend who wishes to remain anonymous.
Warning contains: Breast expansion, Butt expansion, Hypnosis, Latex, Bimbofication, all on poor Fluttershy. you have been warned.
Constructive criticism is welcome.
Original idea by Jicho.