A simple story of a sister and her friends crushing her little brother would be the best description. It's mainly about trampling, squashing, a little foot worship, but I guess you would classify it as general BDSM.

WATTPAD BOOKS EDITION You do magic once, and it sticks to you like glitter glue... When Johnny and his best friend, Alison, pass their summer holidays dabbling in magic, they never expect it to have consequences. Sure, it'd be great if they could banish bullies or change their lives for the better, and what harm could come from lighting a few candles and chanting a few spells? They get their answer in the form of an earthquake unleashed at their behest, which draws the attention of the Marduk Institute, an age-old organization dedicated to fostering the talents of young wizards. Whisked away to the institute and told they can never return to their old lives, Johnny and Alison must quickly adapt to a new world shimmering with monsters, fraternities, and cute boys like Hunter and Blake. But when they're pulled into a dark, supernatural fight that could cost them their lives, they'll have to find strength they never knew they had as they battle for love, acceptance, and their own happy endings -- all with the help of a little bit of magic.

A story about how I become my teachers footslave. Living everyday under her desk and worshipping her feet. I am forced to smell her feet, lick her shoes, tongue bathe her feet, and serve as her footstool.