* HS bully Bob dominates Mom and Sis, turns them into sluts, yada yada.
* Bob is dominated and enslaved by Mom and Sis, dressed as a French maid.
* Bob, Mom, and Sis take turns as doms and subs, maybe manipulated by Dad.
Visualize the final image. Who wears the collar(s) and who holds the whip(s)?
Well... real life, my wife and I are in an open relationship, she has her masters and has teacher at a local community collage... it was like her treasure chest. Many of boys and girls wound up under her spell. I could tell you more if you like...