Rabastan chuckled, because this was truly amusing. "Oh pet, you really don't understand how things are done, do you? Don't you worry your pretty head about that; you'll know soon enough."
He took out his wand and banished her robe. It would have been more dramatic to rip it off of her, but there was no reason to destroy property. That was Walden's domain.
He took a look at her and tsked. "See, this is the problem with girls today. They have all of these things that they wear, things that give them too much freedom and breath." He called Prissy and gave her instructions. The house elf returned with a wale bone corset. Rabastan ripped the flimsy bra she was wearing, not even touching her, or just causual brushes as he put the corset on her, and tightened it by magic. He then banished her knickers and underwear and transfigured her heels, turning them into six inches heels, not caring if suddenly her balance would be all wrong.
"See, Walden, this is who she should be in the house." He caressed the corset. "This should be tight enough to take her breath away if she tries anything, the hem right under her breasts, keeping them exposed for you to touch as you please." He pinched her nipple before stepping back. "The heels keep her arse arched, ready for you and her legs should always be parted, so you can touch her cunt as you wished. She doesn't need any clothes unless you have company that requires clothing."