Explain your plans for her

You go and fetch the rest of her restraints. A tight leather straightjacket, a padded posture collar, and a custom ordered gag. When you dump them on the floor Ventress finally speaks. "What are you going to do to me Sir?"

You decide to show her shat happens when you speak without permission. You slam your hands over her mouth and nose. Ventress grabs your arms and try to pull you away but you place a knee on her solar plexus and lean in. "Stop resisting your punishment V." She strains, but doesn´t seriously try to stop you.

You let go and grab the jacket while she recovers. She stays silent while you feed her arms into their sleeves and start buckling the straps behind her back, though she winces when you buckle the crotch strap. You then grab the custom made gag. On the outside it looks like a face mask like a painter would wear, but there´s a catch on the inside. The inside has rubber slots for the teeth and a squishy ball in the middle. Ventress mouth is almost completely filled up by this gag while to observers it will look like she´s wearing a mask like Kitana in mortal kombat.
"See Ventress, I know you think you´ve made a good impression on me by being obedient. But I need more then that. I´m gonna need your mind to die." This causes

Ventress to start struggling, trying to stand up. However, you straddle her legs and easily grab her by the straps on the straightjacket. "There it is, that defiance. That will. That cruelty." Ventress turns still when you hint at her past. You wrap the posture collar around her neck. "By the time I´m done with you, you will no longer be Ventress. You will be Servant. Nothing more."

You pull her up to her feet and lead her over to the kitchen. "On your knees, bend over." Ventress gets down, as ordered. You sit down on her back and open up your phone. Not because you have anything to do, but because you want to nail home what she is supposed to be to you.