BDSM

"Okay,Dr. Twilliger. You're gonna be my BDSM ****. You exist only to be tied up. This excites you greatly. Every day,you will request that your binds be tighter,and only if you escape them will you get fucked by me. You love the feeling of ball gags in your mouth,and vibrators in your ass and pussy,and being tied to a chair. Do you understand?"

"Yes,Master."

The next teacher was Dr. Greene. She was a willowy blonde about the same age as Dr. Burgess. She had long legs and a bubble butt.

"Let's see,Dr. Greene..."