As I shoved my shaft deeper and deeper inside of her she stood on her toes to be more comfortable, her feet were so sexy the way they were perfectly a...ched and the way her perfectly formed calfs were flexed just the right amount. I could feel an ocean of warm semen building up inside of me and with every one of her high pitched quiet moans the intensity got stronger and stronger. My cock was pulsing now and by this time she was screaming that she wanted my cum down her throat and all over her. "Hey pop it back on let's see what you got" He said with a grin. That surprised me again, but I went to my computer to turn on one of the straight porn clips I had. It was a video of a tiny girl sucking a guy off. He gave me a wry, knowing look, like he knew this wasn't what I was watching, but he didn't say anything. "This is good stuff, man I wish I had stuff like this when I was your age" he said.We watched a little bit and talked about it, made fun of it, laughed, and I began to feel. “You realize that from now on I own you slut, you are mine to use as I wish? And you will address me as Master from now on?” I said.“Yes master, thank you master” she replied. We went into the lounge, there was a long dining table, some chairs and a sofa.“The table will do nicely until the dungeon is constructed” I said, “Lie down on your back bitch” I ordered her.I put a cushion under the small of her back to push her bald cunt in the air then tied her wrists and ankles to the four table legs. She had to teach tomorrow, no problem, she was smart, just wear lose sweatpants and a big t-shirt and nobody will really be able to tell, she told her self. But when she got to the gym, she forgot they make sure the teachers are "qualified" (read: fit enough) to do a class and striping to her uniform under the sweats and getting on the scale would prove a death sentence. "I've got to think of something!" she thought. At last as the trainer was looking at her, as if waiting for her to explain.