Warm her up.

I decided it was time to really make Cassie suffer. Grabbing her straitjacket by the shoulders I dragged her kicking and mmmphing into the next room. My little dungeon is quite extensive- it's amazing what you can have built if you've got cash to burn. The room I put her in has a tiny little sauna box in the corner- just big enough for one person to sit in. There's ankle shackles at the bottom of the

sitting bench so that my guests don't leave. There's a swinging door at the front with a semicircular gap in the top, and another matching gap on the top of the base so that when the door's closed there's a hole for the occupant's head to stick through.

I dragged her over to the sauna and, with some straining, sat her down on the bench. She tried to kick me, but I expertly got my body between her thighs so that she was just kicking air. Cassie wiggled in her straitjacket and rolled her head, making muffled sounds of protest as I secured her left ankle, then her right.

Leaving her writhing from side to side, I took my bag of toys and took out three items: a pair of latex gloves, a pink vibrator and a tube of deep heat cream. I put the gloves on and squirted some of the cream onto them, then some on the vibrator. Then I walked back to my prize. I rubbed my hands on her mound, her beautiful hard belly and then some on her ass, making sure to give her anus a good dose.

Then I set the vibrator on high and shoved it into her pussy, securing it there with thin leather straps. Cassie twitched and struggled as I put it in, but that was nothing compared to her reaction as the cream started to work. "MMMMMHHHHHH!!!" she said, and wiggled her hips furiously from side to side.

"NNMMGHH!"

I walked to the side of the sauna. Cassie was hunched over, whimpering. I grabbed her head, pulled it back so that her neck rested in the back half of the sauna's head opening. Then I closed the door and padlocked it shut. I switched the machine on and before long it was filling with steamy air. I rolled out my favorite chair, a regular swivelling office chair and sat down to watch. The door has a glass front so that I can see everything.

Through the misty air I could see beads of sweat and condensation forming on her exposed skin. She sat still for the most part, breathing heavily, but every now and then she'd twitch and buck. I could hear little sobby moans from inside the hood, and after a while her breathing quickened. Smiling, I walked over to her and put my mouth near her ear and said distinctly,

"I know you're suffering, and I like it. I also know the vibrator's about to make you come right in front of me. I'm enjoying that, too. That's what your life will be from now on, a series of pleasures and torments. And eventually you'll come to realize your only pleasure is to make me happy, and your only **** is disappointing me. You'll become my ****, and your purpose in life is to serve your mistress."