This is a much larger story broken into chapters. Please read in order, as it may not make sense if you don't. I'd be glad for any feedback you may have.
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Her birthday was a couple days later, on Saturday, so we had the day free. We woke up in the late morning. We showered together, but without having sex, which we usually did if we were in the shower together. In fact she wouldn't even let me touch myself. She washed me. When we were done she told me to sit on the bed for a minute while she got everything ready. "Now, we are going to do this." Sandra was talking in a comforting voice, trying to put me at ease. "I'm going to be in charge, and you will do as I say. That's how a good maid should act. I might do things we haven't done before. If you really want to stop then say so and I will, but you know that I would never do anything to hurt you, or that I thought you wouldn't end up enjoying. So please try to go with it, even if it shocks you."
"I will."
Sandra went to the closet and got out my outfit, with the stockings and shoes. She put the stockings on me; they were thigh highs. Then handed me a light blue thong, saying it was the most girly one I had. I think I heard her mumble something about getting me others. I stood up and put it on, liking the feel of my hands sliding along the sheer material covering my legs. I turned around for her to see, and she slapped my butt playfully. Next came the costume. I stepped into it and pulled it up, slipping my arms into the little sleeves. Sandra had me turn around again so she could zip it up. There was a little white lace collar that she put around my throat. Her fingers trailed the lace edges of the top, along my chest. Then she knelt down. I hadn't noticed the little garter straps that are part of the costume, but she was connecting them to my stockings. She ran her hands over my legs.
"Sit," she commanded, and I sat back down. She lifted my feet, one at a time, and put my shoes on. She was smiling widely, clearly enjoying this. I have to admit that I was too.
"Now come in here," Sandra said, wiggling her bare butt at me as she turned and walked into the bathroom. I followed her. She said, "Sit there," pointing at the little stool that we have in there. She picked up her reddest lipstick off the counter.
"What are you doing," I asked. Make-up wasn't something I had thought about.
She looked at me. "You need some lipstick, and eye shadow, maybe a little mascara. You are already in a tiny little skirt, how is this any worse."