My experience was a little different in that my Mistress came spontaneously. It was towards the end of a session and I was lying on the floor with nipple clamps attached to both nipples. My Mistress was standing above me and suddenly got the urge to grind her foot onto one nipple and then the other. I have a very loud void voice and I let out a wail to shake the rafters.

She was so pleased that she went and got her camera to take a short video of a repeat performance. Unfortunately, she was a bit disappointed and commented that my screams weren't quite as loud. However, she did reward me for my suffering. She knelt above me with her stained panties a nose length beyond my face, after saying "I think you will enjoy this". I went home grateful for what my suffering had produced. It was only afterwards, that I realized that I should have promised all my worldly possessions for her panties. I could have savored my pheromone fever for a little while more.