Its hardly S&M but my first experience was a psychological fuck fest that involved an older gent when I was in my sub phase (which didn't last too long).
Basically after mouthing off about my complete ability to sub to anyone and just about any request I found myself chained to some piping in my masters kitchen, He held me down, and handcuffed me to the wall and walked away. I heared the car leave and thought what had I talked myself into. Within an hour he returned but walked straight passed me and didnt say a world.
Within an hour it was dark and I could hear him in the otther room watching television, I called out for something to drink at one stage but heard nothing.
After what seemed like another hour, my master appeared in the doorway stroking himself, wearing nothing but a cock ring. He walked over to me and without speaking he pushed me onto the ground and literally tore my top off, undid my jeans and pulled them off along with my knickers.
He shoved his cock into my mouth and told me to eat it all, which I proceeded to do with great gusto. The sudden force of his actions scared and thrilled me beyond belief. As I sucked his veiny member he fingered my pussy which was dripping with juicy anticipation! He had a handful of my hair and was face fucking me hard, I started to choke a couple of times and he gave me just enough tiem to catch my breath before putting himself in my mouth again.
He pushed me down on the ground, flat on my stomach and came down on top of me... he slid inside me so easliy and the feeling almost caused me to faint with joy... He pumped me hard, pushing my body into the cold lino floor. He keep pulling my face around to kiss me and we would synchronise in this amazing fucking harmony looking into each other's eyes... master and slave.
Just as quickly as he took me he pulled out and shot his warmth all over my arse and back... he then wlked to the bench, and threw some keys to me and walked out... ten minutes later I joined him in the lounge room t watch some television, we never spoke about it and it made it 100 times hotter!