So what is your Fantasy and has it really happened.  One of my first mistresses gave me a choice, allow her to spank me or she would show a portion of a sex tape we made to my colleagues.  The portion of the tape was me jacking off for her before we had actual sex.  Anyhow I agreed thinking it was part of a game.  Later she pulled the same trick as what I thought was a prelude to a threesome.  Her roommate taped the spanking which featured me begging for it and her working her finger and the handle of the brush into my ass.  After that she had a good blackmail tape which she used to make me her bitch.  After a while I looked forward to the times when she would tape me performing some sort of degrading act knowing it would bind me closer.  

What about you?