I am in a D /s relationship with my partner Amanda (better change that to Miss Amanda, as she has promised to check up on what I'm writing here ). We have only known each other 4 years. The last 2.5 years of which have have gotten a bit kinky. It started off with orgasm denial for me. Sometimes when we were masturbating together, she would come first ( because I was trying desperately to hold off, so I could watch her ) when this happened, she would reach over and grab my wrist, or pull on my balls, to physically stop me from climaxing. It started as a bit of a laugh - almost a practical joke - but after it had happened a few times, I really started to enjoy it. Another thing she did, which I found a bit unusual, was when I was giving her oral and she had an O, she would roll over in bed and almost instantly go to sleep. The first few times this happened, I was left speechless. That had never happened to me with any other woman. Generally, they were so happy to get an extended session of oral, that they would do anything to get me off in return. I was intrigued. Many long conversations ensued. She confessed that she had always been very selfish about orgasms, and had actually lost a number of boyfriends because of it. I loved hearing her talking about past relationships....it was like a drug to me. I pointed out that she behaved very like a guy - she laughed and said "Yeah, I've often been told that ". More about that another time.