An interesting topic. I will start by making the trite observation that in my experience it varies a great deal from mistress to mistress. I will now relate 3 stories:

1] In another thread I mentioned that my first mistress was named Heather (it was so long ago I do not feel guilty about using her mistress name in this thread) In several sessions Heather would order me to stroke my cock but forbade me to cum. Heather seldom said anything complimentary but she did compliment me on my control. Except one session there was an accident (real accident, it was not intentional). She was very angry and proceeded beat me a lot with a paddle and my belt (she did not have a cane) At the end of the session she said that my punishment was not over and ordered me to see her again one of the next two days she worked. I wanted to comply with those orders but my schedule would not permit it. At first I was a bit afraid but then my fear turned into anger at Heather being unfair. So I stopped seeing her. EVER

2] Later there was a domme I did several sessions with. I found her very easy to talk to. After one session I asked her if there was something she wanted to do but had never done. At first she gave me the "oh, I've done it all many many times" spiel. But I continued to press the topic so she said, "There is something but you wouldn't do it". What it was would be to order me to masturbate to orgasm, then tie me up thoroughly and administer a combination of paddle and cane without a safe word. I agreed to do it but with the small modification that the orgasm happen in the middle of the session after some warm up. I also made it a condition that at the end of the session she tell me how wet shot. I also made it clear that this would be only a one time thing.

So we did it. Afterwards she said she got very wet, thanked me and gave me a small kiss on the cheek which she had never done before.

3] There was another mistress who thought the proper way for a session to end was with the sub pleasing himself. One session I was having trouble finishing. So I politely asked her to pinch my nipples which she was all too eager to do. It had the desired effect. That became our standard procedure in future sessions. There was a delightful twinkle in her eyes as she was pinching