I have thought of this a lot.
There is this part of me that wants to be completely controlled by his whims. To be commanded to crawl across a room, to be bent over, whipped, ordered not to make a sound, and don’t move. Sometimes for me it isn’t even about orgasms, its sexual, yes, but there is just that desire for him to let go and bring that evil side of himself out. I imagine his being only interested in satisfying his sadistic desire to use me, hurt me, and humiliate me.
He on the other hand wants me to beg to be beaten or fucked. He wants the pain slut. He gets very turned on when I am that wild slut, begging for more. He relaxes and doesn’t worry as much about where my head is, because he hears it in my moans and plea’s. I found that his desire is increased by my getting more turned on. I get many harder and longer whippings when I beg and moan.
When I am being quiet or “passive” he watches me much closer to make sure I am in the right space. So he lets his Dom/ Sadistic side out to play when he knows I am an active participant, but is more reserved when he isn’t sure where my head is.
The partner wielding the whip has to break many more of society's barriers to enjoy his kink than the partner getting the licks does. The subs verbalizing their desire, being a more active participant gives the Dom the feedback that allows them to continue on.
This is just how our relationship works, I am sure there are many out there that do things differently. I am just using our lives as an example. Some people don’t allow limits, or safewords. But IMO there needs to be a caring and concern for the other person's well-being and needs.