first actual experience was taking her wrists in one hand a breast in the other squeezing both hard enough to let her realize that I was in charge. Her response was dramatic in that she climaxed right then and told me she had never felt like that before.
Shortly after that it was silk ties spread eagling her to the bed and my putting on her a blindfold that she told me she would never do. This also showed her that she had no voice iin my choices once she was bound.
Again climaxs and afterwards a talk about how I would never do what I promised not to do but that she could not set limits alone.
Today I would never say that or do that.