MMI no the sub/slave is not in control. Before the relationship is begun you first negotiate hard limits and conditions. I have a set of questions I have worked on and am still working on to be sure they cover needed subject and issues.

If her set of hard limits are acceptable to me I accept her service if not I refuse. After that her body is my to do with as I wish provided I do not violate any hard limits. I will push them, test her from time to time.

Last thought on this for now is that if a Dom/Master is too selfish he will probably lose his sub/slave.

Russell