I learned very quickly that a true submissive is a rare and special gift that learns how to please her master by blending her love for him with her craving for domination. My wife/slave taught me that she was both eager to please me by her submission and yet at times moved out of line to get the discipline and pain she craved.
Her begging and whimpering for mercy was such a turn on and she never hesitated to please me. A subs motives might be cleverly hidden but they are quite real.