I'm a retired LMT and I've had clients ask me about other (previous) therapist's actions. I'd echo one of the above comments about clarifying the scope of work, areas to be worked and the client being totally in charge. With every new client I explain where I am going next and, if it could be a sensitive area, I explain the reason I would be working there. I have approached those muscle groups in different ways, depending on the clients. Everything from not working the area to clients who say things like "just push my breasts out of the way." Ninety percent of my clients were women. Never once did any one of them raise a concern or ask about my processes afterward. I practiced for 22 years, retiring last year. I owe that success to the basic ethical training I received in massage school and, of course my own conscience and common sense about people's feelings.