Yes, it is standard practice and considered a professional etiquette for massage therapists to cover their client's underwear with towels during a massage. This is done to ensure the client's comfort and maintain appropriate boundaries during the session. By draping the client with towels, the therapist helps create a sense of privacy and modesty.
During a massage, only the area being worked on is typically uncovered. The rest of the body is covered by towels or sheets. The therapist will expose one area at a time (for example, the back, leg, or arm) and then re-cover that area before moving on to another part of the body. This approach ensures that the client feels secure and respected throughout the entire session.
If you ever feel uncomfortable during a massage, whether it's related to draping, pressure, or anything else, don't hesitate to communicate your concerns with the therapist. A professional massage therapist will always prioritize your comfort and make appropriate adjustments to ensure you have a positive and relaxing experience.