There really is no such thing as a "normal' massage parlor. There are dozens of massage modalities which can be offered by a massage establishment, and spas add a number of non-massage wellness treatments to their menu. It also very much depends on where in the world you live. For example I live in Thailand, and obviously a "normal" massage shop is offering Thai Massage. In the Us the emphasis is more on Swedish-style massage. What you are talking about is generally not part of any professional massage establishment. It is more of a partner activity.