My husband and I do this on most cruises. The only difference in a couples vs. a single massage, is you share the same massage room, the massage beds are about 2 feet apart and you each have your own masseus. They (the masseuses) try to do everything in unison.
I was reading about a couples one on the caribbean princess and they mentioned something about an exotic bath being included in the package i saw. Does anyone know what this intales?