Most people have sex in a very ordinary model, kind of like in the porn movies. Most people are afraid to really regard, look at or change their practices at all. It's nice, though, just to light candles first and invoke the Goddess. Or gods and goddesses. Dedicate your sexual encounter to a purpose.
More structure can be nice occasionally.
Sensate focus is good, and massage. I don't know either, although I think about it. Perhaps the taboo around prostitution is one of the pivotal taboos that structure our civilization - perhaps, as I suggested earlier, because it's another way to make sure there is a mandatory system for patrilineage. Without mandatory marriage including all other options being cut off, especially the most obvious ones, we would have no patriarchy. Once we are fighting for the crumbs of self-determination in this patriarchy, then the nonwhores are pitted against the whores, who seem like competition.