The interruption, obstacle or vanishing partner in your dream may be a symbolic representation of the element in waking life that impacts your intimate life. These dream stories can be immensely valuable help in recognizing and overcoming inhibitions to fulfillment and intimacy. People recovering from illness, depression, surgery or the grieving process may suddenly and inexplicably begin having highly erotic dreams. These appear to be associated with an increase in physical vitality and a greater sense of aliveness, although they may precede physical recovery in some cases. These dreams often strike the dreamer as very funny, given the depth of challenges they have been facing, but they may serve as a rather earthy reminder that although you have been through hell, you are still very very much alive.
Some sexual dreams involve a sort of casting call of past lovers.
Everyone you have ever been with may show up at the same party, or in the same bed. The plot of these dreams varies, but they focus on past relationships, either a survey of many relationships, or that one old flame who haunts your dreams with regularity. Their function seems to be to help sort out threads from past involvements which continue to impact current relationships and levels of intimacy. You may recognize a familiar theme in some of these often-reported sexual dreams. You and your dream are unique, so think of these ideas as starting points, not conclusions.