I dream that I. calls a service to order a prostitute. When the prostitute arrives, I. tells her to sit in a chair and open her legs. A. leans over and began rummaging around her genitals, referring to them as an "envelope."
When I glance out the window, I see a middle-aged, balding voyeur with a pot belly look away quickly. He scribbles the words, "French Underwear" on a paper napkin, tips his head back and drapes the napkin across his face.
Later in the dream it becomes clear that the prostitute, whose eyes bulge slightly like Peter Lorre's, may in fact not be a woman, but a transvestite.
But if that is the case, A.'s use of the "envelope" metaphor would no longer make sense.