I am pretty well-read in the 20th century American classics: Steinbeck, Hemingway, Fitzgerald. I have not read much current commercial fiction and I really don't want to, so I have a fresh voice. I am creating a novel (definitely not erotic) with a heterosexual male maturation plot, from different angles and a unique parallel development of the two main characters. My question(s) for you guys: In a current commercial fiction novel, how graphic, descriptive, explicit can/should sex scenes be? (that are totally related to plot development) Putting aside the emotional, how can/should I approach the anatomical, physical, biological features of such scenes? I heard somewhere that the sex scenes in some of Jim Webb's suspense borders on the pornographic, which is certainly not how I'd like my work to be referred as.