Not trying for a NSFW type post...I am interested in finding a few books and/or authors that have an erotic or more adult oriented style. Not looking for trash-type books, but actual High quality erotica or more literature style books that have this element infused into the overall plot and characterization.

Most books have the romantic aspect of relationships, and those are great and are very enjoyable, but most of not all that I have read stop at the bedroom door and don’t really touch on any aspect of the physical and mental parts of sexuality.

Anyone know of examples out there that are a little more real-world realistic in its tone/style? These could be old classics or new novels, book of short stories, more vanilla in sexuality or more kinked and pushing sexual boundaries.