It was later edited to secure a more appealing “R” rating.
In my personal opinion screenwriter Joe Eszterhas is a tremendous talent with a knack for writing edgy material. If he would have wrote a script about a Las Vegas stripper that did not contain nude scenes it would have been watered-down. The story wouldn’t resonate with any realism. It’s ultimately up to you to decide what content you will show in your movie. Not every viewer will agree with you choosing to depict nudity, sex, and graphic content.
A majority of smaller budget independent films are not submitted to the MPAA to receive a rating. They are labeled as “NR”, which isn’t an official MPAA classification or as “Unrated.” Both my previous films Consignment and In With Thieves are listed as “Unrated” and include nudity, sex, and graphic content.