Erotic Inferno, also known as Adam and Nicole, Adam & Nicole, and Naked and Willing, is a 1975 British sex film directed by Trevor Wrenn, and starring Chris Chittell, Karl Lanchbury, Jennifer Westbrook, Heather Deeley and Mary Millington.

Erotic Inferno is notable for being one of the few British sex films to have been viewed by moral reformer Lord Longford, who saw the film and two others in 1975 in order to gain first hand experience of sex films. Longford saw the film on a double bill with Hot Acts of Love (1975, dir. Jean-Marie Pallardy) at the Astral Cinema complex in Soho; he later went to see How to Seduce A Virgin (1974, dir. Jess Franco), but walked out. These three films were all later reviewed in Cinema X magazine under the banner "Lord Longford – We rate his selection".