I'm working on a novel and in this novel the 18 year old son sleeps around with his Mother's friends/best friends what have you, would this be considered an oedipal complex type thing because he knows it's taboo to want his mother so the next best thing is to have relations with women that she's close to? And also wondering if there is a site or a book that offers more information about this sort of thing.

What you are looking for is Sigmund Freud who is sometime regarded as the architect of modern psychology. I think Freud borrowed the term from a play by Sophocles called 'Oedipus Rex'.

Psychoanalytic theories, Oedipus Complex being one, are highly subjective interpretations of behavior. Therefore the interpretation you offer is as valid as that of the most learned psychoanalyst. By going to Google Scholar and entering "Oedipus Complex, Psychoanalysis" you should find endless reading.