Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_40539 ( "Date" text, "Cover model" text, "Centerfold model" text, "Interview subject" text, "20 Questions" text )

### Question ###
Which Cover model has a Centerfold model of scarlett keegan?

### Accurate SQL ###

SELECT "Cover model" FROM table_40539 WHERE "Centerfold model" = 'scarlett keegan'