Playboy chief executive officer, Hugh Hefner, has ended his marriage to former Playmate Kimberley Conrad and will pay monthly spousal support of $20,000, TMZ reports.

The couple married in July 1989 and separated in January 1998 citing irreconcilable differences.

The former Playmate has lived in the house next door to the Playboy mansion but has since had to move following the sale of the house.

According to the report, Conrad has received from Hefner close to $12 million since the couple's 1998 separation.