Last month, Hugh Hefner announced that his wife of 11 years, former Playmate Kimberley Conrad, finally filed for divorce and a $5 million lawsuit against him for breach of their pre-nup, which Hef claims is totally false.

In the divorce papers filed in L.A. County Superior Court on Friday (September 4), Hugh claims “irreconcilable differences” and asks to pay only $20,000 per month on spousal support because he reportedly has already given Kimberly close to $12 million since their separation.

Hef told TMZ that early in their relationship Kim cheated on him with another man, whom he knows but won’t reveal the identity of.

Hef stands by his claim that he was faith to Kim during the time they were married and Kim lived in the mansion. (Kim and their sons have been living in the house next door to the Playboy mansion).

Kim and Hugh got married on July 1, 1989 and have been separated since January 12, 1998. Why were the couple together for so long? Hugh said that he was more than willing to divorce Kim but that she wanted to stay married for the sake of their two sons.