London, September 15 : Playboy mogul Hugh Hefner has said that he postponed his divorce from his estranged second wife for the sake of their children.

The 83-year-old filed for divorce earlier this month, after an 11-year separation from former Playmate of the Year Kimberly Conrad Hefner.

Hefner, presently dating Playmates Crystal Harris, 23, and twins Karissa and Kristina Shannon, 19, said that he waited "because of the children" - his youngest son Cooper turned 18 on September 4.

"Now is the time. I stayed married not because it was a marriage - the marriage ended in 1998. I stayed because she wanted me to," the Daily Express quoted him as saying.

The two got married in 1989, and separated nine years later.

They, however, remained legally wed.

Conrad, 47, is the mother of two of Hefner''s four kids, and had for years been supported by him in a home next to the Playboy mansion. (ANI)