Conrad's marriage to Playboy founder Hugh Hefner in July 1989 drew worldwide media attention. The comic strip Doonesbury referred to the event as the belated end of the 1970s. The Hefners had two sons together: Marston Glenn Hefner (who shares his birthday with his father: April 9, 1990) and Cooper Bradford Hefner (September 4, 1991). Conrad transformed the Playboy Mansion into a more traditional household for her children.[4]
After nine years of marriage, Conrad and Hefner separated although remained legally married. Hugh Hefner was quoted, "I would've been happy to divorce her when we separated, but she wanted to remain married for our boys."[5] Conrad then moved into a house next door to the Playboy Mansion. After an 11-year separation, Hefner filed for divorce stating irreconcilable differences in September 2009 after his youngest child turned 18;[5] the divorce was finalized in March 2010.[6]
^Hinant, Cindy (2012). "Grids Next Door". Gnome. 1 Winter (1): 48–53. In 1989 [Hefner] gave up the bachelor image entirely when he married Kimberly Conrad. Hefner and Conrad quickly adapted their lifestyle to that of a traditional marriage. The Mansion parties became more regulated, casual nudity ceased and children's toys replaced sex toys. Conrad says "I want this to be more like a real home. The girls still come over but they're wearing their bathing suits. I think that's nice."