Holly Madison fears her ex-boyfriend Hugh Hefner may be rushing into his latest engagement.
The model told Life & Style magazine the 84-year-old Playboy magazine founder is "making a hasty decision" by getting engaged to 24-year-old Playmate Crystal Harris.
Holly revealed she arranged a meeting with the couple after reading on Twitter that Hefner had proposed. The meeting - filmed for her Holly's World reality show - was "definitely awkward", she said.
The 31-year-old insisted she wished the couple the best, but told them Crystal had better not do Hugh wrong or she would "kick her butt".
Holly and Hugh dated for six years until their breakup in 2008 because she wanted to get married and he didn't.
This would be the third marriage for the magazine magnate. He divorced former Playmate Kimberly Conrad last year.