03/14/2008 at 04:00 PM EDT
Kimora Lee Simmons has one word for media speculation about her personal life: "Lies."
"I'm in the paper every single week – that I had a fight with my ex-husband, or that I was mad at one of his girlfriends, or that I'm pregnant, or that I demand Fiji water," she said Friday at Washington University in St. Louis. "Lies upon lies upon lies."
Earlier this month, the New York Post
's Page Six
reported that Simmons, 32, and her boyfriend, actor Djimon Hounsou, 43, are expecting a baby.
Simmons, who looked curvaceous but bump-free in a body-clinging salmon dress and who was in town as part of St. Louis Fashion Week, did not take direct questions about the pregnancy rumors, but said: "[Reporters] call and ask if I'm pregnant. It all came from Page Six. ... You guys shouldn't believe it."
Simmons, the author of Fabulousity: What It Is and How to Get It
added, "People believe what they want to believe because it's sensational and it's fun. And they think that's fabulous. I encourage readers to ignore it and seek out the truth."
The fashion designer has two daughters, Ming Lee, 8, and Aoki Lee, 5, with ex-husband, Phat Farm and Def Jam founder Russell Simmons.