Rap mogul Russell Simmons' estranged wife Kimora Lee Simmons has filed divorce papers in Los Angeles. The couple separated in 2006 after 15 years of marriage and both are now in serious relationships with other people. It has recently been rumoured that Kimora is pregnant with actor Djimon Hounsou's child, while Russell is romantically involved with model Porschla Coleman. On Wednesday (26Mar08), Kimora submitted divorce documents in Los Angeles County Superior Court, citing irreconcilable differences as the reason for the split. The 32-year-old is seeking physical custody of the couple's two daughters, reports website TMZ.com.