In documents filed in L.A. County Superior Court, Simpson cites “irreconcilable differences” as the reason for the divorce.
She’s asking for joint legal custody and primary physical custody of two-year-old Bronx.
Simpson, who is repped by disso queen Laura Wasser, is also asking for spousal and child support. Wentz is repped by Stacy Phillips.
Sources tell TMZ there is no prenup.