The drama never ends with these two. Once again, all is not well in the Wright-Penn house. According to People, Robin Wright Penn filed for divorce from her husband Sean Penn last week. While the Marin-based celebrity couple have an off-again/on-again marriage, this latest development seems somewhat definite. "The papers, filed in Marin County, Calif., on Aug. 12, state that 'both parties have already agreed to [shared] custody' over their minor son, Hopper Jack, 16, and that 'the estranged couple have already agreed to division of all property.'" (Just who gets to call Tosca home away from home is still up in the air.) Irreconcilable differences is listed as the reason for the divorce. The two, married in 1989, have filed for divorce twice, as recently as May of this year. This also puts an end to rumors that Sean Penn might, in fact, be gay. He's not. With this kind of chronic drama, he is officially a lesbian.