Rap mogul SEAN `DIDDY' COMBS' pregnant girlfriend refused to let her then-ex introduce their son CHRISTIAN to Jennifer Lopez while he was dating the diva. Combs dumped Porter to date Lopez, leaving the former model bitter and heartbroken. But she made sure the rapper never played happy families with his new love, by refusing to let Diddy hang out with their son if she knew Lopez would be present. She tells US tabloid National Enquirer, "I'm a full black woman. We don't mix and mingle like that. I'd kill him dead. "Besides, does she look like the type that would want to play house and family?" Porter has since reconciled with the rap mogul and she's expecting his twins.