Does Oprah Know Truth About Rob and Kristen?

At a taping earlier this week for her show, Oprah Winfrey reportedly confronted Twilight stars Robert Pattinson and Kristen Stewart about their much-assumed and obsessed-about romance. While going over questions she would ask them on the air, Oprah told them she had to "go there," but wouldn't press it on-camera, as long as they told her the scoop offstage. “Both Rob and Kristen's people and Summit [Entertainment] then confirmed ahead of time [Rob and Kristen] are together and are dating. One hundred percent,” a source tells E! Online. When cameras rolled and she popped the question, the couple deflected with jokes—Rob said Kristen was pregnant and Kristen said Rob was having the baby.