[Luci stares at Xanxus. She said she wouldn't laugh or react poorly, but she's really not sure what to do here.]

...Okay, hold on, calm down for a second. [She puts her hands on his shoulders, trying to ground him.] How can you be sure it was your kid? Maybe you were... I don't know, baby sitting? Maybe it was somebody in your family's kid? I mean, you're wild, but you really think you knocked up a girl at 16?