Alex: Hey, Luke. Big day for you, huh?
Luke: Why?
Alex: Because you will get to meet your real mom.
Luke: What? [scoffs]
Alex: We all made a pact we'd deny it until you turned 21. But that's the real reason Dad's old girlfriend's coming over. She's your mom, and if she likes you, you'll go live with her.
Luke: I'm not adopted. I'm asking Mom.
Alex: You mean Mrs. Dunphy? She's not going to tell you the truth.