Jay Pritchett: God knows I couldn't love them more, but even the Kennedy's didn't get together this often.
Luke: Ew gross. I didn't know Grandpa could still do it.
Phil: Don't be stupid Luke, anyone could do it with Gloria.
Jay Pritchett: Isn't it enough this family spends a lot of time together? Now we have to inbreed.
Phil Dunphy: Gotta fix that step.
Claire Dunphy: The way he looked at me, it was like I wore a tube top in church.
Gloria Delgado-Pritchett: Family is family. Whether it's the one you start out with, the one you end up with, or the family that you gain along the way.
Answer: He has seen himself dancing, and is mortified at how bad he looks.