Meemaw: What do you think, George? Is it time to have “the talk” with him?

Missy Cooper: What talk?

Mary Cooper: No talk. Nobody’s talking.

Sheldon Cooper: If “the talk” is in regards to human reproduction, I already understand how that works.

Mary Cooper: How do you know that?

Missy Cooper: I told him.

Mary Cooper: Oh, Lord.

From Young Sheldon – Season 1 Episode 15: ‘Dolomite, Apple Slices, and a Mystery Woman’ (1×15)