Nailed it.

Darth:  “Luke…”

Luke:  “Are you… are you gonna tell me you’re my father?”

Darth:  “What?  No.  Jesus.  Why would I… no no…”

Luke:  “Oh, sorry, I thought that’s where you were going.”

Darth:  “Nope.  Actually I just wanted to tell you that during that lightsaber battle back there…”

Luke:  “Oh yeah… I agree.”

Darth & Luke together:  “We totally nailed it.”