GEORGE: My mother caught me.
JERRY: "Caught" you? Doing what?
GEORGE: You know. I was alone..
ELAINE: You mean..?!
KRAMER: She caught you?
GEORGE: ..I stopped by the house to drop the car off, and I went inside for a few minutes.. Nobody was there - they're supposed to be working. My mother had a Glamour magazine, I started leafing through it..
GEORGE: ..So, one thing lead to another..
JERRY: So, what did she do?
GEORGE: she screams, "George, what are you doing?! My God!"