"A good sport!" joke

John receives a phone call.

"Hello," he answers.
The voice on the other end says, "This is Susan.
We met at a party about 3 months ago."

John: "hmmm... Susan? You say we met 3 months ago?"

Susan: "Yes, it was at Bill's house. After the party gave me a ride home. On the way home, we parked and got into the back seat. You told me I was a good sport."

John: "Oh, yeah! Susan! How are have you been?"

Susan: "Well, I'm pregnant and I'm going to kill myself."

John: "Say, you really ARE a good sport!"