"Skiing weekend" joke

Jack decided to go skiing with his buddy, Bob. They loaded up Jack's station wagon and headed north. After driving for a few hours, they got caught in a terrible blizzard. They pulled into a nearby farm house and asked the attractive lady of the house if they could spend the night.

"I'm recently widowed," she explained, "and I'm afraid the neighbors will talk if I let you stay in my house."

"Not to worry," Jack said, "we'll be happy to sleep in the barn."

Nine months later, Jack got a letter from the widow's attorney. He called up his friend Bob and said, "Bob, do you remember that good-looking widow at the farm where we stayed?"

"Yes, I do."

"Did you happen to get up in the middle of the night, go up to the house and make love to her?"

"Yes, I have to admit that I did."

"Did you happen to use my name instead of telling her your name?"

Bob's face turned red and he said, "Yeah, I'm afraid I did."

"Well, thanks! She just died and left me everything!"