Wisdom Comes with Age

Bob, a 70 year old extremely wealthy widower, shows up at the Country Club with a breathtakingly beautiful and very sexy 25 year-old blonde who  knocks everyone's socks off with her youthful sex appeal and charm. She hangs on Bob's arm and listens intently to his every word.
His buddies at the club are all envious. They corner him and ask, "Bob, how'd you get the trophy girlfriend?"
Bob replies, "Girlfriend? She's my wife!"
They're knocked over, but continue to ask. "So, how'd you persuade her to marry you?"
Bob says, "I lied about my age."
His friends are fascinated, "What do you mean? Did you tell her you were only 50?"
Bob smiles and says, "No, I told her I was 90."