Quote from Barney in Spoiler Alert
Barney: Ted, let me tell you a little story about a young lady I wanted to have sex with... Lucilia. On a white sand beach in Rio de Janeiro, we made love for ten straight hours. When we were done, she applauded and told me I was far, far better than the best lover she could possibly imagine, and that I had restored her faith in God. Ted: What does this have to do with Cathy? Barney: Who's Cathy?