I enjoy the butterflies and nervous excitement that sets in at the beginning, and then listening to her moans when he's fucking her. I think watching a good-looking guy with a big dick give my wife 3 orgasms, then knowing that same wife is still going to be frying me eggs for breakfast, has a certain power/control aspect to it we "cuckolds" are reluctant to admit exists. And it's my belief that every orgasm she has is an admission, an admission that she's as much a pervert as I am. How I love her so.