It's been three years since I married my wife, whom I met at the same workplace, and we're still as in love as we were when we first got married. I'm a big dick, but thankfully my wife's pussy is tight, so we're able to have a happy sex life. However, lately I feel like my wife's dick is expanding little by little, and her wife seems to be feeling unsatisfied. A cock other than mine enters my wife's vagina...a cock bigger than mine.