I've been married to my wife, whom I met at the same workplace, for three years, and we're still as in love as when we first got married. I have a huge cock, but thankfully my wife's vagina is tight, so we have a happy sex life. However, recently I feel like my wife's vagina is expanding little by little, and she seems somehow unsatisfied. I can't stop thinking that there's a cock other than mine in her vagina...a cock bigger than mine, so I decided to hire a detective to investigate her infidelity...