A married couple is invited to a shoot by a famous photographer who once helped the wife. When the male nude model calls in sick, the wife volunteers her husband as the emergency replacement. Constant close contact with a slim, huge-breasted model leaves him hopelessly hard. During each five-minute break, she whispers that they will be in trouble if they are caught and offers to make him cum. While his wife is absorbed in the monitor, the model uses her teasing tongue and dominant technique to seduce him. He spends the entire day sneaking in rushed sex with her, ultimately filling her with ten secret creampies behind his wife's back.