The sister-in-law's orchestrated sexual relationship. 'Just this once...' As the man's heart wavers, the woman's predatory instincts seize the opportunity. His moral compass crumbles like a bursting dam, unable to escape the quagmire of infidelity, forgetting his wife... forgetting himself... being taken... Every time they repeat their illicit physical relationship, the two of them become engrossed in forbidden pleasure. 'I wish I hadn't known... that my wife's sister was this much of a slut.'
