A man who wants to see his sister being cuckolded by a stranger consults with an erotic masseuse, and the entire plan to cuckold her is secretly filmed! Unable to resist his desire to see his sister having sex, the younger brother commissions a secret filming plan. Two men, posing as a photographer and the president of an entertainment agency, persuade his sister, who dreams of becoming a model, to join in. During a swimsuit photoshoot in a hotel room, she is offered sexual favours and reluctantly agrees, but is dangled the possibility of a modeling debut. The caressing gets the sister excited, so he half-forces her to agree to the filming, and she is filmed squirting, sucking the man's penis and getting penetrated. The president, who had left the room at one point, joins in, and the threesome ends in agony.
