aka Sueca Bisexual Necesita Semental / Swedish Bisexual Needs a Stallion / The Vices of a Madam. A wealthy old man Felipe has a young blonde sex-hungry wife named Simona but unfortunately he cannot satisfy Simona's sexual desire since a car accident has made him paralysed from the waist downward requiring him to sit on a wheelchair. Simona turns to Felipe's lesbian secretary Mirella to satisfy her sexual hunger. When Felipe's handsome and robust son Luis returns from the US, stepmom Simona turns her eyes on her stepson. Luis and Simona become attracted to each other and a passionate incestuous affair develops between them much to the chagrin of lesbian Mirella who feels left out of this sexual tryst. Mirella seeks comfort from Roberto the butler.

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