I don't remember much but. The movie was possibly a B movie or maybe softcore porn. There is a couple of criminals (male and female) who take over a man and wife's house. The 2 men go out into the desert and the married man gets knocked out and left for dead. So all I remember is the wife gets taken hostage and she ends up having sex with the male and female criminals and at the end the man comes back from the desert and saves her. I remember the woman hostage wasn't tied up or anything and she pretty much liked giving it up to the criminals. Any Ideas? Might have been from the 80's or 90's.