70's or 80's movie with blond sex slave?

[tmosby2011]

I saw a click a while back where a blond chick was being told what to do by an older woman in a restaurant in front of a man having lunch with them. This ended up with the blond being fingered (i think) while standing in the middle of a restaurant. I know it's not a porn clip, but an older movie that I'm assuming was porn or at least softcore. Anybody have any idea what movie this was????

 

[tmosby2011]

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