Lifted a scene from a porn movie

There is a scene in this movie that seems EXACTLY like a scene from the porn movie "Playing With Fire" (1983). It is the scene where the father has fallen out of favor with his wife, tries to get back into the house after being locked out, goes around back, sees his wife through the glass door, she sees him watching her, acts a bit seductively, he then breaks through the door and has sex with her there on the floor. I would describe the scene in the porn movie now, but you can just reread the above because it is 100% the same. It's not a ripoff, in my opinion, but rather (probably) an inside joke, or homage. It would be somewhat difficult for me to believe that it was entirely coincidental, with no one that had seen the earlier film influencing the structure of this scene.

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