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You can find such scenes in some older films from 1980s, when many porn films were made with a plot and a story line.
Having a plot and a story line in porn films has gone out of fashion a long time ago. Because viewers want to see real and genuine sex, rather than acting and pretending.
You don't want to have any kind of acting or pretending in a porn film even for the sake of a story line, because once you catch someone in the act of lying, then it's hard to believe anything the person says or does. It's hard to believe that the sex is genuine, when the guy and the gal both have just acted and pretended in their role playing with each other.

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