This trope is a staple in adult media because it plays on themes of power dynamics, exhibitionism, and the thrill of the "forbidden" within a safe, agreed-upon framework. It transforms a private act into a staged performance for the benefit of the observer.
Here is an informative look at the lessons this story offers for modern life. The Fable: A Cycle of Criticism Donkey fucks married woman while hubby is watching
When the "hubby" and wife focus on what the audience thinks, they lose the joy of their journey. The moral remains clear: —and you might lose your donkey (or your sanity) in the process. Conclusion: Stay the Course This trope is a staple in adult media