Flying F**k
From Gomerpedia
A flying f**k refers to sex while in flight. It is typically performed on civilian aircraft (the so-called "Mile High Club") since coitus can be difficult to achieve at Mach 1. The exceptions to the rule are superheroes with the powers of flight. For example, it is not uncommon for the Man of Steel Superman and Lois Lane to engage in flying f**ks.
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