Those of us who want to "unnormalize" porn consider that a feature.
Here are some collected anecdotes, including Adams delighting in an explicit caricature he saw passed around at a dinner in France that portrayed Franklin with a female personification of America.
https://www.jstor.org/stable/20090161?seq=9
Also therein:
> Thus, while certainly not a roué, Adams-though he may have envied Franklin's flair for the courtly graces, and may have frowned slightly upon Franklin's way with the ladies-does not really seem to have felt much indignation toward the sage's somewhat uninhibited private life, and neither of these things can be interpreted as being decisive factors in turning Adams against Franklin.