I read through dozens of articles that had reached with confidence the conclusion that Benjamin Franklin was a ladies' man and sexually promiscuous, but I didn't find anything in his (nor among his contemporaries) letters and other communication with women in France or elsewhere that would lead to that conclusion except when authors made big leaps logically and inserted lots of their own bias.
One of quotes I found as I was researching Benjamin Franklin was this one from Ezra Taft Benson:
When one casts doubt about the character of these noble sons of God, I believe he or she will have to answer to the God of heaven for it.
Here is the whole speech for context: https://speeches.byu.edu/talks/ezra-taft-benson_gods-hand-na...