Are you suggesting Washington, Jefferson, Lincoln, Jackson and Grant were sex cases, la?
If one wanted to join his team of number crunchers* one would simply be subjected, via his ungodly contraption, to a succession of phalli of increasing girth until one cried out for mercy at which point he would make his decision.
*a coded reference to anyone prepared to fellate the deplorable old deviant.
It is, I believe, their first port of call