Ok, so Terminator, uh..6, came out last year. But, I only want to address one thing; the fact the Terminator, who killed (spoilers) John Connor, lived a normal life afterwards.
Like, he has a wife, of many years.
SO. Unless he tells her something like he's a war vet, with certain injuries, it would be presumed he has a functional (cue Data from TNG, "I'm fully functional.") member, and also, asshole.
But, aside from recognition purposes, there would be no reason for a Terminator to have such features. Therefore, one could make an argument about the machines having, at least for show, a Schwarzeschlong.
However, I cannot fathom why they would need to fashion an anus for the T-800's.
LET ALONE, why Skynet would give them a functioning digestive system, unless ole Arnie explained away Never eating, or using the bathroom, to his wife of a couple decades.
So, I put forth that the book Everybody Poops needs a slight re-edit.
...What? Well, what do You think about at 11:30 at night??