Once upon a time, last century, I bought a second-hand copy of a special issue of the gay SM magazine Drummer with special theme "Drummer Daddies". Back then, images of mature and older men doing SM were scarce and then they were usually in command of whatever situation they got into. That issue of Drummer proved to be no exception, except for a photo feature at the end about a "gringo daddy" and a couple of "South-of-the-border boys" that was short but very evocative.
That was the inspiration for this drawing which I have only ever posted on a yahoo group, years ago (remember Yahoo Groups?). The reason for my wanting that drawing to be seen only by a select audience was that I'm well aware that the word "wetback" is a racist slur. So a disclaimer: I do not at all endorse the use of that word. But I thought the gringo daddy, who is basically a sex tourist, would feel some masochistic pleasure at being roughly manhandled by a man whom he considers racially inferior. It would be part of his humiliation. So for the gringo daddy to be "in character", the w word had to be used, and that is the only reason.