>>213716769That's how it works, dumbass,
Cavemen used to fuck doggystyle, its the natural way. They would be primarily, instinctually attracted to juicy asses. Hence, they would fuck the asshole most of the time and the pussy now and then (so that humans would not breed too much in times when food was scarce). This is also why men are attracted to tits/cleavage, it reminds them of the ass.