Wrong hole

So I'm 5'4 and my SO is 5'11, not a huge difference except all of my height is in my torso, so I have short legs, so sometimes when we are doing doggy style standing up he almost puts it in my butt hole because that's just what is parallel to his penis, and I have to remind him that I'm short and then stand on my tippy toes. Now I have no issues with anal, nor has he ever showed interest, it's just funny that I'm like 'hey, what you want is down here'