the answer is as simple as not many male dogs being into any interaction with their tailholes... that's what it boils down to (at least, if you're not a zoosadist), what they want.
with that said, i enjoy doing both bottoming and topping.
I salute your luck!i must have had a lot of luck then...
It feels so good and so right.Bottoming. No question.
Once I feel those paws on your waist or hips and he grips and pumps, all I want is to get bred and pumped full.