Please ensure that you are always in the inverted lower back arch position. The reverse C position is critically important as there is no point, purpose or rhyme/reason to doggystyle otherwise. As you probably know, when you are arched, the form of your buttocks is accentuated but the outward thrusting pressure from your thighs. As such, even if your buttocks is not genetically blessed, the appearance is given that it is. In short, no man wants to penetrate you in the canine form if your back is straightened out.
WRONG
WRONG