FURVERT!

1:1 anal anthro big_butt bouncing_butt butt canid canine canis dominant duo facesitting fur grey_body grey_fur grin hi_res huge_butt larger_dom looking_back male male/male mammal manly mythological_canine mythological_creature mythology nabb-kun nipples oral rimming sex sitting sitting_on_another size_difference smile tail thick_thighs werecanid werecanine werecreature werewolf wolf