FURVERT!

abs anal anal_penetration animal_genitalia anthro anthro_on_anthro anus balls biceps big_balls big_muscles big_penis bng canid canine canis domestic_dog dragon duo erection eyewear flaccid genitals glasses greyscale griggle horn interspecies male male/male male_on_bottom male_on_top male_penetrated male_penetrating male_penetrating_male mammal monochrome muscular muscular_male mythological_creature mythological_scalie mythology nipples nude on_bottom on_top pecs penetration penis reverse_cowgirl_position scales scalie sex straddling vein