FURVERT!

1:1 animal_genitalia animal_penis balls big_balls big_butt big_nipples big_penis blind_eye bovid bovine butt cattle dominant duo equine_genitalia equine_penis felid genitals hi_res huge_balls huge_penis larger_dom male male/male mammal muscular muscular_male nipples paws penis rexarum_(artist)sex simple_background size_difference thick_thighs vein veiny_penis