FURVERT!

1:1 2009 aaron_(artist)against_surface against_wall anthro anus backsack balls biceps big_balls big_butt big_muscles biped black_border black_hair border bovid bovid_horn bovine bovine_horn bull_horn butt cattle digital_media_(artwork)fur genitals hair half-erect horn looking_at_viewer looking_back male mammal muscular muscular_anthro muscular_male nude penis pose presenting presenting_hindquarters rear_view solo tail tattoo