Rule 34 Dev - 1boy 2020 abs abstract_background anthro balls bodily_fluids bovid bovine brown_body bruteandbrawn canid canine canis cattle chain_necklace circumcised curved_penis dog_tags domestic_dog erection genitals hi_res hooves horn humanoid_genitalia humanoid_penis hybrid indigo_the_bullpup lactating looking_at_viewer male male_lactation male_only mammal muscular muscular_anthro muscular_male navel nipples pecs penis simple_background smile solo solo_male standing tattoo|4583563920