Rule 34 Dev - abs anatomically_correct anatomically_correct_genitalia anatomically_correct_penis animal_genitalia animal_penis anthro ass balls bernese_mountain_dog black_pawpads brown_body brown_fur canid canine canine_penis canis claws domestic_dog erection fur genitals hand_behind_head hobbesdawg knot looking_at_viewer lying male mammal mocha-wing molosser mountain_dog muscular muscular_anthro muscular_male navel nude on_back pawpads paws pecs penis perineum shoulder_tuft simple_background smile solo spread_legs spreading swiss_mountain_dog tan_body tan_fur teeth toothy_grin tuft vein veiny_knot veiny_penis whisker_spots yellow_sclera|6017501264