Rule 34 Dev - abs anthro balls black_body black_fur canid canine canis casual_erection casual_nudity dobermann domestic_dog erection foreskin fur genitals hi_res humanoid_genitalia humanoid_penis looking_at_viewer male mammal manly muscular muscular_anthro muscular_male navel nipples nude pecs penis pinscher simple_background solo solo_focus tonygonza15 white_background|9656238816