Rule 34 Dev - 4_toes all_fours anthro anus ass balls black_nose black_pawpads blue_eyes bulge canine clothing digitigrade doberman fur inside jockstrap looking_at_viewer looking_back male male_only mammal markings mgmr multicolored_fur muscular muscular_male pawpads paws perineum signature socks_(marking) sofa solo teeth toes two_tone_fur underwear|3326857136