Rule 34 Dev - 2020 3:4 animal_genitalia animal_penis anthro anthro_on_anthro ass balls big_penis black_penis brown_body brown_fur canid canine canine_penis canis claws dog_tags domestic_dog duo embrace erection frottage fur gay genitals german_shepherd herding_dog hi_res holding_penis kissing knot larger_male male male/male male_only mammal masturbation multicolored_body multicolored_fur muscular muscular_male mutual_masturbation nipples nude pastoral_dog pecs penile penile_masturbation penis sex sharp_teeth side_view size_difference smaller_male teeth thebigslick tongue tongue_out two_tone_body two_tone_fur|4224721520