Rule 34 Dev - 2024 2boys abs ai_generated animal_humanoid anthro anthro_on_human avaru biceps black_nipples black_nose brown_hair canid canine canine_penis canis duo freckles fur furry gay grey_body grey_fur hair hug human human_on_anthro humanoid male male_focus male_only mammal muscular muscular_male nipples pecs size_difference smaller_male tuft tufted_fur veiny_abs veiny_biceps veiny_muscles white_fur wolf yaoi|13041840688