Rule 34 Dev - 2024 2boys ai_generated animal_genitalia animal_humanoid animal_penis anthro anthro_on_anthro avaru black_balls bodily_fluids brown_body brown_fur canid canine closed_eyes duo equid equine equine_genitalia equine_penis fox fox_ears fox_humanoid fur gay genital_fluids genitals hand_on_head horse humanoid interspecies male male/male male_focus male_only mammal mammal_humanoid mottled_penis multicolored_body multicolored_fur muscular muscular_male navel open_mouth oral oral_penetration oral_sex penis sagging_balls saliva sex size_difference tagme testicles tongue tongue_out tuft tufted_fur veiny_muscles veiny_penis yaoi|12519742232