Rule 34 Dev - alpha_male anal anal_sex animal_genitalia animal_penis anthro anthro_on_anthro anthro_penetrated anthro_penetrating anthro_penetrating_anthro ball_size_difference balls big_penis biped blakenfen bodily_fluids canid canine canine_genitalia canine_penis canis cheating cheating_boyfriend claws cuckold cutaway dialogue domestic_dog duo english_text equid equine equine_genitalia equine_penis flared_penis genital_fluids genitals hi_res horse infidelity internal interspecies knot locker_room male male/male male_penetrated male_penetrating male_penetrating_male mammal musk pawpads peeing penetration penile penile_penetration penis penis_in_ass penis_size_difference sex size_difference stomach_bulge sweat text texting urine urine_in_ass vein veiny_penis verbal verbal_domination verbal_submission watersports|9730118984