Rule 34 Dev - 2015 2boys abs anal animal_genitalia anthro anus ass back balls biceps big_penis black_penis blue_background claws clenched_teeth equine fangs feet feline from_behind fur furry gay hair hairy highres hindpaw horse horsecock humanoid_feet interspecies lion male male_only mammal monochrome muscular nude pain pawpads paws pecs penetration penis perineum precum predator/prey sex sharp_claws sharp_teeth sheath simple_background soles stripes tail_grab teeth testicles tithinian toe_claws veins veiny_penis yaoi zebra|2102644104