Rule 34 Dev - 2015 anal anal_sex animal_genitalia anthro anus balls bondage bound claws digitigrade duo equine furry green_eyes hair hands_tied horn horse horsecock interspecies ketu klongi larger_male licking lizzard male mammal multiple_males muscles nude penetration penis sex size_difference smaller_male smile spread_legs spreading stand_and_carry_position standing stripes tongue tongue_out yaoi|1974694048