Rule 34 Dev - 2018 2boys anal anal_sex anthro anthro_on_feral balls big_dom_small_sub big_penis blood brown_fur caldalera canine duo feral fox from_behind_position fur furry interspecies knot larger_male male male_only male_penetrating mammal mounting penetration penis questionable_consent rat rodent scratching sex size_difference smaller_male tongue white_fur yaoi zoophilia|2924713456