Rule 34 Dev - 2boys all_fours amwulf anal anal_sex anthro ass ass_up backsack balls biceps canine cervine close-up closed_eyes deer doggy_style duo erection from_behind furry furry_only german_shepherd humanoid_penis internal kale_(character) male male_only mammal multiple_males muscles no_humans nude penetration penis sex standing uperior yaoi|1889994120