Rule 34 Dev - 2015 2animals 2boys 2horses anal anal_sex animal_genitalia animal_penis anus ass balls big_balls big_penis blinders blurred_background blurry bridle brown_fur cum cum_everywhere cum_inside cum_string cumshot day detailed_background draft_horse duo equine equine_penis erection eyewear feral feral_on_feral feral_only fetlocks flared_penis forest forest_sex full_body fur gay glans grass hair hands-free harness hi_res horse horsecock huge_cock huge_flare long_hair lostdragon01 lumber male male/male male_on_male male_only mammal messy muscular nature navel no_humans nude orgasm outdoors penetration penis sex stump tree vein wood yaoi|2199261336