Rule 34 Dev - 3boys age_difference anatomically_correct anatomically_correct_balls anatomically_correct_genitalia anatomically_correct_penis animal_genitalia animal_penis anthro ball_fondling balls barn big_penis blowjob bovid bovine bovine_balls bovine_penis canid canine canine_penis canis cattle clothed clothing detailed_background domestic_dog door equid equine equine_penis erect_nipples erection fellatio fingers fondling fur gay gay_blowjob genitals grass group group_sex hair hi_res holding_breast hoodie hooved_fingers horn horse horseballs horsecock knot larger_male licking male male/male male_only mammal mane mane_hair masturbation morticus navel navel_piercing nipple_outline nipples nude older_male oral outside partially_clothed penile penis piercing sex shirt size_difference smaller_male tank_top threesome tongue tongue_out topwear yaoi younger_male|4460308728